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1da177e4 LT |
1 | /* sis900.c: A SiS 900/7016 PCI Fast Ethernet driver for Linux. |
2 | Copyright 1999 Silicon Integrated System Corporation | |
ea37ccea | 3 | Revision: 1.08.09 Sep. 19 2005 |
1da177e4 LT |
4 | |
5 | Modified from the driver which is originally written by Donald Becker. | |
6 | ||
7 | This software may be used and distributed according to the terms | |
8 | of the GNU General Public License (GPL), incorporated herein by reference. | |
9 | Drivers based on this skeleton fall under the GPL and must retain | |
10 | the authorship (implicit copyright) notice. | |
11 | ||
12 | References: | |
13 | SiS 7016 Fast Ethernet PCI Bus 10/100 Mbps LAN Controller with OnNow Support, | |
14 | preliminary Rev. 1.0 Jan. 14, 1998 | |
15 | SiS 900 Fast Ethernet PCI Bus 10/100 Mbps LAN Single Chip with OnNow Support, | |
16 | preliminary Rev. 1.0 Nov. 10, 1998 | |
17 | SiS 7014 Single Chip 100BASE-TX/10BASE-T Physical Layer Solution, | |
18 | preliminary Rev. 1.0 Jan. 18, 1998 | |
19 | ||
ea37ccea | 20 | Rev 1.08.09 Sep. 19 2005 Daniele Venzano add Wake on LAN support |
1da177e4 LT |
21 | Rev 1.08.08 Jan. 22 2005 Daniele Venzano use netif_msg for debugging messages |
22 | Rev 1.08.07 Nov. 2 2003 Daniele Venzano <webvenza@libero.it> add suspend/resume support | |
23 | Rev 1.08.06 Sep. 24 2002 Mufasa Yang bug fix for Tx timeout & add SiS963 support | |
24 | Rev 1.08.05 Jun. 6 2002 Mufasa Yang bug fix for read_eeprom & Tx descriptor over-boundary | |
25 | Rev 1.08.04 Apr. 25 2002 Mufasa Yang <mufasa@sis.com.tw> added SiS962 support | |
26 | Rev 1.08.03 Feb. 1 2002 Matt Domsch <Matt_Domsch@dell.com> update to use library crc32 function | |
27 | Rev 1.08.02 Nov. 30 2001 Hui-Fen Hsu workaround for EDB & bug fix for dhcp problem | |
28 | Rev 1.08.01 Aug. 25 2001 Hui-Fen Hsu update for 630ET & workaround for ICS1893 PHY | |
29 | Rev 1.08.00 Jun. 11 2001 Hui-Fen Hsu workaround for RTL8201 PHY and some bug fix | |
30 | Rev 1.07.11 Apr. 2 2001 Hui-Fen Hsu updates PCI drivers to use the new pci_set_dma_mask for kernel 2.4.3 | |
31 | Rev 1.07.10 Mar. 1 2001 Hui-Fen Hsu <hfhsu@sis.com.tw> some bug fix & 635M/B support | |
32 | Rev 1.07.09 Feb. 9 2001 Dave Jones <davej@suse.de> PCI enable cleanup | |
33 | Rev 1.07.08 Jan. 8 2001 Lei-Chun Chang added RTL8201 PHY support | |
34 | Rev 1.07.07 Nov. 29 2000 Lei-Chun Chang added kernel-doc extractable documentation and 630 workaround fix | |
35 | Rev 1.07.06 Nov. 7 2000 Jeff Garzik <jgarzik@pobox.com> some bug fix and cleaning | |
36 | Rev 1.07.05 Nov. 6 2000 metapirat<metapirat@gmx.de> contribute media type select by ifconfig | |
37 | Rev 1.07.04 Sep. 6 2000 Lei-Chun Chang added ICS1893 PHY support | |
38 | Rev 1.07.03 Aug. 24 2000 Lei-Chun Chang (lcchang@sis.com.tw) modified 630E eqaulizer workaround rule | |
39 | Rev 1.07.01 Aug. 08 2000 Ollie Lho minor update for SiS 630E and SiS 630E A1 | |
40 | Rev 1.07 Mar. 07 2000 Ollie Lho bug fix in Rx buffer ring | |
41 | Rev 1.06.04 Feb. 11 2000 Jeff Garzik <jgarzik@pobox.com> softnet and init for kernel 2.4 | |
42 | Rev 1.06.03 Dec. 23 1999 Ollie Lho Third release | |
43 | Rev 1.06.02 Nov. 23 1999 Ollie Lho bug in mac probing fixed | |
44 | Rev 1.06.01 Nov. 16 1999 Ollie Lho CRC calculation provide by Joseph Zbiciak (im14u2c@primenet.com) | |
45 | Rev 1.06 Nov. 4 1999 Ollie Lho (ollie@sis.com.tw) Second release | |
46 | Rev 1.05.05 Oct. 29 1999 Ollie Lho (ollie@sis.com.tw) Single buffer Tx/Rx | |
47 | Chin-Shan Li (lcs@sis.com.tw) Added AMD Am79c901 HomePNA PHY support | |
48 | Rev 1.05 Aug. 7 1999 Jim Huang (cmhuang@sis.com.tw) Initial release | |
49 | */ | |
50 | ||
51 | #include <linux/module.h> | |
52 | #include <linux/moduleparam.h> | |
53 | #include <linux/kernel.h> | |
54 | #include <linux/string.h> | |
55 | #include <linux/timer.h> | |
56 | #include <linux/errno.h> | |
57 | #include <linux/ioport.h> | |
58 | #include <linux/slab.h> | |
59 | #include <linux/interrupt.h> | |
60 | #include <linux/pci.h> | |
61 | #include <linux/netdevice.h> | |
62 | #include <linux/init.h> | |
63 | #include <linux/mii.h> | |
64 | #include <linux/etherdevice.h> | |
65 | #include <linux/skbuff.h> | |
66 | #include <linux/delay.h> | |
67 | #include <linux/ethtool.h> | |
68 | #include <linux/crc32.h> | |
69 | #include <linux/bitops.h> | |
12b279f9 | 70 | #include <linux/dma-mapping.h> |
1da177e4 LT |
71 | |
72 | #include <asm/processor.h> /* Processor type for cache alignment. */ | |
73 | #include <asm/io.h> | |
74 | #include <asm/irq.h> | |
75 | #include <asm/uaccess.h> /* User space memory access functions */ | |
76 | ||
77 | #include "sis900.h" | |
78 | ||
79 | #define SIS900_MODULE_NAME "sis900" | |
ea37ccea | 80 | #define SIS900_DRV_VERSION "v1.08.09 Sep. 19 2005" |
1da177e4 LT |
81 | |
82 | static char version[] __devinitdata = | |
83 | KERN_INFO "sis900.c: " SIS900_DRV_VERSION "\n"; | |
84 | ||
85 | static int max_interrupt_work = 40; | |
86 | static int multicast_filter_limit = 128; | |
87 | ||
88 | static int sis900_debug = -1; /* Use SIS900_DEF_MSG as value */ | |
89 | ||
90 | #define SIS900_DEF_MSG \ | |
91 | (NETIF_MSG_DRV | \ | |
92 | NETIF_MSG_LINK | \ | |
93 | NETIF_MSG_RX_ERR | \ | |
94 | NETIF_MSG_TX_ERR) | |
95 | ||
96 | /* Time in jiffies before concluding the transmitter is hung. */ | |
97 | #define TX_TIMEOUT (4*HZ) | |
1da177e4 LT |
98 | |
99 | enum { | |
100 | SIS_900 = 0, | |
101 | SIS_7016 | |
102 | }; | |
f71e1309 | 103 | static const char * card_names[] = { |
1da177e4 LT |
104 | "SiS 900 PCI Fast Ethernet", |
105 | "SiS 7016 PCI Fast Ethernet" | |
106 | }; | |
107 | static struct pci_device_id sis900_pci_tbl [] = { | |
108 | {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_900, | |
109 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_900}, | |
110 | {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7016, | |
111 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_7016}, | |
112 | {0,} | |
113 | }; | |
114 | MODULE_DEVICE_TABLE (pci, sis900_pci_tbl); | |
115 | ||
116 | static void sis900_read_mode(struct net_device *net_dev, int *speed, int *duplex); | |
117 | ||
f71e1309 | 118 | static const struct mii_chip_info { |
1da177e4 LT |
119 | const char * name; |
120 | u16 phy_id0; | |
121 | u16 phy_id1; | |
122 | u8 phy_types; | |
123 | #define HOME 0x0001 | |
124 | #define LAN 0x0002 | |
125 | #define MIX 0x0003 | |
126 | #define UNKNOWN 0x0 | |
127 | } mii_chip_table[] = { | |
128 | { "SiS 900 Internal MII PHY", 0x001d, 0x8000, LAN }, | |
129 | { "SiS 7014 Physical Layer Solution", 0x0016, 0xf830, LAN }, | |
130 | { "Altimata AC101LF PHY", 0x0022, 0x5520, LAN }, | |
131 | { "AMD 79C901 10BASE-T PHY", 0x0000, 0x6B70, LAN }, | |
132 | { "AMD 79C901 HomePNA PHY", 0x0000, 0x6B90, HOME}, | |
133 | { "ICS LAN PHY", 0x0015, 0xF440, LAN }, | |
134 | { "NS 83851 PHY", 0x2000, 0x5C20, MIX }, | |
135 | { "NS 83847 PHY", 0x2000, 0x5C30, MIX }, | |
136 | { "Realtek RTL8201 PHY", 0x0000, 0x8200, LAN }, | |
137 | { "VIA 6103 PHY", 0x0101, 0x8f20, LAN }, | |
138 | {NULL,}, | |
139 | }; | |
140 | ||
141 | struct mii_phy { | |
142 | struct mii_phy * next; | |
143 | int phy_addr; | |
144 | u16 phy_id0; | |
145 | u16 phy_id1; | |
146 | u16 status; | |
147 | u8 phy_types; | |
148 | }; | |
149 | ||
150 | typedef struct _BufferDesc { | |
151 | u32 link; | |
152 | u32 cmdsts; | |
153 | u32 bufptr; | |
154 | } BufferDesc; | |
155 | ||
156 | struct sis900_private { | |
157 | struct net_device_stats stats; | |
158 | struct pci_dev * pci_dev; | |
159 | ||
160 | spinlock_t lock; | |
161 | ||
162 | struct mii_phy * mii; | |
163 | struct mii_phy * first_mii; /* record the first mii structure */ | |
164 | unsigned int cur_phy; | |
da369b01 | 165 | struct mii_if_info mii_info; |
1da177e4 LT |
166 | |
167 | struct timer_list timer; /* Link status detection timer. */ | |
168 | u8 autong_complete; /* 1: auto-negotiate complete */ | |
169 | ||
170 | u32 msg_enable; | |
171 | ||
172 | unsigned int cur_rx, dirty_rx; /* producer/comsumer pointers for Tx/Rx ring */ | |
173 | unsigned int cur_tx, dirty_tx; | |
174 | ||
175 | /* The saved address of a sent/receive-in-place packet buffer */ | |
176 | struct sk_buff *tx_skbuff[NUM_TX_DESC]; | |
177 | struct sk_buff *rx_skbuff[NUM_RX_DESC]; | |
178 | BufferDesc *tx_ring; | |
179 | BufferDesc *rx_ring; | |
180 | ||
181 | dma_addr_t tx_ring_dma; | |
182 | dma_addr_t rx_ring_dma; | |
183 | ||
184 | unsigned int tx_full; /* The Tx queue is full. */ | |
185 | u8 host_bridge_rev; | |
186 | u8 chipset_rev; | |
187 | }; | |
188 | ||
189 | MODULE_AUTHOR("Jim Huang <cmhuang@sis.com.tw>, Ollie Lho <ollie@sis.com.tw>"); | |
190 | MODULE_DESCRIPTION("SiS 900 PCI Fast Ethernet driver"); | |
191 | MODULE_LICENSE("GPL"); | |
192 | ||
193 | module_param(multicast_filter_limit, int, 0444); | |
194 | module_param(max_interrupt_work, int, 0444); | |
195 | module_param(sis900_debug, int, 0444); | |
196 | MODULE_PARM_DESC(multicast_filter_limit, "SiS 900/7016 maximum number of filtered multicast addresses"); | |
197 | MODULE_PARM_DESC(max_interrupt_work, "SiS 900/7016 maximum events handled per interrupt"); | |
198 | MODULE_PARM_DESC(sis900_debug, "SiS 900/7016 bitmapped debugging message level"); | |
199 | ||
200 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
201 | static void sis900_poll(struct net_device *dev); | |
202 | #endif | |
203 | static int sis900_open(struct net_device *net_dev); | |
204 | static int sis900_mii_probe (struct net_device * net_dev); | |
205 | static void sis900_init_rxfilter (struct net_device * net_dev); | |
206 | static u16 read_eeprom(long ioaddr, int location); | |
da369b01 | 207 | static int mdio_read(struct net_device *net_dev, int phy_id, int location); |
1da177e4 LT |
208 | static void mdio_write(struct net_device *net_dev, int phy_id, int location, int val); |
209 | static void sis900_timer(unsigned long data); | |
210 | static void sis900_check_mode (struct net_device *net_dev, struct mii_phy *mii_phy); | |
211 | static void sis900_tx_timeout(struct net_device *net_dev); | |
212 | static void sis900_init_tx_ring(struct net_device *net_dev); | |
213 | static void sis900_init_rx_ring(struct net_device *net_dev); | |
214 | static int sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev); | |
215 | static int sis900_rx(struct net_device *net_dev); | |
216 | static void sis900_finish_xmit (struct net_device *net_dev); | |
217 | static irqreturn_t sis900_interrupt(int irq, void *dev_instance, struct pt_regs *regs); | |
218 | static int sis900_close(struct net_device *net_dev); | |
219 | static int mii_ioctl(struct net_device *net_dev, struct ifreq *rq, int cmd); | |
220 | static struct net_device_stats *sis900_get_stats(struct net_device *net_dev); | |
221 | static u16 sis900_mcast_bitnr(u8 *addr, u8 revision); | |
222 | static void set_rx_mode(struct net_device *net_dev); | |
223 | static void sis900_reset(struct net_device *net_dev); | |
224 | static void sis630_set_eq(struct net_device *net_dev, u8 revision); | |
225 | static int sis900_set_config(struct net_device *dev, struct ifmap *map); | |
226 | static u16 sis900_default_phy(struct net_device * net_dev); | |
227 | static void sis900_set_capability( struct net_device *net_dev ,struct mii_phy *phy); | |
228 | static u16 sis900_reset_phy(struct net_device *net_dev, int phy_addr); | |
229 | static void sis900_auto_negotiate(struct net_device *net_dev, int phy_addr); | |
230 | static void sis900_set_mode (long ioaddr, int speed, int duplex); | |
231 | static struct ethtool_ops sis900_ethtool_ops; | |
232 | ||
233 | /** | |
234 | * sis900_get_mac_addr - Get MAC address for stand alone SiS900 model | |
235 | * @pci_dev: the sis900 pci device | |
236 | * @net_dev: the net device to get address for | |
237 | * | |
238 | * Older SiS900 and friends, use EEPROM to store MAC address. | |
239 | * MAC address is read from read_eeprom() into @net_dev->dev_addr. | |
240 | */ | |
241 | ||
242 | static int __devinit sis900_get_mac_addr(struct pci_dev * pci_dev, struct net_device *net_dev) | |
243 | { | |
244 | long ioaddr = pci_resource_start(pci_dev, 0); | |
245 | u16 signature; | |
246 | int i; | |
247 | ||
248 | /* check to see if we have sane EEPROM */ | |
249 | signature = (u16) read_eeprom(ioaddr, EEPROMSignature); | |
250 | if (signature == 0xffff || signature == 0x0000) { | |
251 | printk (KERN_WARNING "%s: Error EERPOM read %x\n", | |
252 | pci_name(pci_dev), signature); | |
253 | return 0; | |
254 | } | |
255 | ||
256 | /* get MAC address from EEPROM */ | |
257 | for (i = 0; i < 3; i++) | |
258 | ((u16 *)(net_dev->dev_addr))[i] = read_eeprom(ioaddr, i+EEPROMMACAddr); | |
259 | ||
260 | return 1; | |
261 | } | |
262 | ||
263 | /** | |
264 | * sis630e_get_mac_addr - Get MAC address for SiS630E model | |
265 | * @pci_dev: the sis900 pci device | |
266 | * @net_dev: the net device to get address for | |
267 | * | |
268 | * SiS630E model, use APC CMOS RAM to store MAC address. | |
269 | * APC CMOS RAM is accessed through ISA bridge. | |
270 | * MAC address is read into @net_dev->dev_addr. | |
271 | */ | |
272 | ||
273 | static int __devinit sis630e_get_mac_addr(struct pci_dev * pci_dev, | |
274 | struct net_device *net_dev) | |
275 | { | |
276 | struct pci_dev *isa_bridge = NULL; | |
277 | u8 reg; | |
278 | int i; | |
279 | ||
280 | isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, 0x0008, isa_bridge); | |
281 | if (!isa_bridge) | |
282 | isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, 0x0018, isa_bridge); | |
283 | if (!isa_bridge) { | |
284 | printk(KERN_WARNING "%s: Can not find ISA bridge\n", | |
285 | pci_name(pci_dev)); | |
286 | return 0; | |
287 | } | |
288 | pci_read_config_byte(isa_bridge, 0x48, ®); | |
289 | pci_write_config_byte(isa_bridge, 0x48, reg | 0x40); | |
290 | ||
291 | for (i = 0; i < 6; i++) { | |
292 | outb(0x09 + i, 0x70); | |
293 | ((u8 *)(net_dev->dev_addr))[i] = inb(0x71); | |
294 | } | |
295 | pci_write_config_byte(isa_bridge, 0x48, reg & ~0x40); | |
296 | pci_dev_put(isa_bridge); | |
297 | ||
298 | return 1; | |
299 | } | |
300 | ||
301 | ||
302 | /** | |
303 | * sis635_get_mac_addr - Get MAC address for SIS635 model | |
304 | * @pci_dev: the sis900 pci device | |
305 | * @net_dev: the net device to get address for | |
306 | * | |
307 | * SiS635 model, set MAC Reload Bit to load Mac address from APC | |
308 | * to rfdr. rfdr is accessed through rfcr. MAC address is read into | |
309 | * @net_dev->dev_addr. | |
310 | */ | |
311 | ||
312 | static int __devinit sis635_get_mac_addr(struct pci_dev * pci_dev, | |
313 | struct net_device *net_dev) | |
314 | { | |
315 | long ioaddr = net_dev->base_addr; | |
316 | u32 rfcrSave; | |
317 | u32 i; | |
318 | ||
319 | rfcrSave = inl(rfcr + ioaddr); | |
320 | ||
321 | outl(rfcrSave | RELOAD, ioaddr + cr); | |
322 | outl(0, ioaddr + cr); | |
323 | ||
324 | /* disable packet filtering before setting filter */ | |
325 | outl(rfcrSave & ~RFEN, rfcr + ioaddr); | |
326 | ||
327 | /* load MAC addr to filter data register */ | |
328 | for (i = 0 ; i < 3 ; i++) { | |
329 | outl((i << RFADDR_shift), ioaddr + rfcr); | |
330 | *( ((u16 *)net_dev->dev_addr) + i) = inw(ioaddr + rfdr); | |
331 | } | |
332 | ||
333 | /* enable packet filtering */ | |
334 | outl(rfcrSave | RFEN, rfcr + ioaddr); | |
335 | ||
336 | return 1; | |
337 | } | |
338 | ||
339 | /** | |
340 | * sis96x_get_mac_addr - Get MAC address for SiS962 or SiS963 model | |
341 | * @pci_dev: the sis900 pci device | |
342 | * @net_dev: the net device to get address for | |
343 | * | |
344 | * SiS962 or SiS963 model, use EEPROM to store MAC address. And EEPROM | |
345 | * is shared by | |
346 | * LAN and 1394. When access EEPROM, send EEREQ signal to hardware first | |
347 | * and wait for EEGNT. If EEGNT is ON, EEPROM is permitted to be access | |
348 | * by LAN, otherwise is not. After MAC address is read from EEPROM, send | |
349 | * EEDONE signal to refuse EEPROM access by LAN. | |
350 | * The EEPROM map of SiS962 or SiS963 is different to SiS900. | |
351 | * The signature field in SiS962 or SiS963 spec is meaningless. | |
352 | * MAC address is read into @net_dev->dev_addr. | |
353 | */ | |
354 | ||
355 | static int __devinit sis96x_get_mac_addr(struct pci_dev * pci_dev, | |
356 | struct net_device *net_dev) | |
357 | { | |
358 | long ioaddr = net_dev->base_addr; | |
359 | long ee_addr = ioaddr + mear; | |
360 | u32 waittime = 0; | |
361 | int i; | |
362 | ||
363 | outl(EEREQ, ee_addr); | |
364 | while(waittime < 2000) { | |
365 | if(inl(ee_addr) & EEGNT) { | |
366 | ||
367 | /* get MAC address from EEPROM */ | |
368 | for (i = 0; i < 3; i++) | |
369 | ((u16 *)(net_dev->dev_addr))[i] = read_eeprom(ioaddr, i+EEPROMMACAddr); | |
370 | ||
371 | outl(EEDONE, ee_addr); | |
372 | return 1; | |
373 | } else { | |
374 | udelay(1); | |
375 | waittime ++; | |
376 | } | |
377 | } | |
378 | outl(EEDONE, ee_addr); | |
379 | return 0; | |
380 | } | |
381 | ||
382 | /** | |
383 | * sis900_probe - Probe for sis900 device | |
384 | * @pci_dev: the sis900 pci device | |
385 | * @pci_id: the pci device ID | |
386 | * | |
387 | * Check and probe sis900 net device for @pci_dev. | |
388 | * Get mac address according to the chip revision, | |
389 | * and assign SiS900-specific entries in the device structure. | |
390 | * ie: sis900_open(), sis900_start_xmit(), sis900_close(), etc. | |
391 | */ | |
392 | ||
393 | static int __devinit sis900_probe(struct pci_dev *pci_dev, | |
394 | const struct pci_device_id *pci_id) | |
395 | { | |
396 | struct sis900_private *sis_priv; | |
397 | struct net_device *net_dev; | |
398 | struct pci_dev *dev; | |
399 | dma_addr_t ring_dma; | |
400 | void *ring_space; | |
401 | long ioaddr; | |
402 | int i, ret; | |
f71e1309 | 403 | const char *card_name = card_names[pci_id->driver_data]; |
1da177e4 LT |
404 | const char *dev_name = pci_name(pci_dev); |
405 | ||
406 | /* when built into the kernel, we only print version if device is found */ | |
407 | #ifndef MODULE | |
408 | static int printed_version; | |
409 | if (!printed_version++) | |
410 | printk(version); | |
411 | #endif | |
412 | ||
413 | /* setup various bits in PCI command register */ | |
414 | ret = pci_enable_device(pci_dev); | |
415 | if(ret) return ret; | |
416 | ||
12b279f9 | 417 | i = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK); |
1da177e4 LT |
418 | if(i){ |
419 | printk(KERN_ERR "sis900.c: architecture does not support" | |
420 | "32bit PCI busmaster DMA\n"); | |
421 | return i; | |
422 | } | |
423 | ||
424 | pci_set_master(pci_dev); | |
425 | ||
426 | net_dev = alloc_etherdev(sizeof(struct sis900_private)); | |
427 | if (!net_dev) | |
428 | return -ENOMEM; | |
429 | SET_MODULE_OWNER(net_dev); | |
430 | SET_NETDEV_DEV(net_dev, &pci_dev->dev); | |
431 | ||
432 | /* We do a request_region() to register /proc/ioports info. */ | |
433 | ioaddr = pci_resource_start(pci_dev, 0); | |
434 | ret = pci_request_regions(pci_dev, "sis900"); | |
435 | if (ret) | |
436 | goto err_out; | |
437 | ||
438 | sis_priv = net_dev->priv; | |
439 | net_dev->base_addr = ioaddr; | |
440 | net_dev->irq = pci_dev->irq; | |
441 | sis_priv->pci_dev = pci_dev; | |
442 | spin_lock_init(&sis_priv->lock); | |
443 | ||
444 | pci_set_drvdata(pci_dev, net_dev); | |
445 | ||
446 | ring_space = pci_alloc_consistent(pci_dev, TX_TOTAL_SIZE, &ring_dma); | |
447 | if (!ring_space) { | |
448 | ret = -ENOMEM; | |
449 | goto err_out_cleardev; | |
450 | } | |
451 | sis_priv->tx_ring = (BufferDesc *)ring_space; | |
452 | sis_priv->tx_ring_dma = ring_dma; | |
453 | ||
454 | ring_space = pci_alloc_consistent(pci_dev, RX_TOTAL_SIZE, &ring_dma); | |
455 | if (!ring_space) { | |
456 | ret = -ENOMEM; | |
457 | goto err_unmap_tx; | |
458 | } | |
459 | sis_priv->rx_ring = (BufferDesc *)ring_space; | |
460 | sis_priv->rx_ring_dma = ring_dma; | |
461 | ||
462 | /* The SiS900-specific entries in the device structure. */ | |
463 | net_dev->open = &sis900_open; | |
464 | net_dev->hard_start_xmit = &sis900_start_xmit; | |
465 | net_dev->stop = &sis900_close; | |
466 | net_dev->get_stats = &sis900_get_stats; | |
467 | net_dev->set_config = &sis900_set_config; | |
468 | net_dev->set_multicast_list = &set_rx_mode; | |
469 | net_dev->do_ioctl = &mii_ioctl; | |
470 | net_dev->tx_timeout = sis900_tx_timeout; | |
471 | net_dev->watchdog_timeo = TX_TIMEOUT; | |
472 | net_dev->ethtool_ops = &sis900_ethtool_ops; | |
473 | ||
474 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
475 | net_dev->poll_controller = &sis900_poll; | |
476 | #endif | |
477 | ||
478 | if (sis900_debug > 0) | |
479 | sis_priv->msg_enable = sis900_debug; | |
480 | else | |
481 | sis_priv->msg_enable = SIS900_DEF_MSG; | |
da369b01 DV |
482 | |
483 | sis_priv->mii_info.dev = net_dev; | |
484 | sis_priv->mii_info.mdio_read = mdio_read; | |
485 | sis_priv->mii_info.mdio_write = mdio_write; | |
486 | sis_priv->mii_info.phy_id_mask = 0x1f; | |
487 | sis_priv->mii_info.reg_num_mask = 0x1f; | |
488 | ||
1da177e4 LT |
489 | /* Get Mac address according to the chip revision */ |
490 | pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &(sis_priv->chipset_rev)); | |
491 | if(netif_msg_probe(sis_priv)) | |
492 | printk(KERN_DEBUG "%s: detected revision %2.2x, " | |
493 | "trying to get MAC address...\n", | |
494 | dev_name, sis_priv->chipset_rev); | |
495 | ||
496 | ret = 0; | |
497 | if (sis_priv->chipset_rev == SIS630E_900_REV) | |
498 | ret = sis630e_get_mac_addr(pci_dev, net_dev); | |
499 | else if ((sis_priv->chipset_rev > 0x81) && (sis_priv->chipset_rev <= 0x90) ) | |
500 | ret = sis635_get_mac_addr(pci_dev, net_dev); | |
501 | else if (sis_priv->chipset_rev == SIS96x_900_REV) | |
502 | ret = sis96x_get_mac_addr(pci_dev, net_dev); | |
503 | else | |
504 | ret = sis900_get_mac_addr(pci_dev, net_dev); | |
505 | ||
506 | if (ret == 0) { | |
507 | printk(KERN_WARNING "%s: Cannot read MAC address.\n", dev_name); | |
508 | ret = -ENODEV; | |
509 | goto err_unmap_rx; | |
510 | } | |
511 | ||
512 | /* 630ET : set the mii access mode as software-mode */ | |
513 | if (sis_priv->chipset_rev == SIS630ET_900_REV) | |
514 | outl(ACCESSMODE | inl(ioaddr + cr), ioaddr + cr); | |
515 | ||
516 | /* probe for mii transceiver */ | |
517 | if (sis900_mii_probe(net_dev) == 0) { | |
518 | printk(KERN_WARNING "%s: Error probing MII device.\n", | |
519 | dev_name); | |
520 | ret = -ENODEV; | |
521 | goto err_unmap_rx; | |
522 | } | |
523 | ||
524 | /* save our host bridge revision */ | |
525 | dev = pci_get_device(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_630, NULL); | |
526 | if (dev) { | |
527 | pci_read_config_byte(dev, PCI_CLASS_REVISION, &sis_priv->host_bridge_rev); | |
528 | pci_dev_put(dev); | |
529 | } | |
530 | ||
531 | ret = register_netdev(net_dev); | |
532 | if (ret) | |
533 | goto err_unmap_rx; | |
534 | ||
535 | /* print some information about our NIC */ | |
536 | printk(KERN_INFO "%s: %s at %#lx, IRQ %d, ", net_dev->name, | |
537 | card_name, ioaddr, net_dev->irq); | |
538 | for (i = 0; i < 5; i++) | |
539 | printk("%2.2x:", (u8)net_dev->dev_addr[i]); | |
540 | printk("%2.2x.\n", net_dev->dev_addr[i]); | |
541 | ||
ea37ccea | 542 | /* Detect Wake on Lan support */ |
7bef4b39 | 543 | ret = (inl(net_dev->base_addr + CFGPMC) & PMESP) >> 27; |
ea37ccea DV |
544 | if (netif_msg_probe(sis_priv) && (ret & PME_D3C) == 0) |
545 | printk(KERN_INFO "%s: Wake on LAN only available from suspend to RAM.", net_dev->name); | |
546 | ||
1da177e4 LT |
547 | return 0; |
548 | ||
549 | err_unmap_rx: | |
550 | pci_free_consistent(pci_dev, RX_TOTAL_SIZE, sis_priv->rx_ring, | |
551 | sis_priv->rx_ring_dma); | |
552 | err_unmap_tx: | |
553 | pci_free_consistent(pci_dev, TX_TOTAL_SIZE, sis_priv->tx_ring, | |
554 | sis_priv->tx_ring_dma); | |
555 | err_out_cleardev: | |
556 | pci_set_drvdata(pci_dev, NULL); | |
557 | pci_release_regions(pci_dev); | |
558 | err_out: | |
559 | free_netdev(net_dev); | |
560 | return ret; | |
561 | } | |
562 | ||
563 | /** | |
564 | * sis900_mii_probe - Probe MII PHY for sis900 | |
565 | * @net_dev: the net device to probe for | |
566 | * | |
567 | * Search for total of 32 possible mii phy addresses. | |
568 | * Identify and set current phy if found one, | |
569 | * return error if it failed to found. | |
570 | */ | |
571 | ||
572 | static int __init sis900_mii_probe(struct net_device * net_dev) | |
573 | { | |
574 | struct sis900_private * sis_priv = net_dev->priv; | |
575 | const char *dev_name = pci_name(sis_priv->pci_dev); | |
576 | u16 poll_bit = MII_STAT_LINK, status = 0; | |
577 | unsigned long timeout = jiffies + 5 * HZ; | |
578 | int phy_addr; | |
579 | ||
580 | sis_priv->mii = NULL; | |
581 | ||
582 | /* search for total of 32 possible mii phy addresses */ | |
583 | for (phy_addr = 0; phy_addr < 32; phy_addr++) { | |
584 | struct mii_phy * mii_phy = NULL; | |
585 | u16 mii_status; | |
586 | int i; | |
587 | ||
588 | mii_phy = NULL; | |
589 | for(i = 0; i < 2; i++) | |
590 | mii_status = mdio_read(net_dev, phy_addr, MII_STATUS); | |
591 | ||
592 | if (mii_status == 0xffff || mii_status == 0x0000) { | |
593 | if (netif_msg_probe(sis_priv)) | |
594 | printk(KERN_DEBUG "%s: MII at address %d" | |
595 | " not accessible\n", | |
596 | dev_name, phy_addr); | |
597 | continue; | |
598 | } | |
599 | ||
600 | if ((mii_phy = kmalloc(sizeof(struct mii_phy), GFP_KERNEL)) == NULL) { | |
601 | printk(KERN_WARNING "Cannot allocate mem for struct mii_phy\n"); | |
602 | mii_phy = sis_priv->first_mii; | |
603 | while (mii_phy) { | |
604 | struct mii_phy *phy; | |
605 | phy = mii_phy; | |
606 | mii_phy = mii_phy->next; | |
607 | kfree(phy); | |
608 | } | |
609 | return 0; | |
610 | } | |
611 | ||
612 | mii_phy->phy_id0 = mdio_read(net_dev, phy_addr, MII_PHY_ID0); | |
613 | mii_phy->phy_id1 = mdio_read(net_dev, phy_addr, MII_PHY_ID1); | |
614 | mii_phy->phy_addr = phy_addr; | |
615 | mii_phy->status = mii_status; | |
616 | mii_phy->next = sis_priv->mii; | |
617 | sis_priv->mii = mii_phy; | |
618 | sis_priv->first_mii = mii_phy; | |
619 | ||
620 | for (i = 0; mii_chip_table[i].phy_id1; i++) | |
621 | if ((mii_phy->phy_id0 == mii_chip_table[i].phy_id0 ) && | |
622 | ((mii_phy->phy_id1 & 0xFFF0) == mii_chip_table[i].phy_id1)){ | |
623 | mii_phy->phy_types = mii_chip_table[i].phy_types; | |
624 | if (mii_chip_table[i].phy_types == MIX) | |
625 | mii_phy->phy_types = | |
626 | (mii_status & (MII_STAT_CAN_TX_FDX | MII_STAT_CAN_TX)) ? LAN : HOME; | |
627 | printk(KERN_INFO "%s: %s transceiver found " | |
628 | "at address %d.\n", | |
629 | dev_name, | |
630 | mii_chip_table[i].name, | |
631 | phy_addr); | |
632 | break; | |
633 | } | |
634 | ||
635 | if( !mii_chip_table[i].phy_id1 ) { | |
636 | printk(KERN_INFO "%s: Unknown PHY transceiver found at address %d.\n", | |
637 | dev_name, phy_addr); | |
638 | mii_phy->phy_types = UNKNOWN; | |
639 | } | |
640 | } | |
641 | ||
642 | if (sis_priv->mii == NULL) { | |
643 | printk(KERN_INFO "%s: No MII transceivers found!\n", dev_name); | |
644 | return 0; | |
645 | } | |
646 | ||
647 | /* select default PHY for mac */ | |
648 | sis_priv->mii = NULL; | |
649 | sis900_default_phy( net_dev ); | |
650 | ||
651 | /* Reset phy if default phy is internal sis900 */ | |
652 | if ((sis_priv->mii->phy_id0 == 0x001D) && | |
653 | ((sis_priv->mii->phy_id1&0xFFF0) == 0x8000)) | |
654 | status = sis900_reset_phy(net_dev, sis_priv->cur_phy); | |
655 | ||
656 | /* workaround for ICS1893 PHY */ | |
657 | if ((sis_priv->mii->phy_id0 == 0x0015) && | |
658 | ((sis_priv->mii->phy_id1&0xFFF0) == 0xF440)) | |
659 | mdio_write(net_dev, sis_priv->cur_phy, 0x0018, 0xD200); | |
660 | ||
661 | if(status & MII_STAT_LINK){ | |
662 | while (poll_bit) { | |
663 | yield(); | |
664 | ||
665 | poll_bit ^= (mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS) & poll_bit); | |
666 | if (time_after_eq(jiffies, timeout)) { | |
667 | printk(KERN_WARNING "%s: reset phy and link down now\n", | |
668 | dev_name); | |
669 | return -ETIME; | |
670 | } | |
671 | } | |
672 | } | |
673 | ||
674 | if (sis_priv->chipset_rev == SIS630E_900_REV) { | |
675 | /* SiS 630E has some bugs on default value of PHY registers */ | |
676 | mdio_write(net_dev, sis_priv->cur_phy, MII_ANADV, 0x05e1); | |
677 | mdio_write(net_dev, sis_priv->cur_phy, MII_CONFIG1, 0x22); | |
678 | mdio_write(net_dev, sis_priv->cur_phy, MII_CONFIG2, 0xff00); | |
679 | mdio_write(net_dev, sis_priv->cur_phy, MII_MASK, 0xffc0); | |
680 | //mdio_write(net_dev, sis_priv->cur_phy, MII_CONTROL, 0x1000); | |
681 | } | |
682 | ||
683 | if (sis_priv->mii->status & MII_STAT_LINK) | |
684 | netif_carrier_on(net_dev); | |
685 | else | |
686 | netif_carrier_off(net_dev); | |
687 | ||
688 | return 1; | |
689 | } | |
690 | ||
691 | /** | |
692 | * sis900_default_phy - Select default PHY for sis900 mac. | |
693 | * @net_dev: the net device to probe for | |
694 | * | |
695 | * Select first detected PHY with link as default. | |
696 | * If no one is link on, select PHY whose types is HOME as default. | |
697 | * If HOME doesn't exist, select LAN. | |
698 | */ | |
699 | ||
700 | static u16 sis900_default_phy(struct net_device * net_dev) | |
701 | { | |
702 | struct sis900_private * sis_priv = net_dev->priv; | |
703 | struct mii_phy *phy = NULL, *phy_home = NULL, | |
704 | *default_phy = NULL, *phy_lan = NULL; | |
705 | u16 status; | |
706 | ||
707 | for (phy=sis_priv->first_mii; phy; phy=phy->next) { | |
708 | status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); | |
709 | status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); | |
710 | ||
711 | /* Link ON & Not select default PHY & not ghost PHY */ | |
712 | if ((status & MII_STAT_LINK) && !default_phy && | |
713 | (phy->phy_types != UNKNOWN)) | |
714 | default_phy = phy; | |
715 | else { | |
716 | status = mdio_read(net_dev, phy->phy_addr, MII_CONTROL); | |
717 | mdio_write(net_dev, phy->phy_addr, MII_CONTROL, | |
718 | status | MII_CNTL_AUTO | MII_CNTL_ISOLATE); | |
719 | if (phy->phy_types == HOME) | |
720 | phy_home = phy; | |
721 | else if(phy->phy_types == LAN) | |
722 | phy_lan = phy; | |
723 | } | |
724 | } | |
725 | ||
726 | if (!default_phy && phy_home) | |
727 | default_phy = phy_home; | |
728 | else if (!default_phy && phy_lan) | |
729 | default_phy = phy_lan; | |
730 | else if (!default_phy) | |
731 | default_phy = sis_priv->first_mii; | |
732 | ||
733 | if (sis_priv->mii != default_phy) { | |
734 | sis_priv->mii = default_phy; | |
735 | sis_priv->cur_phy = default_phy->phy_addr; | |
736 | printk(KERN_INFO "%s: Using transceiver found at address %d as default\n", | |
737 | pci_name(sis_priv->pci_dev), sis_priv->cur_phy); | |
738 | } | |
739 | ||
da369b01 DV |
740 | sis_priv->mii_info.phy_id = sis_priv->cur_phy; |
741 | ||
1da177e4 LT |
742 | status = mdio_read(net_dev, sis_priv->cur_phy, MII_CONTROL); |
743 | status &= (~MII_CNTL_ISOLATE); | |
744 | ||
745 | mdio_write(net_dev, sis_priv->cur_phy, MII_CONTROL, status); | |
746 | status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); | |
747 | status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); | |
748 | ||
749 | return status; | |
750 | } | |
751 | ||
752 | ||
753 | /** | |
754 | * sis900_set_capability - set the media capability of network adapter. | |
755 | * @net_dev : the net device to probe for | |
756 | * @phy : default PHY | |
757 | * | |
758 | * Set the media capability of network adapter according to | |
759 | * mii status register. It's necessary before auto-negotiate. | |
760 | */ | |
761 | ||
762 | static void sis900_set_capability(struct net_device *net_dev, struct mii_phy *phy) | |
763 | { | |
764 | u16 cap; | |
765 | u16 status; | |
766 | ||
767 | status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); | |
768 | status = mdio_read(net_dev, phy->phy_addr, MII_STATUS); | |
769 | ||
770 | cap = MII_NWAY_CSMA_CD | | |
771 | ((phy->status & MII_STAT_CAN_TX_FDX)? MII_NWAY_TX_FDX:0) | | |
772 | ((phy->status & MII_STAT_CAN_TX) ? MII_NWAY_TX:0) | | |
773 | ((phy->status & MII_STAT_CAN_T_FDX) ? MII_NWAY_T_FDX:0)| | |
774 | ((phy->status & MII_STAT_CAN_T) ? MII_NWAY_T:0); | |
775 | ||
776 | mdio_write(net_dev, phy->phy_addr, MII_ANADV, cap); | |
777 | } | |
778 | ||
779 | ||
780 | /* Delay between EEPROM clock transitions. */ | |
781 | #define eeprom_delay() inl(ee_addr) | |
782 | ||
783 | /** | |
784 | * read_eeprom - Read Serial EEPROM | |
785 | * @ioaddr: base i/o address | |
786 | * @location: the EEPROM location to read | |
787 | * | |
788 | * Read Serial EEPROM through EEPROM Access Register. | |
789 | * Note that location is in word (16 bits) unit | |
790 | */ | |
791 | ||
792 | static u16 __devinit read_eeprom(long ioaddr, int location) | |
793 | { | |
794 | int i; | |
795 | u16 retval = 0; | |
796 | long ee_addr = ioaddr + mear; | |
797 | u32 read_cmd = location | EEread; | |
798 | ||
799 | outl(0, ee_addr); | |
800 | eeprom_delay(); | |
801 | outl(EECS, ee_addr); | |
802 | eeprom_delay(); | |
803 | ||
804 | /* Shift the read command (9) bits out. */ | |
805 | for (i = 8; i >= 0; i--) { | |
806 | u32 dataval = (read_cmd & (1 << i)) ? EEDI | EECS : EECS; | |
807 | outl(dataval, ee_addr); | |
808 | eeprom_delay(); | |
809 | outl(dataval | EECLK, ee_addr); | |
810 | eeprom_delay(); | |
811 | } | |
812 | outl(EECS, ee_addr); | |
813 | eeprom_delay(); | |
814 | ||
815 | /* read the 16-bits data in */ | |
816 | for (i = 16; i > 0; i--) { | |
817 | outl(EECS, ee_addr); | |
818 | eeprom_delay(); | |
819 | outl(EECS | EECLK, ee_addr); | |
820 | eeprom_delay(); | |
821 | retval = (retval << 1) | ((inl(ee_addr) & EEDO) ? 1 : 0); | |
822 | eeprom_delay(); | |
823 | } | |
824 | ||
825 | /* Terminate the EEPROM access. */ | |
826 | outl(0, ee_addr); | |
827 | eeprom_delay(); | |
828 | ||
829 | return (retval); | |
830 | } | |
831 | ||
832 | /* Read and write the MII management registers using software-generated | |
833 | serial MDIO protocol. Note that the command bits and data bits are | |
834 | send out separately */ | |
835 | #define mdio_delay() inl(mdio_addr) | |
836 | ||
837 | static void mdio_idle(long mdio_addr) | |
838 | { | |
839 | outl(MDIO | MDDIR, mdio_addr); | |
840 | mdio_delay(); | |
841 | outl(MDIO | MDDIR | MDC, mdio_addr); | |
842 | } | |
843 | ||
844 | /* Syncronize the MII management interface by shifting 32 one bits out. */ | |
845 | static void mdio_reset(long mdio_addr) | |
846 | { | |
847 | int i; | |
848 | ||
849 | for (i = 31; i >= 0; i--) { | |
850 | outl(MDDIR | MDIO, mdio_addr); | |
851 | mdio_delay(); | |
852 | outl(MDDIR | MDIO | MDC, mdio_addr); | |
853 | mdio_delay(); | |
854 | } | |
855 | return; | |
856 | } | |
857 | ||
858 | /** | |
859 | * mdio_read - read MII PHY register | |
860 | * @net_dev: the net device to read | |
861 | * @phy_id: the phy address to read | |
862 | * @location: the phy regiester id to read | |
863 | * | |
864 | * Read MII registers through MDIO and MDC | |
865 | * using MDIO management frame structure and protocol(defined by ISO/IEC). | |
866 | * Please see SiS7014 or ICS spec | |
867 | */ | |
868 | ||
da369b01 | 869 | static int mdio_read(struct net_device *net_dev, int phy_id, int location) |
1da177e4 LT |
870 | { |
871 | long mdio_addr = net_dev->base_addr + mear; | |
872 | int mii_cmd = MIIread|(phy_id<<MIIpmdShift)|(location<<MIIregShift); | |
873 | u16 retval = 0; | |
874 | int i; | |
875 | ||
876 | mdio_reset(mdio_addr); | |
877 | mdio_idle(mdio_addr); | |
878 | ||
879 | for (i = 15; i >= 0; i--) { | |
880 | int dataval = (mii_cmd & (1 << i)) ? MDDIR | MDIO : MDDIR; | |
881 | outl(dataval, mdio_addr); | |
882 | mdio_delay(); | |
883 | outl(dataval | MDC, mdio_addr); | |
884 | mdio_delay(); | |
885 | } | |
886 | ||
887 | /* Read the 16 data bits. */ | |
888 | for (i = 16; i > 0; i--) { | |
889 | outl(0, mdio_addr); | |
890 | mdio_delay(); | |
891 | retval = (retval << 1) | ((inl(mdio_addr) & MDIO) ? 1 : 0); | |
892 | outl(MDC, mdio_addr); | |
893 | mdio_delay(); | |
894 | } | |
895 | outl(0x00, mdio_addr); | |
896 | ||
897 | return retval; | |
898 | } | |
899 | ||
900 | /** | |
901 | * mdio_write - write MII PHY register | |
902 | * @net_dev: the net device to write | |
903 | * @phy_id: the phy address to write | |
904 | * @location: the phy regiester id to write | |
905 | * @value: the register value to write with | |
906 | * | |
907 | * Write MII registers with @value through MDIO and MDC | |
908 | * using MDIO management frame structure and protocol(defined by ISO/IEC) | |
909 | * please see SiS7014 or ICS spec | |
910 | */ | |
911 | ||
912 | static void mdio_write(struct net_device *net_dev, int phy_id, int location, | |
913 | int value) | |
914 | { | |
915 | long mdio_addr = net_dev->base_addr + mear; | |
916 | int mii_cmd = MIIwrite|(phy_id<<MIIpmdShift)|(location<<MIIregShift); | |
917 | int i; | |
918 | ||
919 | mdio_reset(mdio_addr); | |
920 | mdio_idle(mdio_addr); | |
921 | ||
922 | /* Shift the command bits out. */ | |
923 | for (i = 15; i >= 0; i--) { | |
924 | int dataval = (mii_cmd & (1 << i)) ? MDDIR | MDIO : MDDIR; | |
925 | outb(dataval, mdio_addr); | |
926 | mdio_delay(); | |
927 | outb(dataval | MDC, mdio_addr); | |
928 | mdio_delay(); | |
929 | } | |
930 | mdio_delay(); | |
931 | ||
932 | /* Shift the value bits out. */ | |
933 | for (i = 15; i >= 0; i--) { | |
934 | int dataval = (value & (1 << i)) ? MDDIR | MDIO : MDDIR; | |
935 | outl(dataval, mdio_addr); | |
936 | mdio_delay(); | |
937 | outl(dataval | MDC, mdio_addr); | |
938 | mdio_delay(); | |
939 | } | |
940 | mdio_delay(); | |
941 | ||
942 | /* Clear out extra bits. */ | |
943 | for (i = 2; i > 0; i--) { | |
944 | outb(0, mdio_addr); | |
945 | mdio_delay(); | |
946 | outb(MDC, mdio_addr); | |
947 | mdio_delay(); | |
948 | } | |
949 | outl(0x00, mdio_addr); | |
950 | ||
951 | return; | |
952 | } | |
953 | ||
954 | ||
955 | /** | |
956 | * sis900_reset_phy - reset sis900 mii phy. | |
957 | * @net_dev: the net device to write | |
958 | * @phy_addr: default phy address | |
959 | * | |
960 | * Some specific phy can't work properly without reset. | |
961 | * This function will be called during initialization and | |
962 | * link status change from ON to DOWN. | |
963 | */ | |
964 | ||
965 | static u16 sis900_reset_phy(struct net_device *net_dev, int phy_addr) | |
966 | { | |
967 | int i = 0; | |
968 | u16 status; | |
969 | ||
970 | while (i++ < 2) | |
971 | status = mdio_read(net_dev, phy_addr, MII_STATUS); | |
972 | ||
973 | mdio_write( net_dev, phy_addr, MII_CONTROL, MII_CNTL_RESET ); | |
974 | ||
975 | return status; | |
976 | } | |
977 | ||
978 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
979 | /* | |
980 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
981 | * without having to re-enable interrupts. It's not called while | |
982 | * the interrupt routine is executing. | |
983 | */ | |
984 | static void sis900_poll(struct net_device *dev) | |
985 | { | |
986 | disable_irq(dev->irq); | |
987 | sis900_interrupt(dev->irq, dev, NULL); | |
988 | enable_irq(dev->irq); | |
989 | } | |
990 | #endif | |
991 | ||
992 | /** | |
993 | * sis900_open - open sis900 device | |
994 | * @net_dev: the net device to open | |
995 | * | |
996 | * Do some initialization and start net interface. | |
997 | * enable interrupts and set sis900 timer. | |
998 | */ | |
999 | ||
1000 | static int | |
1001 | sis900_open(struct net_device *net_dev) | |
1002 | { | |
1003 | struct sis900_private *sis_priv = net_dev->priv; | |
1004 | long ioaddr = net_dev->base_addr; | |
1005 | int ret; | |
1006 | ||
1007 | /* Soft reset the chip. */ | |
1008 | sis900_reset(net_dev); | |
1009 | ||
1010 | /* Equalizer workaround Rule */ | |
1011 | sis630_set_eq(net_dev, sis_priv->chipset_rev); | |
1012 | ||
1013 | ret = request_irq(net_dev->irq, &sis900_interrupt, SA_SHIRQ, | |
1014 | net_dev->name, net_dev); | |
1015 | if (ret) | |
1016 | return ret; | |
1017 | ||
1018 | sis900_init_rxfilter(net_dev); | |
1019 | ||
1020 | sis900_init_tx_ring(net_dev); | |
1021 | sis900_init_rx_ring(net_dev); | |
1022 | ||
1023 | set_rx_mode(net_dev); | |
1024 | ||
1025 | netif_start_queue(net_dev); | |
1026 | ||
1027 | /* Workaround for EDB */ | |
1028 | sis900_set_mode(ioaddr, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); | |
1029 | ||
1030 | /* Enable all known interrupts by setting the interrupt mask. */ | |
1031 | outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); | |
1032 | outl(RxENA | inl(ioaddr + cr), ioaddr + cr); | |
1033 | outl(IE, ioaddr + ier); | |
1034 | ||
1035 | sis900_check_mode(net_dev, sis_priv->mii); | |
1036 | ||
1037 | /* Set the timer to switch to check for link beat and perhaps switch | |
1038 | to an alternate media type. */ | |
1039 | init_timer(&sis_priv->timer); | |
1040 | sis_priv->timer.expires = jiffies + HZ; | |
1041 | sis_priv->timer.data = (unsigned long)net_dev; | |
1042 | sis_priv->timer.function = &sis900_timer; | |
1043 | add_timer(&sis_priv->timer); | |
1044 | ||
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | /** | |
1049 | * sis900_init_rxfilter - Initialize the Rx filter | |
1050 | * @net_dev: the net device to initialize for | |
1051 | * | |
1052 | * Set receive filter address to our MAC address | |
1053 | * and enable packet filtering. | |
1054 | */ | |
1055 | ||
1056 | static void | |
1057 | sis900_init_rxfilter (struct net_device * net_dev) | |
1058 | { | |
1059 | struct sis900_private *sis_priv = net_dev->priv; | |
1060 | long ioaddr = net_dev->base_addr; | |
1061 | u32 rfcrSave; | |
1062 | u32 i; | |
1063 | ||
1064 | rfcrSave = inl(rfcr + ioaddr); | |
1065 | ||
1066 | /* disable packet filtering before setting filter */ | |
1067 | outl(rfcrSave & ~RFEN, rfcr + ioaddr); | |
1068 | ||
1069 | /* load MAC addr to filter data register */ | |
1070 | for (i = 0 ; i < 3 ; i++) { | |
1071 | u32 w; | |
1072 | ||
1073 | w = (u32) *((u16 *)(net_dev->dev_addr)+i); | |
1074 | outl((i << RFADDR_shift), ioaddr + rfcr); | |
1075 | outl(w, ioaddr + rfdr); | |
1076 | ||
1077 | if (netif_msg_hw(sis_priv)) { | |
1078 | printk(KERN_DEBUG "%s: Receive Filter Addrss[%d]=%x\n", | |
1079 | net_dev->name, i, inl(ioaddr + rfdr)); | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | /* enable packet filtering */ | |
1084 | outl(rfcrSave | RFEN, rfcr + ioaddr); | |
1085 | } | |
1086 | ||
1087 | /** | |
1088 | * sis900_init_tx_ring - Initialize the Tx descriptor ring | |
1089 | * @net_dev: the net device to initialize for | |
1090 | * | |
1091 | * Initialize the Tx descriptor ring, | |
1092 | */ | |
1093 | ||
1094 | static void | |
1095 | sis900_init_tx_ring(struct net_device *net_dev) | |
1096 | { | |
1097 | struct sis900_private *sis_priv = net_dev->priv; | |
1098 | long ioaddr = net_dev->base_addr; | |
1099 | int i; | |
1100 | ||
1101 | sis_priv->tx_full = 0; | |
1102 | sis_priv->dirty_tx = sis_priv->cur_tx = 0; | |
1103 | ||
1104 | for (i = 0; i < NUM_TX_DESC; i++) { | |
1105 | sis_priv->tx_skbuff[i] = NULL; | |
1106 | ||
1107 | sis_priv->tx_ring[i].link = sis_priv->tx_ring_dma + | |
1108 | ((i+1)%NUM_TX_DESC)*sizeof(BufferDesc); | |
1109 | sis_priv->tx_ring[i].cmdsts = 0; | |
1110 | sis_priv->tx_ring[i].bufptr = 0; | |
1111 | } | |
1112 | ||
1113 | /* load Transmit Descriptor Register */ | |
1114 | outl(sis_priv->tx_ring_dma, ioaddr + txdp); | |
1115 | if (netif_msg_hw(sis_priv)) | |
1116 | printk(KERN_DEBUG "%s: TX descriptor register loaded with: %8.8x\n", | |
1117 | net_dev->name, inl(ioaddr + txdp)); | |
1118 | } | |
1119 | ||
1120 | /** | |
1121 | * sis900_init_rx_ring - Initialize the Rx descriptor ring | |
1122 | * @net_dev: the net device to initialize for | |
1123 | * | |
1124 | * Initialize the Rx descriptor ring, | |
1125 | * and pre-allocate recevie buffers (socket buffer) | |
1126 | */ | |
1127 | ||
1128 | static void | |
1129 | sis900_init_rx_ring(struct net_device *net_dev) | |
1130 | { | |
1131 | struct sis900_private *sis_priv = net_dev->priv; | |
1132 | long ioaddr = net_dev->base_addr; | |
1133 | int i; | |
1134 | ||
1135 | sis_priv->cur_rx = 0; | |
1136 | sis_priv->dirty_rx = 0; | |
1137 | ||
1138 | /* init RX descriptor */ | |
1139 | for (i = 0; i < NUM_RX_DESC; i++) { | |
1140 | sis_priv->rx_skbuff[i] = NULL; | |
1141 | ||
1142 | sis_priv->rx_ring[i].link = sis_priv->rx_ring_dma + | |
1143 | ((i+1)%NUM_RX_DESC)*sizeof(BufferDesc); | |
1144 | sis_priv->rx_ring[i].cmdsts = 0; | |
1145 | sis_priv->rx_ring[i].bufptr = 0; | |
1146 | } | |
1147 | ||
1148 | /* allocate sock buffers */ | |
1149 | for (i = 0; i < NUM_RX_DESC; i++) { | |
1150 | struct sk_buff *skb; | |
1151 | ||
1152 | if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) { | |
1153 | /* not enough memory for skbuff, this makes a "hole" | |
1154 | on the buffer ring, it is not clear how the | |
1155 | hardware will react to this kind of degenerated | |
1156 | buffer */ | |
1157 | break; | |
1158 | } | |
1159 | skb->dev = net_dev; | |
1160 | sis_priv->rx_skbuff[i] = skb; | |
1161 | sis_priv->rx_ring[i].cmdsts = RX_BUF_SIZE; | |
1162 | sis_priv->rx_ring[i].bufptr = pci_map_single(sis_priv->pci_dev, | |
689be439 | 1163 | skb->data, RX_BUF_SIZE, PCI_DMA_FROMDEVICE); |
1da177e4 LT |
1164 | } |
1165 | sis_priv->dirty_rx = (unsigned int) (i - NUM_RX_DESC); | |
1166 | ||
1167 | /* load Receive Descriptor Register */ | |
1168 | outl(sis_priv->rx_ring_dma, ioaddr + rxdp); | |
1169 | if (netif_msg_hw(sis_priv)) | |
1170 | printk(KERN_DEBUG "%s: RX descriptor register loaded with: %8.8x\n", | |
1171 | net_dev->name, inl(ioaddr + rxdp)); | |
1172 | } | |
1173 | ||
1174 | /** | |
1175 | * sis630_set_eq - set phy equalizer value for 630 LAN | |
1176 | * @net_dev: the net device to set equalizer value | |
1177 | * @revision: 630 LAN revision number | |
1178 | * | |
1179 | * 630E equalizer workaround rule(Cyrus Huang 08/15) | |
1180 | * PHY register 14h(Test) | |
1181 | * Bit 14: 0 -- Automatically dectect (default) | |
1182 | * 1 -- Manually set Equalizer filter | |
1183 | * Bit 13: 0 -- (Default) | |
1184 | * 1 -- Speed up convergence of equalizer setting | |
1185 | * Bit 9 : 0 -- (Default) | |
1186 | * 1 -- Disable Baseline Wander | |
1187 | * Bit 3~7 -- Equalizer filter setting | |
1188 | * Link ON: Set Bit 9, 13 to 1, Bit 14 to 0 | |
1189 | * Then calculate equalizer value | |
1190 | * Then set equalizer value, and set Bit 14 to 1, Bit 9 to 0 | |
1191 | * Link Off:Set Bit 13 to 1, Bit 14 to 0 | |
1192 | * Calculate Equalizer value: | |
1193 | * When Link is ON and Bit 14 is 0, SIS900PHY will auto-dectect proper equalizer value. | |
1194 | * When the equalizer is stable, this value is not a fixed value. It will be within | |
1195 | * a small range(eg. 7~9). Then we get a minimum and a maximum value(eg. min=7, max=9) | |
1196 | * 0 <= max <= 4 --> set equalizer to max | |
1197 | * 5 <= max <= 14 --> set equalizer to max+1 or set equalizer to max+2 if max == min | |
1198 | * max >= 15 --> set equalizer to max+5 or set equalizer to max+6 if max == min | |
1199 | */ | |
1200 | ||
1201 | static void sis630_set_eq(struct net_device *net_dev, u8 revision) | |
1202 | { | |
1203 | struct sis900_private *sis_priv = net_dev->priv; | |
1204 | u16 reg14h, eq_value=0, max_value=0, min_value=0; | |
1205 | int i, maxcount=10; | |
1206 | ||
1207 | if ( !(revision == SIS630E_900_REV || revision == SIS630EA1_900_REV || | |
1208 | revision == SIS630A_900_REV || revision == SIS630ET_900_REV) ) | |
1209 | return; | |
1210 | ||
1211 | if (netif_carrier_ok(net_dev)) { | |
1212 | reg14h = mdio_read(net_dev, sis_priv->cur_phy, MII_RESV); | |
1213 | mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, | |
1214 | (0x2200 | reg14h) & 0xBFFF); | |
1215 | for (i=0; i < maxcount; i++) { | |
1216 | eq_value = (0x00F8 & mdio_read(net_dev, | |
1217 | sis_priv->cur_phy, MII_RESV)) >> 3; | |
1218 | if (i == 0) | |
1219 | max_value=min_value=eq_value; | |
1220 | max_value = (eq_value > max_value) ? | |
1221 | eq_value : max_value; | |
1222 | min_value = (eq_value < min_value) ? | |
1223 | eq_value : min_value; | |
1224 | } | |
1225 | /* 630E rule to determine the equalizer value */ | |
1226 | if (revision == SIS630E_900_REV || revision == SIS630EA1_900_REV || | |
1227 | revision == SIS630ET_900_REV) { | |
1228 | if (max_value < 5) | |
1229 | eq_value = max_value; | |
1230 | else if (max_value >= 5 && max_value < 15) | |
1231 | eq_value = (max_value == min_value) ? | |
1232 | max_value+2 : max_value+1; | |
1233 | else if (max_value >= 15) | |
1234 | eq_value=(max_value == min_value) ? | |
1235 | max_value+6 : max_value+5; | |
1236 | } | |
1237 | /* 630B0&B1 rule to determine the equalizer value */ | |
1238 | if (revision == SIS630A_900_REV && | |
1239 | (sis_priv->host_bridge_rev == SIS630B0 || | |
1240 | sis_priv->host_bridge_rev == SIS630B1)) { | |
1241 | if (max_value == 0) | |
1242 | eq_value = 3; | |
1243 | else | |
1244 | eq_value = (max_value + min_value + 1)/2; | |
1245 | } | |
1246 | /* write equalizer value and setting */ | |
1247 | reg14h = mdio_read(net_dev, sis_priv->cur_phy, MII_RESV); | |
1248 | reg14h = (reg14h & 0xFF07) | ((eq_value << 3) & 0x00F8); | |
1249 | reg14h = (reg14h | 0x6000) & 0xFDFF; | |
1250 | mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, reg14h); | |
1251 | } else { | |
1252 | reg14h = mdio_read(net_dev, sis_priv->cur_phy, MII_RESV); | |
1253 | if (revision == SIS630A_900_REV && | |
1254 | (sis_priv->host_bridge_rev == SIS630B0 || | |
1255 | sis_priv->host_bridge_rev == SIS630B1)) | |
1256 | mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, | |
1257 | (reg14h | 0x2200) & 0xBFFF); | |
1258 | else | |
1259 | mdio_write(net_dev, sis_priv->cur_phy, MII_RESV, | |
1260 | (reg14h | 0x2000) & 0xBFFF); | |
1261 | } | |
1262 | return; | |
1263 | } | |
1264 | ||
1265 | /** | |
1266 | * sis900_timer - sis900 timer routine | |
1267 | * @data: pointer to sis900 net device | |
1268 | * | |
1269 | * On each timer ticks we check two things, | |
1270 | * link status (ON/OFF) and link mode (10/100/Full/Half) | |
1271 | */ | |
1272 | ||
1273 | static void sis900_timer(unsigned long data) | |
1274 | { | |
1275 | struct net_device *net_dev = (struct net_device *)data; | |
1276 | struct sis900_private *sis_priv = net_dev->priv; | |
1277 | struct mii_phy *mii_phy = sis_priv->mii; | |
f71e1309 | 1278 | static const int next_tick = 5*HZ; |
1da177e4 LT |
1279 | u16 status; |
1280 | ||
1281 | if (!sis_priv->autong_complete){ | |
1282 | int speed, duplex = 0; | |
1283 | ||
1284 | sis900_read_mode(net_dev, &speed, &duplex); | |
1285 | if (duplex){ | |
1286 | sis900_set_mode(net_dev->base_addr, speed, duplex); | |
1287 | sis630_set_eq(net_dev, sis_priv->chipset_rev); | |
1288 | netif_start_queue(net_dev); | |
1289 | } | |
1290 | ||
1291 | sis_priv->timer.expires = jiffies + HZ; | |
1292 | add_timer(&sis_priv->timer); | |
1293 | return; | |
1294 | } | |
1295 | ||
1296 | status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); | |
1297 | status = mdio_read(net_dev, sis_priv->cur_phy, MII_STATUS); | |
1298 | ||
1299 | /* Link OFF -> ON */ | |
1300 | if (!netif_carrier_ok(net_dev)) { | |
1301 | LookForLink: | |
1302 | /* Search for new PHY */ | |
1303 | status = sis900_default_phy(net_dev); | |
1304 | mii_phy = sis_priv->mii; | |
1305 | ||
1306 | if (status & MII_STAT_LINK){ | |
1307 | sis900_check_mode(net_dev, mii_phy); | |
1308 | netif_carrier_on(net_dev); | |
1309 | } | |
1310 | } else { | |
1311 | /* Link ON -> OFF */ | |
1312 | if (!(status & MII_STAT_LINK)){ | |
1313 | netif_carrier_off(net_dev); | |
1314 | if(netif_msg_link(sis_priv)) | |
1315 | printk(KERN_INFO "%s: Media Link Off\n", net_dev->name); | |
1316 | ||
1317 | /* Change mode issue */ | |
1318 | if ((mii_phy->phy_id0 == 0x001D) && | |
1319 | ((mii_phy->phy_id1 & 0xFFF0) == 0x8000)) | |
1320 | sis900_reset_phy(net_dev, sis_priv->cur_phy); | |
1321 | ||
1322 | sis630_set_eq(net_dev, sis_priv->chipset_rev); | |
1323 | ||
1324 | goto LookForLink; | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | sis_priv->timer.expires = jiffies + next_tick; | |
1329 | add_timer(&sis_priv->timer); | |
1330 | } | |
1331 | ||
1332 | /** | |
1333 | * sis900_check_mode - check the media mode for sis900 | |
1334 | * @net_dev: the net device to be checked | |
1335 | * @mii_phy: the mii phy | |
1336 | * | |
1337 | * Older driver gets the media mode from mii status output | |
1338 | * register. Now we set our media capability and auto-negotiate | |
1339 | * to get the upper bound of speed and duplex between two ends. | |
1340 | * If the types of mii phy is HOME, it doesn't need to auto-negotiate | |
1341 | * and autong_complete should be set to 1. | |
1342 | */ | |
1343 | ||
1344 | static void sis900_check_mode(struct net_device *net_dev, struct mii_phy *mii_phy) | |
1345 | { | |
1346 | struct sis900_private *sis_priv = net_dev->priv; | |
1347 | long ioaddr = net_dev->base_addr; | |
1348 | int speed, duplex; | |
1349 | ||
1350 | if (mii_phy->phy_types == LAN) { | |
1351 | outl(~EXD & inl(ioaddr + cfg), ioaddr + cfg); | |
1352 | sis900_set_capability(net_dev , mii_phy); | |
1353 | sis900_auto_negotiate(net_dev, sis_priv->cur_phy); | |
1354 | } else { | |
1355 | outl(EXD | inl(ioaddr + cfg), ioaddr + cfg); | |
1356 | speed = HW_SPEED_HOME; | |
1357 | duplex = FDX_CAPABLE_HALF_SELECTED; | |
1358 | sis900_set_mode(ioaddr, speed, duplex); | |
1359 | sis_priv->autong_complete = 1; | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | /** | |
1364 | * sis900_set_mode - Set the media mode of mac register. | |
1365 | * @ioaddr: the address of the device | |
1366 | * @speed : the transmit speed to be determined | |
1367 | * @duplex: the duplex mode to be determined | |
1368 | * | |
1369 | * Set the media mode of mac register txcfg/rxcfg according to | |
1370 | * speed and duplex of phy. Bit EDB_MASTER_EN indicates the EDB | |
1371 | * bus is used instead of PCI bus. When this bit is set 1, the | |
1372 | * Max DMA Burst Size for TX/RX DMA should be no larger than 16 | |
1373 | * double words. | |
1374 | */ | |
1375 | ||
1376 | static void sis900_set_mode (long ioaddr, int speed, int duplex) | |
1377 | { | |
1378 | u32 tx_flags = 0, rx_flags = 0; | |
1379 | ||
1380 | if (inl(ioaddr + cfg) & EDB_MASTER_EN) { | |
1381 | tx_flags = TxATP | (DMA_BURST_64 << TxMXDMA_shift) | | |
1382 | (TX_FILL_THRESH << TxFILLT_shift); | |
1383 | rx_flags = DMA_BURST_64 << RxMXDMA_shift; | |
1384 | } else { | |
1385 | tx_flags = TxATP | (DMA_BURST_512 << TxMXDMA_shift) | | |
1386 | (TX_FILL_THRESH << TxFILLT_shift); | |
1387 | rx_flags = DMA_BURST_512 << RxMXDMA_shift; | |
1388 | } | |
1389 | ||
1390 | if (speed == HW_SPEED_HOME || speed == HW_SPEED_10_MBPS) { | |
1391 | rx_flags |= (RxDRNT_10 << RxDRNT_shift); | |
1392 | tx_flags |= (TxDRNT_10 << TxDRNT_shift); | |
1393 | } else { | |
1394 | rx_flags |= (RxDRNT_100 << RxDRNT_shift); | |
1395 | tx_flags |= (TxDRNT_100 << TxDRNT_shift); | |
1396 | } | |
1397 | ||
1398 | if (duplex == FDX_CAPABLE_FULL_SELECTED) { | |
1399 | tx_flags |= (TxCSI | TxHBI); | |
1400 | rx_flags |= RxATX; | |
1401 | } | |
1402 | ||
1403 | outl (tx_flags, ioaddr + txcfg); | |
1404 | outl (rx_flags, ioaddr + rxcfg); | |
1405 | } | |
1406 | ||
1407 | /** | |
1408 | * sis900_auto_negotiate - Set the Auto-Negotiation Enable/Reset bit. | |
1409 | * @net_dev: the net device to read mode for | |
1410 | * @phy_addr: mii phy address | |
1411 | * | |
1412 | * If the adapter is link-on, set the auto-negotiate enable/reset bit. | |
1413 | * autong_complete should be set to 0 when starting auto-negotiation. | |
1414 | * autong_complete should be set to 1 if we didn't start auto-negotiation. | |
1415 | * sis900_timer will wait for link on again if autong_complete = 0. | |
1416 | */ | |
1417 | ||
1418 | static void sis900_auto_negotiate(struct net_device *net_dev, int phy_addr) | |
1419 | { | |
1420 | struct sis900_private *sis_priv = net_dev->priv; | |
1421 | int i = 0; | |
1422 | u32 status; | |
1423 | ||
1424 | while (i++ < 2) | |
1425 | status = mdio_read(net_dev, phy_addr, MII_STATUS); | |
1426 | ||
1427 | if (!(status & MII_STAT_LINK)){ | |
1428 | if(netif_msg_link(sis_priv)) | |
1429 | printk(KERN_INFO "%s: Media Link Off\n", net_dev->name); | |
1430 | sis_priv->autong_complete = 1; | |
1431 | netif_carrier_off(net_dev); | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | /* (Re)start AutoNegotiate */ | |
1436 | mdio_write(net_dev, phy_addr, MII_CONTROL, | |
1437 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO); | |
1438 | sis_priv->autong_complete = 0; | |
1439 | } | |
1440 | ||
1441 | ||
1442 | /** | |
1443 | * sis900_read_mode - read media mode for sis900 internal phy | |
1444 | * @net_dev: the net device to read mode for | |
1445 | * @speed : the transmit speed to be determined | |
1446 | * @duplex : the duplex mode to be determined | |
1447 | * | |
1448 | * The capability of remote end will be put in mii register autorec | |
1449 | * after auto-negotiation. Use AND operation to get the upper bound | |
1450 | * of speed and duplex between two ends. | |
1451 | */ | |
1452 | ||
1453 | static void sis900_read_mode(struct net_device *net_dev, int *speed, int *duplex) | |
1454 | { | |
1455 | struct sis900_private *sis_priv = net_dev->priv; | |
1456 | struct mii_phy *phy = sis_priv->mii; | |
1457 | int phy_addr = sis_priv->cur_phy; | |
1458 | u32 status; | |
1459 | u16 autoadv, autorec; | |
1460 | int i = 0; | |
1461 | ||
1462 | while (i++ < 2) | |
1463 | status = mdio_read(net_dev, phy_addr, MII_STATUS); | |
1464 | ||
1465 | if (!(status & MII_STAT_LINK)) | |
1466 | return; | |
1467 | ||
1468 | /* AutoNegotiate completed */ | |
1469 | autoadv = mdio_read(net_dev, phy_addr, MII_ANADV); | |
1470 | autorec = mdio_read(net_dev, phy_addr, MII_ANLPAR); | |
1471 | status = autoadv & autorec; | |
1472 | ||
1473 | *speed = HW_SPEED_10_MBPS; | |
1474 | *duplex = FDX_CAPABLE_HALF_SELECTED; | |
1475 | ||
1476 | if (status & (MII_NWAY_TX | MII_NWAY_TX_FDX)) | |
1477 | *speed = HW_SPEED_100_MBPS; | |
1478 | if (status & ( MII_NWAY_TX_FDX | MII_NWAY_T_FDX)) | |
1479 | *duplex = FDX_CAPABLE_FULL_SELECTED; | |
1480 | ||
1481 | sis_priv->autong_complete = 1; | |
1482 | ||
1483 | /* Workaround for Realtek RTL8201 PHY issue */ | |
1484 | if ((phy->phy_id0 == 0x0000) && ((phy->phy_id1 & 0xFFF0) == 0x8200)) { | |
1485 | if (mdio_read(net_dev, phy_addr, MII_CONTROL) & MII_CNTL_FDX) | |
1486 | *duplex = FDX_CAPABLE_FULL_SELECTED; | |
1487 | if (mdio_read(net_dev, phy_addr, 0x0019) & 0x01) | |
1488 | *speed = HW_SPEED_100_MBPS; | |
1489 | } | |
1490 | ||
1491 | if(netif_msg_link(sis_priv)) | |
1492 | printk(KERN_INFO "%s: Media Link On %s %s-duplex \n", | |
1493 | net_dev->name, | |
1494 | *speed == HW_SPEED_100_MBPS ? | |
1495 | "100mbps" : "10mbps", | |
1496 | *duplex == FDX_CAPABLE_FULL_SELECTED ? | |
1497 | "full" : "half"); | |
1498 | } | |
1499 | ||
1500 | /** | |
1501 | * sis900_tx_timeout - sis900 transmit timeout routine | |
1502 | * @net_dev: the net device to transmit | |
1503 | * | |
1504 | * print transmit timeout status | |
1505 | * disable interrupts and do some tasks | |
1506 | */ | |
1507 | ||
1508 | static void sis900_tx_timeout(struct net_device *net_dev) | |
1509 | { | |
1510 | struct sis900_private *sis_priv = net_dev->priv; | |
1511 | long ioaddr = net_dev->base_addr; | |
1512 | unsigned long flags; | |
1513 | int i; | |
1514 | ||
1515 | if(netif_msg_tx_err(sis_priv)) | |
1516 | printk(KERN_INFO "%s: Transmit timeout, status %8.8x %8.8x \n", | |
1517 | net_dev->name, inl(ioaddr + cr), inl(ioaddr + isr)); | |
1518 | ||
1519 | /* Disable interrupts by clearing the interrupt mask. */ | |
1520 | outl(0x0000, ioaddr + imr); | |
1521 | ||
1522 | /* use spinlock to prevent interrupt handler accessing buffer ring */ | |
1523 | spin_lock_irqsave(&sis_priv->lock, flags); | |
1524 | ||
1525 | /* discard unsent packets */ | |
1526 | sis_priv->dirty_tx = sis_priv->cur_tx = 0; | |
1527 | for (i = 0; i < NUM_TX_DESC; i++) { | |
1528 | struct sk_buff *skb = sis_priv->tx_skbuff[i]; | |
1529 | ||
1530 | if (skb) { | |
1531 | pci_unmap_single(sis_priv->pci_dev, | |
1532 | sis_priv->tx_ring[i].bufptr, skb->len, | |
1533 | PCI_DMA_TODEVICE); | |
1534 | dev_kfree_skb_irq(skb); | |
1535 | sis_priv->tx_skbuff[i] = NULL; | |
1536 | sis_priv->tx_ring[i].cmdsts = 0; | |
1537 | sis_priv->tx_ring[i].bufptr = 0; | |
1538 | sis_priv->stats.tx_dropped++; | |
1539 | } | |
1540 | } | |
1541 | sis_priv->tx_full = 0; | |
1542 | netif_wake_queue(net_dev); | |
1543 | ||
1544 | spin_unlock_irqrestore(&sis_priv->lock, flags); | |
1545 | ||
1546 | net_dev->trans_start = jiffies; | |
1547 | ||
1548 | /* load Transmit Descriptor Register */ | |
1549 | outl(sis_priv->tx_ring_dma, ioaddr + txdp); | |
1550 | ||
1551 | /* Enable all known interrupts by setting the interrupt mask. */ | |
1552 | outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); | |
1553 | return; | |
1554 | } | |
1555 | ||
1556 | /** | |
1557 | * sis900_start_xmit - sis900 start transmit routine | |
1558 | * @skb: socket buffer pointer to put the data being transmitted | |
1559 | * @net_dev: the net device to transmit with | |
1560 | * | |
1561 | * Set the transmit buffer descriptor, | |
1562 | * and write TxENA to enable transmit state machine. | |
1563 | * tell upper layer if the buffer is full | |
1564 | */ | |
1565 | ||
1566 | static int | |
1567 | sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev) | |
1568 | { | |
1569 | struct sis900_private *sis_priv = net_dev->priv; | |
1570 | long ioaddr = net_dev->base_addr; | |
1571 | unsigned int entry; | |
1572 | unsigned long flags; | |
1573 | unsigned int index_cur_tx, index_dirty_tx; | |
1574 | unsigned int count_dirty_tx; | |
1575 | ||
1576 | /* Don't transmit data before the complete of auto-negotiation */ | |
1577 | if(!sis_priv->autong_complete){ | |
1578 | netif_stop_queue(net_dev); | |
1579 | return 1; | |
1580 | } | |
1581 | ||
1582 | spin_lock_irqsave(&sis_priv->lock, flags); | |
1583 | ||
1584 | /* Calculate the next Tx descriptor entry. */ | |
1585 | entry = sis_priv->cur_tx % NUM_TX_DESC; | |
1586 | sis_priv->tx_skbuff[entry] = skb; | |
1587 | ||
1588 | /* set the transmit buffer descriptor and enable Transmit State Machine */ | |
1589 | sis_priv->tx_ring[entry].bufptr = pci_map_single(sis_priv->pci_dev, | |
1590 | skb->data, skb->len, PCI_DMA_TODEVICE); | |
1591 | sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len); | |
1592 | outl(TxENA | inl(ioaddr + cr), ioaddr + cr); | |
1593 | ||
1594 | sis_priv->cur_tx ++; | |
1595 | index_cur_tx = sis_priv->cur_tx; | |
1596 | index_dirty_tx = sis_priv->dirty_tx; | |
1597 | ||
1598 | for (count_dirty_tx = 0; index_cur_tx != index_dirty_tx; index_dirty_tx++) | |
1599 | count_dirty_tx ++; | |
1600 | ||
1601 | if (index_cur_tx == index_dirty_tx) { | |
1602 | /* dirty_tx is met in the cycle of cur_tx, buffer full */ | |
1603 | sis_priv->tx_full = 1; | |
1604 | netif_stop_queue(net_dev); | |
1605 | } else if (count_dirty_tx < NUM_TX_DESC) { | |
1606 | /* Typical path, tell upper layer that more transmission is possible */ | |
1607 | netif_start_queue(net_dev); | |
1608 | } else { | |
1609 | /* buffer full, tell upper layer no more transmission */ | |
1610 | sis_priv->tx_full = 1; | |
1611 | netif_stop_queue(net_dev); | |
1612 | } | |
1613 | ||
1614 | spin_unlock_irqrestore(&sis_priv->lock, flags); | |
1615 | ||
1616 | net_dev->trans_start = jiffies; | |
1617 | ||
1618 | if (netif_msg_tx_queued(sis_priv)) | |
1619 | printk(KERN_DEBUG "%s: Queued Tx packet at %p size %d " | |
1620 | "to slot %d.\n", | |
1621 | net_dev->name, skb->data, (int)skb->len, entry); | |
1622 | ||
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | /** | |
1627 | * sis900_interrupt - sis900 interrupt handler | |
1628 | * @irq: the irq number | |
1629 | * @dev_instance: the client data object | |
1630 | * @regs: snapshot of processor context | |
1631 | * | |
1632 | * The interrupt handler does all of the Rx thread work, | |
1633 | * and cleans up after the Tx thread | |
1634 | */ | |
1635 | ||
1636 | static irqreturn_t sis900_interrupt(int irq, void *dev_instance, struct pt_regs *regs) | |
1637 | { | |
1638 | struct net_device *net_dev = dev_instance; | |
1639 | struct sis900_private *sis_priv = net_dev->priv; | |
1640 | int boguscnt = max_interrupt_work; | |
1641 | long ioaddr = net_dev->base_addr; | |
1642 | u32 status; | |
1643 | unsigned int handled = 0; | |
1644 | ||
1645 | spin_lock (&sis_priv->lock); | |
1646 | ||
1647 | do { | |
1648 | status = inl(ioaddr + isr); | |
1649 | ||
1650 | if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0) | |
1651 | /* nothing intresting happened */ | |
1652 | break; | |
1653 | handled = 1; | |
1654 | ||
1655 | /* why dow't we break after Tx/Rx case ?? keyword: full-duplex */ | |
1656 | if (status & (RxORN | RxERR | RxOK)) | |
1657 | /* Rx interrupt */ | |
1658 | sis900_rx(net_dev); | |
1659 | ||
1660 | if (status & (TxURN | TxERR | TxIDLE)) | |
1661 | /* Tx interrupt */ | |
1662 | sis900_finish_xmit(net_dev); | |
1663 | ||
1664 | /* something strange happened !!! */ | |
1665 | if (status & HIBERR) { | |
1666 | if(netif_msg_intr(sis_priv)) | |
1667 | printk(KERN_INFO "%s: Abnormal interrupt," | |
1668 | "status %#8.8x.\n", net_dev->name, status); | |
1669 | break; | |
1670 | } | |
1671 | if (--boguscnt < 0) { | |
1672 | if(netif_msg_intr(sis_priv)) | |
1673 | printk(KERN_INFO "%s: Too much work at interrupt, " | |
1674 | "interrupt status = %#8.8x.\n", | |
1675 | net_dev->name, status); | |
1676 | break; | |
1677 | } | |
1678 | } while (1); | |
1679 | ||
1680 | if(netif_msg_intr(sis_priv)) | |
1681 | printk(KERN_DEBUG "%s: exiting interrupt, " | |
1682 | "interrupt status = 0x%#8.8x.\n", | |
1683 | net_dev->name, inl(ioaddr + isr)); | |
1684 | ||
1685 | spin_unlock (&sis_priv->lock); | |
1686 | return IRQ_RETVAL(handled); | |
1687 | } | |
1688 | ||
1689 | /** | |
1690 | * sis900_rx - sis900 receive routine | |
1691 | * @net_dev: the net device which receives data | |
1692 | * | |
1693 | * Process receive interrupt events, | |
1694 | * put buffer to higher layer and refill buffer pool | |
1695 | * Note: This fucntion is called by interrupt handler, | |
1696 | * don't do "too much" work here | |
1697 | */ | |
1698 | ||
1699 | static int sis900_rx(struct net_device *net_dev) | |
1700 | { | |
1701 | struct sis900_private *sis_priv = net_dev->priv; | |
1702 | long ioaddr = net_dev->base_addr; | |
1703 | unsigned int entry = sis_priv->cur_rx % NUM_RX_DESC; | |
1704 | u32 rx_status = sis_priv->rx_ring[entry].cmdsts; | |
7380a78a | 1705 | int rx_work_limit; |
1da177e4 LT |
1706 | |
1707 | if (netif_msg_rx_status(sis_priv)) | |
1708 | printk(KERN_DEBUG "sis900_rx, cur_rx:%4.4d, dirty_rx:%4.4d " | |
1709 | "status:0x%8.8x\n", | |
1710 | sis_priv->cur_rx, sis_priv->dirty_rx, rx_status); | |
7380a78a | 1711 | rx_work_limit = sis_priv->dirty_rx + NUM_RX_DESC - sis_priv->cur_rx; |
1da177e4 LT |
1712 | |
1713 | while (rx_status & OWN) { | |
1714 | unsigned int rx_size; | |
1715 | ||
7380a78a VA |
1716 | if (--rx_work_limit < 0) |
1717 | break; | |
1718 | ||
1da177e4 LT |
1719 | rx_size = (rx_status & DSIZE) - CRC_SIZE; |
1720 | ||
1721 | if (rx_status & (ABORT|OVERRUN|TOOLONG|RUNT|RXISERR|CRCERR|FAERR)) { | |
1722 | /* corrupted packet received */ | |
1723 | if (netif_msg_rx_err(sis_priv)) | |
1724 | printk(KERN_DEBUG "%s: Corrupted packet " | |
1725 | "received, buffer status = 0x%8.8x.\n", | |
1726 | net_dev->name, rx_status); | |
1727 | sis_priv->stats.rx_errors++; | |
1728 | if (rx_status & OVERRUN) | |
1729 | sis_priv->stats.rx_over_errors++; | |
1730 | if (rx_status & (TOOLONG|RUNT)) | |
1731 | sis_priv->stats.rx_length_errors++; | |
1732 | if (rx_status & (RXISERR | FAERR)) | |
1733 | sis_priv->stats.rx_frame_errors++; | |
1734 | if (rx_status & CRCERR) | |
1735 | sis_priv->stats.rx_crc_errors++; | |
1736 | /* reset buffer descriptor state */ | |
1737 | sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE; | |
1738 | } else { | |
1739 | struct sk_buff * skb; | |
1740 | ||
1741 | /* This situation should never happen, but due to | |
1742 | some unknow bugs, it is possible that | |
1743 | we are working on NULL sk_buff :-( */ | |
1744 | if (sis_priv->rx_skbuff[entry] == NULL) { | |
1745 | if (netif_msg_rx_err(sis_priv)) | |
7380a78a VA |
1746 | printk(KERN_WARNING "%s: NULL pointer " |
1747 | "encountered in Rx ring\n" | |
1748 | "cur_rx:%4.4d, dirty_rx:%4.4d\n", | |
1749 | net_dev->name, sis_priv->cur_rx, | |
1750 | sis_priv->dirty_rx); | |
1da177e4 LT |
1751 | break; |
1752 | } | |
1753 | ||
1754 | pci_unmap_single(sis_priv->pci_dev, | |
1755 | sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE, | |
1756 | PCI_DMA_FROMDEVICE); | |
1757 | /* give the socket buffer to upper layers */ | |
1758 | skb = sis_priv->rx_skbuff[entry]; | |
1759 | skb_put(skb, rx_size); | |
1760 | skb->protocol = eth_type_trans(skb, net_dev); | |
1761 | netif_rx(skb); | |
1762 | ||
1763 | /* some network statistics */ | |
1764 | if ((rx_status & BCAST) == MCAST) | |
1765 | sis_priv->stats.multicast++; | |
1766 | net_dev->last_rx = jiffies; | |
1767 | sis_priv->stats.rx_bytes += rx_size; | |
1768 | sis_priv->stats.rx_packets++; | |
1769 | ||
1770 | /* refill the Rx buffer, what if there is not enought | |
1771 | * memory for new socket buffer ?? */ | |
1772 | if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) { | |
1773 | /* not enough memory for skbuff, this makes a | |
1774 | * "hole" on the buffer ring, it is not clear | |
1775 | * how the hardware will react to this kind | |
1776 | * of degenerated buffer */ | |
1777 | if (netif_msg_rx_status(sis_priv)) | |
1778 | printk(KERN_INFO "%s: Memory squeeze," | |
1779 | "deferring packet.\n", | |
1780 | net_dev->name); | |
1781 | sis_priv->rx_skbuff[entry] = NULL; | |
1782 | /* reset buffer descriptor state */ | |
1783 | sis_priv->rx_ring[entry].cmdsts = 0; | |
1784 | sis_priv->rx_ring[entry].bufptr = 0; | |
1785 | sis_priv->stats.rx_dropped++; | |
7380a78a | 1786 | sis_priv->cur_rx++; |
1da177e4 LT |
1787 | break; |
1788 | } | |
1789 | skb->dev = net_dev; | |
1790 | sis_priv->rx_skbuff[entry] = skb; | |
1791 | sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE; | |
1792 | sis_priv->rx_ring[entry].bufptr = | |
689be439 | 1793 | pci_map_single(sis_priv->pci_dev, skb->data, |
1da177e4 LT |
1794 | RX_BUF_SIZE, PCI_DMA_FROMDEVICE); |
1795 | sis_priv->dirty_rx++; | |
1796 | } | |
1797 | sis_priv->cur_rx++; | |
1798 | entry = sis_priv->cur_rx % NUM_RX_DESC; | |
1799 | rx_status = sis_priv->rx_ring[entry].cmdsts; | |
1800 | } // while | |
1801 | ||
1802 | /* refill the Rx buffer, what if the rate of refilling is slower | |
1803 | * than consuming ?? */ | |
7380a78a | 1804 | for (; sis_priv->cur_rx != sis_priv->dirty_rx; sis_priv->dirty_rx++) { |
1da177e4 LT |
1805 | struct sk_buff *skb; |
1806 | ||
1807 | entry = sis_priv->dirty_rx % NUM_RX_DESC; | |
1808 | ||
1809 | if (sis_priv->rx_skbuff[entry] == NULL) { | |
1810 | if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) { | |
1811 | /* not enough memory for skbuff, this makes a | |
1812 | * "hole" on the buffer ring, it is not clear | |
1813 | * how the hardware will react to this kind | |
1814 | * of degenerated buffer */ | |
1815 | if (netif_msg_rx_err(sis_priv)) | |
1816 | printk(KERN_INFO "%s: Memory squeeze," | |
1817 | "deferring packet.\n", | |
1818 | net_dev->name); | |
1819 | sis_priv->stats.rx_dropped++; | |
1820 | break; | |
1821 | } | |
1822 | skb->dev = net_dev; | |
1823 | sis_priv->rx_skbuff[entry] = skb; | |
1824 | sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE; | |
1825 | sis_priv->rx_ring[entry].bufptr = | |
689be439 | 1826 | pci_map_single(sis_priv->pci_dev, skb->data, |
1da177e4 LT |
1827 | RX_BUF_SIZE, PCI_DMA_FROMDEVICE); |
1828 | } | |
1829 | } | |
1830 | /* re-enable the potentially idle receive state matchine */ | |
1831 | outl(RxENA | inl(ioaddr + cr), ioaddr + cr ); | |
1832 | ||
1833 | return 0; | |
1834 | } | |
1835 | ||
1836 | /** | |
1837 | * sis900_finish_xmit - finish up transmission of packets | |
1838 | * @net_dev: the net device to be transmitted on | |
1839 | * | |
1840 | * Check for error condition and free socket buffer etc | |
1841 | * schedule for more transmission as needed | |
1842 | * Note: This fucntion is called by interrupt handler, | |
1843 | * don't do "too much" work here | |
1844 | */ | |
1845 | ||
1846 | static void sis900_finish_xmit (struct net_device *net_dev) | |
1847 | { | |
1848 | struct sis900_private *sis_priv = net_dev->priv; | |
1849 | ||
1850 | for (; sis_priv->dirty_tx != sis_priv->cur_tx; sis_priv->dirty_tx++) { | |
1851 | struct sk_buff *skb; | |
1852 | unsigned int entry; | |
1853 | u32 tx_status; | |
1854 | ||
1855 | entry = sis_priv->dirty_tx % NUM_TX_DESC; | |
1856 | tx_status = sis_priv->tx_ring[entry].cmdsts; | |
1857 | ||
1858 | if (tx_status & OWN) { | |
1859 | /* The packet is not transmitted yet (owned by hardware) ! | |
1860 | * Note: the interrupt is generated only when Tx Machine | |
1861 | * is idle, so this is an almost impossible case */ | |
1862 | break; | |
1863 | } | |
1864 | ||
1865 | if (tx_status & (ABORT | UNDERRUN | OWCOLL)) { | |
1866 | /* packet unsuccessfully transmitted */ | |
1867 | if (netif_msg_tx_err(sis_priv)) | |
1868 | printk(KERN_DEBUG "%s: Transmit " | |
1869 | "error, Tx status %8.8x.\n", | |
1870 | net_dev->name, tx_status); | |
1871 | sis_priv->stats.tx_errors++; | |
1872 | if (tx_status & UNDERRUN) | |
1873 | sis_priv->stats.tx_fifo_errors++; | |
1874 | if (tx_status & ABORT) | |
1875 | sis_priv->stats.tx_aborted_errors++; | |
1876 | if (tx_status & NOCARRIER) | |
1877 | sis_priv->stats.tx_carrier_errors++; | |
1878 | if (tx_status & OWCOLL) | |
1879 | sis_priv->stats.tx_window_errors++; | |
1880 | } else { | |
1881 | /* packet successfully transmitted */ | |
1882 | sis_priv->stats.collisions += (tx_status & COLCNT) >> 16; | |
1883 | sis_priv->stats.tx_bytes += tx_status & DSIZE; | |
1884 | sis_priv->stats.tx_packets++; | |
1885 | } | |
1886 | /* Free the original skb. */ | |
1887 | skb = sis_priv->tx_skbuff[entry]; | |
1888 | pci_unmap_single(sis_priv->pci_dev, | |
1889 | sis_priv->tx_ring[entry].bufptr, skb->len, | |
1890 | PCI_DMA_TODEVICE); | |
1891 | dev_kfree_skb_irq(skb); | |
1892 | sis_priv->tx_skbuff[entry] = NULL; | |
1893 | sis_priv->tx_ring[entry].bufptr = 0; | |
1894 | sis_priv->tx_ring[entry].cmdsts = 0; | |
1895 | } | |
1896 | ||
1897 | if (sis_priv->tx_full && netif_queue_stopped(net_dev) && | |
1898 | sis_priv->cur_tx - sis_priv->dirty_tx < NUM_TX_DESC - 4) { | |
1899 | /* The ring is no longer full, clear tx_full and schedule | |
1900 | * more transmission by netif_wake_queue(net_dev) */ | |
1901 | sis_priv->tx_full = 0; | |
1902 | netif_wake_queue (net_dev); | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | /** | |
1907 | * sis900_close - close sis900 device | |
1908 | * @net_dev: the net device to be closed | |
1909 | * | |
1910 | * Disable interrupts, stop the Tx and Rx Status Machine | |
1911 | * free Tx and RX socket buffer | |
1912 | */ | |
1913 | ||
1914 | static int sis900_close(struct net_device *net_dev) | |
1915 | { | |
1916 | long ioaddr = net_dev->base_addr; | |
1917 | struct sis900_private *sis_priv = net_dev->priv; | |
1918 | struct sk_buff *skb; | |
1919 | int i; | |
1920 | ||
1921 | netif_stop_queue(net_dev); | |
1922 | ||
1923 | /* Disable interrupts by clearing the interrupt mask. */ | |
1924 | outl(0x0000, ioaddr + imr); | |
1925 | outl(0x0000, ioaddr + ier); | |
1926 | ||
1927 | /* Stop the chip's Tx and Rx Status Machine */ | |
1928 | outl(RxDIS | TxDIS | inl(ioaddr + cr), ioaddr + cr); | |
1929 | ||
1930 | del_timer(&sis_priv->timer); | |
1931 | ||
1932 | free_irq(net_dev->irq, net_dev); | |
1933 | ||
1934 | /* Free Tx and RX skbuff */ | |
1935 | for (i = 0; i < NUM_RX_DESC; i++) { | |
1936 | skb = sis_priv->rx_skbuff[i]; | |
1937 | if (skb) { | |
1938 | pci_unmap_single(sis_priv->pci_dev, | |
1939 | sis_priv->rx_ring[i].bufptr, | |
1940 | RX_BUF_SIZE, PCI_DMA_FROMDEVICE); | |
1941 | dev_kfree_skb(skb); | |
1942 | sis_priv->rx_skbuff[i] = NULL; | |
1943 | } | |
1944 | } | |
1945 | for (i = 0; i < NUM_TX_DESC; i++) { | |
1946 | skb = sis_priv->tx_skbuff[i]; | |
1947 | if (skb) { | |
1948 | pci_unmap_single(sis_priv->pci_dev, | |
1949 | sis_priv->tx_ring[i].bufptr, skb->len, | |
1950 | PCI_DMA_TODEVICE); | |
1951 | dev_kfree_skb(skb); | |
1952 | sis_priv->tx_skbuff[i] = NULL; | |
1953 | } | |
1954 | } | |
1955 | ||
1956 | /* Green! Put the chip in low-power mode. */ | |
1957 | ||
1958 | return 0; | |
1959 | } | |
1960 | ||
1961 | /** | |
1962 | * sis900_get_drvinfo - Return information about driver | |
1963 | * @net_dev: the net device to probe | |
1964 | * @info: container for info returned | |
1965 | * | |
1966 | * Process ethtool command such as "ehtool -i" to show information | |
1967 | */ | |
1968 | ||
1969 | static void sis900_get_drvinfo(struct net_device *net_dev, | |
1970 | struct ethtool_drvinfo *info) | |
1971 | { | |
1972 | struct sis900_private *sis_priv = net_dev->priv; | |
1973 | ||
1974 | strcpy (info->driver, SIS900_MODULE_NAME); | |
1975 | strcpy (info->version, SIS900_DRV_VERSION); | |
1976 | strcpy (info->bus_info, pci_name(sis_priv->pci_dev)); | |
1977 | } | |
1978 | ||
1979 | static u32 sis900_get_msglevel(struct net_device *net_dev) | |
1980 | { | |
1981 | struct sis900_private *sis_priv = net_dev->priv; | |
1982 | return sis_priv->msg_enable; | |
1983 | } | |
1984 | ||
1985 | static void sis900_set_msglevel(struct net_device *net_dev, u32 value) | |
1986 | { | |
1987 | struct sis900_private *sis_priv = net_dev->priv; | |
1988 | sis_priv->msg_enable = value; | |
1989 | } | |
1990 | ||
da369b01 DV |
1991 | static u32 sis900_get_link(struct net_device *net_dev) |
1992 | { | |
1993 | struct sis900_private *sis_priv = net_dev->priv; | |
1994 | return mii_link_ok(&sis_priv->mii_info); | |
1995 | } | |
1996 | ||
1997 | static int sis900_get_settings(struct net_device *net_dev, | |
1998 | struct ethtool_cmd *cmd) | |
1999 | { | |
2000 | struct sis900_private *sis_priv = net_dev->priv; | |
2001 | spin_lock_irq(&sis_priv->lock); | |
2002 | mii_ethtool_gset(&sis_priv->mii_info, cmd); | |
2003 | spin_unlock_irq(&sis_priv->lock); | |
2004 | return 0; | |
2005 | } | |
2006 | ||
2007 | static int sis900_set_settings(struct net_device *net_dev, | |
2008 | struct ethtool_cmd *cmd) | |
2009 | { | |
2010 | struct sis900_private *sis_priv = net_dev->priv; | |
2011 | int rt; | |
2012 | spin_lock_irq(&sis_priv->lock); | |
2013 | rt = mii_ethtool_sset(&sis_priv->mii_info, cmd); | |
2014 | spin_unlock_irq(&sis_priv->lock); | |
2015 | return rt; | |
2016 | } | |
2017 | ||
2018 | static int sis900_nway_reset(struct net_device *net_dev) | |
2019 | { | |
2020 | struct sis900_private *sis_priv = net_dev->priv; | |
2021 | return mii_nway_restart(&sis_priv->mii_info); | |
2022 | } | |
2023 | ||
ea37ccea DV |
2024 | /** |
2025 | * sis900_set_wol - Set up Wake on Lan registers | |
2026 | * @net_dev: the net device to probe | |
2027 | * @wol: container for info passed to the driver | |
2028 | * | |
2029 | * Process ethtool command "wol" to setup wake on lan features. | |
2030 | * SiS900 supports sending WoL events if a correct packet is received, | |
2031 | * but there is no simple way to filter them to only a subset (broadcast, | |
2032 | * multicast, unicast or arp). | |
2033 | */ | |
2034 | ||
2035 | static int sis900_set_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) | |
2036 | { | |
2037 | struct sis900_private *sis_priv = net_dev->priv; | |
2038 | long pmctrl_addr = net_dev->base_addr + pmctrl; | |
2039 | u32 cfgpmcsr = 0, pmctrl_bits = 0; | |
2040 | ||
2041 | if (wol->wolopts == 0) { | |
2042 | pci_read_config_dword(sis_priv->pci_dev, CFGPMCSR, &cfgpmcsr); | |
7bef4b39 | 2043 | cfgpmcsr &= ~PME_EN; |
ea37ccea DV |
2044 | pci_write_config_dword(sis_priv->pci_dev, CFGPMCSR, cfgpmcsr); |
2045 | outl(pmctrl_bits, pmctrl_addr); | |
2046 | if (netif_msg_wol(sis_priv)) | |
2047 | printk(KERN_DEBUG "%s: Wake on LAN disabled\n", net_dev->name); | |
2048 | return 0; | |
2049 | } | |
2050 | ||
2051 | if (wol->wolopts & (WAKE_MAGICSECURE | WAKE_UCAST | WAKE_MCAST | |
2052 | | WAKE_BCAST | WAKE_ARP)) | |
2053 | return -EINVAL; | |
2054 | ||
2055 | if (wol->wolopts & WAKE_MAGIC) | |
2056 | pmctrl_bits |= MAGICPKT; | |
2057 | if (wol->wolopts & WAKE_PHY) | |
2058 | pmctrl_bits |= LINKON; | |
2059 | ||
2060 | outl(pmctrl_bits, pmctrl_addr); | |
2061 | ||
2062 | pci_read_config_dword(sis_priv->pci_dev, CFGPMCSR, &cfgpmcsr); | |
2063 | cfgpmcsr |= PME_EN; | |
2064 | pci_write_config_dword(sis_priv->pci_dev, CFGPMCSR, cfgpmcsr); | |
2065 | if (netif_msg_wol(sis_priv)) | |
2066 | printk(KERN_DEBUG "%s: Wake on LAN enabled\n", net_dev->name); | |
2067 | ||
2068 | return 0; | |
2069 | } | |
2070 | ||
2071 | static void sis900_get_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) | |
2072 | { | |
2073 | long pmctrl_addr = net_dev->base_addr + pmctrl; | |
2074 | u32 pmctrl_bits; | |
2075 | ||
2076 | pmctrl_bits = inl(pmctrl_addr); | |
2077 | if (pmctrl_bits & MAGICPKT) | |
2078 | wol->wolopts |= WAKE_MAGIC; | |
2079 | if (pmctrl_bits & LINKON) | |
2080 | wol->wolopts |= WAKE_PHY; | |
2081 | ||
2082 | wol->supported = (WAKE_PHY | WAKE_MAGIC); | |
2083 | } | |
2084 | ||
1da177e4 LT |
2085 | static struct ethtool_ops sis900_ethtool_ops = { |
2086 | .get_drvinfo = sis900_get_drvinfo, | |
2087 | .get_msglevel = sis900_get_msglevel, | |
2088 | .set_msglevel = sis900_set_msglevel, | |
da369b01 DV |
2089 | .get_link = sis900_get_link, |
2090 | .get_settings = sis900_get_settings, | |
2091 | .set_settings = sis900_set_settings, | |
2092 | .nway_reset = sis900_nway_reset, | |
ea37ccea DV |
2093 | .get_wol = sis900_get_wol, |
2094 | .set_wol = sis900_set_wol | |
1da177e4 LT |
2095 | }; |
2096 | ||
2097 | /** | |
2098 | * mii_ioctl - process MII i/o control command | |
2099 | * @net_dev: the net device to command for | |
2100 | * @rq: parameter for command | |
2101 | * @cmd: the i/o command | |
2102 | * | |
2103 | * Process MII command like read/write MII register | |
2104 | */ | |
2105 | ||
2106 | static int mii_ioctl(struct net_device *net_dev, struct ifreq *rq, int cmd) | |
2107 | { | |
2108 | struct sis900_private *sis_priv = net_dev->priv; | |
2109 | struct mii_ioctl_data *data = if_mii(rq); | |
2110 | ||
2111 | switch(cmd) { | |
2112 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ | |
2113 | data->phy_id = sis_priv->mii->phy_addr; | |
2114 | /* Fall Through */ | |
2115 | ||
2116 | case SIOCGMIIREG: /* Read MII PHY register. */ | |
2117 | data->val_out = mdio_read(net_dev, data->phy_id & 0x1f, data->reg_num & 0x1f); | |
2118 | return 0; | |
2119 | ||
2120 | case SIOCSMIIREG: /* Write MII PHY register. */ | |
2121 | if (!capable(CAP_NET_ADMIN)) | |
2122 | return -EPERM; | |
2123 | mdio_write(net_dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in); | |
2124 | return 0; | |
2125 | default: | |
2126 | return -EOPNOTSUPP; | |
2127 | } | |
2128 | } | |
2129 | ||
2130 | /** | |
2131 | * sis900_get_stats - Get sis900 read/write statistics | |
2132 | * @net_dev: the net device to get statistics for | |
2133 | * | |
2134 | * get tx/rx statistics for sis900 | |
2135 | */ | |
2136 | ||
2137 | static struct net_device_stats * | |
2138 | sis900_get_stats(struct net_device *net_dev) | |
2139 | { | |
2140 | struct sis900_private *sis_priv = net_dev->priv; | |
2141 | ||
2142 | return &sis_priv->stats; | |
2143 | } | |
2144 | ||
2145 | /** | |
2146 | * sis900_set_config - Set media type by net_device.set_config | |
2147 | * @dev: the net device for media type change | |
2148 | * @map: ifmap passed by ifconfig | |
2149 | * | |
2150 | * Set media type to 10baseT, 100baseT or 0(for auto) by ifconfig | |
2151 | * we support only port changes. All other runtime configuration | |
2152 | * changes will be ignored | |
2153 | */ | |
2154 | ||
2155 | static int sis900_set_config(struct net_device *dev, struct ifmap *map) | |
2156 | { | |
2157 | struct sis900_private *sis_priv = dev->priv; | |
2158 | struct mii_phy *mii_phy = sis_priv->mii; | |
2159 | ||
2160 | u16 status; | |
2161 | ||
2162 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { | |
2163 | /* we switch on the ifmap->port field. I couldn't find anything | |
2164 | * like a definition or standard for the values of that field. | |
2165 | * I think the meaning of those values is device specific. But | |
2166 | * since I would like to change the media type via the ifconfig | |
2167 | * command I use the definition from linux/netdevice.h | |
2168 | * (which seems to be different from the ifport(pcmcia) definition) */ | |
2169 | switch(map->port){ | |
2170 | case IF_PORT_UNKNOWN: /* use auto here */ | |
2171 | dev->if_port = map->port; | |
2172 | /* we are going to change the media type, so the Link | |
2173 | * will be temporary down and we need to reflect that | |
2174 | * here. When the Link comes up again, it will be | |
2175 | * sensed by the sis_timer procedure, which also does | |
2176 | * all the rest for us */ | |
2177 | netif_carrier_off(dev); | |
2178 | ||
2179 | /* read current state */ | |
2180 | status = mdio_read(dev, mii_phy->phy_addr, MII_CONTROL); | |
2181 | ||
2182 | /* enable auto negotiation and reset the negotioation | |
2183 | * (I don't really know what the auto negatiotiation | |
2184 | * reset really means, but it sounds for me right to | |
2185 | * do one here) */ | |
2186 | mdio_write(dev, mii_phy->phy_addr, | |
2187 | MII_CONTROL, status | MII_CNTL_AUTO | MII_CNTL_RST_AUTO); | |
2188 | ||
2189 | break; | |
2190 | ||
2191 | case IF_PORT_10BASET: /* 10BaseT */ | |
2192 | dev->if_port = map->port; | |
2193 | ||
2194 | /* we are going to change the media type, so the Link | |
2195 | * will be temporary down and we need to reflect that | |
2196 | * here. When the Link comes up again, it will be | |
2197 | * sensed by the sis_timer procedure, which also does | |
2198 | * all the rest for us */ | |
2199 | netif_carrier_off(dev); | |
2200 | ||
2201 | /* set Speed to 10Mbps */ | |
2202 | /* read current state */ | |
2203 | status = mdio_read(dev, mii_phy->phy_addr, MII_CONTROL); | |
2204 | ||
2205 | /* disable auto negotiation and force 10MBit mode*/ | |
2206 | mdio_write(dev, mii_phy->phy_addr, | |
2207 | MII_CONTROL, status & ~(MII_CNTL_SPEED | | |
2208 | MII_CNTL_AUTO)); | |
2209 | break; | |
2210 | ||
2211 | case IF_PORT_100BASET: /* 100BaseT */ | |
2212 | case IF_PORT_100BASETX: /* 100BaseTx */ | |
2213 | dev->if_port = map->port; | |
2214 | ||
2215 | /* we are going to change the media type, so the Link | |
2216 | * will be temporary down and we need to reflect that | |
2217 | * here. When the Link comes up again, it will be | |
2218 | * sensed by the sis_timer procedure, which also does | |
2219 | * all the rest for us */ | |
2220 | netif_carrier_off(dev); | |
2221 | ||
2222 | /* set Speed to 100Mbps */ | |
2223 | /* disable auto negotiation and enable 100MBit Mode */ | |
2224 | status = mdio_read(dev, mii_phy->phy_addr, MII_CONTROL); | |
2225 | mdio_write(dev, mii_phy->phy_addr, | |
2226 | MII_CONTROL, (status & ~MII_CNTL_SPEED) | | |
2227 | MII_CNTL_SPEED); | |
2228 | ||
2229 | break; | |
2230 | ||
2231 | case IF_PORT_10BASE2: /* 10Base2 */ | |
2232 | case IF_PORT_AUI: /* AUI */ | |
2233 | case IF_PORT_100BASEFX: /* 100BaseFx */ | |
2234 | /* These Modes are not supported (are they?)*/ | |
2235 | return -EOPNOTSUPP; | |
2236 | break; | |
2237 | ||
2238 | default: | |
2239 | return -EINVAL; | |
2240 | } | |
2241 | } | |
2242 | return 0; | |
2243 | } | |
2244 | ||
2245 | /** | |
2246 | * sis900_mcast_bitnr - compute hashtable index | |
2247 | * @addr: multicast address | |
2248 | * @revision: revision id of chip | |
2249 | * | |
2250 | * SiS 900 uses the most sigificant 7 bits to index a 128 bits multicast | |
2251 | * hash table, which makes this function a little bit different from other drivers | |
2252 | * SiS 900 B0 & 635 M/B uses the most significat 8 bits to index 256 bits | |
2253 | * multicast hash table. | |
2254 | */ | |
2255 | ||
2256 | static inline u16 sis900_mcast_bitnr(u8 *addr, u8 revision) | |
2257 | { | |
2258 | ||
2259 | u32 crc = ether_crc(6, addr); | |
2260 | ||
2261 | /* leave 8 or 7 most siginifant bits */ | |
2262 | if ((revision >= SIS635A_900_REV) || (revision == SIS900B_900_REV)) | |
2263 | return ((int)(crc >> 24)); | |
2264 | else | |
2265 | return ((int)(crc >> 25)); | |
2266 | } | |
2267 | ||
2268 | /** | |
2269 | * set_rx_mode - Set SiS900 receive mode | |
2270 | * @net_dev: the net device to be set | |
2271 | * | |
2272 | * Set SiS900 receive mode for promiscuous, multicast, or broadcast mode. | |
2273 | * And set the appropriate multicast filter. | |
2274 | * Multicast hash table changes from 128 to 256 bits for 635M/B & 900B0. | |
2275 | */ | |
2276 | ||
2277 | static void set_rx_mode(struct net_device *net_dev) | |
2278 | { | |
2279 | long ioaddr = net_dev->base_addr; | |
2280 | struct sis900_private * sis_priv = net_dev->priv; | |
2281 | u16 mc_filter[16] = {0}; /* 256/128 bits multicast hash table */ | |
2282 | int i, table_entries; | |
2283 | u32 rx_mode; | |
2284 | ||
2285 | /* 635 Hash Table entires = 256(2^16) */ | |
2286 | if((sis_priv->chipset_rev >= SIS635A_900_REV) || | |
2287 | (sis_priv->chipset_rev == SIS900B_900_REV)) | |
2288 | table_entries = 16; | |
2289 | else | |
2290 | table_entries = 8; | |
2291 | ||
2292 | if (net_dev->flags & IFF_PROMISC) { | |
2293 | /* Accept any kinds of packets */ | |
2294 | rx_mode = RFPromiscuous; | |
2295 | for (i = 0; i < table_entries; i++) | |
2296 | mc_filter[i] = 0xffff; | |
2297 | } else if ((net_dev->mc_count > multicast_filter_limit) || | |
2298 | (net_dev->flags & IFF_ALLMULTI)) { | |
2299 | /* too many multicast addresses or accept all multicast packet */ | |
2300 | rx_mode = RFAAB | RFAAM; | |
2301 | for (i = 0; i < table_entries; i++) | |
2302 | mc_filter[i] = 0xffff; | |
2303 | } else { | |
2304 | /* Accept Broadcast packet, destination address matchs our | |
2305 | * MAC address, use Receive Filter to reject unwanted MCAST | |
2306 | * packets */ | |
2307 | struct dev_mc_list *mclist; | |
2308 | rx_mode = RFAAB; | |
2309 | for (i = 0, mclist = net_dev->mc_list; | |
2310 | mclist && i < net_dev->mc_count; | |
2311 | i++, mclist = mclist->next) { | |
2312 | unsigned int bit_nr = | |
2313 | sis900_mcast_bitnr(mclist->dmi_addr, sis_priv->chipset_rev); | |
2314 | mc_filter[bit_nr >> 4] |= (1 << (bit_nr & 0xf)); | |
2315 | } | |
2316 | } | |
2317 | ||
2318 | /* update Multicast Hash Table in Receive Filter */ | |
2319 | for (i = 0; i < table_entries; i++) { | |
2320 | /* why plus 0x04 ??, That makes the correct value for hash table. */ | |
2321 | outl((u32)(0x00000004+i) << RFADDR_shift, ioaddr + rfcr); | |
2322 | outl(mc_filter[i], ioaddr + rfdr); | |
2323 | } | |
2324 | ||
2325 | outl(RFEN | rx_mode, ioaddr + rfcr); | |
2326 | ||
2327 | /* sis900 is capable of looping back packets at MAC level for | |
2328 | * debugging purpose */ | |
2329 | if (net_dev->flags & IFF_LOOPBACK) { | |
2330 | u32 cr_saved; | |
2331 | /* We must disable Tx/Rx before setting loopback mode */ | |
2332 | cr_saved = inl(ioaddr + cr); | |
2333 | outl(cr_saved | TxDIS | RxDIS, ioaddr + cr); | |
2334 | /* enable loopback */ | |
2335 | outl(inl(ioaddr + txcfg) | TxMLB, ioaddr + txcfg); | |
2336 | outl(inl(ioaddr + rxcfg) | RxATX, ioaddr + rxcfg); | |
2337 | /* restore cr */ | |
2338 | outl(cr_saved, ioaddr + cr); | |
2339 | } | |
2340 | ||
2341 | return; | |
2342 | } | |
2343 | ||
2344 | /** | |
2345 | * sis900_reset - Reset sis900 MAC | |
2346 | * @net_dev: the net device to reset | |
2347 | * | |
2348 | * reset sis900 MAC and wait until finished | |
2349 | * reset through command register | |
2350 | * change backoff algorithm for 900B0 & 635 M/B | |
2351 | */ | |
2352 | ||
2353 | static void sis900_reset(struct net_device *net_dev) | |
2354 | { | |
2355 | struct sis900_private * sis_priv = net_dev->priv; | |
2356 | long ioaddr = net_dev->base_addr; | |
2357 | int i = 0; | |
2358 | u32 status = TxRCMP | RxRCMP; | |
2359 | ||
2360 | outl(0, ioaddr + ier); | |
2361 | outl(0, ioaddr + imr); | |
2362 | outl(0, ioaddr + rfcr); | |
2363 | ||
2364 | outl(RxRESET | TxRESET | RESET | inl(ioaddr + cr), ioaddr + cr); | |
2365 | ||
2366 | /* Check that the chip has finished the reset. */ | |
2367 | while (status && (i++ < 1000)) { | |
2368 | status ^= (inl(isr + ioaddr) & status); | |
2369 | } | |
2370 | ||
2371 | if( (sis_priv->chipset_rev >= SIS635A_900_REV) || | |
2372 | (sis_priv->chipset_rev == SIS900B_900_REV) ) | |
2373 | outl(PESEL | RND_CNT, ioaddr + cfg); | |
2374 | else | |
2375 | outl(PESEL, ioaddr + cfg); | |
2376 | } | |
2377 | ||
2378 | /** | |
2379 | * sis900_remove - Remove sis900 device | |
2380 | * @pci_dev: the pci device to be removed | |
2381 | * | |
2382 | * remove and release SiS900 net device | |
2383 | */ | |
2384 | ||
2385 | static void __devexit sis900_remove(struct pci_dev *pci_dev) | |
2386 | { | |
2387 | struct net_device *net_dev = pci_get_drvdata(pci_dev); | |
2388 | struct sis900_private * sis_priv = net_dev->priv; | |
2389 | struct mii_phy *phy = NULL; | |
2390 | ||
2391 | while (sis_priv->first_mii) { | |
2392 | phy = sis_priv->first_mii; | |
2393 | sis_priv->first_mii = phy->next; | |
2394 | kfree(phy); | |
2395 | } | |
2396 | ||
2397 | pci_free_consistent(pci_dev, RX_TOTAL_SIZE, sis_priv->rx_ring, | |
2398 | sis_priv->rx_ring_dma); | |
2399 | pci_free_consistent(pci_dev, TX_TOTAL_SIZE, sis_priv->tx_ring, | |
2400 | sis_priv->tx_ring_dma); | |
2401 | unregister_netdev(net_dev); | |
2402 | free_netdev(net_dev); | |
2403 | pci_release_regions(pci_dev); | |
2404 | pci_set_drvdata(pci_dev, NULL); | |
2405 | } | |
2406 | ||
2407 | #ifdef CONFIG_PM | |
2408 | ||
2409 | static int sis900_suspend(struct pci_dev *pci_dev, pm_message_t state) | |
2410 | { | |
2411 | struct net_device *net_dev = pci_get_drvdata(pci_dev); | |
2412 | long ioaddr = net_dev->base_addr; | |
2413 | ||
2414 | if(!netif_running(net_dev)) | |
2415 | return 0; | |
2416 | ||
2417 | netif_stop_queue(net_dev); | |
2418 | netif_device_detach(net_dev); | |
2419 | ||
2420 | /* Stop the chip's Tx and Rx Status Machine */ | |
2421 | outl(RxDIS | TxDIS | inl(ioaddr + cr), ioaddr + cr); | |
2422 | ||
2423 | pci_set_power_state(pci_dev, PCI_D3hot); | |
2424 | pci_save_state(pci_dev); | |
2425 | ||
2426 | return 0; | |
2427 | } | |
2428 | ||
2429 | static int sis900_resume(struct pci_dev *pci_dev) | |
2430 | { | |
2431 | struct net_device *net_dev = pci_get_drvdata(pci_dev); | |
2432 | struct sis900_private *sis_priv = net_dev->priv; | |
2433 | long ioaddr = net_dev->base_addr; | |
2434 | ||
2435 | if(!netif_running(net_dev)) | |
2436 | return 0; | |
2437 | pci_restore_state(pci_dev); | |
2438 | pci_set_power_state(pci_dev, PCI_D0); | |
2439 | ||
2440 | sis900_init_rxfilter(net_dev); | |
2441 | ||
2442 | sis900_init_tx_ring(net_dev); | |
2443 | sis900_init_rx_ring(net_dev); | |
2444 | ||
2445 | set_rx_mode(net_dev); | |
2446 | ||
2447 | netif_device_attach(net_dev); | |
2448 | netif_start_queue(net_dev); | |
2449 | ||
2450 | /* Workaround for EDB */ | |
2451 | sis900_set_mode(ioaddr, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); | |
2452 | ||
2453 | /* Enable all known interrupts by setting the interrupt mask. */ | |
2454 | outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); | |
2455 | outl(RxENA | inl(ioaddr + cr), ioaddr + cr); | |
2456 | outl(IE, ioaddr + ier); | |
2457 | ||
2458 | sis900_check_mode(net_dev, sis_priv->mii); | |
2459 | ||
2460 | return 0; | |
2461 | } | |
2462 | #endif /* CONFIG_PM */ | |
2463 | ||
2464 | static struct pci_driver sis900_pci_driver = { | |
2465 | .name = SIS900_MODULE_NAME, | |
2466 | .id_table = sis900_pci_tbl, | |
2467 | .probe = sis900_probe, | |
2468 | .remove = __devexit_p(sis900_remove), | |
2469 | #ifdef CONFIG_PM | |
2470 | .suspend = sis900_suspend, | |
2471 | .resume = sis900_resume, | |
2472 | #endif /* CONFIG_PM */ | |
2473 | }; | |
2474 | ||
2475 | static int __init sis900_init_module(void) | |
2476 | { | |
2477 | /* when a module, this is printed whether or not devices are found in probe */ | |
2478 | #ifdef MODULE | |
2479 | printk(version); | |
2480 | #endif | |
2481 | ||
2482 | return pci_module_init(&sis900_pci_driver); | |
2483 | } | |
2484 | ||
2485 | static void __exit sis900_cleanup_module(void) | |
2486 | { | |
2487 | pci_unregister_driver(&sis900_pci_driver); | |
2488 | } | |
2489 | ||
2490 | module_init(sis900_init_module); | |
2491 | module_exit(sis900_cleanup_module); | |
2492 |