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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * This code is derived from the VIA reference driver (copyright message | |
3 | * below) provided to Red Hat by VIA Networking Technologies, Inc. for | |
4 | * addition to the Linux kernel. | |
5 | * | |
6 | * The code has been merged into one source file, cleaned up to follow | |
7 | * Linux coding style, ported to the Linux 2.6 kernel tree and cleaned | |
8 | * for 64bit hardware platforms. | |
9 | * | |
10 | * TODO | |
1da177e4 LT |
11 | * rx_copybreak/alignment |
12 | * Scatter gather | |
13 | * More testing | |
14 | * | |
113aa838 | 15 | * The changes are (c) Copyright 2004, Red Hat Inc. <alan@lxorguk.ukuu.org.uk> |
1da177e4 LT |
16 | * Additional fixes and clean up: Francois Romieu |
17 | * | |
18 | * This source has not been verified for use in safety critical systems. | |
19 | * | |
20 | * Please direct queries about the revamped driver to the linux-kernel | |
21 | * list not VIA. | |
22 | * | |
23 | * Original code: | |
24 | * | |
25 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. | |
26 | * All rights reserved. | |
27 | * | |
28 | * This software may be redistributed and/or modified under | |
29 | * the terms of the GNU General Public License as published by the Free | |
30 | * Software Foundation; either version 2 of the License, or | |
31 | * any later version. | |
32 | * | |
33 | * This program is distributed in the hope that it will be useful, but | |
34 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
35 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
36 | * for more details. | |
37 | * | |
38 | * Author: Chuang Liang-Shing, AJ Jiang | |
39 | * | |
40 | * Date: Jan 24, 2003 | |
41 | * | |
42 | * MODULE_LICENSE("GPL"); | |
43 | * | |
44 | */ | |
45 | ||
46 | ||
47 | #include <linux/module.h> | |
48 | #include <linux/types.h> | |
1da177e4 LT |
49 | #include <linux/init.h> |
50 | #include <linux/mm.h> | |
51 | #include <linux/errno.h> | |
52 | #include <linux/ioport.h> | |
53 | #include <linux/pci.h> | |
54 | #include <linux/kernel.h> | |
55 | #include <linux/netdevice.h> | |
56 | #include <linux/etherdevice.h> | |
57 | #include <linux/skbuff.h> | |
58 | #include <linux/delay.h> | |
59 | #include <linux/timer.h> | |
60 | #include <linux/slab.h> | |
61 | #include <linux/interrupt.h> | |
1da177e4 LT |
62 | #include <linux/string.h> |
63 | #include <linux/wait.h> | |
c4067400 | 64 | #include <linux/io.h> |
1da177e4 | 65 | #include <linux/if.h> |
c4067400 | 66 | #include <linux/uaccess.h> |
1da177e4 LT |
67 | #include <linux/proc_fs.h> |
68 | #include <linux/inetdevice.h> | |
69 | #include <linux/reboot.h> | |
70 | #include <linux/ethtool.h> | |
71 | #include <linux/mii.h> | |
72 | #include <linux/in.h> | |
73 | #include <linux/if_arp.h> | |
501e4d24 | 74 | #include <linux/if_vlan.h> |
1da177e4 LT |
75 | #include <linux/ip.h> |
76 | #include <linux/tcp.h> | |
77 | #include <linux/udp.h> | |
78 | #include <linux/crc-ccitt.h> | |
79 | #include <linux/crc32.h> | |
80 | ||
81 | #include "via-velocity.h" | |
82 | ||
83 | ||
c4067400 | 84 | static int velocity_nics; |
1da177e4 LT |
85 | static int msglevel = MSG_LEVEL_INFO; |
86 | ||
01faccbf SH |
87 | /** |
88 | * mac_get_cam_mask - Read a CAM mask | |
89 | * @regs: register block for this velocity | |
90 | * @mask: buffer to store mask | |
91 | * | |
92 | * Fetch the mask bits of the selected CAM and store them into the | |
93 | * provided mask buffer. | |
94 | */ | |
c4067400 | 95 | static void mac_get_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
01faccbf SH |
96 | { |
97 | int i; | |
98 | ||
99 | /* Select CAM mask */ | |
100 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
101 | ||
102 | writeb(0, ®s->CAMADDR); | |
103 | ||
104 | /* read mask */ | |
105 | for (i = 0; i < 8; i++) | |
106 | *mask++ = readb(&(regs->MARCAM[i])); | |
107 | ||
108 | /* disable CAMEN */ | |
109 | writeb(0, ®s->CAMADDR); | |
110 | ||
111 | /* Select mar */ | |
112 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
01faccbf SH |
113 | } |
114 | ||
115 | ||
116 | /** | |
117 | * mac_set_cam_mask - Set a CAM mask | |
118 | * @regs: register block for this velocity | |
119 | * @mask: CAM mask to load | |
120 | * | |
121 | * Store a new mask into a CAM | |
122 | */ | |
c4067400 | 123 | static void mac_set_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
01faccbf SH |
124 | { |
125 | int i; | |
126 | /* Select CAM mask */ | |
127 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
128 | ||
129 | writeb(CAMADDR_CAMEN, ®s->CAMADDR); | |
130 | ||
c4067400 | 131 | for (i = 0; i < 8; i++) |
01faccbf | 132 | writeb(*mask++, &(regs->MARCAM[i])); |
c4067400 | 133 | |
01faccbf SH |
134 | /* disable CAMEN */ |
135 | writeb(0, ®s->CAMADDR); | |
136 | ||
137 | /* Select mar */ | |
138 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
139 | } | |
140 | ||
c4067400 | 141 | static void mac_set_vlan_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
01faccbf SH |
142 | { |
143 | int i; | |
144 | /* Select CAM mask */ | |
145 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
146 | ||
147 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR); | |
148 | ||
c4067400 | 149 | for (i = 0; i < 8; i++) |
01faccbf | 150 | writeb(*mask++, &(regs->MARCAM[i])); |
c4067400 | 151 | |
01faccbf SH |
152 | /* disable CAMEN */ |
153 | writeb(0, ®s->CAMADDR); | |
154 | ||
155 | /* Select mar */ | |
156 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
157 | } | |
158 | ||
159 | /** | |
160 | * mac_set_cam - set CAM data | |
161 | * @regs: register block of this velocity | |
162 | * @idx: Cam index | |
163 | * @addr: 2 or 6 bytes of CAM data | |
164 | * | |
165 | * Load an address or vlan tag into a CAM | |
166 | */ | |
c4067400 | 167 | static void mac_set_cam(struct mac_regs __iomem *regs, int idx, const u8 *addr) |
01faccbf SH |
168 | { |
169 | int i; | |
170 | ||
171 | /* Select CAM mask */ | |
172 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
173 | ||
174 | idx &= (64 - 1); | |
175 | ||
176 | writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR); | |
177 | ||
c4067400 | 178 | for (i = 0; i < 6; i++) |
01faccbf | 179 | writeb(*addr++, &(regs->MARCAM[i])); |
c4067400 | 180 | |
01faccbf SH |
181 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); |
182 | ||
183 | udelay(10); | |
184 | ||
185 | writeb(0, ®s->CAMADDR); | |
186 | ||
187 | /* Select mar */ | |
188 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
189 | } | |
190 | ||
c4067400 | 191 | static void mac_set_vlan_cam(struct mac_regs __iomem *regs, int idx, |
01faccbf SH |
192 | const u8 *addr) |
193 | { | |
194 | ||
195 | /* Select CAM mask */ | |
196 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
197 | ||
198 | idx &= (64 - 1); | |
199 | ||
200 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR); | |
201 | writew(*((u16 *) addr), ®s->MARCAM[0]); | |
202 | ||
203 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); | |
204 | ||
205 | udelay(10); | |
206 | ||
207 | writeb(0, ®s->CAMADDR); | |
208 | ||
209 | /* Select mar */ | |
210 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
211 | } | |
212 | ||
213 | ||
214 | /** | |
215 | * mac_wol_reset - reset WOL after exiting low power | |
216 | * @regs: register block of this velocity | |
217 | * | |
218 | * Called after we drop out of wake on lan mode in order to | |
219 | * reset the Wake on lan features. This function doesn't restore | |
220 | * the rest of the logic from the result of sleep/wakeup | |
221 | */ | |
c4067400 | 222 | static void mac_wol_reset(struct mac_regs __iomem *regs) |
01faccbf SH |
223 | { |
224 | ||
225 | /* Turn off SWPTAG right after leaving power mode */ | |
226 | BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW); | |
227 | /* clear sticky bits */ | |
228 | BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); | |
229 | ||
230 | BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR); | |
231 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
232 | /* disable force PME-enable */ | |
233 | writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr); | |
234 | /* disable power-event config bit */ | |
235 | writew(0xFFFF, ®s->WOLCRClr); | |
236 | /* clear power status */ | |
237 | writew(0xFFFF, ®s->WOLSRClr); | |
238 | } | |
1da177e4 | 239 | |
7282d491 | 240 | static const struct ethtool_ops velocity_ethtool_ops; |
1da177e4 LT |
241 | |
242 | /* | |
243 | Define module options | |
244 | */ | |
245 | ||
246 | MODULE_AUTHOR("VIA Networking Technologies, Inc."); | |
247 | MODULE_LICENSE("GPL"); | |
248 | MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"); | |
249 | ||
c4067400 DJ |
250 | #define VELOCITY_PARAM(N, D) \ |
251 | static int N[MAX_UNITS] = OPTION_DEFAULT;\ | |
1da177e4 | 252 | module_param_array(N, int, NULL, 0); \ |
c4067400 | 253 | MODULE_PARM_DESC(N, D); |
1da177e4 LT |
254 | |
255 | #define RX_DESC_MIN 64 | |
256 | #define RX_DESC_MAX 255 | |
257 | #define RX_DESC_DEF 64 | |
258 | VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors"); | |
259 | ||
260 | #define TX_DESC_MIN 16 | |
261 | #define TX_DESC_MAX 256 | |
262 | #define TX_DESC_DEF 64 | |
263 | VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors"); | |
264 | ||
1da177e4 LT |
265 | #define RX_THRESH_MIN 0 |
266 | #define RX_THRESH_MAX 3 | |
267 | #define RX_THRESH_DEF 0 | |
268 | /* rx_thresh[] is used for controlling the receive fifo threshold. | |
269 | 0: indicate the rxfifo threshold is 128 bytes. | |
270 | 1: indicate the rxfifo threshold is 512 bytes. | |
271 | 2: indicate the rxfifo threshold is 1024 bytes. | |
272 | 3: indicate the rxfifo threshold is store & forward. | |
273 | */ | |
274 | VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); | |
275 | ||
276 | #define DMA_LENGTH_MIN 0 | |
277 | #define DMA_LENGTH_MAX 7 | |
278 | #define DMA_LENGTH_DEF 0 | |
279 | ||
280 | /* DMA_length[] is used for controlling the DMA length | |
281 | 0: 8 DWORDs | |
282 | 1: 16 DWORDs | |
283 | 2: 32 DWORDs | |
284 | 3: 64 DWORDs | |
285 | 4: 128 DWORDs | |
286 | 5: 256 DWORDs | |
287 | 6: SF(flush till emply) | |
288 | 7: SF(flush till emply) | |
289 | */ | |
290 | VELOCITY_PARAM(DMA_length, "DMA length"); | |
291 | ||
1da177e4 LT |
292 | #define IP_ALIG_DEF 0 |
293 | /* IP_byte_align[] is used for IP header DWORD byte aligned | |
294 | 0: indicate the IP header won't be DWORD byte aligned.(Default) . | |
295 | 1: indicate the IP header will be DWORD byte aligned. | |
296 | In some enviroment, the IP header should be DWORD byte aligned, | |
297 | or the packet will be droped when we receive it. (eg: IPVS) | |
298 | */ | |
299 | VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); | |
300 | ||
301 | #define TX_CSUM_DEF 1 | |
302 | /* txcsum_offload[] is used for setting the checksum offload ability of NIC. | |
303 | (We only support RX checksum offload now) | |
304 | 0: disable csum_offload[checksum offload | |
305 | 1: enable checksum offload. (Default) | |
306 | */ | |
307 | VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload"); | |
308 | ||
309 | #define FLOW_CNTL_DEF 1 | |
310 | #define FLOW_CNTL_MIN 1 | |
311 | #define FLOW_CNTL_MAX 5 | |
312 | ||
313 | /* flow_control[] is used for setting the flow control ability of NIC. | |
314 | 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR. | |
315 | 2: enable TX flow control. | |
316 | 3: enable RX flow control. | |
317 | 4: enable RX/TX flow control. | |
318 | 5: disable | |
319 | */ | |
320 | VELOCITY_PARAM(flow_control, "Enable flow control ability"); | |
321 | ||
322 | #define MED_LNK_DEF 0 | |
323 | #define MED_LNK_MIN 0 | |
324 | #define MED_LNK_MAX 4 | |
325 | /* speed_duplex[] is used for setting the speed and duplex mode of NIC. | |
326 | 0: indicate autonegotiation for both speed and duplex mode | |
327 | 1: indicate 100Mbps half duplex mode | |
328 | 2: indicate 100Mbps full duplex mode | |
329 | 3: indicate 10Mbps half duplex mode | |
330 | 4: indicate 10Mbps full duplex mode | |
331 | ||
332 | Note: | |
c4067400 DJ |
333 | if EEPROM have been set to the force mode, this option is ignored |
334 | by driver. | |
1da177e4 LT |
335 | */ |
336 | VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode"); | |
337 | ||
338 | #define VAL_PKT_LEN_DEF 0 | |
339 | /* ValPktLen[] is used for setting the checksum offload ability of NIC. | |
340 | 0: Receive frame with invalid layer 2 length (Default) | |
341 | 1: Drop frame with invalid layer 2 length | |
342 | */ | |
343 | VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); | |
344 | ||
345 | #define WOL_OPT_DEF 0 | |
346 | #define WOL_OPT_MIN 0 | |
347 | #define WOL_OPT_MAX 7 | |
348 | /* wol_opts[] is used for controlling wake on lan behavior. | |
349 | 0: Wake up if recevied a magic packet. (Default) | |
350 | 1: Wake up if link status is on/off. | |
351 | 2: Wake up if recevied an arp packet. | |
352 | 4: Wake up if recevied any unicast packet. | |
353 | Those value can be sumed up to support more than one option. | |
354 | */ | |
355 | VELOCITY_PARAM(wol_opts, "Wake On Lan options"); | |
356 | ||
357 | #define INT_WORKS_DEF 20 | |
358 | #define INT_WORKS_MIN 10 | |
359 | #define INT_WORKS_MAX 64 | |
360 | ||
361 | VELOCITY_PARAM(int_works, "Number of packets per interrupt services"); | |
362 | ||
363 | static int rx_copybreak = 200; | |
364 | module_param(rx_copybreak, int, 0644); | |
365 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); | |
366 | ||
1da177e4 LT |
367 | /* |
368 | * Internal board variants. At the moment we have only one | |
369 | */ | |
4f14b92f | 370 | static struct velocity_info_tbl chip_info_table[] = { |
cabb7667 JG |
371 | {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL}, |
372 | { } | |
1da177e4 LT |
373 | }; |
374 | ||
375 | /* | |
376 | * Describe the PCI device identifiers that we support in this | |
377 | * device driver. Used for hotplug autoloading. | |
378 | */ | |
e54f4893 JG |
379 | static const struct pci_device_id velocity_id_table[] __devinitdata = { |
380 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) }, | |
381 | { } | |
1da177e4 LT |
382 | }; |
383 | ||
384 | MODULE_DEVICE_TABLE(pci, velocity_id_table); | |
385 | ||
386 | /** | |
387 | * get_chip_name - identifier to name | |
388 | * @id: chip identifier | |
389 | * | |
390 | * Given a chip identifier return a suitable description. Returns | |
391 | * a pointer a static string valid while the driver is loaded. | |
392 | */ | |
01faccbf | 393 | static const char __devinit *get_chip_name(enum chip_type chip_id) |
1da177e4 LT |
394 | { |
395 | int i; | |
396 | for (i = 0; chip_info_table[i].name != NULL; i++) | |
397 | if (chip_info_table[i].chip_id == chip_id) | |
398 | break; | |
399 | return chip_info_table[i].name; | |
400 | } | |
401 | ||
402 | /** | |
403 | * velocity_remove1 - device unplug | |
404 | * @pdev: PCI device being removed | |
405 | * | |
406 | * Device unload callback. Called on an unplug or on module | |
407 | * unload for each active device that is present. Disconnects | |
408 | * the device from the network layer and frees all the resources | |
409 | */ | |
1da177e4 LT |
410 | static void __devexit velocity_remove1(struct pci_dev *pdev) |
411 | { | |
412 | struct net_device *dev = pci_get_drvdata(pdev); | |
8ab6f3f7 | 413 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 414 | |
1da177e4 LT |
415 | unregister_netdev(dev); |
416 | iounmap(vptr->mac_regs); | |
417 | pci_release_regions(pdev); | |
418 | pci_disable_device(pdev); | |
419 | pci_set_drvdata(pdev, NULL); | |
420 | free_netdev(dev); | |
421 | ||
422 | velocity_nics--; | |
423 | } | |
424 | ||
425 | /** | |
426 | * velocity_set_int_opt - parser for integer options | |
427 | * @opt: pointer to option value | |
428 | * @val: value the user requested (or -1 for default) | |
429 | * @min: lowest value allowed | |
430 | * @max: highest value allowed | |
431 | * @def: default value | |
432 | * @name: property name | |
433 | * @dev: device name | |
434 | * | |
435 | * Set an integer property in the module options. This function does | |
436 | * all the verification and checking as well as reporting so that | |
437 | * we don't duplicate code for each option. | |
438 | */ | |
07b5f6a6 | 439 | static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname) |
1da177e4 LT |
440 | { |
441 | if (val == -1) | |
442 | *opt = def; | |
443 | else if (val < min || val > max) { | |
444 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n", | |
445 | devname, name, min, max); | |
446 | *opt = def; | |
447 | } else { | |
448 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n", | |
449 | devname, name, val); | |
450 | *opt = val; | |
451 | } | |
452 | } | |
453 | ||
454 | /** | |
455 | * velocity_set_bool_opt - parser for boolean options | |
456 | * @opt: pointer to option value | |
457 | * @val: value the user requested (or -1 for default) | |
458 | * @def: default value (yes/no) | |
459 | * @flag: numeric value to set for true. | |
460 | * @name: property name | |
461 | * @dev: device name | |
462 | * | |
463 | * Set a boolean property in the module options. This function does | |
464 | * all the verification and checking as well as reporting so that | |
465 | * we don't duplicate code for each option. | |
466 | */ | |
c4067400 | 467 | static void __devinit velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag, char *name, const char *devname) |
1da177e4 LT |
468 | { |
469 | (*opt) &= (~flag); | |
470 | if (val == -1) | |
471 | *opt |= (def ? flag : 0); | |
472 | else if (val < 0 || val > 1) { | |
6aa20a22 | 473 | printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n", |
1da177e4 LT |
474 | devname, name); |
475 | *opt |= (def ? flag : 0); | |
476 | } else { | |
6aa20a22 | 477 | printk(KERN_INFO "%s: set parameter %s to %s\n", |
1da177e4 LT |
478 | devname, name, val ? "TRUE" : "FALSE"); |
479 | *opt |= (val ? flag : 0); | |
480 | } | |
481 | } | |
482 | ||
483 | /** | |
484 | * velocity_get_options - set options on device | |
485 | * @opts: option structure for the device | |
486 | * @index: index of option to use in module options array | |
487 | * @devname: device name | |
488 | * | |
489 | * Turn the module and command options into a single structure | |
490 | * for the current device | |
491 | */ | |
07b5f6a6 | 492 | static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname) |
1da177e4 LT |
493 | { |
494 | ||
495 | velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname); | |
496 | velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname); | |
497 | velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname); | |
498 | velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname); | |
501e4d24 | 499 | |
1da177e4 LT |
500 | velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname); |
501 | velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname); | |
502 | velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname); | |
503 | velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname); | |
504 | velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname); | |
505 | velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname); | |
506 | velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname); | |
507 | opts->numrx = (opts->numrx & ~3); | |
508 | } | |
509 | ||
510 | /** | |
511 | * velocity_init_cam_filter - initialise CAM | |
512 | * @vptr: velocity to program | |
513 | * | |
514 | * Initialize the content addressable memory used for filters. Load | |
515 | * appropriately according to the presence of VLAN | |
516 | */ | |
1da177e4 LT |
517 | static void velocity_init_cam_filter(struct velocity_info *vptr) |
518 | { | |
c4067400 | 519 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 LT |
520 | |
521 | /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */ | |
522 | WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG); | |
523 | WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG); | |
524 | ||
525 | /* Disable all CAMs */ | |
526 | memset(vptr->vCAMmask, 0, sizeof(u8) * 8); | |
527 | memset(vptr->mCAMmask, 0, sizeof(u8) * 8); | |
01faccbf SH |
528 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
529 | mac_set_cam_mask(regs, vptr->mCAMmask); | |
1da177e4 | 530 | |
d4f73c8e | 531 | /* Enable VCAMs */ |
501e4d24 | 532 | if (vptr->vlgrp) { |
d4f73c8e FR |
533 | unsigned int vid, i = 0; |
534 | ||
535 | if (!vlan_group_get_device(vptr->vlgrp, 0)) | |
536 | WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG); | |
501e4d24 | 537 | |
d4f73c8e FR |
538 | for (vid = 1; (vid < VLAN_VID_MASK); vid++) { |
539 | if (vlan_group_get_device(vptr->vlgrp, vid)) { | |
540 | mac_set_vlan_cam(regs, i, (u8 *) &vid); | |
541 | vptr->vCAMmask[i / 8] |= 0x1 << (i % 8); | |
542 | if (++i >= VCAM_SIZE) | |
543 | break; | |
501e4d24 SH |
544 | } |
545 | } | |
01faccbf | 546 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
1da177e4 LT |
547 | } |
548 | } | |
549 | ||
d4f73c8e FR |
550 | static void velocity_vlan_rx_register(struct net_device *dev, |
551 | struct vlan_group *grp) | |
552 | { | |
553 | struct velocity_info *vptr = netdev_priv(dev); | |
554 | ||
555 | vptr->vlgrp = grp; | |
556 | } | |
557 | ||
501e4d24 SH |
558 | static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
559 | { | |
560 | struct velocity_info *vptr = netdev_priv(dev); | |
561 | ||
c4067400 | 562 | spin_lock_irq(&vptr->lock); |
501e4d24 | 563 | velocity_init_cam_filter(vptr); |
c4067400 | 564 | spin_unlock_irq(&vptr->lock); |
501e4d24 SH |
565 | } |
566 | ||
567 | static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
568 | { | |
569 | struct velocity_info *vptr = netdev_priv(dev); | |
570 | ||
c4067400 | 571 | spin_lock_irq(&vptr->lock); |
501e4d24 SH |
572 | vlan_group_set_device(vptr->vlgrp, vid, NULL); |
573 | velocity_init_cam_filter(vptr); | |
c4067400 | 574 | spin_unlock_irq(&vptr->lock); |
501e4d24 SH |
575 | } |
576 | ||
3c4dc711 FR |
577 | static void velocity_init_rx_ring_indexes(struct velocity_info *vptr) |
578 | { | |
579 | vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0; | |
580 | } | |
501e4d24 | 581 | |
1da177e4 LT |
582 | /** |
583 | * velocity_rx_reset - handle a receive reset | |
584 | * @vptr: velocity we are resetting | |
585 | * | |
586 | * Reset the ownership and status for the receive ring side. | |
587 | * Hand all the receive queue to the NIC. | |
588 | */ | |
1da177e4 LT |
589 | static void velocity_rx_reset(struct velocity_info *vptr) |
590 | { | |
591 | ||
c4067400 | 592 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 LT |
593 | int i; |
594 | ||
3c4dc711 | 595 | velocity_init_rx_ring_indexes(vptr); |
1da177e4 LT |
596 | |
597 | /* | |
598 | * Init state, all RD entries belong to the NIC | |
599 | */ | |
600 | for (i = 0; i < vptr->options.numrx; ++i) | |
0fe9f15e | 601 | vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC; |
1da177e4 LT |
602 | |
603 | writew(vptr->options.numrx, ®s->RBRDU); | |
0fe9f15e | 604 | writel(vptr->rx.pool_dma, ®s->RDBaseLo); |
1da177e4 LT |
605 | writew(0, ®s->RDIdx); |
606 | writew(vptr->options.numrx - 1, ®s->RDCSize); | |
607 | } | |
608 | ||
609 | /** | |
2cf71d2e DJ |
610 | * velocity_get_opt_media_mode - get media selection |
611 | * @vptr: velocity adapter | |
1da177e4 | 612 | * |
2cf71d2e DJ |
613 | * Get the media mode stored in EEPROM or module options and load |
614 | * mii_status accordingly. The requested link state information | |
615 | * is also returned. | |
1da177e4 | 616 | */ |
2cf71d2e | 617 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr) |
1da177e4 | 618 | { |
2cf71d2e | 619 | u32 status = 0; |
1da177e4 | 620 | |
2cf71d2e DJ |
621 | switch (vptr->options.spd_dpx) { |
622 | case SPD_DPX_AUTO: | |
623 | status = VELOCITY_AUTONEG_ENABLE; | |
1da177e4 | 624 | break; |
2cf71d2e DJ |
625 | case SPD_DPX_100_FULL: |
626 | status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL; | |
627 | break; | |
628 | case SPD_DPX_10_FULL: | |
629 | status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL; | |
630 | break; | |
631 | case SPD_DPX_100_HALF: | |
632 | status = VELOCITY_SPEED_100; | |
633 | break; | |
634 | case SPD_DPX_10_HALF: | |
635 | status = VELOCITY_SPEED_10; | |
636 | break; | |
637 | } | |
638 | vptr->mii_status = status; | |
639 | return status; | |
640 | } | |
1da177e4 | 641 | |
2cf71d2e DJ |
642 | /** |
643 | * safe_disable_mii_autopoll - autopoll off | |
644 | * @regs: velocity registers | |
645 | * | |
646 | * Turn off the autopoll and wait for it to disable on the chip | |
647 | */ | |
648 | static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs) | |
649 | { | |
650 | u16 ww; | |
1da177e4 | 651 | |
2cf71d2e DJ |
652 | /* turn off MAUTO */ |
653 | writeb(0, ®s->MIICR); | |
654 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
655 | udelay(1); | |
656 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
657 | break; | |
658 | } | |
659 | } | |
1da177e4 | 660 | |
2cf71d2e DJ |
661 | /** |
662 | * enable_mii_autopoll - turn on autopolling | |
663 | * @regs: velocity registers | |
664 | * | |
665 | * Enable the MII link status autopoll feature on the Velocity | |
666 | * hardware. Wait for it to enable. | |
667 | */ | |
668 | static void enable_mii_autopoll(struct mac_regs __iomem *regs) | |
669 | { | |
670 | int ii; | |
1da177e4 | 671 | |
2cf71d2e DJ |
672 | writeb(0, &(regs->MIICR)); |
673 | writeb(MIIADR_SWMPL, ®s->MIIADR); | |
1da177e4 | 674 | |
2cf71d2e DJ |
675 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
676 | udelay(1); | |
677 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
678 | break; | |
679 | } | |
1da177e4 | 680 | |
2cf71d2e | 681 | writeb(MIICR_MAUTO, ®s->MIICR); |
1da177e4 | 682 | |
2cf71d2e DJ |
683 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
684 | udelay(1); | |
685 | if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
686 | break; | |
687 | } | |
1da177e4 | 688 | |
2cf71d2e | 689 | } |
1da177e4 | 690 | |
2cf71d2e DJ |
691 | /** |
692 | * velocity_mii_read - read MII data | |
693 | * @regs: velocity registers | |
694 | * @index: MII register index | |
695 | * @data: buffer for received data | |
696 | * | |
697 | * Perform a single read of an MII 16bit register. Returns zero | |
698 | * on success or -ETIMEDOUT if the PHY did not respond. | |
699 | */ | |
700 | static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data) | |
701 | { | |
702 | u16 ww; | |
1da177e4 | 703 | |
2cf71d2e DJ |
704 | /* |
705 | * Disable MIICR_MAUTO, so that mii addr can be set normally | |
706 | */ | |
707 | safe_disable_mii_autopoll(regs); | |
1da177e4 | 708 | |
2cf71d2e | 709 | writeb(index, ®s->MIIADR); |
1da177e4 | 710 | |
2cf71d2e | 711 | BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR); |
1da177e4 | 712 | |
2cf71d2e DJ |
713 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
714 | if (!(readb(®s->MIICR) & MIICR_RCMD)) | |
715 | break; | |
716 | } | |
1da177e4 | 717 | |
2cf71d2e | 718 | *data = readw(®s->MIIDATA); |
1da177e4 | 719 | |
2cf71d2e DJ |
720 | enable_mii_autopoll(regs); |
721 | if (ww == W_MAX_TIMEOUT) | |
722 | return -ETIMEDOUT; | |
723 | return 0; | |
1da177e4 LT |
724 | } |
725 | ||
2cf71d2e | 726 | |
1da177e4 | 727 | /** |
2cf71d2e DJ |
728 | * mii_check_media_mode - check media state |
729 | * @regs: velocity registers | |
1da177e4 | 730 | * |
2cf71d2e DJ |
731 | * Check the current MII status and determine the link status |
732 | * accordingly | |
1da177e4 | 733 | */ |
2cf71d2e | 734 | static u32 mii_check_media_mode(struct mac_regs __iomem *regs) |
1da177e4 | 735 | { |
2cf71d2e DJ |
736 | u32 status = 0; |
737 | u16 ANAR; | |
1da177e4 | 738 | |
2cf71d2e DJ |
739 | if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs)) |
740 | status |= VELOCITY_LINK_FAIL; | |
1da177e4 | 741 | |
2cf71d2e DJ |
742 | if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs)) |
743 | status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; | |
744 | else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs)) | |
745 | status |= (VELOCITY_SPEED_1000); | |
746 | else { | |
747 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); | |
748 | if (ANAR & ANAR_TXFD) | |
749 | status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL); | |
750 | else if (ANAR & ANAR_TX) | |
751 | status |= VELOCITY_SPEED_100; | |
752 | else if (ANAR & ANAR_10FD) | |
753 | status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL); | |
754 | else | |
755 | status |= (VELOCITY_SPEED_10); | |
1da177e4 LT |
756 | } |
757 | ||
2cf71d2e DJ |
758 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
759 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); | |
760 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) | |
761 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { | |
762 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) | |
763 | status |= VELOCITY_AUTONEG_ENABLE; | |
764 | } | |
1da177e4 | 765 | } |
1da177e4 | 766 | |
2cf71d2e DJ |
767 | return status; |
768 | } | |
39a11bd9 | 769 | |
1da177e4 | 770 | /** |
2cf71d2e DJ |
771 | * velocity_mii_write - write MII data |
772 | * @regs: velocity registers | |
773 | * @index: MII register index | |
774 | * @data: 16bit data for the MII register | |
1da177e4 | 775 | * |
2cf71d2e DJ |
776 | * Perform a single write to an MII 16bit register. Returns zero |
777 | * on success or -ETIMEDOUT if the PHY did not respond. | |
1da177e4 | 778 | */ |
2cf71d2e | 779 | static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data) |
1da177e4 | 780 | { |
2cf71d2e | 781 | u16 ww; |
1da177e4 | 782 | |
2cf71d2e DJ |
783 | /* |
784 | * Disable MIICR_MAUTO, so that mii addr can be set normally | |
e54f4893 | 785 | */ |
2cf71d2e | 786 | safe_disable_mii_autopoll(regs); |
1da177e4 | 787 | |
2cf71d2e DJ |
788 | /* MII reg offset */ |
789 | writeb(mii_addr, ®s->MIIADR); | |
790 | /* set MII data */ | |
791 | writew(data, ®s->MIIDATA); | |
792 | ||
793 | /* turn on MIICR_WCMD */ | |
794 | BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR); | |
795 | ||
796 | /* W_MAX_TIMEOUT is the timeout period */ | |
797 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
798 | udelay(5); | |
799 | if (!(readb(®s->MIICR) & MIICR_WCMD)) | |
800 | break; | |
1da177e4 | 801 | } |
2cf71d2e | 802 | enable_mii_autopoll(regs); |
6aa20a22 | 803 | |
2cf71d2e DJ |
804 | if (ww == W_MAX_TIMEOUT) |
805 | return -ETIMEDOUT; | |
806 | return 0; | |
807 | } | |
6aa20a22 | 808 | |
2cf71d2e DJ |
809 | /** |
810 | * set_mii_flow_control - flow control setup | |
811 | * @vptr: velocity interface | |
812 | * | |
813 | * Set up the flow control on this interface according to | |
814 | * the supplied user/eeprom options. | |
815 | */ | |
816 | static void set_mii_flow_control(struct velocity_info *vptr) | |
817 | { | |
818 | /*Enable or Disable PAUSE in ANAR */ | |
819 | switch (vptr->options.flow_cntl) { | |
820 | case FLOW_CNTL_TX: | |
821 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
822 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
823 | break; | |
1da177e4 | 824 | |
2cf71d2e DJ |
825 | case FLOW_CNTL_RX: |
826 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
827 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
828 | break; | |
1da177e4 | 829 | |
2cf71d2e DJ |
830 | case FLOW_CNTL_TX_RX: |
831 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
832 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
833 | break; | |
1da177e4 | 834 | |
2cf71d2e DJ |
835 | case FLOW_CNTL_DISABLE: |
836 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
837 | MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
838 | break; | |
839 | default: | |
840 | break; | |
841 | } | |
842 | } | |
1da177e4 | 843 | |
2cf71d2e DJ |
844 | /** |
845 | * mii_set_auto_on - autonegotiate on | |
846 | * @vptr: velocity | |
847 | * | |
848 | * Enable autonegotation on this interface | |
849 | */ | |
850 | static void mii_set_auto_on(struct velocity_info *vptr) | |
851 | { | |
852 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs)) | |
853 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); | |
854 | else | |
855 | MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); | |
856 | } | |
1da177e4 | 857 | |
2cf71d2e DJ |
858 | static u32 check_connection_type(struct mac_regs __iomem *regs) |
859 | { | |
860 | u32 status = 0; | |
861 | u8 PHYSR0; | |
862 | u16 ANAR; | |
863 | PHYSR0 = readb(®s->PHYSR0); | |
1da177e4 | 864 | |
2cf71d2e DJ |
865 | /* |
866 | if (!(PHYSR0 & PHYSR0_LINKGD)) | |
867 | status|=VELOCITY_LINK_FAIL; | |
868 | */ | |
1da177e4 | 869 | |
2cf71d2e DJ |
870 | if (PHYSR0 & PHYSR0_FDPX) |
871 | status |= VELOCITY_DUPLEX_FULL; | |
1da177e4 | 872 | |
2cf71d2e DJ |
873 | if (PHYSR0 & PHYSR0_SPDG) |
874 | status |= VELOCITY_SPEED_1000; | |
875 | else if (PHYSR0 & PHYSR0_SPD10) | |
876 | status |= VELOCITY_SPEED_10; | |
877 | else | |
878 | status |= VELOCITY_SPEED_100; | |
1da177e4 | 879 | |
2cf71d2e DJ |
880 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
881 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); | |
882 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) | |
883 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { | |
884 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) | |
885 | status |= VELOCITY_AUTONEG_ENABLE; | |
886 | } | |
1da177e4 LT |
887 | } |
888 | ||
2cf71d2e DJ |
889 | return status; |
890 | } | |
1da177e4 | 891 | |
1da177e4 | 892 | |
1da177e4 | 893 | |
2cf71d2e DJ |
894 | /** |
895 | * velocity_set_media_mode - set media mode | |
896 | * @mii_status: old MII link state | |
897 | * | |
898 | * Check the media link state and configure the flow control | |
899 | * PHY and also velocity hardware setup accordingly. In particular | |
900 | * we need to set up CD polling and frame bursting. | |
901 | */ | |
902 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) | |
903 | { | |
904 | u32 curr_status; | |
905 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1da177e4 | 906 | |
2cf71d2e DJ |
907 | vptr->mii_status = mii_check_media_mode(vptr->mac_regs); |
908 | curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL); | |
07b5f6a6 | 909 | |
2cf71d2e DJ |
910 | /* Set mii link status */ |
911 | set_mii_flow_control(vptr); | |
1da177e4 | 912 | |
6aa20a22 | 913 | /* |
2cf71d2e DJ |
914 | Check if new status is consisent with current status |
915 | if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) | |
916 | || (mii_status==curr_status)) { | |
917 | vptr->mii_status=mii_check_media_mode(vptr->mac_regs); | |
918 | vptr->mii_status=check_connection_type(vptr->mac_regs); | |
919 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); | |
920 | return 0; | |
921 | } | |
1da177e4 | 922 | */ |
6aa20a22 | 923 | |
2cf71d2e DJ |
924 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) |
925 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); | |
1da177e4 LT |
926 | |
927 | /* | |
2cf71d2e | 928 | * If connection type is AUTO |
1da177e4 | 929 | */ |
2cf71d2e DJ |
930 | if (mii_status & VELOCITY_AUTONEG_ENABLE) { |
931 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n"); | |
932 | /* clear force MAC mode bit */ | |
933 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
934 | /* set duplex mode of MAC according to duplex mode of MII */ | |
935 | MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs); | |
936 | MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); | |
937 | MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); | |
6aa20a22 | 938 | |
2cf71d2e DJ |
939 | /* enable AUTO-NEGO mode */ |
940 | mii_set_auto_on(vptr); | |
941 | } else { | |
942 | u16 ANAR; | |
943 | u8 CHIPGCR; | |
1da177e4 | 944 | |
2cf71d2e DJ |
945 | /* |
946 | * 1. if it's 3119, disable frame bursting in halfduplex mode | |
947 | * and enable it in fullduplex mode | |
948 | * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR | |
949 | * 3. only enable CD heart beat counter in 10HD mode | |
950 | */ | |
1da177e4 | 951 | |
2cf71d2e DJ |
952 | /* set force MAC mode bit */ |
953 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
1da177e4 | 954 | |
2cf71d2e DJ |
955 | CHIPGCR = readb(®s->CHIPGCR); |
956 | CHIPGCR &= ~CHIPGCR_FCGMII; | |
501e4d24 | 957 | |
2cf71d2e DJ |
958 | if (mii_status & VELOCITY_DUPLEX_FULL) { |
959 | CHIPGCR |= CHIPGCR_FCFDX; | |
960 | writeb(CHIPGCR, ®s->CHIPGCR); | |
961 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n"); | |
962 | if (vptr->rev_id < REV_ID_VT3216_A0) | |
963 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); | |
964 | } else { | |
965 | CHIPGCR &= ~CHIPGCR_FCFDX; | |
966 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n"); | |
967 | writeb(CHIPGCR, ®s->CHIPGCR); | |
968 | if (vptr->rev_id < REV_ID_VT3216_A0) | |
969 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); | |
970 | } | |
1da177e4 | 971 | |
2cf71d2e | 972 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
1da177e4 | 973 | |
2cf71d2e DJ |
974 | if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) |
975 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); | |
976 | else | |
977 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); | |
1da177e4 | 978 | |
2cf71d2e DJ |
979 | /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */ |
980 | velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR); | |
981 | ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)); | |
982 | if (mii_status & VELOCITY_SPEED_100) { | |
983 | if (mii_status & VELOCITY_DUPLEX_FULL) | |
984 | ANAR |= ANAR_TXFD; | |
985 | else | |
986 | ANAR |= ANAR_TX; | |
987 | } else { | |
988 | if (mii_status & VELOCITY_DUPLEX_FULL) | |
989 | ANAR |= ANAR_10FD; | |
990 | else | |
991 | ANAR |= ANAR_10; | |
992 | } | |
993 | velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR); | |
994 | /* enable AUTO-NEGO mode */ | |
995 | mii_set_auto_on(vptr); | |
996 | /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */ | |
d3b238a0 | 997 | } |
2cf71d2e DJ |
998 | /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */ |
999 | /* vptr->mii_status=check_connection_type(vptr->mac_regs); */ | |
1000 | return VELOCITY_LINK_CHANGE; | |
1001 | } | |
8a22dddb | 1002 | |
2cf71d2e DJ |
1003 | /** |
1004 | * velocity_print_link_status - link status reporting | |
1005 | * @vptr: velocity to report on | |
1006 | * | |
1007 | * Turn the link status of the velocity card into a kernel log | |
1008 | * description of the new link state, detailing speed and duplex | |
1009 | * status | |
1010 | */ | |
1011 | static void velocity_print_link_status(struct velocity_info *vptr) | |
1012 | { | |
6aa20a22 | 1013 | |
2cf71d2e DJ |
1014 | if (vptr->mii_status & VELOCITY_LINK_FAIL) { |
1015 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name); | |
1016 | } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) { | |
1017 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name); | |
6aa20a22 | 1018 | |
2cf71d2e DJ |
1019 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
1020 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps"); | |
1021 | else if (vptr->mii_status & VELOCITY_SPEED_100) | |
1022 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps"); | |
1023 | else | |
1024 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps"); | |
1da177e4 | 1025 | |
2cf71d2e DJ |
1026 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
1027 | VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n"); | |
1028 | else | |
1029 | VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n"); | |
1030 | } else { | |
1031 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name); | |
1032 | switch (vptr->options.spd_dpx) { | |
1033 | case SPD_DPX_100_HALF: | |
1034 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n"); | |
1035 | break; | |
1036 | case SPD_DPX_100_FULL: | |
1037 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n"); | |
1038 | break; | |
1039 | case SPD_DPX_10_HALF: | |
1040 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n"); | |
1041 | break; | |
1042 | case SPD_DPX_10_FULL: | |
1043 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n"); | |
1044 | break; | |
1045 | default: | |
1046 | break; | |
1047 | } | |
1da177e4 | 1048 | } |
1da177e4 LT |
1049 | } |
1050 | ||
1051 | /** | |
2cf71d2e DJ |
1052 | * enable_flow_control_ability - flow control |
1053 | * @vptr: veloity to configure | |
1da177e4 | 1054 | * |
2cf71d2e DJ |
1055 | * Set up flow control according to the flow control options |
1056 | * determined by the eeprom/configuration. | |
1da177e4 | 1057 | */ |
2cf71d2e | 1058 | static void enable_flow_control_ability(struct velocity_info *vptr) |
1da177e4 | 1059 | { |
1da177e4 | 1060 | |
2cf71d2e | 1061 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 | 1062 | |
2cf71d2e | 1063 | switch (vptr->options.flow_cntl) { |
1da177e4 | 1064 | |
2cf71d2e DJ |
1065 | case FLOW_CNTL_DEFAULT: |
1066 | if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0)) | |
1067 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
1068 | else | |
1069 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
1070 | ||
1071 | if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0)) | |
1072 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
1073 | else | |
1074 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
1075 | break; | |
1076 | ||
1077 | case FLOW_CNTL_TX: | |
1078 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
1079 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
1080 | break; | |
1081 | ||
1082 | case FLOW_CNTL_RX: | |
1083 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
1084 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
1085 | break; | |
1086 | ||
1087 | case FLOW_CNTL_TX_RX: | |
1088 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
1089 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
1090 | break; | |
1091 | ||
1092 | case FLOW_CNTL_DISABLE: | |
1093 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
1094 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
1095 | break; | |
1096 | ||
1097 | default: | |
1098 | break; | |
1099 | } | |
1da177e4 | 1100 | |
1da177e4 LT |
1101 | } |
1102 | ||
1103 | /** | |
2cf71d2e DJ |
1104 | * velocity_soft_reset - soft reset |
1105 | * @vptr: velocity to reset | |
1da177e4 | 1106 | * |
2cf71d2e DJ |
1107 | * Kick off a soft reset of the velocity adapter and then poll |
1108 | * until the reset sequence has completed before returning. | |
1da177e4 | 1109 | */ |
2cf71d2e | 1110 | static int velocity_soft_reset(struct velocity_info *vptr) |
1da177e4 | 1111 | { |
2cf71d2e DJ |
1112 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1113 | int i = 0; | |
6aa20a22 | 1114 | |
2cf71d2e | 1115 | writel(CR0_SFRST, ®s->CR0Set); |
1da177e4 | 1116 | |
2cf71d2e DJ |
1117 | for (i = 0; i < W_MAX_TIMEOUT; i++) { |
1118 | udelay(5); | |
1119 | if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set)) | |
1120 | break; | |
1da177e4 LT |
1121 | } |
1122 | ||
2cf71d2e DJ |
1123 | if (i == W_MAX_TIMEOUT) { |
1124 | writel(CR0_FORSRST, ®s->CR0Set); | |
1125 | /* FIXME: PCI POSTING */ | |
1126 | /* delay 2ms */ | |
1127 | mdelay(2); | |
1da177e4 | 1128 | } |
1da177e4 LT |
1129 | return 0; |
1130 | } | |
1131 | ||
1132 | /** | |
2cf71d2e DJ |
1133 | * velocity_set_multi - filter list change callback |
1134 | * @dev: network device | |
1da177e4 | 1135 | * |
2cf71d2e DJ |
1136 | * Called by the network layer when the filter lists need to change |
1137 | * for a velocity adapter. Reload the CAMs with the new address | |
1138 | * filter ruleset. | |
1da177e4 | 1139 | */ |
2cf71d2e | 1140 | static void velocity_set_multi(struct net_device *dev) |
1da177e4 | 1141 | { |
2cf71d2e | 1142 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 1143 | struct mac_regs __iomem *regs = vptr->mac_regs; |
2cf71d2e DJ |
1144 | u8 rx_mode; |
1145 | int i; | |
1146 | struct dev_mc_list *mclist; | |
1da177e4 | 1147 | |
2cf71d2e DJ |
1148 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ |
1149 | writel(0xffffffff, ®s->MARCAM[0]); | |
1150 | writel(0xffffffff, ®s->MARCAM[4]); | |
1151 | rx_mode = (RCR_AM | RCR_AB | RCR_PROM); | |
1152 | } else if ((dev->mc_count > vptr->multicast_limit) | |
1153 | || (dev->flags & IFF_ALLMULTI)) { | |
1154 | writel(0xffffffff, ®s->MARCAM[0]); | |
1155 | writel(0xffffffff, ®s->MARCAM[4]); | |
1156 | rx_mode = (RCR_AM | RCR_AB); | |
1157 | } else { | |
1158 | int offset = MCAM_SIZE - vptr->multicast_limit; | |
1159 | mac_get_cam_mask(regs, vptr->mCAMmask); | |
1da177e4 | 1160 | |
2cf71d2e DJ |
1161 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) { |
1162 | mac_set_cam(regs, i + offset, mclist->dmi_addr); | |
1163 | vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7); | |
1da177e4 | 1164 | } |
1da177e4 | 1165 | |
2cf71d2e DJ |
1166 | mac_set_cam_mask(regs, vptr->mCAMmask); |
1167 | rx_mode = RCR_AM | RCR_AB | RCR_AP; | |
1da177e4 | 1168 | } |
2cf71d2e DJ |
1169 | if (dev->mtu > 1500) |
1170 | rx_mode |= RCR_AL; | |
1da177e4 | 1171 | |
2cf71d2e | 1172 | BYTE_REG_BITS_ON(rx_mode, ®s->RCR); |
1da177e4 | 1173 | |
9088d9a4 FR |
1174 | } |
1175 | ||
2cf71d2e DJ |
1176 | /* |
1177 | * MII access , media link mode setting functions | |
1da177e4 LT |
1178 | */ |
1179 | ||
1da177e4 | 1180 | /** |
2cf71d2e DJ |
1181 | * mii_init - set up MII |
1182 | * @vptr: velocity adapter | |
1183 | * @mii_status: links tatus | |
1da177e4 | 1184 | * |
2cf71d2e | 1185 | * Set up the PHY for the current link state. |
1da177e4 | 1186 | */ |
2cf71d2e | 1187 | static void mii_init(struct velocity_info *vptr, u32 mii_status) |
1da177e4 | 1188 | { |
2cf71d2e | 1189 | u16 BMCR; |
1da177e4 | 1190 | |
2cf71d2e DJ |
1191 | switch (PHYID_GET_PHY_ID(vptr->phy_id)) { |
1192 | case PHYID_CICADA_CS8201: | |
1193 | /* | |
1194 | * Reset to hardware default | |
1195 | */ | |
1196 | MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); | |
1197 | /* | |
1198 | * Turn on ECHODIS bit in NWay-forced full mode and turn it | |
1199 | * off it in NWay-forced half mode for NWay-forced v.s. | |
1200 | * legacy-forced issue. | |
1201 | */ | |
1202 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
1203 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
1204 | else | |
1205 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
1206 | /* | |
1207 | * Turn on Link/Activity LED enable bit for CIS8201 | |
1208 | */ | |
1209 | MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs); | |
1210 | break; | |
1211 | case PHYID_VT3216_32BIT: | |
1212 | case PHYID_VT3216_64BIT: | |
1213 | /* | |
1214 | * Reset to hardware default | |
1215 | */ | |
1216 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); | |
1217 | /* | |
1218 | * Turn on ECHODIS bit in NWay-forced full mode and turn it | |
1219 | * off it in NWay-forced half mode for NWay-forced v.s. | |
1220 | * legacy-forced issue | |
1221 | */ | |
1222 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
1223 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
1224 | else | |
1225 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
1226 | break; | |
1da177e4 | 1227 | |
2cf71d2e DJ |
1228 | case PHYID_MARVELL_1000: |
1229 | case PHYID_MARVELL_1000S: | |
1230 | /* | |
1231 | * Assert CRS on Transmit | |
1232 | */ | |
1233 | MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs); | |
1234 | /* | |
1235 | * Reset to hardware default | |
1236 | */ | |
1237 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); | |
1238 | break; | |
1239 | default: | |
1240 | ; | |
1241 | } | |
1242 | velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR); | |
1243 | if (BMCR & BMCR_ISO) { | |
1244 | BMCR &= ~BMCR_ISO; | |
1245 | velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR); | |
1da177e4 | 1246 | } |
1da177e4 LT |
1247 | } |
1248 | ||
2cf71d2e | 1249 | |
1da177e4 | 1250 | /** |
2cf71d2e DJ |
1251 | * velocity_init_registers - initialise MAC registers |
1252 | * @vptr: velocity to init | |
1253 | * @type: type of initialisation (hot or cold) | |
1da177e4 | 1254 | * |
2cf71d2e DJ |
1255 | * Initialise the MAC on a reset or on first set up on the |
1256 | * hardware. | |
1da177e4 | 1257 | */ |
2cf71d2e DJ |
1258 | static void velocity_init_registers(struct velocity_info *vptr, |
1259 | enum velocity_init_type type) | |
1da177e4 | 1260 | { |
2cf71d2e DJ |
1261 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1262 | int i, mii_status; | |
1da177e4 | 1263 | |
2cf71d2e | 1264 | mac_wol_reset(regs); |
1da177e4 | 1265 | |
2cf71d2e DJ |
1266 | switch (type) { |
1267 | case VELOCITY_INIT_RESET: | |
1268 | case VELOCITY_INIT_WOL: | |
1da177e4 | 1269 | |
2cf71d2e | 1270 | netif_stop_queue(vptr->dev); |
6aa20a22 | 1271 | |
2cf71d2e DJ |
1272 | /* |
1273 | * Reset RX to prevent RX pointer not on the 4X location | |
1274 | */ | |
1275 | velocity_rx_reset(vptr); | |
1276 | mac_rx_queue_run(regs); | |
1277 | mac_rx_queue_wake(regs); | |
6aa20a22 | 1278 | |
2cf71d2e DJ |
1279 | mii_status = velocity_get_opt_media_mode(vptr); |
1280 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { | |
1281 | velocity_print_link_status(vptr); | |
1282 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) | |
1283 | netif_wake_queue(vptr->dev); | |
1da177e4 | 1284 | } |
1da177e4 | 1285 | |
2cf71d2e | 1286 | enable_flow_control_ability(vptr); |
1da177e4 | 1287 | |
2cf71d2e DJ |
1288 | mac_clear_isr(regs); |
1289 | writel(CR0_STOP, ®s->CR0Clr); | |
1290 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), | |
1291 | ®s->CR0Set); | |
6aa20a22 | 1292 | |
2cf71d2e | 1293 | break; |
1da177e4 | 1294 | |
2cf71d2e DJ |
1295 | case VELOCITY_INIT_COLD: |
1296 | default: | |
1297 | /* | |
1298 | * Do reset | |
1299 | */ | |
1300 | velocity_soft_reset(vptr); | |
1301 | mdelay(5); | |
1da177e4 | 1302 | |
2cf71d2e DJ |
1303 | mac_eeprom_reload(regs); |
1304 | for (i = 0; i < 6; i++) | |
1305 | writeb(vptr->dev->dev_addr[i], &(regs->PAR[i])); | |
1da177e4 | 1306 | |
2cf71d2e DJ |
1307 | /* |
1308 | * clear Pre_ACPI bit. | |
1309 | */ | |
1310 | BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA)); | |
1311 | mac_set_rx_thresh(regs, vptr->options.rx_thresh); | |
1312 | mac_set_dma_length(regs, vptr->options.DMA_length); | |
1da177e4 | 1313 | |
2cf71d2e DJ |
1314 | writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet); |
1315 | /* | |
1316 | * Back off algorithm use original IEEE standard | |
1317 | */ | |
1318 | BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB); | |
1da177e4 LT |
1319 | |
1320 | /* | |
2cf71d2e | 1321 | * Init CAM filter |
1da177e4 | 1322 | */ |
2cf71d2e | 1323 | velocity_init_cam_filter(vptr); |
1da177e4 | 1324 | |
2cf71d2e DJ |
1325 | /* |
1326 | * Set packet filter: Receive directed and broadcast address | |
1327 | */ | |
1328 | velocity_set_multi(vptr->dev); | |
1da177e4 | 1329 | |
2cf71d2e DJ |
1330 | /* |
1331 | * Enable MII auto-polling | |
1332 | */ | |
1333 | enable_mii_autopoll(regs); | |
1da177e4 | 1334 | |
2cf71d2e | 1335 | vptr->int_mask = INT_MASK_DEF; |
1da177e4 | 1336 | |
2cf71d2e DJ |
1337 | writel(vptr->rx.pool_dma, ®s->RDBaseLo); |
1338 | writew(vptr->options.numrx - 1, ®s->RDCSize); | |
1339 | mac_rx_queue_run(regs); | |
1340 | mac_rx_queue_wake(regs); | |
1da177e4 | 1341 | |
2cf71d2e | 1342 | writew(vptr->options.numtx - 1, ®s->TDCSize); |
1da177e4 | 1343 | |
2cf71d2e DJ |
1344 | for (i = 0; i < vptr->tx.numq; i++) { |
1345 | writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]); | |
1346 | mac_tx_queue_run(regs, i); | |
1347 | } | |
1da177e4 | 1348 | |
2cf71d2e | 1349 | init_flow_control_register(vptr); |
6aa20a22 | 1350 | |
2cf71d2e DJ |
1351 | writel(CR0_STOP, ®s->CR0Clr); |
1352 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set); | |
1da177e4 | 1353 | |
2cf71d2e DJ |
1354 | mii_status = velocity_get_opt_media_mode(vptr); |
1355 | netif_stop_queue(vptr->dev); | |
1da177e4 | 1356 | |
2cf71d2e | 1357 | mii_init(vptr, mii_status); |
1da177e4 | 1358 | |
2cf71d2e DJ |
1359 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { |
1360 | velocity_print_link_status(vptr); | |
1361 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) | |
1362 | netif_wake_queue(vptr->dev); | |
1da177e4 | 1363 | } |
6aa20a22 | 1364 | |
2cf71d2e DJ |
1365 | enable_flow_control_ability(vptr); |
1366 | mac_hw_mibs_init(regs); | |
1367 | mac_write_int_mask(vptr->int_mask, regs); | |
1368 | mac_clear_isr(regs); | |
1369 | ||
1da177e4 | 1370 | } |
1da177e4 LT |
1371 | } |
1372 | ||
2cf71d2e | 1373 | static void velocity_give_many_rx_descs(struct velocity_info *vptr) |
1da177e4 | 1374 | { |
2cf71d2e DJ |
1375 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1376 | int avail, dirty, unusable; | |
1377 | ||
1378 | /* | |
1379 | * RD number must be equal to 4X per hardware spec | |
1380 | * (programming guide rev 1.20, p.13) | |
1381 | */ | |
1382 | if (vptr->rx.filled < 4) | |
1383 | return; | |
1384 | ||
1385 | wmb(); | |
1386 | ||
1387 | unusable = vptr->rx.filled & 0x0003; | |
1388 | dirty = vptr->rx.dirty - unusable; | |
1389 | for (avail = vptr->rx.filled & 0xfffc; avail; avail--) { | |
1390 | dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1; | |
1391 | vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC; | |
1da177e4 | 1392 | } |
2cf71d2e DJ |
1393 | |
1394 | writew(vptr->rx.filled & 0xfffc, ®s->RBRDU); | |
1395 | vptr->rx.filled = unusable; | |
1da177e4 LT |
1396 | } |
1397 | ||
1398 | /** | |
2cf71d2e DJ |
1399 | * velocity_init_dma_rings - set up DMA rings |
1400 | * @vptr: Velocity to set up | |
6aa20a22 | 1401 | * |
2cf71d2e DJ |
1402 | * Allocate PCI mapped DMA rings for the receive and transmit layer |
1403 | * to use. | |
1da177e4 | 1404 | */ |
2cf71d2e | 1405 | static int velocity_init_dma_rings(struct velocity_info *vptr) |
1da177e4 | 1406 | { |
2cf71d2e DJ |
1407 | struct velocity_opt *opt = &vptr->options; |
1408 | const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc); | |
1409 | const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc); | |
1410 | struct pci_dev *pdev = vptr->pdev; | |
1411 | dma_addr_t pool_dma; | |
1412 | void *pool; | |
1413 | unsigned int i; | |
1da177e4 LT |
1414 | |
1415 | /* | |
2cf71d2e DJ |
1416 | * Allocate all RD/TD rings a single pool. |
1417 | * | |
1418 | * pci_alloc_consistent() fulfills the requirement for 64 bytes | |
1419 | * alignment | |
1da177e4 | 1420 | */ |
2cf71d2e DJ |
1421 | pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq + |
1422 | rx_ring_size, &pool_dma); | |
1423 | if (!pool) { | |
1424 | dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n", | |
1425 | vptr->dev->name); | |
1426 | return -ENOMEM; | |
1da177e4 LT |
1427 | } |
1428 | ||
2cf71d2e DJ |
1429 | vptr->rx.ring = pool; |
1430 | vptr->rx.pool_dma = pool_dma; | |
1da177e4 | 1431 | |
2cf71d2e DJ |
1432 | pool += rx_ring_size; |
1433 | pool_dma += rx_ring_size; | |
d4f73c8e | 1434 | |
2cf71d2e DJ |
1435 | for (i = 0; i < vptr->tx.numq; i++) { |
1436 | vptr->tx.rings[i] = pool; | |
1437 | vptr->tx.pool_dma[i] = pool_dma; | |
1438 | pool += tx_ring_size; | |
1439 | pool_dma += tx_ring_size; | |
1440 | } | |
1da177e4 LT |
1441 | |
1442 | return 0; | |
1443 | } | |
1444 | ||
2cf71d2e DJ |
1445 | static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu) |
1446 | { | |
1447 | vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32; | |
1448 | } | |
1449 | ||
1da177e4 LT |
1450 | /** |
1451 | * velocity_alloc_rx_buf - allocate aligned receive buffer | |
1452 | * @vptr: velocity | |
1453 | * @idx: ring index | |
1454 | * | |
1455 | * Allocate a new full sized buffer for the reception of a frame and | |
1456 | * map it into PCI space for the hardware to use. The hardware | |
1457 | * requires *64* byte alignment of the buffer which makes life | |
1458 | * less fun than would be ideal. | |
1459 | */ | |
1da177e4 LT |
1460 | static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) |
1461 | { | |
0fe9f15e FR |
1462 | struct rx_desc *rd = &(vptr->rx.ring[idx]); |
1463 | struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); | |
1da177e4 | 1464 | |
0fe9f15e | 1465 | rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64); |
1da177e4 LT |
1466 | if (rd_info->skb == NULL) |
1467 | return -ENOMEM; | |
1468 | ||
1469 | /* | |
1470 | * Do the gymnastics to get the buffer head for data at | |
1471 | * 64byte alignment. | |
1472 | */ | |
689be439 | 1473 | skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63); |
0fe9f15e FR |
1474 | rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, |
1475 | vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); | |
6aa20a22 | 1476 | |
1da177e4 LT |
1477 | /* |
1478 | * Fill in the descriptor to match | |
0fe9f15e | 1479 | */ |
6aa20a22 | 1480 | |
1da177e4 | 1481 | *((u32 *) & (rd->rdesc0)) = 0; |
0fe9f15e | 1482 | rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN; |
1da177e4 LT |
1483 | rd->pa_low = cpu_to_le32(rd_info->skb_dma); |
1484 | rd->pa_high = 0; | |
1485 | return 0; | |
1486 | } | |
1487 | ||
6aa20a22 | 1488 | |
2cf71d2e | 1489 | static int velocity_rx_refill(struct velocity_info *vptr) |
1da177e4 | 1490 | { |
2cf71d2e | 1491 | int dirty = vptr->rx.dirty, done = 0; |
1da177e4 | 1492 | |
2cf71d2e DJ |
1493 | do { |
1494 | struct rx_desc *rd = vptr->rx.ring + dirty; | |
1da177e4 | 1495 | |
2cf71d2e DJ |
1496 | /* Fine for an all zero Rx desc at init time as well */ |
1497 | if (rd->rdesc0.len & OWNED_BY_NIC) | |
1498 | break; | |
1da177e4 | 1499 | |
2cf71d2e DJ |
1500 | if (!vptr->rx.info[dirty].skb) { |
1501 | if (velocity_alloc_rx_buf(vptr, dirty) < 0) | |
1da177e4 | 1502 | break; |
1da177e4 | 1503 | } |
2cf71d2e DJ |
1504 | done++; |
1505 | dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0; | |
1506 | } while (dirty != vptr->rx.curr); | |
1da177e4 | 1507 | |
2cf71d2e DJ |
1508 | if (done) { |
1509 | vptr->rx.dirty = dirty; | |
1510 | vptr->rx.filled += done; | |
1da177e4 | 1511 | } |
2cf71d2e DJ |
1512 | |
1513 | return done; | |
1da177e4 LT |
1514 | } |
1515 | ||
1516 | /** | |
2cf71d2e DJ |
1517 | * velocity_free_rd_ring - free receive ring |
1518 | * @vptr: velocity to clean up | |
1da177e4 | 1519 | * |
2cf71d2e DJ |
1520 | * Free the receive buffers for each ring slot and any |
1521 | * attached socket buffers that need to go away. | |
1da177e4 | 1522 | */ |
2cf71d2e | 1523 | static void velocity_free_rd_ring(struct velocity_info *vptr) |
1da177e4 | 1524 | { |
2cf71d2e | 1525 | int i; |
1da177e4 | 1526 | |
2cf71d2e DJ |
1527 | if (vptr->rx.info == NULL) |
1528 | return; | |
6aa20a22 | 1529 | |
2cf71d2e DJ |
1530 | for (i = 0; i < vptr->options.numrx; i++) { |
1531 | struct velocity_rd_info *rd_info = &(vptr->rx.info[i]); | |
1532 | struct rx_desc *rd = vptr->rx.ring + i; | |
1da177e4 | 1533 | |
2cf71d2e | 1534 | memset(rd, 0, sizeof(*rd)); |
1da177e4 | 1535 | |
2cf71d2e DJ |
1536 | if (!rd_info->skb) |
1537 | continue; | |
1538 | pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, | |
1539 | PCI_DMA_FROMDEVICE); | |
1540 | rd_info->skb_dma = 0; | |
6aa20a22 | 1541 | |
2cf71d2e DJ |
1542 | dev_kfree_skb(rd_info->skb); |
1543 | rd_info->skb = NULL; | |
1da177e4 LT |
1544 | } |
1545 | ||
2cf71d2e DJ |
1546 | kfree(vptr->rx.info); |
1547 | vptr->rx.info = NULL; | |
1548 | } | |
1da177e4 | 1549 | |
1da177e4 | 1550 | |
1da177e4 | 1551 | |
2cf71d2e DJ |
1552 | /** |
1553 | * velocity_init_rd_ring - set up receive ring | |
1554 | * @vptr: velocity to configure | |
1555 | * | |
1556 | * Allocate and set up the receive buffers for each ring slot and | |
1557 | * assign them to the network adapter. | |
1558 | */ | |
1559 | static int velocity_init_rd_ring(struct velocity_info *vptr) | |
1560 | { | |
1561 | int ret = -ENOMEM; | |
1da177e4 | 1562 | |
2cf71d2e DJ |
1563 | vptr->rx.info = kcalloc(vptr->options.numrx, |
1564 | sizeof(struct velocity_rd_info), GFP_KERNEL); | |
1565 | if (!vptr->rx.info) | |
1566 | goto out; | |
6aa20a22 | 1567 | |
2cf71d2e | 1568 | velocity_init_rx_ring_indexes(vptr); |
1da177e4 | 1569 | |
2cf71d2e DJ |
1570 | if (velocity_rx_refill(vptr) != vptr->options.numrx) { |
1571 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR | |
1572 | "%s: failed to allocate RX buffer.\n", vptr->dev->name); | |
1573 | velocity_free_rd_ring(vptr); | |
1574 | goto out; | |
1575 | } | |
1da177e4 | 1576 | |
2cf71d2e DJ |
1577 | ret = 0; |
1578 | out: | |
1579 | return ret; | |
1da177e4 LT |
1580 | } |
1581 | ||
1582 | /** | |
2cf71d2e DJ |
1583 | * velocity_init_td_ring - set up transmit ring |
1584 | * @vptr: velocity | |
1da177e4 | 1585 | * |
2cf71d2e DJ |
1586 | * Set up the transmit ring and chain the ring pointers together. |
1587 | * Returns zero on success or a negative posix errno code for | |
1588 | * failure. | |
1da177e4 | 1589 | */ |
2cf71d2e | 1590 | static int velocity_init_td_ring(struct velocity_info *vptr) |
1da177e4 | 1591 | { |
2cf71d2e DJ |
1592 | dma_addr_t curr; |
1593 | int j; | |
1da177e4 | 1594 | |
2cf71d2e DJ |
1595 | /* Init the TD ring entries */ |
1596 | for (j = 0; j < vptr->tx.numq; j++) { | |
1597 | curr = vptr->tx.pool_dma[j]; | |
1da177e4 | 1598 | |
2cf71d2e DJ |
1599 | vptr->tx.infos[j] = kcalloc(vptr->options.numtx, |
1600 | sizeof(struct velocity_td_info), | |
1601 | GFP_KERNEL); | |
1602 | if (!vptr->tx.infos[j]) { | |
1603 | while (--j >= 0) | |
1604 | kfree(vptr->tx.infos[j]); | |
1605 | return -ENOMEM; | |
1da177e4 | 1606 | } |
2cf71d2e DJ |
1607 | |
1608 | vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0; | |
1da177e4 | 1609 | } |
2cf71d2e DJ |
1610 | return 0; |
1611 | } | |
1612 | ||
1613 | /** | |
1614 | * velocity_free_dma_rings - free PCI ring pointers | |
1615 | * @vptr: Velocity to free from | |
1616 | * | |
1617 | * Clean up the PCI ring buffers allocated to this velocity. | |
1618 | */ | |
1619 | static void velocity_free_dma_rings(struct velocity_info *vptr) | |
1620 | { | |
1621 | const int size = vptr->options.numrx * sizeof(struct rx_desc) + | |
1622 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq; | |
1623 | ||
1624 | pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma); | |
1da177e4 LT |
1625 | } |
1626 | ||
2cf71d2e | 1627 | |
3c4dc711 FR |
1628 | static int velocity_init_rings(struct velocity_info *vptr, int mtu) |
1629 | { | |
1630 | int ret; | |
1631 | ||
1632 | velocity_set_rxbufsize(vptr, mtu); | |
1633 | ||
1634 | ret = velocity_init_dma_rings(vptr); | |
1635 | if (ret < 0) | |
1636 | goto out; | |
1637 | ||
1638 | ret = velocity_init_rd_ring(vptr); | |
1639 | if (ret < 0) | |
1640 | goto err_free_dma_rings_0; | |
1641 | ||
1642 | ret = velocity_init_td_ring(vptr); | |
1643 | if (ret < 0) | |
1644 | goto err_free_rd_ring_1; | |
1645 | out: | |
1646 | return ret; | |
1647 | ||
1648 | err_free_rd_ring_1: | |
1649 | velocity_free_rd_ring(vptr); | |
1650 | err_free_dma_rings_0: | |
1651 | velocity_free_dma_rings(vptr); | |
1652 | goto out; | |
1653 | } | |
1654 | ||
1da177e4 | 1655 | /** |
2cf71d2e DJ |
1656 | * velocity_free_tx_buf - free transmit buffer |
1657 | * @vptr: velocity | |
1658 | * @tdinfo: buffer | |
1da177e4 | 1659 | * |
2cf71d2e DJ |
1660 | * Release an transmit buffer. If the buffer was preallocated then |
1661 | * recycle it, if not then unmap the buffer. | |
1da177e4 | 1662 | */ |
2cf71d2e | 1663 | static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo) |
1da177e4 | 1664 | { |
2cf71d2e DJ |
1665 | struct sk_buff *skb = tdinfo->skb; |
1666 | int i; | |
1667 | int pktlen; | |
28133176 | 1668 | |
2cf71d2e DJ |
1669 | /* |
1670 | * Don't unmap the pre-allocated tx_bufs | |
1671 | */ | |
1672 | if (tdinfo->skb_dma) { | |
1da177e4 | 1673 | |
2cf71d2e DJ |
1674 | pktlen = max_t(unsigned int, skb->len, ETH_ZLEN); |
1675 | for (i = 0; i < tdinfo->nskb_dma; i++) { | |
1676 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], pktlen, PCI_DMA_TODEVICE); | |
1677 | tdinfo->skb_dma[i] = 0; | |
1678 | } | |
1da177e4 | 1679 | } |
2cf71d2e DJ |
1680 | dev_kfree_skb_irq(skb); |
1681 | tdinfo->skb = NULL; | |
1da177e4 LT |
1682 | } |
1683 | ||
6aa20a22 | 1684 | |
2cf71d2e DJ |
1685 | /* |
1686 | * FIXME: could we merge this with velocity_free_tx_buf ? | |
1687 | */ | |
1688 | static void velocity_free_td_ring_entry(struct velocity_info *vptr, | |
1689 | int q, int n) | |
1da177e4 | 1690 | { |
2cf71d2e DJ |
1691 | struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]); |
1692 | int i; | |
bd7b3f34 | 1693 | |
2cf71d2e DJ |
1694 | if (td_info == NULL) |
1695 | return; | |
3c4dc711 | 1696 | |
2cf71d2e DJ |
1697 | if (td_info->skb) { |
1698 | for (i = 0; i < td_info->nskb_dma; i++) { | |
1699 | if (td_info->skb_dma[i]) { | |
1700 | pci_unmap_single(vptr->pdev, td_info->skb_dma[i], | |
1701 | td_info->skb->len, PCI_DMA_TODEVICE); | |
1702 | td_info->skb_dma[i] = 0; | |
1703 | } | |
3c4dc711 | 1704 | } |
2cf71d2e DJ |
1705 | dev_kfree_skb(td_info->skb); |
1706 | td_info->skb = NULL; | |
3c4dc711 | 1707 | } |
1da177e4 LT |
1708 | } |
1709 | ||
1710 | /** | |
2cf71d2e DJ |
1711 | * velocity_free_td_ring - free td ring |
1712 | * @vptr: velocity | |
1da177e4 | 1713 | * |
2cf71d2e DJ |
1714 | * Free up the transmit ring for this particular velocity adapter. |
1715 | * We free the ring contents but not the ring itself. | |
1716 | */ | |
1717 | static void velocity_free_td_ring(struct velocity_info *vptr) | |
1718 | { | |
1719 | int i, j; | |
1da177e4 | 1720 | |
2cf71d2e DJ |
1721 | for (j = 0; j < vptr->tx.numq; j++) { |
1722 | if (vptr->tx.infos[j] == NULL) | |
1723 | continue; | |
1724 | for (i = 0; i < vptr->options.numtx; i++) | |
1725 | velocity_free_td_ring_entry(vptr, j, i); | |
6aa20a22 | 1726 | |
2cf71d2e DJ |
1727 | kfree(vptr->tx.infos[j]); |
1728 | vptr->tx.infos[j] = NULL; | |
1729 | } | |
1730 | } | |
6aa20a22 | 1731 | |
1da177e4 | 1732 | |
2cf71d2e DJ |
1733 | static void velocity_free_rings(struct velocity_info *vptr) |
1734 | { | |
1735 | velocity_free_td_ring(vptr); | |
1736 | velocity_free_rd_ring(vptr); | |
1737 | velocity_free_dma_rings(vptr); | |
1da177e4 LT |
1738 | } |
1739 | ||
1740 | /** | |
2cf71d2e DJ |
1741 | * velocity_error - handle error from controller |
1742 | * @vptr: velocity | |
1743 | * @status: card status | |
1744 | * | |
1745 | * Process an error report from the hardware and attempt to recover | |
1746 | * the card itself. At the moment we cannot recover from some | |
1747 | * theoretically impossible errors but this could be fixed using | |
1748 | * the pci_device_failed logic to bounce the hardware | |
1da177e4 | 1749 | * |
1da177e4 | 1750 | */ |
2cf71d2e | 1751 | static void velocity_error(struct velocity_info *vptr, int status) |
1da177e4 | 1752 | { |
580a6902 | 1753 | |
2cf71d2e DJ |
1754 | if (status & ISR_TXSTLI) { |
1755 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1da177e4 | 1756 | |
2cf71d2e DJ |
1757 | printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0])); |
1758 | BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR); | |
1759 | writew(TRDCSR_RUN, ®s->TDCSRClr); | |
1760 | netif_stop_queue(vptr->dev); | |
1da177e4 | 1761 | |
2cf71d2e DJ |
1762 | /* FIXME: port over the pci_device_failed code and use it |
1763 | here */ | |
1764 | } | |
1da177e4 | 1765 | |
2cf71d2e DJ |
1766 | if (status & ISR_SRCI) { |
1767 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1768 | int linked; | |
1da177e4 | 1769 | |
2cf71d2e DJ |
1770 | if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
1771 | vptr->mii_status = check_connection_type(regs); | |
1da177e4 | 1772 | |
2cf71d2e DJ |
1773 | /* |
1774 | * If it is a 3119, disable frame bursting in | |
1775 | * halfduplex mode and enable it in fullduplex | |
1776 | * mode | |
1777 | */ | |
1778 | if (vptr->rev_id < REV_ID_VT3216_A0) { | |
0527a1a8 | 1779 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
2cf71d2e DJ |
1780 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
1781 | else | |
1782 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); | |
1783 | } | |
1784 | /* | |
1785 | * Only enable CD heart beat counter in 10HD mode | |
1786 | */ | |
1787 | if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) | |
1788 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); | |
1789 | else | |
1790 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); | |
1791 | } | |
1792 | /* | |
1793 | * Get link status from PHYSR0 | |
1794 | */ | |
1795 | linked = readb(®s->PHYSR0) & PHYSR0_LINKGD; | |
1da177e4 | 1796 | |
2cf71d2e DJ |
1797 | if (linked) { |
1798 | vptr->mii_status &= ~VELOCITY_LINK_FAIL; | |
1799 | netif_carrier_on(vptr->dev); | |
1800 | } else { | |
1801 | vptr->mii_status |= VELOCITY_LINK_FAIL; | |
1802 | netif_carrier_off(vptr->dev); | |
1803 | } | |
1da177e4 | 1804 | |
2cf71d2e DJ |
1805 | velocity_print_link_status(vptr); |
1806 | enable_flow_control_ability(vptr); | |
1da177e4 | 1807 | |
2cf71d2e DJ |
1808 | /* |
1809 | * Re-enable auto-polling because SRCI will disable | |
1810 | * auto-polling | |
1811 | */ | |
1da177e4 | 1812 | |
2cf71d2e | 1813 | enable_mii_autopoll(regs); |
1da177e4 | 1814 | |
2cf71d2e DJ |
1815 | if (vptr->mii_status & VELOCITY_LINK_FAIL) |
1816 | netif_stop_queue(vptr->dev); | |
1817 | else | |
1818 | netif_wake_queue(vptr->dev); | |
1da177e4 | 1819 | |
2cf71d2e DJ |
1820 | }; |
1821 | if (status & ISR_MIBFI) | |
1822 | velocity_update_hw_mibs(vptr); | |
1823 | if (status & ISR_LSTEI) | |
1824 | mac_rx_queue_wake(vptr->mac_regs); | |
1da177e4 LT |
1825 | } |
1826 | ||
1827 | /** | |
2cf71d2e DJ |
1828 | * tx_srv - transmit interrupt service |
1829 | * @vptr; Velocity | |
1830 | * @status: | |
1da177e4 | 1831 | * |
2cf71d2e DJ |
1832 | * Scan the queues looking for transmitted packets that |
1833 | * we can complete and clean up. Update any statistics as | |
1834 | * necessary/ | |
1da177e4 | 1835 | */ |
2cf71d2e | 1836 | static int velocity_tx_srv(struct velocity_info *vptr, u32 status) |
1da177e4 | 1837 | { |
2cf71d2e DJ |
1838 | struct tx_desc *td; |
1839 | int qnum; | |
1840 | int full = 0; | |
1841 | int idx; | |
1842 | int works = 0; | |
1843 | struct velocity_td_info *tdinfo; | |
1844 | struct net_device_stats *stats = &vptr->dev->stats; | |
1da177e4 | 1845 | |
2cf71d2e DJ |
1846 | for (qnum = 0; qnum < vptr->tx.numq; qnum++) { |
1847 | for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0; | |
1848 | idx = (idx + 1) % vptr->options.numtx) { | |
1da177e4 | 1849 | |
2cf71d2e DJ |
1850 | /* |
1851 | * Get Tx Descriptor | |
1852 | */ | |
1853 | td = &(vptr->tx.rings[qnum][idx]); | |
1854 | tdinfo = &(vptr->tx.infos[qnum][idx]); | |
1da177e4 | 1855 | |
2cf71d2e DJ |
1856 | if (td->tdesc0.len & OWNED_BY_NIC) |
1857 | break; | |
1da177e4 | 1858 | |
2cf71d2e DJ |
1859 | if ((works++ > 15)) |
1860 | break; | |
1861 | ||
1862 | if (td->tdesc0.TSR & TSR0_TERR) { | |
1863 | stats->tx_errors++; | |
1864 | stats->tx_dropped++; | |
1865 | if (td->tdesc0.TSR & TSR0_CDH) | |
1866 | stats->tx_heartbeat_errors++; | |
1867 | if (td->tdesc0.TSR & TSR0_CRS) | |
1868 | stats->tx_carrier_errors++; | |
1869 | if (td->tdesc0.TSR & TSR0_ABT) | |
1870 | stats->tx_aborted_errors++; | |
1871 | if (td->tdesc0.TSR & TSR0_OWC) | |
1872 | stats->tx_window_errors++; | |
1873 | } else { | |
1874 | stats->tx_packets++; | |
1875 | stats->tx_bytes += tdinfo->skb->len; | |
1876 | } | |
1877 | velocity_free_tx_buf(vptr, tdinfo); | |
1878 | vptr->tx.used[qnum]--; | |
1879 | } | |
1880 | vptr->tx.tail[qnum] = idx; | |
1da177e4 | 1881 | |
2cf71d2e DJ |
1882 | if (AVAIL_TD(vptr, qnum) < 1) |
1883 | full = 1; | |
1884 | } | |
1da177e4 | 1885 | /* |
2cf71d2e DJ |
1886 | * Look to see if we should kick the transmit network |
1887 | * layer for more work. | |
1da177e4 | 1888 | */ |
2cf71d2e DJ |
1889 | if (netif_queue_stopped(vptr->dev) && (full == 0) |
1890 | && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { | |
1891 | netif_wake_queue(vptr->dev); | |
1892 | } | |
1893 | return works; | |
1894 | } | |
1895 | ||
1896 | /** | |
1897 | * velocity_rx_csum - checksum process | |
1898 | * @rd: receive packet descriptor | |
1899 | * @skb: network layer packet buffer | |
1900 | * | |
1901 | * Process the status bits for the received packet and determine | |
1902 | * if the checksum was computed and verified by the hardware | |
1903 | */ | |
1904 | static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb) | |
1905 | { | |
1906 | skb->ip_summed = CHECKSUM_NONE; | |
6aa20a22 | 1907 | |
2cf71d2e DJ |
1908 | if (rd->rdesc1.CSM & CSM_IPKT) { |
1909 | if (rd->rdesc1.CSM & CSM_IPOK) { | |
1910 | if ((rd->rdesc1.CSM & CSM_TCPKT) || | |
1911 | (rd->rdesc1.CSM & CSM_UDPKT)) { | |
1912 | if (!(rd->rdesc1.CSM & CSM_TUPOK)) | |
1913 | return; | |
1914 | } | |
1915 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1da177e4 LT |
1916 | } |
1917 | } | |
1da177e4 LT |
1918 | } |
1919 | ||
1da177e4 | 1920 | /** |
2cf71d2e DJ |
1921 | * velocity_rx_copy - in place Rx copy for small packets |
1922 | * @rx_skb: network layer packet buffer candidate | |
1923 | * @pkt_size: received data size | |
1924 | * @rd: receive packet descriptor | |
1da177e4 LT |
1925 | * @dev: network device |
1926 | * | |
2cf71d2e DJ |
1927 | * Replace the current skb that is scheduled for Rx processing by a |
1928 | * shorter, immediatly allocated skb, if the received packet is small | |
1929 | * enough. This function returns a negative value if the received | |
1930 | * packet is too big or if memory is exhausted. | |
1da177e4 | 1931 | */ |
2cf71d2e DJ |
1932 | static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size, |
1933 | struct velocity_info *vptr) | |
1da177e4 | 1934 | { |
2cf71d2e DJ |
1935 | int ret = -1; |
1936 | if (pkt_size < rx_copybreak) { | |
1937 | struct sk_buff *new_skb; | |
1da177e4 | 1938 | |
89d71a66 | 1939 | new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size); |
2cf71d2e DJ |
1940 | if (new_skb) { |
1941 | new_skb->ip_summed = rx_skb[0]->ip_summed; | |
2cf71d2e DJ |
1942 | skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size); |
1943 | *rx_skb = new_skb; | |
1944 | ret = 0; | |
1da177e4 LT |
1945 | } |
1946 | ||
1da177e4 | 1947 | } |
2cf71d2e | 1948 | return ret; |
1da177e4 LT |
1949 | } |
1950 | ||
1951 | /** | |
2cf71d2e DJ |
1952 | * velocity_iph_realign - IP header alignment |
1953 | * @vptr: velocity we are handling | |
1954 | * @skb: network layer packet buffer | |
1955 | * @pkt_size: received data size | |
1da177e4 | 1956 | * |
2cf71d2e DJ |
1957 | * Align IP header on a 2 bytes boundary. This behavior can be |
1958 | * configured by the user. | |
1da177e4 | 1959 | */ |
2cf71d2e DJ |
1960 | static inline void velocity_iph_realign(struct velocity_info *vptr, |
1961 | struct sk_buff *skb, int pkt_size) | |
1da177e4 | 1962 | { |
2cf71d2e DJ |
1963 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) { |
1964 | memmove(skb->data + 2, skb->data, pkt_size); | |
1965 | skb_reserve(skb, 2); | |
1966 | } | |
1967 | } | |
6aa20a22 | 1968 | |
1da177e4 | 1969 | |
2cf71d2e DJ |
1970 | /** |
1971 | * velocity_receive_frame - received packet processor | |
1972 | * @vptr: velocity we are handling | |
1973 | * @idx: ring index | |
1974 | * | |
1975 | * A packet has arrived. We process the packet and if appropriate | |
1976 | * pass the frame up the network stack | |
1977 | */ | |
1978 | static int velocity_receive_frame(struct velocity_info *vptr, int idx) | |
1979 | { | |
1980 | void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); | |
1981 | struct net_device_stats *stats = &vptr->dev->stats; | |
1982 | struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); | |
1983 | struct rx_desc *rd = &(vptr->rx.ring[idx]); | |
1984 | int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff; | |
1985 | struct sk_buff *skb; | |
1da177e4 | 1986 | |
2cf71d2e DJ |
1987 | if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { |
1988 | VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name); | |
1989 | stats->rx_length_errors++; | |
1990 | return -EINVAL; | |
1991 | } | |
1da177e4 | 1992 | |
2cf71d2e DJ |
1993 | if (rd->rdesc0.RSR & RSR_MAR) |
1994 | stats->multicast++; | |
1da177e4 | 1995 | |
2cf71d2e | 1996 | skb = rd_info->skb; |
1da177e4 | 1997 | |
2cf71d2e DJ |
1998 | pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, |
1999 | vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); | |
1da177e4 | 2000 | |
2cf71d2e DJ |
2001 | /* |
2002 | * Drop frame not meeting IEEE 802.3 | |
2003 | */ | |
1da177e4 | 2004 | |
2cf71d2e DJ |
2005 | if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) { |
2006 | if (rd->rdesc0.RSR & RSR_RL) { | |
2007 | stats->rx_length_errors++; | |
2008 | return -EINVAL; | |
2009 | } | |
2010 | } | |
6aa20a22 | 2011 | |
2cf71d2e | 2012 | pci_action = pci_dma_sync_single_for_device; |
1da177e4 | 2013 | |
2cf71d2e | 2014 | velocity_rx_csum(rd, skb); |
6aa20a22 | 2015 | |
2cf71d2e DJ |
2016 | if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { |
2017 | velocity_iph_realign(vptr, skb, pkt_len); | |
2018 | pci_action = pci_unmap_single; | |
2019 | rd_info->skb = NULL; | |
2020 | } | |
6aa20a22 | 2021 | |
2cf71d2e DJ |
2022 | pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, |
2023 | PCI_DMA_FROMDEVICE); | |
1da177e4 | 2024 | |
2cf71d2e DJ |
2025 | skb_put(skb, pkt_len - 4); |
2026 | skb->protocol = eth_type_trans(skb, vptr->dev); | |
2027 | ||
2028 | if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) { | |
2029 | vlan_hwaccel_rx(skb, vptr->vlgrp, | |
2030 | swab16(le16_to_cpu(rd->rdesc1.PQTAG))); | |
2031 | } else | |
2032 | netif_rx(skb); | |
6aa20a22 | 2033 | |
2cf71d2e | 2034 | stats->rx_bytes += pkt_len; |
6aa20a22 | 2035 | |
2cf71d2e | 2036 | return 0; |
1da177e4 LT |
2037 | } |
2038 | ||
1da177e4 LT |
2039 | |
2040 | /** | |
2cf71d2e DJ |
2041 | * velocity_rx_srv - service RX interrupt |
2042 | * @vptr: velocity | |
2043 | * @status: adapter status (unused) | |
1da177e4 | 2044 | * |
2cf71d2e DJ |
2045 | * Walk the receive ring of the velocity adapter and remove |
2046 | * any received packets from the receive queue. Hand the ring | |
2047 | * slots back to the adapter for reuse. | |
1da177e4 | 2048 | */ |
2cf71d2e | 2049 | static int velocity_rx_srv(struct velocity_info *vptr, int status) |
1da177e4 | 2050 | { |
2cf71d2e DJ |
2051 | struct net_device_stats *stats = &vptr->dev->stats; |
2052 | int rd_curr = vptr->rx.curr; | |
2053 | int works = 0; | |
2054 | ||
2055 | do { | |
2056 | struct rx_desc *rd = vptr->rx.ring + rd_curr; | |
2057 | ||
2058 | if (!vptr->rx.info[rd_curr].skb) | |
2059 | break; | |
2060 | ||
2061 | if (rd->rdesc0.len & OWNED_BY_NIC) | |
2062 | break; | |
2063 | ||
2064 | rmb(); | |
1da177e4 | 2065 | |
2cf71d2e DJ |
2066 | /* |
2067 | * Don't drop CE or RL error frame although RXOK is off | |
2068 | */ | |
2069 | if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) { | |
2070 | if (velocity_receive_frame(vptr, rd_curr) < 0) | |
2071 | stats->rx_dropped++; | |
2072 | } else { | |
2073 | if (rd->rdesc0.RSR & RSR_CRC) | |
2074 | stats->rx_crc_errors++; | |
2075 | if (rd->rdesc0.RSR & RSR_FAE) | |
2076 | stats->rx_frame_errors++; | |
1da177e4 | 2077 | |
2cf71d2e DJ |
2078 | stats->rx_dropped++; |
2079 | } | |
6aa20a22 | 2080 | |
2cf71d2e | 2081 | rd->size |= RX_INTEN; |
1da177e4 | 2082 | |
2cf71d2e DJ |
2083 | rd_curr++; |
2084 | if (rd_curr >= vptr->options.numrx) | |
2085 | rd_curr = 0; | |
2086 | } while (++works <= 15); | |
1da177e4 | 2087 | |
2cf71d2e | 2088 | vptr->rx.curr = rd_curr; |
1da177e4 | 2089 | |
2cf71d2e DJ |
2090 | if ((works > 0) && (velocity_rx_refill(vptr) > 0)) |
2091 | velocity_give_many_rx_descs(vptr); | |
2092 | ||
2093 | VAR_USED(stats); | |
2094 | return works; | |
2095 | } | |
6aa20a22 JG |
2096 | |
2097 | ||
1da177e4 | 2098 | /** |
2cf71d2e DJ |
2099 | * velocity_intr - interrupt callback |
2100 | * @irq: interrupt number | |
2101 | * @dev_instance: interrupting device | |
1da177e4 | 2102 | * |
2cf71d2e DJ |
2103 | * Called whenever an interrupt is generated by the velocity |
2104 | * adapter IRQ line. We may not be the source of the interrupt | |
2105 | * and need to identify initially if we are, and if not exit as | |
2106 | * efficiently as possible. | |
1da177e4 | 2107 | */ |
2cf71d2e | 2108 | static irqreturn_t velocity_intr(int irq, void *dev_instance) |
1da177e4 | 2109 | { |
2cf71d2e DJ |
2110 | struct net_device *dev = dev_instance; |
2111 | struct velocity_info *vptr = netdev_priv(dev); | |
2112 | u32 isr_status; | |
2113 | int max_count = 0; | |
1da177e4 | 2114 | |
1da177e4 | 2115 | |
2cf71d2e DJ |
2116 | spin_lock(&vptr->lock); |
2117 | isr_status = mac_read_isr(vptr->mac_regs); | |
2118 | ||
2119 | /* Not us ? */ | |
2120 | if (isr_status == 0) { | |
2121 | spin_unlock(&vptr->lock); | |
2122 | return IRQ_NONE; | |
1da177e4 | 2123 | } |
1da177e4 | 2124 | |
2cf71d2e | 2125 | mac_disable_int(vptr->mac_regs); |
6aa20a22 | 2126 | |
2cf71d2e DJ |
2127 | /* |
2128 | * Keep processing the ISR until we have completed | |
2129 | * processing and the isr_status becomes zero | |
2130 | */ | |
1da177e4 | 2131 | |
2cf71d2e DJ |
2132 | while (isr_status != 0) { |
2133 | mac_write_isr(vptr->mac_regs, isr_status); | |
2134 | if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) | |
2135 | velocity_error(vptr, isr_status); | |
2136 | if (isr_status & (ISR_PRXI | ISR_PPRXI)) | |
2137 | max_count += velocity_rx_srv(vptr, isr_status); | |
2138 | if (isr_status & (ISR_PTXI | ISR_PPTXI)) | |
2139 | max_count += velocity_tx_srv(vptr, isr_status); | |
2140 | isr_status = mac_read_isr(vptr->mac_regs); | |
2141 | if (max_count > vptr->options.int_works) { | |
2142 | printk(KERN_WARNING "%s: excessive work at interrupt.\n", | |
2143 | dev->name); | |
2144 | max_count = 0; | |
2145 | } | |
1da177e4 | 2146 | } |
2cf71d2e DJ |
2147 | spin_unlock(&vptr->lock); |
2148 | mac_enable_int(vptr->mac_regs); | |
2149 | return IRQ_HANDLED; | |
2150 | ||
1da177e4 LT |
2151 | } |
2152 | ||
2153 | /** | |
2cf71d2e DJ |
2154 | * velocity_open - interface activation callback |
2155 | * @dev: network layer device to open | |
1da177e4 | 2156 | * |
2cf71d2e DJ |
2157 | * Called when the network layer brings the interface up. Returns |
2158 | * a negative posix error code on failure, or zero on success. | |
2159 | * | |
2160 | * All the ring allocation and set up is done on open for this | |
2161 | * adapter to minimise memory usage when inactive | |
1da177e4 | 2162 | */ |
2cf71d2e | 2163 | static int velocity_open(struct net_device *dev) |
1da177e4 | 2164 | { |
2cf71d2e DJ |
2165 | struct velocity_info *vptr = netdev_priv(dev); |
2166 | int ret; | |
1da177e4 | 2167 | |
2cf71d2e DJ |
2168 | ret = velocity_init_rings(vptr, dev->mtu); |
2169 | if (ret < 0) | |
2170 | goto out; | |
1da177e4 | 2171 | |
2cf71d2e DJ |
2172 | /* Ensure chip is running */ |
2173 | pci_set_power_state(vptr->pdev, PCI_D0); | |
1da177e4 | 2174 | |
2cf71d2e | 2175 | velocity_give_many_rx_descs(vptr); |
1da177e4 | 2176 | |
2cf71d2e DJ |
2177 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
2178 | ||
1ede9b52 | 2179 | ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED, |
2cf71d2e DJ |
2180 | dev->name, dev); |
2181 | if (ret < 0) { | |
2182 | /* Power down the chip */ | |
2183 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
2184 | velocity_free_rings(vptr); | |
2185 | goto out; | |
1da177e4 LT |
2186 | } |
2187 | ||
2cf71d2e DJ |
2188 | mac_enable_int(vptr->mac_regs); |
2189 | netif_start_queue(dev); | |
2190 | vptr->flags |= VELOCITY_FLAGS_OPENED; | |
2191 | out: | |
2192 | return ret; | |
1da177e4 LT |
2193 | } |
2194 | ||
2195 | /** | |
2cf71d2e DJ |
2196 | * velocity_shutdown - shut down the chip |
2197 | * @vptr: velocity to deactivate | |
1da177e4 | 2198 | * |
2cf71d2e DJ |
2199 | * Shuts down the internal operations of the velocity and |
2200 | * disables interrupts, autopolling, transmit and receive | |
1da177e4 | 2201 | */ |
2cf71d2e | 2202 | static void velocity_shutdown(struct velocity_info *vptr) |
1da177e4 | 2203 | { |
2cf71d2e DJ |
2204 | struct mac_regs __iomem *regs = vptr->mac_regs; |
2205 | mac_disable_int(regs); | |
2206 | writel(CR0_STOP, ®s->CR0Set); | |
2207 | writew(0xFFFF, ®s->TDCSRClr); | |
2208 | writeb(0xFF, ®s->RDCSRClr); | |
1da177e4 | 2209 | safe_disable_mii_autopoll(regs); |
2cf71d2e DJ |
2210 | mac_clear_isr(regs); |
2211 | } | |
1da177e4 | 2212 | |
2cf71d2e DJ |
2213 | /** |
2214 | * velocity_change_mtu - MTU change callback | |
2215 | * @dev: network device | |
2216 | * @new_mtu: desired MTU | |
2217 | * | |
2218 | * Handle requests from the networking layer for MTU change on | |
2219 | * this interface. It gets called on a change by the network layer. | |
2220 | * Return zero for success or negative posix error code. | |
2221 | */ | |
2222 | static int velocity_change_mtu(struct net_device *dev, int new_mtu) | |
2223 | { | |
2224 | struct velocity_info *vptr = netdev_priv(dev); | |
2225 | int ret = 0; | |
1da177e4 | 2226 | |
2cf71d2e DJ |
2227 | if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) { |
2228 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n", | |
2229 | vptr->dev->name); | |
2230 | ret = -EINVAL; | |
2231 | goto out_0; | |
2232 | } | |
1da177e4 | 2233 | |
2cf71d2e DJ |
2234 | if (!netif_running(dev)) { |
2235 | dev->mtu = new_mtu; | |
2236 | goto out_0; | |
1da177e4 LT |
2237 | } |
2238 | ||
2cf71d2e DJ |
2239 | if (dev->mtu != new_mtu) { |
2240 | struct velocity_info *tmp_vptr; | |
2241 | unsigned long flags; | |
2242 | struct rx_info rx; | |
2243 | struct tx_info tx; | |
1da177e4 | 2244 | |
2cf71d2e DJ |
2245 | tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL); |
2246 | if (!tmp_vptr) { | |
2247 | ret = -ENOMEM; | |
2248 | goto out_0; | |
2249 | } | |
1da177e4 | 2250 | |
2cf71d2e DJ |
2251 | tmp_vptr->dev = dev; |
2252 | tmp_vptr->pdev = vptr->pdev; | |
2253 | tmp_vptr->options = vptr->options; | |
2254 | tmp_vptr->tx.numq = vptr->tx.numq; | |
6aa20a22 | 2255 | |
2cf71d2e DJ |
2256 | ret = velocity_init_rings(tmp_vptr, new_mtu); |
2257 | if (ret < 0) | |
2258 | goto out_free_tmp_vptr_1; | |
1da177e4 | 2259 | |
2cf71d2e | 2260 | spin_lock_irqsave(&vptr->lock, flags); |
1da177e4 | 2261 | |
2cf71d2e DJ |
2262 | netif_stop_queue(dev); |
2263 | velocity_shutdown(vptr); | |
1da177e4 | 2264 | |
2cf71d2e DJ |
2265 | rx = vptr->rx; |
2266 | tx = vptr->tx; | |
1da177e4 | 2267 | |
2cf71d2e DJ |
2268 | vptr->rx = tmp_vptr->rx; |
2269 | vptr->tx = tmp_vptr->tx; | |
1da177e4 | 2270 | |
2cf71d2e DJ |
2271 | tmp_vptr->rx = rx; |
2272 | tmp_vptr->tx = tx; | |
1da177e4 | 2273 | |
2cf71d2e | 2274 | dev->mtu = new_mtu; |
6aa20a22 | 2275 | |
2cf71d2e | 2276 | velocity_give_many_rx_descs(vptr); |
1da177e4 | 2277 | |
2cf71d2e | 2278 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
1da177e4 | 2279 | |
2cf71d2e DJ |
2280 | mac_enable_int(vptr->mac_regs); |
2281 | netif_start_queue(dev); | |
6aa20a22 | 2282 | |
2cf71d2e | 2283 | spin_unlock_irqrestore(&vptr->lock, flags); |
1da177e4 | 2284 | |
2cf71d2e | 2285 | velocity_free_rings(tmp_vptr); |
1da177e4 | 2286 | |
2cf71d2e DJ |
2287 | out_free_tmp_vptr_1: |
2288 | kfree(tmp_vptr); | |
2289 | } | |
2290 | out_0: | |
2291 | return ret; | |
1da177e4 | 2292 | } |
1da177e4 LT |
2293 | |
2294 | /** | |
2cf71d2e DJ |
2295 | * velocity_mii_ioctl - MII ioctl handler |
2296 | * @dev: network device | |
2297 | * @ifr: the ifreq block for the ioctl | |
2298 | * @cmd: the command | |
1da177e4 | 2299 | * |
2cf71d2e DJ |
2300 | * Process MII requests made via ioctl from the network layer. These |
2301 | * are used by tools like kudzu to interrogate the link state of the | |
2302 | * hardware | |
1da177e4 | 2303 | */ |
2cf71d2e | 2304 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1da177e4 | 2305 | { |
2cf71d2e DJ |
2306 | struct velocity_info *vptr = netdev_priv(dev); |
2307 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
2308 | unsigned long flags; | |
2309 | struct mii_ioctl_data *miidata = if_mii(ifr); | |
2310 | int err; | |
1da177e4 | 2311 | |
2cf71d2e DJ |
2312 | switch (cmd) { |
2313 | case SIOCGMIIPHY: | |
2314 | miidata->phy_id = readb(®s->MIIADR) & 0x1f; | |
1da177e4 | 2315 | break; |
2cf71d2e | 2316 | case SIOCGMIIREG: |
2cf71d2e DJ |
2317 | if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0) |
2318 | return -ETIMEDOUT; | |
1da177e4 | 2319 | break; |
2cf71d2e | 2320 | case SIOCSMIIREG: |
2cf71d2e DJ |
2321 | spin_lock_irqsave(&vptr->lock, flags); |
2322 | err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in); | |
2323 | spin_unlock_irqrestore(&vptr->lock, flags); | |
2324 | check_connection_type(vptr->mac_regs); | |
2325 | if (err) | |
2326 | return err; | |
1da177e4 LT |
2327 | break; |
2328 | default: | |
2cf71d2e | 2329 | return -EOPNOTSUPP; |
1da177e4 | 2330 | } |
2cf71d2e | 2331 | return 0; |
1da177e4 LT |
2332 | } |
2333 | ||
2cf71d2e | 2334 | |
1da177e4 | 2335 | /** |
2cf71d2e DJ |
2336 | * velocity_ioctl - ioctl entry point |
2337 | * @dev: network device | |
2338 | * @rq: interface request ioctl | |
2339 | * @cmd: command code | |
1da177e4 | 2340 | * |
2cf71d2e DJ |
2341 | * Called when the user issues an ioctl request to the network |
2342 | * device in question. The velocity interface supports MII. | |
1da177e4 | 2343 | */ |
2cf71d2e DJ |
2344 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
2345 | { | |
2346 | struct velocity_info *vptr = netdev_priv(dev); | |
2347 | int ret; | |
6aa20a22 | 2348 | |
2cf71d2e DJ |
2349 | /* If we are asked for information and the device is power |
2350 | saving then we need to bring the device back up to talk to it */ | |
1da177e4 | 2351 | |
2cf71d2e DJ |
2352 | if (!netif_running(dev)) |
2353 | pci_set_power_state(vptr->pdev, PCI_D0); | |
1da177e4 | 2354 | |
2cf71d2e DJ |
2355 | switch (cmd) { |
2356 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ | |
2357 | case SIOCGMIIREG: /* Read MII PHY register. */ | |
2358 | case SIOCSMIIREG: /* Write to MII PHY register. */ | |
2359 | ret = velocity_mii_ioctl(dev, rq, cmd); | |
2360 | break; | |
1da177e4 | 2361 | |
2cf71d2e DJ |
2362 | default: |
2363 | ret = -EOPNOTSUPP; | |
2364 | } | |
2365 | if (!netif_running(dev)) | |
2366 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
1da177e4 | 2367 | |
c4067400 | 2368 | |
2cf71d2e | 2369 | return ret; |
1da177e4 LT |
2370 | } |
2371 | ||
2372 | /** | |
2cf71d2e DJ |
2373 | * velocity_get_status - statistics callback |
2374 | * @dev: network device | |
1da177e4 | 2375 | * |
2cf71d2e DJ |
2376 | * Callback from the network layer to allow driver statistics |
2377 | * to be resynchronized with hardware collected state. In the | |
2378 | * case of the velocity we need to pull the MIB counters from | |
2379 | * the hardware into the counters before letting the network | |
2380 | * layer display them. | |
1da177e4 | 2381 | */ |
2cf71d2e | 2382 | static struct net_device_stats *velocity_get_stats(struct net_device *dev) |
1da177e4 | 2383 | { |
2cf71d2e | 2384 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 2385 | |
2cf71d2e DJ |
2386 | /* If the hardware is down, don't touch MII */ |
2387 | if (!netif_running(dev)) | |
2388 | return &dev->stats; | |
1da177e4 | 2389 | |
2cf71d2e DJ |
2390 | spin_lock_irq(&vptr->lock); |
2391 | velocity_update_hw_mibs(vptr); | |
2392 | spin_unlock_irq(&vptr->lock); | |
1da177e4 | 2393 | |
2cf71d2e DJ |
2394 | dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts]; |
2395 | dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts]; | |
2396 | dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors]; | |
1da177e4 | 2397 | |
2cf71d2e DJ |
2398 | // unsigned long rx_dropped; /* no space in linux buffers */ |
2399 | dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions]; | |
2400 | /* detailed rx_errors: */ | |
2401 | // unsigned long rx_length_errors; | |
2402 | // unsigned long rx_over_errors; /* receiver ring buff overflow */ | |
2403 | dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE]; | |
2404 | // unsigned long rx_frame_errors; /* recv'd frame alignment error */ | |
2405 | // unsigned long rx_fifo_errors; /* recv'r fifo overrun */ | |
2406 | // unsigned long rx_missed_errors; /* receiver missed packet */ | |
2407 | ||
2408 | /* detailed tx_errors */ | |
2409 | // unsigned long tx_fifo_errors; | |
2410 | ||
2411 | return &dev->stats; | |
1da177e4 LT |
2412 | } |
2413 | ||
2cf71d2e DJ |
2414 | /** |
2415 | * velocity_close - close adapter callback | |
2416 | * @dev: network device | |
2417 | * | |
2418 | * Callback from the network layer when the velocity is being | |
2419 | * deactivated by the network layer | |
2420 | */ | |
2421 | static int velocity_close(struct net_device *dev) | |
1da177e4 | 2422 | { |
2cf71d2e | 2423 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 2424 | |
2cf71d2e DJ |
2425 | netif_stop_queue(dev); |
2426 | velocity_shutdown(vptr); | |
1da177e4 | 2427 | |
2cf71d2e DJ |
2428 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) |
2429 | velocity_get_ip(vptr); | |
2430 | if (dev->irq != 0) | |
2431 | free_irq(dev->irq, dev); | |
1da177e4 | 2432 | |
2cf71d2e DJ |
2433 | /* Power down the chip */ |
2434 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
1da177e4 | 2435 | |
2cf71d2e | 2436 | velocity_free_rings(vptr); |
1da177e4 | 2437 | |
2cf71d2e DJ |
2438 | vptr->flags &= (~VELOCITY_FLAGS_OPENED); |
2439 | return 0; | |
1da177e4 LT |
2440 | } |
2441 | ||
2442 | /** | |
2cf71d2e DJ |
2443 | * velocity_xmit - transmit packet callback |
2444 | * @skb: buffer to transmit | |
2445 | * @dev: network device | |
1da177e4 | 2446 | * |
2cf71d2e DJ |
2447 | * Called by the networ layer to request a packet is queued to |
2448 | * the velocity. Returns zero on success. | |
1da177e4 | 2449 | */ |
61357325 SH |
2450 | static netdev_tx_t velocity_xmit(struct sk_buff *skb, |
2451 | struct net_device *dev) | |
1da177e4 | 2452 | { |
2cf71d2e DJ |
2453 | struct velocity_info *vptr = netdev_priv(dev); |
2454 | int qnum = 0; | |
2455 | struct tx_desc *td_ptr; | |
2456 | struct velocity_td_info *tdinfo; | |
2457 | unsigned long flags; | |
2458 | int pktlen; | |
2459 | __le16 len; | |
2460 | int index; | |
1da177e4 | 2461 | |
2cf71d2e DJ |
2462 | if (skb_padto(skb, ETH_ZLEN)) |
2463 | goto out; | |
2464 | pktlen = max_t(unsigned int, skb->len, ETH_ZLEN); | |
1da177e4 | 2465 | |
2cf71d2e | 2466 | len = cpu_to_le16(pktlen); |
1da177e4 | 2467 | |
2cf71d2e | 2468 | spin_lock_irqsave(&vptr->lock, flags); |
1da177e4 | 2469 | |
2cf71d2e DJ |
2470 | index = vptr->tx.curr[qnum]; |
2471 | td_ptr = &(vptr->tx.rings[qnum][index]); | |
2472 | tdinfo = &(vptr->tx.infos[qnum][index]); | |
1da177e4 | 2473 | |
2cf71d2e DJ |
2474 | td_ptr->tdesc1.TCR = TCR0_TIC; |
2475 | td_ptr->td_buf[0].size &= ~TD_QUEUE; | |
1da177e4 | 2476 | |
2cf71d2e DJ |
2477 | /* |
2478 | * Map the linear network buffer into PCI space and | |
2479 | * add it to the transmit ring. | |
2480 | */ | |
2481 | tdinfo->skb = skb; | |
2482 | tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); | |
2483 | td_ptr->tdesc0.len = len; | |
2484 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); | |
2485 | td_ptr->td_buf[0].pa_high = 0; | |
2486 | td_ptr->td_buf[0].size = len; | |
2487 | tdinfo->nskb_dma = 1; | |
2488 | ||
2489 | td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16; | |
2490 | ||
2491 | if (vptr->vlgrp && vlan_tx_tag_present(skb)) { | |
2492 | td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb)); | |
2493 | td_ptr->tdesc1.TCR |= TCR0_VETAG; | |
2494 | } | |
2495 | ||
2496 | /* | |
2497 | * Handle hardware checksum | |
2498 | */ | |
2499 | if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM) | |
2500 | && (skb->ip_summed == CHECKSUM_PARTIAL)) { | |
2501 | const struct iphdr *ip = ip_hdr(skb); | |
2502 | if (ip->protocol == IPPROTO_TCP) | |
2503 | td_ptr->tdesc1.TCR |= TCR0_TCPCK; | |
2504 | else if (ip->protocol == IPPROTO_UDP) | |
2505 | td_ptr->tdesc1.TCR |= (TCR0_UDPCK); | |
2506 | td_ptr->tdesc1.TCR |= TCR0_IPCK; | |
2507 | } | |
2508 | { | |
1da177e4 | 2509 | |
2cf71d2e | 2510 | int prev = index - 1; |
1da177e4 | 2511 | |
2cf71d2e DJ |
2512 | if (prev < 0) |
2513 | prev = vptr->options.numtx - 1; | |
2514 | td_ptr->tdesc0.len |= OWNED_BY_NIC; | |
2515 | vptr->tx.used[qnum]++; | |
2516 | vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx; | |
1da177e4 | 2517 | |
2cf71d2e DJ |
2518 | if (AVAIL_TD(vptr, qnum) < 1) |
2519 | netif_stop_queue(dev); | |
1da177e4 | 2520 | |
2cf71d2e DJ |
2521 | td_ptr = &(vptr->tx.rings[qnum][prev]); |
2522 | td_ptr->td_buf[0].size |= TD_QUEUE; | |
2523 | mac_tx_queue_wake(vptr->mac_regs, qnum); | |
2524 | } | |
2525 | dev->trans_start = jiffies; | |
2526 | spin_unlock_irqrestore(&vptr->lock, flags); | |
2527 | out: | |
2528 | return NETDEV_TX_OK; | |
1da177e4 LT |
2529 | } |
2530 | ||
2531 | ||
2cf71d2e DJ |
2532 | static const struct net_device_ops velocity_netdev_ops = { |
2533 | .ndo_open = velocity_open, | |
2534 | .ndo_stop = velocity_close, | |
2535 | .ndo_start_xmit = velocity_xmit, | |
2536 | .ndo_get_stats = velocity_get_stats, | |
2537 | .ndo_validate_addr = eth_validate_addr, | |
2538 | .ndo_set_mac_address = eth_mac_addr, | |
2539 | .ndo_set_multicast_list = velocity_set_multi, | |
2540 | .ndo_change_mtu = velocity_change_mtu, | |
2541 | .ndo_do_ioctl = velocity_ioctl, | |
2542 | .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid, | |
2543 | .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid, | |
2544 | .ndo_vlan_rx_register = velocity_vlan_rx_register, | |
2545 | }; | |
2546 | ||
1da177e4 | 2547 | /** |
2cf71d2e DJ |
2548 | * velocity_init_info - init private data |
2549 | * @pdev: PCI device | |
2550 | * @vptr: Velocity info | |
2551 | * @info: Board type | |
1da177e4 | 2552 | * |
2cf71d2e DJ |
2553 | * Set up the initial velocity_info struct for the device that has been |
2554 | * discovered. | |
1da177e4 | 2555 | */ |
2cf71d2e DJ |
2556 | static void __devinit velocity_init_info(struct pci_dev *pdev, |
2557 | struct velocity_info *vptr, | |
2558 | const struct velocity_info_tbl *info) | |
1da177e4 | 2559 | { |
2cf71d2e DJ |
2560 | memset(vptr, 0, sizeof(struct velocity_info)); |
2561 | ||
2562 | vptr->pdev = pdev; | |
2563 | vptr->chip_id = info->chip_id; | |
2564 | vptr->tx.numq = info->txqueue; | |
2565 | vptr->multicast_limit = MCAM_SIZE; | |
2566 | spin_lock_init(&vptr->lock); | |
6aa20a22 | 2567 | } |
1da177e4 LT |
2568 | |
2569 | /** | |
2cf71d2e DJ |
2570 | * velocity_get_pci_info - retrieve PCI info for device |
2571 | * @vptr: velocity device | |
2572 | * @pdev: PCI device it matches | |
1da177e4 | 2573 | * |
2cf71d2e DJ |
2574 | * Retrieve the PCI configuration space data that interests us from |
2575 | * the kernel PCI layer | |
1da177e4 | 2576 | */ |
2cf71d2e | 2577 | static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev) |
1da177e4 | 2578 | { |
2cf71d2e | 2579 | vptr->rev_id = pdev->revision; |
1da177e4 | 2580 | |
2cf71d2e | 2581 | pci_set_master(pdev); |
1da177e4 | 2582 | |
2cf71d2e DJ |
2583 | vptr->ioaddr = pci_resource_start(pdev, 0); |
2584 | vptr->memaddr = pci_resource_start(pdev, 1); | |
1da177e4 | 2585 | |
2cf71d2e DJ |
2586 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { |
2587 | dev_err(&pdev->dev, | |
2588 | "region #0 is not an I/O resource, aborting.\n"); | |
2589 | return -EINVAL; | |
2590 | } | |
2591 | ||
2592 | if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) { | |
2593 | dev_err(&pdev->dev, | |
2594 | "region #1 is an I/O resource, aborting.\n"); | |
2595 | return -EINVAL; | |
2596 | } | |
2597 | ||
2598 | if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) { | |
2599 | dev_err(&pdev->dev, "region #1 is too small.\n"); | |
2600 | return -EINVAL; | |
2601 | } | |
2602 | vptr->pdev = pdev; | |
6aa20a22 | 2603 | |
1da177e4 LT |
2604 | return 0; |
2605 | } | |
2606 | ||
2cf71d2e DJ |
2607 | /** |
2608 | * velocity_print_info - per driver data | |
2609 | * @vptr: velocity | |
2610 | * | |
2611 | * Print per driver data as the kernel driver finds Velocity | |
2612 | * hardware | |
2613 | */ | |
2614 | static void __devinit velocity_print_info(struct velocity_info *vptr) | |
1da177e4 | 2615 | { |
2cf71d2e | 2616 | struct net_device *dev = vptr->dev; |
1da177e4 | 2617 | |
2cf71d2e DJ |
2618 | printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id)); |
2619 | printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", | |
2620 | dev->name, | |
2621 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
2622 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); | |
1da177e4 LT |
2623 | } |
2624 | ||
2625 | static u32 velocity_get_link(struct net_device *dev) | |
2626 | { | |
8ab6f3f7 | 2627 | struct velocity_info *vptr = netdev_priv(dev); |
c4067400 | 2628 | struct mac_regs __iomem *regs = vptr->mac_regs; |
59b693fb | 2629 | return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0; |
1da177e4 LT |
2630 | } |
2631 | ||
1da177e4 | 2632 | |
2cf71d2e DJ |
2633 | /** |
2634 | * velocity_found1 - set up discovered velocity card | |
2635 | * @pdev: PCI device | |
2636 | * @ent: PCI device table entry that matched | |
2637 | * | |
2638 | * Configure a discovered adapter from scratch. Return a negative | |
2639 | * errno error code on failure paths. | |
2640 | */ | |
2641 | static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1da177e4 | 2642 | { |
2cf71d2e DJ |
2643 | static int first = 1; |
2644 | struct net_device *dev; | |
2645 | int i; | |
2646 | const char *drv_string; | |
2647 | const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data]; | |
2648 | struct velocity_info *vptr; | |
2649 | struct mac_regs __iomem *regs; | |
2650 | int ret = -ENOMEM; | |
1da177e4 | 2651 | |
2cf71d2e DJ |
2652 | /* FIXME: this driver, like almost all other ethernet drivers, |
2653 | * can support more than MAX_UNITS. | |
2654 | */ | |
2655 | if (velocity_nics >= MAX_UNITS) { | |
2656 | dev_notice(&pdev->dev, "already found %d NICs.\n", | |
2657 | velocity_nics); | |
2658 | return -ENODEV; | |
2659 | } | |
1da177e4 | 2660 | |
2cf71d2e DJ |
2661 | dev = alloc_etherdev(sizeof(struct velocity_info)); |
2662 | if (!dev) { | |
2663 | dev_err(&pdev->dev, "allocate net device failed.\n"); | |
2664 | goto out; | |
2665 | } | |
1da177e4 | 2666 | |
2cf71d2e | 2667 | /* Chain it all together */ |
1da177e4 | 2668 | |
2cf71d2e DJ |
2669 | SET_NETDEV_DEV(dev, &pdev->dev); |
2670 | vptr = netdev_priv(dev); | |
2671 | ||
2672 | ||
2673 | if (first) { | |
2674 | printk(KERN_INFO "%s Ver. %s\n", | |
2675 | VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); | |
2676 | printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n"); | |
2677 | printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n"); | |
2678 | first = 0; | |
2679 | } | |
2680 | ||
2681 | velocity_init_info(pdev, vptr, info); | |
2682 | ||
2683 | vptr->dev = dev; | |
2684 | ||
2685 | dev->irq = pdev->irq; | |
2686 | ||
2687 | ret = pci_enable_device(pdev); | |
2688 | if (ret < 0) | |
2689 | goto err_free_dev; | |
2690 | ||
2691 | ret = velocity_get_pci_info(vptr, pdev); | |
2692 | if (ret < 0) { | |
2693 | /* error message already printed */ | |
2694 | goto err_disable; | |
1da177e4 | 2695 | } |
2cf71d2e DJ |
2696 | |
2697 | ret = pci_request_regions(pdev, VELOCITY_NAME); | |
2698 | if (ret < 0) { | |
2699 | dev_err(&pdev->dev, "No PCI resources.\n"); | |
2700 | goto err_disable; | |
1da177e4 | 2701 | } |
2cf71d2e DJ |
2702 | |
2703 | regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE); | |
2704 | if (regs == NULL) { | |
2705 | ret = -EIO; | |
2706 | goto err_release_res; | |
1da177e4 | 2707 | } |
1da177e4 | 2708 | |
2cf71d2e | 2709 | vptr->mac_regs = regs; |
1da177e4 | 2710 | |
2cf71d2e | 2711 | mac_wol_reset(regs); |
1da177e4 | 2712 | |
2cf71d2e | 2713 | dev->base_addr = vptr->ioaddr; |
1da177e4 | 2714 | |
2cf71d2e DJ |
2715 | for (i = 0; i < 6; i++) |
2716 | dev->dev_addr[i] = readb(®s->PAR[i]); | |
6aa20a22 | 2717 | |
6aa20a22 | 2718 | |
2cf71d2e | 2719 | drv_string = dev_driver_string(&pdev->dev); |
1da177e4 | 2720 | |
2cf71d2e | 2721 | velocity_get_options(&vptr->options, velocity_nics, drv_string); |
1da177e4 | 2722 | |
2cf71d2e DJ |
2723 | /* |
2724 | * Mask out the options cannot be set to the chip | |
2725 | */ | |
6aa20a22 | 2726 | |
2cf71d2e | 2727 | vptr->options.flags &= info->flags; |
1da177e4 | 2728 | |
2cf71d2e DJ |
2729 | /* |
2730 | * Enable the chip specified capbilities | |
2731 | */ | |
1da177e4 | 2732 | |
2cf71d2e | 2733 | vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL); |
1da177e4 | 2734 | |
2cf71d2e DJ |
2735 | vptr->wol_opts = vptr->options.wol_opts; |
2736 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
1da177e4 | 2737 | |
2cf71d2e | 2738 | vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs); |
1da177e4 | 2739 | |
2cf71d2e DJ |
2740 | dev->irq = pdev->irq; |
2741 | dev->netdev_ops = &velocity_netdev_ops; | |
2742 | dev->ethtool_ops = &velocity_ethtool_ops; | |
6aa20a22 | 2743 | |
2cf71d2e DJ |
2744 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | |
2745 | NETIF_F_HW_VLAN_RX; | |
1da177e4 | 2746 | |
2cf71d2e DJ |
2747 | if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) |
2748 | dev->features |= NETIF_F_IP_CSUM; | |
1da177e4 | 2749 | |
2cf71d2e DJ |
2750 | ret = register_netdev(dev); |
2751 | if (ret < 0) | |
2752 | goto err_iounmap; | |
2753 | ||
2754 | if (!velocity_get_link(dev)) { | |
2755 | netif_carrier_off(dev); | |
2756 | vptr->mii_status |= VELOCITY_LINK_FAIL; | |
1da177e4 LT |
2757 | } |
2758 | ||
2cf71d2e DJ |
2759 | velocity_print_info(vptr); |
2760 | pci_set_drvdata(pdev, dev); | |
1da177e4 | 2761 | |
2cf71d2e | 2762 | /* and leave the chip powered down */ |
1da177e4 | 2763 | |
2cf71d2e | 2764 | pci_set_power_state(pdev, PCI_D3hot); |
2cf71d2e DJ |
2765 | velocity_nics++; |
2766 | out: | |
2767 | return ret; | |
2768 | ||
2769 | err_iounmap: | |
2770 | iounmap(regs); | |
2771 | err_release_res: | |
2772 | pci_release_regions(pdev); | |
2773 | err_disable: | |
2774 | pci_disable_device(pdev); | |
2775 | err_free_dev: | |
2776 | free_netdev(dev); | |
2777 | goto out; | |
1da177e4 LT |
2778 | } |
2779 | ||
2cf71d2e DJ |
2780 | |
2781 | #ifdef CONFIG_PM | |
1da177e4 LT |
2782 | /** |
2783 | * wol_calc_crc - WOL CRC | |
2784 | * @pattern: data pattern | |
2785 | * @mask_pattern: mask | |
2786 | * | |
2787 | * Compute the wake on lan crc hashes for the packet header | |
2788 | * we are interested in. | |
2789 | */ | |
c4067400 | 2790 | static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern) |
1da177e4 LT |
2791 | { |
2792 | u16 crc = 0xFFFF; | |
2793 | u8 mask; | |
2794 | int i, j; | |
2795 | ||
2796 | for (i = 0; i < size; i++) { | |
2797 | mask = mask_pattern[i]; | |
2798 | ||
2799 | /* Skip this loop if the mask equals to zero */ | |
2800 | if (mask == 0x00) | |
2801 | continue; | |
2802 | ||
2803 | for (j = 0; j < 8; j++) { | |
2804 | if ((mask & 0x01) == 0) { | |
2805 | mask >>= 1; | |
2806 | continue; | |
2807 | } | |
2808 | mask >>= 1; | |
2809 | crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1); | |
2810 | } | |
2811 | } | |
2812 | /* Finally, invert the result once to get the correct data */ | |
2813 | crc = ~crc; | |
906d66df | 2814 | return bitrev32(crc) >> 16; |
1da177e4 LT |
2815 | } |
2816 | ||
2817 | /** | |
2818 | * velocity_set_wol - set up for wake on lan | |
2819 | * @vptr: velocity to set WOL status on | |
2820 | * | |
2821 | * Set a card up for wake on lan either by unicast or by | |
2822 | * ARP packet. | |
2823 | * | |
2824 | * FIXME: check static buffer is safe here | |
2825 | */ | |
1da177e4 LT |
2826 | static int velocity_set_wol(struct velocity_info *vptr) |
2827 | { | |
c4067400 | 2828 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 LT |
2829 | static u8 buf[256]; |
2830 | int i; | |
2831 | ||
2832 | static u32 mask_pattern[2][4] = { | |
2833 | {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */ | |
2834 | {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */ | |
2835 | }; | |
2836 | ||
2837 | writew(0xFFFF, ®s->WOLCRClr); | |
2838 | writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet); | |
2839 | writew(WOLCR_MAGIC_EN, ®s->WOLCRSet); | |
2840 | ||
2841 | /* | |
2842 | if (vptr->wol_opts & VELOCITY_WOL_PHY) | |
2843 | writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet); | |
2844 | */ | |
2845 | ||
c4067400 | 2846 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) |
1da177e4 | 2847 | writew(WOLCR_UNICAST_EN, ®s->WOLCRSet); |
1da177e4 LT |
2848 | |
2849 | if (vptr->wol_opts & VELOCITY_WOL_ARP) { | |
2850 | struct arp_packet *arp = (struct arp_packet *) buf; | |
2851 | u16 crc; | |
2852 | memset(buf, 0, sizeof(struct arp_packet) + 7); | |
2853 | ||
2854 | for (i = 0; i < 4; i++) | |
2855 | writel(mask_pattern[0][i], ®s->ByteMask[0][i]); | |
2856 | ||
2857 | arp->type = htons(ETH_P_ARP); | |
2858 | arp->ar_op = htons(1); | |
2859 | ||
2860 | memcpy(arp->ar_tip, vptr->ip_addr, 4); | |
2861 | ||
2862 | crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, | |
2863 | (u8 *) & mask_pattern[0][0]); | |
2864 | ||
2865 | writew(crc, ®s->PatternCRC[0]); | |
2866 | writew(WOLCR_ARP_EN, ®s->WOLCRSet); | |
2867 | } | |
2868 | ||
2869 | BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet); | |
2870 | BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet); | |
2871 | ||
2872 | writew(0x0FFF, ®s->WOLSRClr); | |
2873 | ||
2874 | if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) { | |
2875 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) | |
2876 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); | |
2877 | ||
2878 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); | |
2879 | } | |
2880 | ||
2881 | if (vptr->mii_status & VELOCITY_SPEED_1000) | |
2882 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); | |
2883 | ||
2884 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
2885 | ||
2886 | { | |
2887 | u8 GCR; | |
2888 | GCR = readb(®s->CHIPGCR); | |
2889 | GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX; | |
2890 | writeb(GCR, ®s->CHIPGCR); | |
2891 | } | |
2892 | ||
2893 | BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR); | |
2894 | /* Turn on SWPTAG just before entering power mode */ | |
2895 | BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW); | |
2896 | /* Go to bed ..... */ | |
2897 | BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); | |
2898 | ||
2899 | return 0; | |
2900 | } | |
2901 | ||
2cf71d2e DJ |
2902 | /** |
2903 | * velocity_save_context - save registers | |
2904 | * @vptr: velocity | |
2905 | * @context: buffer for stored context | |
2906 | * | |
2907 | * Retrieve the current configuration from the velocity hardware | |
2908 | * and stash it in the context structure, for use by the context | |
2909 | * restore functions. This allows us to save things we need across | |
2910 | * power down states | |
2911 | */ | |
2912 | static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context) | |
2913 | { | |
2914 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
2915 | u16 i; | |
2916 | u8 __iomem *ptr = (u8 __iomem *)regs; | |
2917 | ||
2918 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4) | |
2919 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
2920 | ||
2921 | for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4) | |
2922 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
2923 | ||
2924 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) | |
2925 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
2926 | ||
2927 | } | |
2928 | ||
1da177e4 LT |
2929 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state) |
2930 | { | |
2931 | struct net_device *dev = pci_get_drvdata(pdev); | |
2932 | struct velocity_info *vptr = netdev_priv(dev); | |
2933 | unsigned long flags; | |
2934 | ||
c4067400 | 2935 | if (!netif_running(vptr->dev)) |
1da177e4 LT |
2936 | return 0; |
2937 | ||
2938 | netif_device_detach(vptr->dev); | |
2939 | ||
2940 | spin_lock_irqsave(&vptr->lock, flags); | |
2941 | pci_save_state(pdev); | |
2942 | #ifdef ETHTOOL_GWOL | |
2943 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) { | |
2944 | velocity_get_ip(vptr); | |
2945 | velocity_save_context(vptr, &vptr->context); | |
2946 | velocity_shutdown(vptr); | |
2947 | velocity_set_wol(vptr); | |
4a51c0d0 | 2948 | pci_enable_wake(pdev, PCI_D3hot, 1); |
1da177e4 LT |
2949 | pci_set_power_state(pdev, PCI_D3hot); |
2950 | } else { | |
2951 | velocity_save_context(vptr, &vptr->context); | |
2952 | velocity_shutdown(vptr); | |
2953 | pci_disable_device(pdev); | |
2954 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
2955 | } | |
2cf71d2e DJ |
2956 | #else |
2957 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
2958 | #endif | |
2959 | spin_unlock_irqrestore(&vptr->lock, flags); | |
2960 | return 0; | |
2961 | } | |
2962 | ||
2963 | /** | |
2964 | * velocity_restore_context - restore registers | |
2965 | * @vptr: velocity | |
2966 | * @context: buffer for stored context | |
2967 | * | |
2968 | * Reload the register configuration from the velocity context | |
2969 | * created by velocity_save_context. | |
2970 | */ | |
2971 | static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context) | |
2972 | { | |
2973 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
2974 | int i; | |
2975 | u8 __iomem *ptr = (u8 __iomem *)regs; | |
2976 | ||
2977 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) | |
2978 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
2979 | ||
2980 | /* Just skip cr0 */ | |
2981 | for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) { | |
2982 | /* Clear */ | |
2983 | writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4); | |
2984 | /* Set */ | |
2985 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); | |
2986 | } | |
2987 | ||
2988 | for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) | |
2989 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
2990 | ||
2991 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) | |
2992 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
2993 | ||
2994 | for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) | |
2995 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); | |
1da177e4 LT |
2996 | } |
2997 | ||
2998 | static int velocity_resume(struct pci_dev *pdev) | |
2999 | { | |
3000 | struct net_device *dev = pci_get_drvdata(pdev); | |
3001 | struct velocity_info *vptr = netdev_priv(dev); | |
3002 | unsigned long flags; | |
3003 | int i; | |
3004 | ||
c4067400 | 3005 | if (!netif_running(vptr->dev)) |
1da177e4 LT |
3006 | return 0; |
3007 | ||
3008 | pci_set_power_state(pdev, PCI_D0); | |
3009 | pci_enable_wake(pdev, 0, 0); | |
3010 | pci_restore_state(pdev); | |
3011 | ||
3012 | mac_wol_reset(vptr->mac_regs); | |
3013 | ||
3014 | spin_lock_irqsave(&vptr->lock, flags); | |
3015 | velocity_restore_context(vptr, &vptr->context); | |
3016 | velocity_init_registers(vptr, VELOCITY_INIT_WOL); | |
3017 | mac_disable_int(vptr->mac_regs); | |
3018 | ||
3019 | velocity_tx_srv(vptr, 0); | |
3020 | ||
0fe9f15e | 3021 | for (i = 0; i < vptr->tx.numq; i++) { |
c4067400 | 3022 | if (vptr->tx.used[i]) |
1da177e4 | 3023 | mac_tx_queue_wake(vptr->mac_regs, i); |
1da177e4 LT |
3024 | } |
3025 | ||
3026 | mac_enable_int(vptr->mac_regs); | |
3027 | spin_unlock_irqrestore(&vptr->lock, flags); | |
3028 | netif_device_attach(vptr->dev); | |
3029 | ||
3030 | return 0; | |
3031 | } | |
2cf71d2e | 3032 | #endif |
1da177e4 | 3033 | |
2cf71d2e DJ |
3034 | /* |
3035 | * Definition for our device driver. The PCI layer interface | |
3036 | * uses this to handle all our card discover and plugging | |
3037 | */ | |
3038 | static struct pci_driver velocity_driver = { | |
3039 | .name = VELOCITY_NAME, | |
3040 | .id_table = velocity_id_table, | |
3041 | .probe = velocity_found1, | |
3042 | .remove = __devexit_p(velocity_remove1), | |
3043 | #ifdef CONFIG_PM | |
3044 | .suspend = velocity_suspend, | |
3045 | .resume = velocity_resume, | |
3046 | #endif | |
3047 | }; | |
3048 | ||
3049 | ||
3050 | /** | |
3051 | * velocity_ethtool_up - pre hook for ethtool | |
3052 | * @dev: network device | |
3053 | * | |
3054 | * Called before an ethtool operation. We need to make sure the | |
3055 | * chip is out of D3 state before we poke at it. | |
3056 | */ | |
3057 | static int velocity_ethtool_up(struct net_device *dev) | |
3058 | { | |
3059 | struct velocity_info *vptr = netdev_priv(dev); | |
3060 | if (!netif_running(dev)) | |
3061 | pci_set_power_state(vptr->pdev, PCI_D0); | |
3062 | return 0; | |
3063 | } | |
3064 | ||
3065 | /** | |
3066 | * velocity_ethtool_down - post hook for ethtool | |
3067 | * @dev: network device | |
3068 | * | |
3069 | * Called after an ethtool operation. Restore the chip back to D3 | |
3070 | * state if it isn't running. | |
3071 | */ | |
3072 | static void velocity_ethtool_down(struct net_device *dev) | |
3073 | { | |
3074 | struct velocity_info *vptr = netdev_priv(dev); | |
3075 | if (!netif_running(dev)) | |
3076 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
3077 | } | |
3078 | ||
3079 | static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
3080 | { | |
3081 | struct velocity_info *vptr = netdev_priv(dev); | |
3082 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
3083 | u32 status; | |
3084 | status = check_connection_type(vptr->mac_regs); | |
3085 | ||
3086 | cmd->supported = SUPPORTED_TP | | |
3087 | SUPPORTED_Autoneg | | |
3088 | SUPPORTED_10baseT_Half | | |
3089 | SUPPORTED_10baseT_Full | | |
3090 | SUPPORTED_100baseT_Half | | |
3091 | SUPPORTED_100baseT_Full | | |
3092 | SUPPORTED_1000baseT_Half | | |
3093 | SUPPORTED_1000baseT_Full; | |
3094 | if (status & VELOCITY_SPEED_1000) | |
3095 | cmd->speed = SPEED_1000; | |
3096 | else if (status & VELOCITY_SPEED_100) | |
3097 | cmd->speed = SPEED_100; | |
3098 | else | |
3099 | cmd->speed = SPEED_10; | |
3100 | cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
3101 | cmd->port = PORT_TP; | |
3102 | cmd->transceiver = XCVR_INTERNAL; | |
3103 | cmd->phy_address = readb(®s->MIIADR) & 0x1F; | |
3104 | ||
3105 | if (status & VELOCITY_DUPLEX_FULL) | |
3106 | cmd->duplex = DUPLEX_FULL; | |
3107 | else | |
3108 | cmd->duplex = DUPLEX_HALF; | |
3109 | ||
3110 | return 0; | |
3111 | } | |
3112 | ||
3113 | static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
3114 | { | |
3115 | struct velocity_info *vptr = netdev_priv(dev); | |
3116 | u32 curr_status; | |
3117 | u32 new_status = 0; | |
3118 | int ret = 0; | |
3119 | ||
3120 | curr_status = check_connection_type(vptr->mac_regs); | |
3121 | curr_status &= (~VELOCITY_LINK_FAIL); | |
3122 | ||
3123 | new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0); | |
3124 | new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0); | |
3125 | new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0); | |
3126 | new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0); | |
3127 | ||
3128 | if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE))) | |
3129 | ret = -EINVAL; | |
3130 | else | |
3131 | velocity_set_media_mode(vptr, new_status); | |
3132 | ||
3133 | return ret; | |
3134 | } | |
3135 | ||
3136 | static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
3137 | { | |
3138 | struct velocity_info *vptr = netdev_priv(dev); | |
3139 | strcpy(info->driver, VELOCITY_NAME); | |
3140 | strcpy(info->version, VELOCITY_VERSION); | |
3141 | strcpy(info->bus_info, pci_name(vptr->pdev)); | |
3142 | } | |
3143 | ||
3144 | static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
3145 | { | |
3146 | struct velocity_info *vptr = netdev_priv(dev); | |
3147 | wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP; | |
3148 | wol->wolopts |= WAKE_MAGIC; | |
3149 | /* | |
3150 | if (vptr->wol_opts & VELOCITY_WOL_PHY) | |
3151 | wol.wolopts|=WAKE_PHY; | |
3152 | */ | |
3153 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) | |
3154 | wol->wolopts |= WAKE_UCAST; | |
3155 | if (vptr->wol_opts & VELOCITY_WOL_ARP) | |
3156 | wol->wolopts |= WAKE_ARP; | |
3157 | memcpy(&wol->sopass, vptr->wol_passwd, 6); | |
3158 | } | |
3159 | ||
3160 | static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
3161 | { | |
3162 | struct velocity_info *vptr = netdev_priv(dev); | |
3163 | ||
3164 | if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP))) | |
3165 | return -EFAULT; | |
3166 | vptr->wol_opts = VELOCITY_WOL_MAGIC; | |
3167 | ||
3168 | /* | |
3169 | if (wol.wolopts & WAKE_PHY) { | |
3170 | vptr->wol_opts|=VELOCITY_WOL_PHY; | |
3171 | vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED; | |
3172 | } | |
3173 | */ | |
3174 | ||
3175 | if (wol->wolopts & WAKE_MAGIC) { | |
3176 | vptr->wol_opts |= VELOCITY_WOL_MAGIC; | |
3177 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3178 | } | |
3179 | if (wol->wolopts & WAKE_UCAST) { | |
3180 | vptr->wol_opts |= VELOCITY_WOL_UCAST; | |
3181 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3182 | } | |
3183 | if (wol->wolopts & WAKE_ARP) { | |
3184 | vptr->wol_opts |= VELOCITY_WOL_ARP; | |
3185 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3186 | } | |
3187 | memcpy(vptr->wol_passwd, wol->sopass, 6); | |
3188 | return 0; | |
3189 | } | |
3190 | ||
3191 | static u32 velocity_get_msglevel(struct net_device *dev) | |
3192 | { | |
3193 | return msglevel; | |
3194 | } | |
3195 | ||
3196 | static void velocity_set_msglevel(struct net_device *dev, u32 value) | |
3197 | { | |
3198 | msglevel = value; | |
3199 | } | |
3200 | ||
3201 | static const struct ethtool_ops velocity_ethtool_ops = { | |
3202 | .get_settings = velocity_get_settings, | |
3203 | .set_settings = velocity_set_settings, | |
3204 | .get_drvinfo = velocity_get_drvinfo, | |
3205 | .get_wol = velocity_ethtool_get_wol, | |
3206 | .set_wol = velocity_ethtool_set_wol, | |
3207 | .get_msglevel = velocity_get_msglevel, | |
3208 | .set_msglevel = velocity_set_msglevel, | |
3209 | .get_link = velocity_get_link, | |
3210 | .begin = velocity_ethtool_up, | |
3211 | .complete = velocity_ethtool_down | |
3212 | }; | |
ce9f7fe3 | 3213 | |
2cf71d2e DJ |
3214 | #ifdef CONFIG_PM |
3215 | #ifdef CONFIG_INET | |
1da177e4 LT |
3216 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr) |
3217 | { | |
3218 | struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; | |
a337499f | 3219 | struct net_device *dev = ifa->ifa_dev->dev; |
1da177e4 | 3220 | |
516b4df1 BH |
3221 | if (dev_net(dev) == &init_net && |
3222 | dev->netdev_ops == &velocity_netdev_ops) | |
3223 | velocity_get_ip(netdev_priv(dev)); | |
a337499f | 3224 | |
1da177e4 LT |
3225 | return NOTIFY_DONE; |
3226 | } | |
2cf71d2e DJ |
3227 | #endif /* CONFIG_INET */ |
3228 | #endif /* CONFIG_PM */ | |
ce9f7fe3 | 3229 | |
2cf71d2e DJ |
3230 | #if defined(CONFIG_PM) && defined(CONFIG_INET) |
3231 | static struct notifier_block velocity_inetaddr_notifier = { | |
3232 | .notifier_call = velocity_netdev_event, | |
3233 | }; | |
3234 | ||
3235 | static void velocity_register_notifier(void) | |
3236 | { | |
3237 | register_inetaddr_notifier(&velocity_inetaddr_notifier); | |
3238 | } | |
3239 | ||
3240 | static void velocity_unregister_notifier(void) | |
3241 | { | |
3242 | unregister_inetaddr_notifier(&velocity_inetaddr_notifier); | |
3243 | } | |
3244 | ||
3245 | #else | |
3246 | ||
3247 | #define velocity_register_notifier() do {} while (0) | |
3248 | #define velocity_unregister_notifier() do {} while (0) | |
3249 | ||
3250 | #endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */ | |
3251 | ||
3252 | /** | |
3253 | * velocity_init_module - load time function | |
3254 | * | |
3255 | * Called when the velocity module is loaded. The PCI driver | |
3256 | * is registered with the PCI layer, and in turn will call | |
3257 | * the probe functions for each velocity adapter installed | |
3258 | * in the system. | |
3259 | */ | |
3260 | static int __init velocity_init_module(void) | |
3261 | { | |
3262 | int ret; | |
3263 | ||
3264 | velocity_register_notifier(); | |
3265 | ret = pci_register_driver(&velocity_driver); | |
3266 | if (ret < 0) | |
3267 | velocity_unregister_notifier(); | |
3268 | return ret; | |
3269 | } | |
3270 | ||
3271 | /** | |
3272 | * velocity_cleanup - module unload | |
3273 | * | |
3274 | * When the velocity hardware is unloaded this function is called. | |
3275 | * It will clean up the notifiers and the unregister the PCI | |
3276 | * driver interface for this hardware. This in turn cleans up | |
3277 | * all discovered interfaces before returning from the function | |
3278 | */ | |
3279 | static void __exit velocity_cleanup_module(void) | |
3280 | { | |
3281 | velocity_unregister_notifier(); | |
3282 | pci_unregister_driver(&velocity_driver); | |
3283 | } | |
3284 | ||
3285 | module_init(velocity_init_module); | |
3286 | module_exit(velocity_cleanup_module); |