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 | 11 | * rx_copybreak/alignment |
1da177e4 LT |
12 | * More testing |
13 | * | |
113aa838 | 14 | * The changes are (c) Copyright 2004, Red Hat Inc. <alan@lxorguk.ukuu.org.uk> |
1da177e4 LT |
15 | * Additional fixes and clean up: Francois Romieu |
16 | * | |
17 | * This source has not been verified for use in safety critical systems. | |
18 | * | |
19 | * Please direct queries about the revamped driver to the linux-kernel | |
20 | * list not VIA. | |
21 | * | |
22 | * Original code: | |
23 | * | |
24 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. | |
25 | * All rights reserved. | |
26 | * | |
27 | * This software may be redistributed and/or modified under | |
28 | * the terms of the GNU General Public License as published by the Free | |
29 | * Software Foundation; either version 2 of the License, or | |
30 | * any later version. | |
31 | * | |
32 | * This program is distributed in the hope that it will be useful, but | |
33 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
34 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
35 | * for more details. | |
36 | * | |
37 | * Author: Chuang Liang-Shing, AJ Jiang | |
38 | * | |
39 | * Date: Jan 24, 2003 | |
40 | * | |
41 | * MODULE_LICENSE("GPL"); | |
42 | * | |
43 | */ | |
44 | ||
45 | ||
46 | #include <linux/module.h> | |
47 | #include <linux/types.h> | |
1da177e4 LT |
48 | #include <linux/init.h> |
49 | #include <linux/mm.h> | |
50 | #include <linux/errno.h> | |
51 | #include <linux/ioport.h> | |
52 | #include <linux/pci.h> | |
53 | #include <linux/kernel.h> | |
54 | #include <linux/netdevice.h> | |
55 | #include <linux/etherdevice.h> | |
56 | #include <linux/skbuff.h> | |
57 | #include <linux/delay.h> | |
58 | #include <linux/timer.h> | |
59 | #include <linux/slab.h> | |
60 | #include <linux/interrupt.h> | |
1da177e4 LT |
61 | #include <linux/string.h> |
62 | #include <linux/wait.h> | |
c4067400 | 63 | #include <linux/io.h> |
1da177e4 | 64 | #include <linux/if.h> |
c4067400 | 65 | #include <linux/uaccess.h> |
1da177e4 LT |
66 | #include <linux/proc_fs.h> |
67 | #include <linux/inetdevice.h> | |
68 | #include <linux/reboot.h> | |
69 | #include <linux/ethtool.h> | |
70 | #include <linux/mii.h> | |
71 | #include <linux/in.h> | |
72 | #include <linux/if_arp.h> | |
501e4d24 | 73 | #include <linux/if_vlan.h> |
1da177e4 LT |
74 | #include <linux/ip.h> |
75 | #include <linux/tcp.h> | |
76 | #include <linux/udp.h> | |
77 | #include <linux/crc-ccitt.h> | |
78 | #include <linux/crc32.h> | |
79 | ||
80 | #include "via-velocity.h" | |
81 | ||
82 | ||
c4067400 | 83 | static int velocity_nics; |
1da177e4 LT |
84 | static int msglevel = MSG_LEVEL_INFO; |
85 | ||
01faccbf SH |
86 | /** |
87 | * mac_get_cam_mask - Read a CAM mask | |
88 | * @regs: register block for this velocity | |
89 | * @mask: buffer to store mask | |
90 | * | |
91 | * Fetch the mask bits of the selected CAM and store them into the | |
92 | * provided mask buffer. | |
93 | */ | |
c4067400 | 94 | static void mac_get_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
01faccbf SH |
95 | { |
96 | int i; | |
97 | ||
98 | /* Select CAM mask */ | |
99 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
100 | ||
101 | writeb(0, ®s->CAMADDR); | |
102 | ||
103 | /* read mask */ | |
104 | for (i = 0; i < 8; i++) | |
105 | *mask++ = readb(&(regs->MARCAM[i])); | |
106 | ||
107 | /* disable CAMEN */ | |
108 | writeb(0, ®s->CAMADDR); | |
109 | ||
110 | /* Select mar */ | |
111 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
01faccbf SH |
112 | } |
113 | ||
114 | ||
115 | /** | |
116 | * mac_set_cam_mask - Set a CAM mask | |
117 | * @regs: register block for this velocity | |
118 | * @mask: CAM mask to load | |
119 | * | |
120 | * Store a new mask into a CAM | |
121 | */ | |
c4067400 | 122 | static void mac_set_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
01faccbf SH |
123 | { |
124 | int i; | |
125 | /* Select CAM mask */ | |
126 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
127 | ||
128 | writeb(CAMADDR_CAMEN, ®s->CAMADDR); | |
129 | ||
c4067400 | 130 | for (i = 0; i < 8; i++) |
01faccbf | 131 | writeb(*mask++, &(regs->MARCAM[i])); |
c4067400 | 132 | |
01faccbf SH |
133 | /* disable CAMEN */ |
134 | writeb(0, ®s->CAMADDR); | |
135 | ||
136 | /* Select mar */ | |
137 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
138 | } | |
139 | ||
c4067400 | 140 | static void mac_set_vlan_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
01faccbf SH |
141 | { |
142 | int i; | |
143 | /* Select CAM mask */ | |
144 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
145 | ||
146 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR); | |
147 | ||
c4067400 | 148 | for (i = 0; i < 8; i++) |
01faccbf | 149 | writeb(*mask++, &(regs->MARCAM[i])); |
c4067400 | 150 | |
01faccbf SH |
151 | /* disable CAMEN */ |
152 | writeb(0, ®s->CAMADDR); | |
153 | ||
154 | /* Select mar */ | |
155 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
156 | } | |
157 | ||
158 | /** | |
159 | * mac_set_cam - set CAM data | |
160 | * @regs: register block of this velocity | |
161 | * @idx: Cam index | |
162 | * @addr: 2 or 6 bytes of CAM data | |
163 | * | |
164 | * Load an address or vlan tag into a CAM | |
165 | */ | |
c4067400 | 166 | static void mac_set_cam(struct mac_regs __iomem *regs, int idx, const u8 *addr) |
01faccbf SH |
167 | { |
168 | int i; | |
169 | ||
170 | /* Select CAM mask */ | |
171 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
172 | ||
173 | idx &= (64 - 1); | |
174 | ||
175 | writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR); | |
176 | ||
c4067400 | 177 | for (i = 0; i < 6; i++) |
01faccbf | 178 | writeb(*addr++, &(regs->MARCAM[i])); |
c4067400 | 179 | |
01faccbf SH |
180 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); |
181 | ||
182 | udelay(10); | |
183 | ||
184 | writeb(0, ®s->CAMADDR); | |
185 | ||
186 | /* Select mar */ | |
187 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
188 | } | |
189 | ||
c4067400 | 190 | static void mac_set_vlan_cam(struct mac_regs __iomem *regs, int idx, |
01faccbf SH |
191 | const u8 *addr) |
192 | { | |
193 | ||
194 | /* Select CAM mask */ | |
195 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
196 | ||
197 | idx &= (64 - 1); | |
198 | ||
199 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR); | |
200 | writew(*((u16 *) addr), ®s->MARCAM[0]); | |
201 | ||
202 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); | |
203 | ||
204 | udelay(10); | |
205 | ||
206 | writeb(0, ®s->CAMADDR); | |
207 | ||
208 | /* Select mar */ | |
209 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
210 | } | |
211 | ||
212 | ||
213 | /** | |
214 | * mac_wol_reset - reset WOL after exiting low power | |
215 | * @regs: register block of this velocity | |
216 | * | |
217 | * Called after we drop out of wake on lan mode in order to | |
218 | * reset the Wake on lan features. This function doesn't restore | |
219 | * the rest of the logic from the result of sleep/wakeup | |
220 | */ | |
c4067400 | 221 | static void mac_wol_reset(struct mac_regs __iomem *regs) |
01faccbf SH |
222 | { |
223 | ||
224 | /* Turn off SWPTAG right after leaving power mode */ | |
225 | BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW); | |
226 | /* clear sticky bits */ | |
227 | BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); | |
228 | ||
229 | BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR); | |
230 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
231 | /* disable force PME-enable */ | |
232 | writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr); | |
233 | /* disable power-event config bit */ | |
234 | writew(0xFFFF, ®s->WOLCRClr); | |
235 | /* clear power status */ | |
236 | writew(0xFFFF, ®s->WOLSRClr); | |
237 | } | |
1da177e4 | 238 | |
7282d491 | 239 | static const struct ethtool_ops velocity_ethtool_ops; |
1da177e4 LT |
240 | |
241 | /* | |
242 | Define module options | |
243 | */ | |
244 | ||
245 | MODULE_AUTHOR("VIA Networking Technologies, Inc."); | |
246 | MODULE_LICENSE("GPL"); | |
247 | MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"); | |
248 | ||
c4067400 DJ |
249 | #define VELOCITY_PARAM(N, D) \ |
250 | static int N[MAX_UNITS] = OPTION_DEFAULT;\ | |
1da177e4 | 251 | module_param_array(N, int, NULL, 0); \ |
c4067400 | 252 | MODULE_PARM_DESC(N, D); |
1da177e4 LT |
253 | |
254 | #define RX_DESC_MIN 64 | |
255 | #define RX_DESC_MAX 255 | |
256 | #define RX_DESC_DEF 64 | |
257 | VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors"); | |
258 | ||
259 | #define TX_DESC_MIN 16 | |
260 | #define TX_DESC_MAX 256 | |
261 | #define TX_DESC_DEF 64 | |
262 | VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors"); | |
263 | ||
1da177e4 LT |
264 | #define RX_THRESH_MIN 0 |
265 | #define RX_THRESH_MAX 3 | |
266 | #define RX_THRESH_DEF 0 | |
267 | /* rx_thresh[] is used for controlling the receive fifo threshold. | |
268 | 0: indicate the rxfifo threshold is 128 bytes. | |
269 | 1: indicate the rxfifo threshold is 512 bytes. | |
270 | 2: indicate the rxfifo threshold is 1024 bytes. | |
271 | 3: indicate the rxfifo threshold is store & forward. | |
272 | */ | |
273 | VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); | |
274 | ||
275 | #define DMA_LENGTH_MIN 0 | |
276 | #define DMA_LENGTH_MAX 7 | |
2a5774f7 | 277 | #define DMA_LENGTH_DEF 6 |
1da177e4 LT |
278 | |
279 | /* DMA_length[] is used for controlling the DMA length | |
280 | 0: 8 DWORDs | |
281 | 1: 16 DWORDs | |
282 | 2: 32 DWORDs | |
283 | 3: 64 DWORDs | |
284 | 4: 128 DWORDs | |
285 | 5: 256 DWORDs | |
286 | 6: SF(flush till emply) | |
287 | 7: SF(flush till emply) | |
288 | */ | |
289 | VELOCITY_PARAM(DMA_length, "DMA length"); | |
290 | ||
1da177e4 LT |
291 | #define IP_ALIG_DEF 0 |
292 | /* IP_byte_align[] is used for IP header DWORD byte aligned | |
293 | 0: indicate the IP header won't be DWORD byte aligned.(Default) . | |
294 | 1: indicate the IP header will be DWORD byte aligned. | |
295 | In some enviroment, the IP header should be DWORD byte aligned, | |
296 | or the packet will be droped when we receive it. (eg: IPVS) | |
297 | */ | |
298 | VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); | |
299 | ||
1da177e4 LT |
300 | #define FLOW_CNTL_DEF 1 |
301 | #define FLOW_CNTL_MIN 1 | |
302 | #define FLOW_CNTL_MAX 5 | |
303 | ||
304 | /* flow_control[] is used for setting the flow control ability of NIC. | |
305 | 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR. | |
306 | 2: enable TX flow control. | |
307 | 3: enable RX flow control. | |
308 | 4: enable RX/TX flow control. | |
309 | 5: disable | |
310 | */ | |
311 | VELOCITY_PARAM(flow_control, "Enable flow control ability"); | |
312 | ||
313 | #define MED_LNK_DEF 0 | |
314 | #define MED_LNK_MIN 0 | |
15419227 | 315 | #define MED_LNK_MAX 5 |
1da177e4 LT |
316 | /* speed_duplex[] is used for setting the speed and duplex mode of NIC. |
317 | 0: indicate autonegotiation for both speed and duplex mode | |
318 | 1: indicate 100Mbps half duplex mode | |
319 | 2: indicate 100Mbps full duplex mode | |
320 | 3: indicate 10Mbps half duplex mode | |
321 | 4: indicate 10Mbps full duplex mode | |
15419227 | 322 | 5: indicate 1000Mbps full duplex mode |
1da177e4 LT |
323 | |
324 | Note: | |
c4067400 DJ |
325 | if EEPROM have been set to the force mode, this option is ignored |
326 | by driver. | |
1da177e4 LT |
327 | */ |
328 | VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode"); | |
329 | ||
330 | #define VAL_PKT_LEN_DEF 0 | |
331 | /* ValPktLen[] is used for setting the checksum offload ability of NIC. | |
332 | 0: Receive frame with invalid layer 2 length (Default) | |
333 | 1: Drop frame with invalid layer 2 length | |
334 | */ | |
335 | VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); | |
336 | ||
337 | #define WOL_OPT_DEF 0 | |
338 | #define WOL_OPT_MIN 0 | |
339 | #define WOL_OPT_MAX 7 | |
340 | /* wol_opts[] is used for controlling wake on lan behavior. | |
341 | 0: Wake up if recevied a magic packet. (Default) | |
342 | 1: Wake up if link status is on/off. | |
343 | 2: Wake up if recevied an arp packet. | |
344 | 4: Wake up if recevied any unicast packet. | |
345 | Those value can be sumed up to support more than one option. | |
346 | */ | |
347 | VELOCITY_PARAM(wol_opts, "Wake On Lan options"); | |
348 | ||
1da177e4 LT |
349 | static int rx_copybreak = 200; |
350 | module_param(rx_copybreak, int, 0644); | |
351 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); | |
352 | ||
1da177e4 LT |
353 | /* |
354 | * Internal board variants. At the moment we have only one | |
355 | */ | |
4f14b92f | 356 | static struct velocity_info_tbl chip_info_table[] = { |
cabb7667 JG |
357 | {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL}, |
358 | { } | |
1da177e4 LT |
359 | }; |
360 | ||
361 | /* | |
362 | * Describe the PCI device identifiers that we support in this | |
363 | * device driver. Used for hotplug autoloading. | |
364 | */ | |
a3aa1884 | 365 | static DEFINE_PCI_DEVICE_TABLE(velocity_id_table) = { |
e54f4893 JG |
366 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) }, |
367 | { } | |
1da177e4 LT |
368 | }; |
369 | ||
370 | MODULE_DEVICE_TABLE(pci, velocity_id_table); | |
371 | ||
372 | /** | |
373 | * get_chip_name - identifier to name | |
374 | * @id: chip identifier | |
375 | * | |
376 | * Given a chip identifier return a suitable description. Returns | |
377 | * a pointer a static string valid while the driver is loaded. | |
378 | */ | |
01faccbf | 379 | static const char __devinit *get_chip_name(enum chip_type chip_id) |
1da177e4 LT |
380 | { |
381 | int i; | |
382 | for (i = 0; chip_info_table[i].name != NULL; i++) | |
383 | if (chip_info_table[i].chip_id == chip_id) | |
384 | break; | |
385 | return chip_info_table[i].name; | |
386 | } | |
387 | ||
388 | /** | |
389 | * velocity_remove1 - device unplug | |
390 | * @pdev: PCI device being removed | |
391 | * | |
392 | * Device unload callback. Called on an unplug or on module | |
393 | * unload for each active device that is present. Disconnects | |
394 | * the device from the network layer and frees all the resources | |
395 | */ | |
1da177e4 LT |
396 | static void __devexit velocity_remove1(struct pci_dev *pdev) |
397 | { | |
398 | struct net_device *dev = pci_get_drvdata(pdev); | |
8ab6f3f7 | 399 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 400 | |
1da177e4 LT |
401 | unregister_netdev(dev); |
402 | iounmap(vptr->mac_regs); | |
403 | pci_release_regions(pdev); | |
404 | pci_disable_device(pdev); | |
405 | pci_set_drvdata(pdev, NULL); | |
406 | free_netdev(dev); | |
407 | ||
408 | velocity_nics--; | |
409 | } | |
410 | ||
411 | /** | |
412 | * velocity_set_int_opt - parser for integer options | |
413 | * @opt: pointer to option value | |
414 | * @val: value the user requested (or -1 for default) | |
415 | * @min: lowest value allowed | |
416 | * @max: highest value allowed | |
417 | * @def: default value | |
418 | * @name: property name | |
419 | * @dev: device name | |
420 | * | |
421 | * Set an integer property in the module options. This function does | |
422 | * all the verification and checking as well as reporting so that | |
423 | * we don't duplicate code for each option. | |
424 | */ | |
07b5f6a6 | 425 | static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname) |
1da177e4 LT |
426 | { |
427 | if (val == -1) | |
428 | *opt = def; | |
429 | else if (val < min || val > max) { | |
430 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n", | |
431 | devname, name, min, max); | |
432 | *opt = def; | |
433 | } else { | |
434 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n", | |
435 | devname, name, val); | |
436 | *opt = val; | |
437 | } | |
438 | } | |
439 | ||
440 | /** | |
441 | * velocity_set_bool_opt - parser for boolean options | |
442 | * @opt: pointer to option value | |
443 | * @val: value the user requested (or -1 for default) | |
444 | * @def: default value (yes/no) | |
445 | * @flag: numeric value to set for true. | |
446 | * @name: property name | |
447 | * @dev: device name | |
448 | * | |
449 | * Set a boolean property in the module options. This function does | |
450 | * all the verification and checking as well as reporting so that | |
451 | * we don't duplicate code for each option. | |
452 | */ | |
c4067400 | 453 | static void __devinit velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag, char *name, const char *devname) |
1da177e4 LT |
454 | { |
455 | (*opt) &= (~flag); | |
456 | if (val == -1) | |
457 | *opt |= (def ? flag : 0); | |
458 | else if (val < 0 || val > 1) { | |
6aa20a22 | 459 | printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n", |
1da177e4 LT |
460 | devname, name); |
461 | *opt |= (def ? flag : 0); | |
462 | } else { | |
6aa20a22 | 463 | printk(KERN_INFO "%s: set parameter %s to %s\n", |
1da177e4 LT |
464 | devname, name, val ? "TRUE" : "FALSE"); |
465 | *opt |= (val ? flag : 0); | |
466 | } | |
467 | } | |
468 | ||
469 | /** | |
470 | * velocity_get_options - set options on device | |
471 | * @opts: option structure for the device | |
472 | * @index: index of option to use in module options array | |
473 | * @devname: device name | |
474 | * | |
475 | * Turn the module and command options into a single structure | |
476 | * for the current device | |
477 | */ | |
07b5f6a6 | 478 | static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname) |
1da177e4 LT |
479 | { |
480 | ||
481 | velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname); | |
482 | velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname); | |
483 | velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname); | |
484 | velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname); | |
501e4d24 | 485 | |
1da177e4 LT |
486 | velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname); |
487 | velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname); | |
488 | velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname); | |
489 | velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname); | |
490 | 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); | |
1da177e4 LT |
491 | opts->numrx = (opts->numrx & ~3); |
492 | } | |
493 | ||
494 | /** | |
495 | * velocity_init_cam_filter - initialise CAM | |
496 | * @vptr: velocity to program | |
497 | * | |
498 | * Initialize the content addressable memory used for filters. Load | |
499 | * appropriately according to the presence of VLAN | |
500 | */ | |
1da177e4 LT |
501 | static void velocity_init_cam_filter(struct velocity_info *vptr) |
502 | { | |
c4067400 | 503 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 LT |
504 | |
505 | /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */ | |
506 | WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG); | |
507 | WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG); | |
508 | ||
509 | /* Disable all CAMs */ | |
510 | memset(vptr->vCAMmask, 0, sizeof(u8) * 8); | |
511 | memset(vptr->mCAMmask, 0, sizeof(u8) * 8); | |
01faccbf SH |
512 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
513 | mac_set_cam_mask(regs, vptr->mCAMmask); | |
1da177e4 | 514 | |
d4f73c8e | 515 | /* Enable VCAMs */ |
501e4d24 | 516 | if (vptr->vlgrp) { |
d4f73c8e FR |
517 | unsigned int vid, i = 0; |
518 | ||
519 | if (!vlan_group_get_device(vptr->vlgrp, 0)) | |
520 | WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG); | |
501e4d24 | 521 | |
d4f73c8e FR |
522 | for (vid = 1; (vid < VLAN_VID_MASK); vid++) { |
523 | if (vlan_group_get_device(vptr->vlgrp, vid)) { | |
524 | mac_set_vlan_cam(regs, i, (u8 *) &vid); | |
525 | vptr->vCAMmask[i / 8] |= 0x1 << (i % 8); | |
526 | if (++i >= VCAM_SIZE) | |
527 | break; | |
501e4d24 SH |
528 | } |
529 | } | |
01faccbf | 530 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
1da177e4 LT |
531 | } |
532 | } | |
533 | ||
d4f73c8e FR |
534 | static void velocity_vlan_rx_register(struct net_device *dev, |
535 | struct vlan_group *grp) | |
536 | { | |
537 | struct velocity_info *vptr = netdev_priv(dev); | |
538 | ||
539 | vptr->vlgrp = grp; | |
540 | } | |
541 | ||
501e4d24 SH |
542 | static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
543 | { | |
544 | struct velocity_info *vptr = netdev_priv(dev); | |
545 | ||
c4067400 | 546 | spin_lock_irq(&vptr->lock); |
501e4d24 | 547 | velocity_init_cam_filter(vptr); |
c4067400 | 548 | spin_unlock_irq(&vptr->lock); |
501e4d24 SH |
549 | } |
550 | ||
551 | static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
552 | { | |
553 | struct velocity_info *vptr = netdev_priv(dev); | |
554 | ||
c4067400 | 555 | spin_lock_irq(&vptr->lock); |
501e4d24 SH |
556 | vlan_group_set_device(vptr->vlgrp, vid, NULL); |
557 | velocity_init_cam_filter(vptr); | |
c4067400 | 558 | spin_unlock_irq(&vptr->lock); |
501e4d24 SH |
559 | } |
560 | ||
3c4dc711 FR |
561 | static void velocity_init_rx_ring_indexes(struct velocity_info *vptr) |
562 | { | |
563 | vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0; | |
564 | } | |
501e4d24 | 565 | |
1da177e4 LT |
566 | /** |
567 | * velocity_rx_reset - handle a receive reset | |
568 | * @vptr: velocity we are resetting | |
569 | * | |
570 | * Reset the ownership and status for the receive ring side. | |
571 | * Hand all the receive queue to the NIC. | |
572 | */ | |
1da177e4 LT |
573 | static void velocity_rx_reset(struct velocity_info *vptr) |
574 | { | |
575 | ||
c4067400 | 576 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 LT |
577 | int i; |
578 | ||
3c4dc711 | 579 | velocity_init_rx_ring_indexes(vptr); |
1da177e4 LT |
580 | |
581 | /* | |
582 | * Init state, all RD entries belong to the NIC | |
583 | */ | |
584 | for (i = 0; i < vptr->options.numrx; ++i) | |
0fe9f15e | 585 | vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC; |
1da177e4 LT |
586 | |
587 | writew(vptr->options.numrx, ®s->RBRDU); | |
0fe9f15e | 588 | writel(vptr->rx.pool_dma, ®s->RDBaseLo); |
1da177e4 LT |
589 | writew(0, ®s->RDIdx); |
590 | writew(vptr->options.numrx - 1, ®s->RDCSize); | |
591 | } | |
592 | ||
593 | /** | |
2cf71d2e DJ |
594 | * velocity_get_opt_media_mode - get media selection |
595 | * @vptr: velocity adapter | |
1da177e4 | 596 | * |
2cf71d2e DJ |
597 | * Get the media mode stored in EEPROM or module options and load |
598 | * mii_status accordingly. The requested link state information | |
599 | * is also returned. | |
1da177e4 | 600 | */ |
2cf71d2e | 601 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr) |
1da177e4 | 602 | { |
2cf71d2e | 603 | u32 status = 0; |
1da177e4 | 604 | |
2cf71d2e DJ |
605 | switch (vptr->options.spd_dpx) { |
606 | case SPD_DPX_AUTO: | |
607 | status = VELOCITY_AUTONEG_ENABLE; | |
1da177e4 | 608 | break; |
2cf71d2e DJ |
609 | case SPD_DPX_100_FULL: |
610 | status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL; | |
611 | break; | |
612 | case SPD_DPX_10_FULL: | |
613 | status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL; | |
614 | break; | |
615 | case SPD_DPX_100_HALF: | |
616 | status = VELOCITY_SPEED_100; | |
617 | break; | |
618 | case SPD_DPX_10_HALF: | |
619 | status = VELOCITY_SPEED_10; | |
620 | break; | |
15419227 | 621 | case SPD_DPX_1000_FULL: |
622 | status = VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; | |
623 | break; | |
2cf71d2e DJ |
624 | } |
625 | vptr->mii_status = status; | |
626 | return status; | |
627 | } | |
1da177e4 | 628 | |
2cf71d2e DJ |
629 | /** |
630 | * safe_disable_mii_autopoll - autopoll off | |
631 | * @regs: velocity registers | |
632 | * | |
633 | * Turn off the autopoll and wait for it to disable on the chip | |
634 | */ | |
635 | static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs) | |
636 | { | |
637 | u16 ww; | |
1da177e4 | 638 | |
2cf71d2e DJ |
639 | /* turn off MAUTO */ |
640 | writeb(0, ®s->MIICR); | |
641 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
642 | udelay(1); | |
643 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
644 | break; | |
645 | } | |
646 | } | |
1da177e4 | 647 | |
2cf71d2e DJ |
648 | /** |
649 | * enable_mii_autopoll - turn on autopolling | |
650 | * @regs: velocity registers | |
651 | * | |
652 | * Enable the MII link status autopoll feature on the Velocity | |
653 | * hardware. Wait for it to enable. | |
654 | */ | |
655 | static void enable_mii_autopoll(struct mac_regs __iomem *regs) | |
656 | { | |
657 | int ii; | |
1da177e4 | 658 | |
2cf71d2e DJ |
659 | writeb(0, &(regs->MIICR)); |
660 | writeb(MIIADR_SWMPL, ®s->MIIADR); | |
1da177e4 | 661 | |
2cf71d2e DJ |
662 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
663 | udelay(1); | |
664 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
665 | break; | |
666 | } | |
1da177e4 | 667 | |
2cf71d2e | 668 | writeb(MIICR_MAUTO, ®s->MIICR); |
1da177e4 | 669 | |
2cf71d2e DJ |
670 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
671 | udelay(1); | |
672 | if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
673 | break; | |
674 | } | |
1da177e4 | 675 | |
2cf71d2e | 676 | } |
1da177e4 | 677 | |
2cf71d2e DJ |
678 | /** |
679 | * velocity_mii_read - read MII data | |
680 | * @regs: velocity registers | |
681 | * @index: MII register index | |
682 | * @data: buffer for received data | |
683 | * | |
684 | * Perform a single read of an MII 16bit register. Returns zero | |
685 | * on success or -ETIMEDOUT if the PHY did not respond. | |
686 | */ | |
687 | static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data) | |
688 | { | |
689 | u16 ww; | |
1da177e4 | 690 | |
2cf71d2e DJ |
691 | /* |
692 | * Disable MIICR_MAUTO, so that mii addr can be set normally | |
693 | */ | |
694 | safe_disable_mii_autopoll(regs); | |
1da177e4 | 695 | |
2cf71d2e | 696 | writeb(index, ®s->MIIADR); |
1da177e4 | 697 | |
2cf71d2e | 698 | BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR); |
1da177e4 | 699 | |
2cf71d2e DJ |
700 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
701 | if (!(readb(®s->MIICR) & MIICR_RCMD)) | |
702 | break; | |
703 | } | |
1da177e4 | 704 | |
2cf71d2e | 705 | *data = readw(®s->MIIDATA); |
1da177e4 | 706 | |
2cf71d2e DJ |
707 | enable_mii_autopoll(regs); |
708 | if (ww == W_MAX_TIMEOUT) | |
709 | return -ETIMEDOUT; | |
710 | return 0; | |
1da177e4 LT |
711 | } |
712 | ||
2cf71d2e | 713 | |
1da177e4 | 714 | /** |
2cf71d2e DJ |
715 | * mii_check_media_mode - check media state |
716 | * @regs: velocity registers | |
1da177e4 | 717 | * |
2cf71d2e DJ |
718 | * Check the current MII status and determine the link status |
719 | * accordingly | |
1da177e4 | 720 | */ |
2cf71d2e | 721 | static u32 mii_check_media_mode(struct mac_regs __iomem *regs) |
1da177e4 | 722 | { |
2cf71d2e DJ |
723 | u32 status = 0; |
724 | u16 ANAR; | |
1da177e4 | 725 | |
3a7f8681 | 726 | if (!MII_REG_BITS_IS_ON(BMSR_LSTATUS, MII_BMSR, regs)) |
2cf71d2e | 727 | status |= VELOCITY_LINK_FAIL; |
1da177e4 | 728 | |
3a7f8681 | 729 | if (MII_REG_BITS_IS_ON(ADVERTISE_1000FULL, MII_CTRL1000, regs)) |
2cf71d2e | 730 | status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; |
3a7f8681 | 731 | else if (MII_REG_BITS_IS_ON(ADVERTISE_1000HALF, MII_CTRL1000, regs)) |
2cf71d2e DJ |
732 | status |= (VELOCITY_SPEED_1000); |
733 | else { | |
3a7f8681 FR |
734 | velocity_mii_read(regs, MII_ADVERTISE, &ANAR); |
735 | if (ANAR & ADVERTISE_100FULL) | |
2cf71d2e | 736 | status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL); |
3a7f8681 | 737 | else if (ANAR & ADVERTISE_100HALF) |
2cf71d2e | 738 | status |= VELOCITY_SPEED_100; |
3a7f8681 | 739 | else if (ANAR & ADVERTISE_10FULL) |
2cf71d2e DJ |
740 | status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL); |
741 | else | |
742 | status |= (VELOCITY_SPEED_10); | |
1da177e4 LT |
743 | } |
744 | ||
3a7f8681 FR |
745 | if (MII_REG_BITS_IS_ON(BMCR_ANENABLE, MII_BMCR, regs)) { |
746 | velocity_mii_read(regs, MII_ADVERTISE, &ANAR); | |
747 | if ((ANAR & (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)) | |
748 | == (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)) { | |
749 | if (MII_REG_BITS_IS_ON(ADVERTISE_1000HALF | ADVERTISE_1000FULL, MII_CTRL1000, regs)) | |
2cf71d2e DJ |
750 | status |= VELOCITY_AUTONEG_ENABLE; |
751 | } | |
1da177e4 | 752 | } |
1da177e4 | 753 | |
2cf71d2e DJ |
754 | return status; |
755 | } | |
39a11bd9 | 756 | |
1da177e4 | 757 | /** |
2cf71d2e DJ |
758 | * velocity_mii_write - write MII data |
759 | * @regs: velocity registers | |
760 | * @index: MII register index | |
761 | * @data: 16bit data for the MII register | |
1da177e4 | 762 | * |
2cf71d2e DJ |
763 | * Perform a single write to an MII 16bit register. Returns zero |
764 | * on success or -ETIMEDOUT if the PHY did not respond. | |
1da177e4 | 765 | */ |
2cf71d2e | 766 | static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data) |
1da177e4 | 767 | { |
2cf71d2e | 768 | u16 ww; |
1da177e4 | 769 | |
2cf71d2e DJ |
770 | /* |
771 | * Disable MIICR_MAUTO, so that mii addr can be set normally | |
e54f4893 | 772 | */ |
2cf71d2e | 773 | safe_disable_mii_autopoll(regs); |
1da177e4 | 774 | |
2cf71d2e DJ |
775 | /* MII reg offset */ |
776 | writeb(mii_addr, ®s->MIIADR); | |
777 | /* set MII data */ | |
778 | writew(data, ®s->MIIDATA); | |
779 | ||
780 | /* turn on MIICR_WCMD */ | |
781 | BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR); | |
782 | ||
783 | /* W_MAX_TIMEOUT is the timeout period */ | |
784 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
785 | udelay(5); | |
786 | if (!(readb(®s->MIICR) & MIICR_WCMD)) | |
787 | break; | |
1da177e4 | 788 | } |
2cf71d2e | 789 | enable_mii_autopoll(regs); |
6aa20a22 | 790 | |
2cf71d2e DJ |
791 | if (ww == W_MAX_TIMEOUT) |
792 | return -ETIMEDOUT; | |
793 | return 0; | |
794 | } | |
6aa20a22 | 795 | |
2cf71d2e DJ |
796 | /** |
797 | * set_mii_flow_control - flow control setup | |
798 | * @vptr: velocity interface | |
799 | * | |
800 | * Set up the flow control on this interface according to | |
801 | * the supplied user/eeprom options. | |
802 | */ | |
803 | static void set_mii_flow_control(struct velocity_info *vptr) | |
804 | { | |
805 | /*Enable or Disable PAUSE in ANAR */ | |
806 | switch (vptr->options.flow_cntl) { | |
807 | case FLOW_CNTL_TX: | |
3a7f8681 FR |
808 | MII_REG_BITS_OFF(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs); |
809 | MII_REG_BITS_ON(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs); | |
2cf71d2e | 810 | break; |
1da177e4 | 811 | |
2cf71d2e | 812 | case FLOW_CNTL_RX: |
3a7f8681 FR |
813 | MII_REG_BITS_ON(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs); |
814 | MII_REG_BITS_ON(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs); | |
2cf71d2e | 815 | break; |
1da177e4 | 816 | |
2cf71d2e | 817 | case FLOW_CNTL_TX_RX: |
3a7f8681 | 818 | MII_REG_BITS_ON(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs); |
4a35ecf8 | 819 | MII_REG_BITS_OFF(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs); |
2cf71d2e | 820 | break; |
1da177e4 | 821 | |
2cf71d2e | 822 | case FLOW_CNTL_DISABLE: |
3a7f8681 FR |
823 | MII_REG_BITS_OFF(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs); |
824 | MII_REG_BITS_OFF(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs); | |
2cf71d2e DJ |
825 | break; |
826 | default: | |
827 | break; | |
828 | } | |
829 | } | |
1da177e4 | 830 | |
2cf71d2e DJ |
831 | /** |
832 | * mii_set_auto_on - autonegotiate on | |
833 | * @vptr: velocity | |
834 | * | |
835 | * Enable autonegotation on this interface | |
836 | */ | |
837 | static void mii_set_auto_on(struct velocity_info *vptr) | |
838 | { | |
3a7f8681 FR |
839 | if (MII_REG_BITS_IS_ON(BMCR_ANENABLE, MII_BMCR, vptr->mac_regs)) |
840 | MII_REG_BITS_ON(BMCR_ANRESTART, MII_BMCR, vptr->mac_regs); | |
2cf71d2e | 841 | else |
3a7f8681 | 842 | MII_REG_BITS_ON(BMCR_ANENABLE, MII_BMCR, vptr->mac_regs); |
2cf71d2e | 843 | } |
1da177e4 | 844 | |
2cf71d2e DJ |
845 | static u32 check_connection_type(struct mac_regs __iomem *regs) |
846 | { | |
847 | u32 status = 0; | |
848 | u8 PHYSR0; | |
849 | u16 ANAR; | |
850 | PHYSR0 = readb(®s->PHYSR0); | |
1da177e4 | 851 | |
2cf71d2e DJ |
852 | /* |
853 | if (!(PHYSR0 & PHYSR0_LINKGD)) | |
854 | status|=VELOCITY_LINK_FAIL; | |
855 | */ | |
1da177e4 | 856 | |
2cf71d2e DJ |
857 | if (PHYSR0 & PHYSR0_FDPX) |
858 | status |= VELOCITY_DUPLEX_FULL; | |
1da177e4 | 859 | |
2cf71d2e DJ |
860 | if (PHYSR0 & PHYSR0_SPDG) |
861 | status |= VELOCITY_SPEED_1000; | |
862 | else if (PHYSR0 & PHYSR0_SPD10) | |
863 | status |= VELOCITY_SPEED_10; | |
864 | else | |
865 | status |= VELOCITY_SPEED_100; | |
1da177e4 | 866 | |
3a7f8681 FR |
867 | if (MII_REG_BITS_IS_ON(BMCR_ANENABLE, MII_BMCR, regs)) { |
868 | velocity_mii_read(regs, MII_ADVERTISE, &ANAR); | |
869 | if ((ANAR & (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)) | |
870 | == (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)) { | |
871 | if (MII_REG_BITS_IS_ON(ADVERTISE_1000HALF | ADVERTISE_1000FULL, MII_CTRL1000, regs)) | |
2cf71d2e DJ |
872 | status |= VELOCITY_AUTONEG_ENABLE; |
873 | } | |
1da177e4 LT |
874 | } |
875 | ||
2cf71d2e DJ |
876 | return status; |
877 | } | |
1da177e4 | 878 | |
1da177e4 | 879 | |
1da177e4 | 880 | |
2cf71d2e DJ |
881 | /** |
882 | * velocity_set_media_mode - set media mode | |
883 | * @mii_status: old MII link state | |
884 | * | |
885 | * Check the media link state and configure the flow control | |
886 | * PHY and also velocity hardware setup accordingly. In particular | |
887 | * we need to set up CD polling and frame bursting. | |
888 | */ | |
889 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) | |
890 | { | |
891 | u32 curr_status; | |
892 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1da177e4 | 893 | |
2cf71d2e DJ |
894 | vptr->mii_status = mii_check_media_mode(vptr->mac_regs); |
895 | curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL); | |
07b5f6a6 | 896 | |
2cf71d2e DJ |
897 | /* Set mii link status */ |
898 | set_mii_flow_control(vptr); | |
1da177e4 | 899 | |
6aa20a22 | 900 | /* |
a34f0b31 | 901 | Check if new status is consistent with current status |
8e95a202 JP |
902 | if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) || |
903 | (mii_status==curr_status)) { | |
2cf71d2e DJ |
904 | vptr->mii_status=mii_check_media_mode(vptr->mac_regs); |
905 | vptr->mii_status=check_connection_type(vptr->mac_regs); | |
906 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); | |
907 | return 0; | |
908 | } | |
1da177e4 | 909 | */ |
6aa20a22 | 910 | |
2cf71d2e | 911 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) |
3a7f8681 | 912 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_NCONFIG, vptr->mac_regs); |
1da177e4 LT |
913 | |
914 | /* | |
2cf71d2e | 915 | * If connection type is AUTO |
1da177e4 | 916 | */ |
2cf71d2e DJ |
917 | if (mii_status & VELOCITY_AUTONEG_ENABLE) { |
918 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n"); | |
919 | /* clear force MAC mode bit */ | |
920 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
921 | /* set duplex mode of MAC according to duplex mode of MII */ | |
3a7f8681 FR |
922 | MII_REG_BITS_ON(ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF, MII_ADVERTISE, vptr->mac_regs); |
923 | MII_REG_BITS_ON(ADVERTISE_1000FULL | ADVERTISE_1000HALF, MII_CTRL1000, vptr->mac_regs); | |
924 | MII_REG_BITS_ON(BMCR_SPEED1000, MII_BMCR, vptr->mac_regs); | |
6aa20a22 | 925 | |
2cf71d2e DJ |
926 | /* enable AUTO-NEGO mode */ |
927 | mii_set_auto_on(vptr); | |
928 | } else { | |
15419227 | 929 | u16 CTRL1000; |
2cf71d2e DJ |
930 | u16 ANAR; |
931 | u8 CHIPGCR; | |
1da177e4 | 932 | |
2cf71d2e DJ |
933 | /* |
934 | * 1. if it's 3119, disable frame bursting in halfduplex mode | |
935 | * and enable it in fullduplex mode | |
936 | * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR | |
937 | * 3. only enable CD heart beat counter in 10HD mode | |
938 | */ | |
1da177e4 | 939 | |
2cf71d2e DJ |
940 | /* set force MAC mode bit */ |
941 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
1da177e4 | 942 | |
2cf71d2e | 943 | CHIPGCR = readb(®s->CHIPGCR); |
15419227 | 944 | |
945 | if (mii_status & VELOCITY_SPEED_1000) | |
946 | CHIPGCR |= CHIPGCR_FCGMII; | |
947 | else | |
948 | CHIPGCR &= ~CHIPGCR_FCGMII; | |
501e4d24 | 949 | |
2cf71d2e DJ |
950 | if (mii_status & VELOCITY_DUPLEX_FULL) { |
951 | CHIPGCR |= CHIPGCR_FCFDX; | |
952 | writeb(CHIPGCR, ®s->CHIPGCR); | |
953 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n"); | |
954 | if (vptr->rev_id < REV_ID_VT3216_A0) | |
955 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); | |
956 | } else { | |
957 | CHIPGCR &= ~CHIPGCR_FCFDX; | |
958 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n"); | |
959 | writeb(CHIPGCR, ®s->CHIPGCR); | |
960 | if (vptr->rev_id < REV_ID_VT3216_A0) | |
961 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); | |
962 | } | |
1da177e4 | 963 | |
15419227 | 964 | velocity_mii_read(vptr->mac_regs, MII_CTRL1000, &CTRL1000); |
965 | CTRL1000 &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); | |
966 | if ((mii_status & VELOCITY_SPEED_1000) && | |
967 | (mii_status & VELOCITY_DUPLEX_FULL)) { | |
968 | CTRL1000 |= ADVERTISE_1000FULL; | |
969 | } | |
970 | velocity_mii_write(vptr->mac_regs, MII_CTRL1000, CTRL1000); | |
1da177e4 | 971 | |
2cf71d2e DJ |
972 | if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) |
973 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); | |
974 | else | |
975 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); | |
1da177e4 | 976 | |
3a7f8681 FR |
977 | /* MII_REG_BITS_OFF(BMCR_SPEED1000, MII_BMCR, vptr->mac_regs); */ |
978 | velocity_mii_read(vptr->mac_regs, MII_ADVERTISE, &ANAR); | |
979 | ANAR &= (~(ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)); | |
2cf71d2e DJ |
980 | if (mii_status & VELOCITY_SPEED_100) { |
981 | if (mii_status & VELOCITY_DUPLEX_FULL) | |
3a7f8681 | 982 | ANAR |= ADVERTISE_100FULL; |
2cf71d2e | 983 | else |
3a7f8681 | 984 | ANAR |= ADVERTISE_100HALF; |
15419227 | 985 | } else if (mii_status & VELOCITY_SPEED_10) { |
2cf71d2e | 986 | if (mii_status & VELOCITY_DUPLEX_FULL) |
3a7f8681 | 987 | ANAR |= ADVERTISE_10FULL; |
2cf71d2e | 988 | else |
3a7f8681 | 989 | ANAR |= ADVERTISE_10HALF; |
2cf71d2e | 990 | } |
3a7f8681 | 991 | velocity_mii_write(vptr->mac_regs, MII_ADVERTISE, ANAR); |
2cf71d2e DJ |
992 | /* enable AUTO-NEGO mode */ |
993 | mii_set_auto_on(vptr); | |
3a7f8681 | 994 | /* MII_REG_BITS_ON(BMCR_ANENABLE, MII_BMCR, vptr->mac_regs); */ |
d3b238a0 | 995 | } |
2cf71d2e DJ |
996 | /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */ |
997 | /* vptr->mii_status=check_connection_type(vptr->mac_regs); */ | |
998 | return VELOCITY_LINK_CHANGE; | |
999 | } | |
8a22dddb | 1000 | |
2cf71d2e DJ |
1001 | /** |
1002 | * velocity_print_link_status - link status reporting | |
1003 | * @vptr: velocity to report on | |
1004 | * | |
1005 | * Turn the link status of the velocity card into a kernel log | |
1006 | * description of the new link state, detailing speed and duplex | |
1007 | * status | |
1008 | */ | |
1009 | static void velocity_print_link_status(struct velocity_info *vptr) | |
1010 | { | |
6aa20a22 | 1011 | |
2cf71d2e DJ |
1012 | if (vptr->mii_status & VELOCITY_LINK_FAIL) { |
1013 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name); | |
1014 | } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) { | |
1015 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name); | |
6aa20a22 | 1016 | |
2cf71d2e DJ |
1017 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
1018 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps"); | |
1019 | else if (vptr->mii_status & VELOCITY_SPEED_100) | |
1020 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps"); | |
1021 | else | |
1022 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps"); | |
1da177e4 | 1023 | |
2cf71d2e DJ |
1024 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
1025 | VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n"); | |
1026 | else | |
1027 | VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n"); | |
1028 | } else { | |
1029 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name); | |
1030 | switch (vptr->options.spd_dpx) { | |
15419227 | 1031 | case SPD_DPX_1000_FULL: |
1032 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps full duplex\n"); | |
1033 | break; | |
2cf71d2e DJ |
1034 | case SPD_DPX_100_HALF: |
1035 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n"); | |
1036 | break; | |
1037 | case SPD_DPX_100_FULL: | |
1038 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n"); | |
1039 | break; | |
1040 | case SPD_DPX_10_HALF: | |
1041 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n"); | |
1042 | break; | |
1043 | case SPD_DPX_10_FULL: | |
1044 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n"); | |
1045 | break; | |
1046 | default: | |
1047 | break; | |
1048 | } | |
1da177e4 | 1049 | } |
1da177e4 LT |
1050 | } |
1051 | ||
1052 | /** | |
2cf71d2e DJ |
1053 | * enable_flow_control_ability - flow control |
1054 | * @vptr: veloity to configure | |
1da177e4 | 1055 | * |
2cf71d2e DJ |
1056 | * Set up flow control according to the flow control options |
1057 | * determined by the eeprom/configuration. | |
1da177e4 | 1058 | */ |
2cf71d2e | 1059 | static void enable_flow_control_ability(struct velocity_info *vptr) |
1da177e4 | 1060 | { |
1da177e4 | 1061 | |
2cf71d2e | 1062 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 | 1063 | |
2cf71d2e | 1064 | switch (vptr->options.flow_cntl) { |
1da177e4 | 1065 | |
2cf71d2e DJ |
1066 | case FLOW_CNTL_DEFAULT: |
1067 | if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0)) | |
1068 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
1069 | else | |
1070 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
1071 | ||
1072 | if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0)) | |
1073 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
1074 | else | |
1075 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
1076 | break; | |
1077 | ||
1078 | case FLOW_CNTL_TX: | |
1079 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
1080 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
1081 | break; | |
1082 | ||
1083 | case FLOW_CNTL_RX: | |
1084 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
1085 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
1086 | break; | |
1087 | ||
1088 | case FLOW_CNTL_TX_RX: | |
1089 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
1090 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
1091 | break; | |
1092 | ||
1093 | case FLOW_CNTL_DISABLE: | |
1094 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
1095 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
1096 | break; | |
1097 | ||
1098 | default: | |
1099 | break; | |
1100 | } | |
1da177e4 | 1101 | |
1da177e4 LT |
1102 | } |
1103 | ||
1104 | /** | |
2cf71d2e DJ |
1105 | * velocity_soft_reset - soft reset |
1106 | * @vptr: velocity to reset | |
1da177e4 | 1107 | * |
2cf71d2e DJ |
1108 | * Kick off a soft reset of the velocity adapter and then poll |
1109 | * until the reset sequence has completed before returning. | |
1da177e4 | 1110 | */ |
2cf71d2e | 1111 | static int velocity_soft_reset(struct velocity_info *vptr) |
1da177e4 | 1112 | { |
2cf71d2e DJ |
1113 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1114 | int i = 0; | |
6aa20a22 | 1115 | |
2cf71d2e | 1116 | writel(CR0_SFRST, ®s->CR0Set); |
1da177e4 | 1117 | |
2cf71d2e DJ |
1118 | for (i = 0; i < W_MAX_TIMEOUT; i++) { |
1119 | udelay(5); | |
1120 | if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set)) | |
1121 | break; | |
1da177e4 LT |
1122 | } |
1123 | ||
2cf71d2e DJ |
1124 | if (i == W_MAX_TIMEOUT) { |
1125 | writel(CR0_FORSRST, ®s->CR0Set); | |
1126 | /* FIXME: PCI POSTING */ | |
1127 | /* delay 2ms */ | |
1128 | mdelay(2); | |
1da177e4 | 1129 | } |
1da177e4 LT |
1130 | return 0; |
1131 | } | |
1132 | ||
1133 | /** | |
2cf71d2e DJ |
1134 | * velocity_set_multi - filter list change callback |
1135 | * @dev: network device | |
1da177e4 | 1136 | * |
2cf71d2e DJ |
1137 | * Called by the network layer when the filter lists need to change |
1138 | * for a velocity adapter. Reload the CAMs with the new address | |
1139 | * filter ruleset. | |
1da177e4 | 1140 | */ |
2cf71d2e | 1141 | static void velocity_set_multi(struct net_device *dev) |
1da177e4 | 1142 | { |
2cf71d2e | 1143 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 1144 | struct mac_regs __iomem *regs = vptr->mac_regs; |
2cf71d2e DJ |
1145 | u8 rx_mode; |
1146 | int i; | |
22bedad3 | 1147 | struct netdev_hw_addr *ha; |
1da177e4 | 1148 | |
2cf71d2e DJ |
1149 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ |
1150 | writel(0xffffffff, ®s->MARCAM[0]); | |
1151 | writel(0xffffffff, ®s->MARCAM[4]); | |
1152 | rx_mode = (RCR_AM | RCR_AB | RCR_PROM); | |
4cd24eaf | 1153 | } else if ((netdev_mc_count(dev) > vptr->multicast_limit) || |
8e95a202 | 1154 | (dev->flags & IFF_ALLMULTI)) { |
2cf71d2e DJ |
1155 | writel(0xffffffff, ®s->MARCAM[0]); |
1156 | writel(0xffffffff, ®s->MARCAM[4]); | |
1157 | rx_mode = (RCR_AM | RCR_AB); | |
1158 | } else { | |
1159 | int offset = MCAM_SIZE - vptr->multicast_limit; | |
1160 | mac_get_cam_mask(regs, vptr->mCAMmask); | |
1da177e4 | 1161 | |
567ec874 | 1162 | i = 0; |
22bedad3 JP |
1163 | netdev_for_each_mc_addr(ha, dev) { |
1164 | mac_set_cam(regs, i + offset, ha->addr); | |
2cf71d2e | 1165 | vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7); |
567ec874 | 1166 | i++; |
1da177e4 | 1167 | } |
1da177e4 | 1168 | |
2cf71d2e DJ |
1169 | mac_set_cam_mask(regs, vptr->mCAMmask); |
1170 | rx_mode = RCR_AM | RCR_AB | RCR_AP; | |
1da177e4 | 1171 | } |
2cf71d2e DJ |
1172 | if (dev->mtu > 1500) |
1173 | rx_mode |= RCR_AL; | |
1da177e4 | 1174 | |
2cf71d2e | 1175 | BYTE_REG_BITS_ON(rx_mode, ®s->RCR); |
1da177e4 | 1176 | |
9088d9a4 FR |
1177 | } |
1178 | ||
2cf71d2e DJ |
1179 | /* |
1180 | * MII access , media link mode setting functions | |
1da177e4 LT |
1181 | */ |
1182 | ||
1da177e4 | 1183 | /** |
2cf71d2e DJ |
1184 | * mii_init - set up MII |
1185 | * @vptr: velocity adapter | |
1186 | * @mii_status: links tatus | |
1da177e4 | 1187 | * |
2cf71d2e | 1188 | * Set up the PHY for the current link state. |
1da177e4 | 1189 | */ |
2cf71d2e | 1190 | static void mii_init(struct velocity_info *vptr, u32 mii_status) |
1da177e4 | 1191 | { |
2cf71d2e | 1192 | u16 BMCR; |
1da177e4 | 1193 | |
2cf71d2e DJ |
1194 | switch (PHYID_GET_PHY_ID(vptr->phy_id)) { |
1195 | case PHYID_CICADA_CS8201: | |
1196 | /* | |
1197 | * Reset to hardware default | |
1198 | */ | |
3a7f8681 | 1199 | MII_REG_BITS_OFF((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP), MII_ADVERTISE, vptr->mac_regs); |
2cf71d2e DJ |
1200 | /* |
1201 | * Turn on ECHODIS bit in NWay-forced full mode and turn it | |
1202 | * off it in NWay-forced half mode for NWay-forced v.s. | |
1203 | * legacy-forced issue. | |
1204 | */ | |
1205 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
3a7f8681 | 1206 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs); |
2cf71d2e | 1207 | else |
3a7f8681 | 1208 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs); |
2cf71d2e DJ |
1209 | /* |
1210 | * Turn on Link/Activity LED enable bit for CIS8201 | |
1211 | */ | |
3a7f8681 | 1212 | MII_REG_BITS_ON(PLED_LALBE, MII_TPISTATUS, vptr->mac_regs); |
2cf71d2e DJ |
1213 | break; |
1214 | case PHYID_VT3216_32BIT: | |
1215 | case PHYID_VT3216_64BIT: | |
1216 | /* | |
1217 | * Reset to hardware default | |
1218 | */ | |
3a7f8681 | 1219 | MII_REG_BITS_ON((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP), MII_ADVERTISE, vptr->mac_regs); |
2cf71d2e DJ |
1220 | /* |
1221 | * Turn on ECHODIS bit in NWay-forced full mode and turn it | |
1222 | * off it in NWay-forced half mode for NWay-forced v.s. | |
1223 | * legacy-forced issue | |
1224 | */ | |
1225 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
3a7f8681 | 1226 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs); |
2cf71d2e | 1227 | else |
3a7f8681 | 1228 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs); |
2cf71d2e | 1229 | break; |
1da177e4 | 1230 | |
2cf71d2e DJ |
1231 | case PHYID_MARVELL_1000: |
1232 | case PHYID_MARVELL_1000S: | |
1233 | /* | |
1234 | * Assert CRS on Transmit | |
1235 | */ | |
1236 | MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs); | |
1237 | /* | |
1238 | * Reset to hardware default | |
1239 | */ | |
3a7f8681 | 1240 | MII_REG_BITS_ON((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP), MII_ADVERTISE, vptr->mac_regs); |
2cf71d2e DJ |
1241 | break; |
1242 | default: | |
1243 | ; | |
1244 | } | |
3a7f8681 FR |
1245 | velocity_mii_read(vptr->mac_regs, MII_BMCR, &BMCR); |
1246 | if (BMCR & BMCR_ISOLATE) { | |
1247 | BMCR &= ~BMCR_ISOLATE; | |
1248 | velocity_mii_write(vptr->mac_regs, MII_BMCR, BMCR); | |
1da177e4 | 1249 | } |
1da177e4 LT |
1250 | } |
1251 | ||
6dfc4b95 SK |
1252 | /** |
1253 | * setup_queue_timers - Setup interrupt timers | |
1254 | * | |
1255 | * Setup interrupt frequency during suppression (timeout if the frame | |
1256 | * count isn't filled). | |
1257 | */ | |
1258 | static void setup_queue_timers(struct velocity_info *vptr) | |
1259 | { | |
1260 | /* Only for newer revisions */ | |
1261 | if (vptr->rev_id >= REV_ID_VT3216_A0) { | |
1262 | u8 txqueue_timer = 0; | |
1263 | u8 rxqueue_timer = 0; | |
1264 | ||
1265 | if (vptr->mii_status & (VELOCITY_SPEED_1000 | | |
1266 | VELOCITY_SPEED_100)) { | |
1267 | txqueue_timer = vptr->options.txqueue_timer; | |
1268 | rxqueue_timer = vptr->options.rxqueue_timer; | |
1269 | } | |
1270 | ||
1271 | writeb(txqueue_timer, &vptr->mac_regs->TQETMR); | |
1272 | writeb(rxqueue_timer, &vptr->mac_regs->RQETMR); | |
1273 | } | |
1274 | } | |
1275 | /** | |
1276 | * setup_adaptive_interrupts - Setup interrupt suppression | |
1277 | * | |
1278 | * @vptr velocity adapter | |
1279 | * | |
1280 | * The velocity is able to suppress interrupt during high interrupt load. | |
1281 | * This function turns on that feature. | |
1282 | */ | |
1283 | static void setup_adaptive_interrupts(struct velocity_info *vptr) | |
1284 | { | |
1285 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1286 | u16 tx_intsup = vptr->options.tx_intsup; | |
1287 | u16 rx_intsup = vptr->options.rx_intsup; | |
1288 | ||
1289 | /* Setup default interrupt mask (will be changed below) */ | |
1290 | vptr->int_mask = INT_MASK_DEF; | |
1291 | ||
1292 | /* Set Tx Interrupt Suppression Threshold */ | |
1293 | writeb(CAMCR_PS0, ®s->CAMCR); | |
1294 | if (tx_intsup != 0) { | |
1295 | vptr->int_mask &= ~(ISR_PTXI | ISR_PTX0I | ISR_PTX1I | | |
1296 | ISR_PTX2I | ISR_PTX3I); | |
1297 | writew(tx_intsup, ®s->ISRCTL); | |
1298 | } else | |
1299 | writew(ISRCTL_TSUPDIS, ®s->ISRCTL); | |
1300 | ||
1301 | /* Set Rx Interrupt Suppression Threshold */ | |
1302 | writeb(CAMCR_PS1, ®s->CAMCR); | |
1303 | if (rx_intsup != 0) { | |
1304 | vptr->int_mask &= ~ISR_PRXI; | |
1305 | writew(rx_intsup, ®s->ISRCTL); | |
1306 | } else | |
1307 | writew(ISRCTL_RSUPDIS, ®s->ISRCTL); | |
1308 | ||
1309 | /* Select page to interrupt hold timer */ | |
1310 | writeb(0, ®s->CAMCR); | |
1311 | } | |
2cf71d2e | 1312 | |
1da177e4 | 1313 | /** |
2cf71d2e DJ |
1314 | * velocity_init_registers - initialise MAC registers |
1315 | * @vptr: velocity to init | |
1316 | * @type: type of initialisation (hot or cold) | |
1da177e4 | 1317 | * |
2cf71d2e DJ |
1318 | * Initialise the MAC on a reset or on first set up on the |
1319 | * hardware. | |
1da177e4 | 1320 | */ |
2cf71d2e DJ |
1321 | static void velocity_init_registers(struct velocity_info *vptr, |
1322 | enum velocity_init_type type) | |
1da177e4 | 1323 | { |
2cf71d2e DJ |
1324 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1325 | int i, mii_status; | |
1da177e4 | 1326 | |
2cf71d2e | 1327 | mac_wol_reset(regs); |
1da177e4 | 1328 | |
2cf71d2e DJ |
1329 | switch (type) { |
1330 | case VELOCITY_INIT_RESET: | |
1331 | case VELOCITY_INIT_WOL: | |
1da177e4 | 1332 | |
2cf71d2e | 1333 | netif_stop_queue(vptr->dev); |
6aa20a22 | 1334 | |
2cf71d2e DJ |
1335 | /* |
1336 | * Reset RX to prevent RX pointer not on the 4X location | |
1337 | */ | |
1338 | velocity_rx_reset(vptr); | |
1339 | mac_rx_queue_run(regs); | |
1340 | mac_rx_queue_wake(regs); | |
6aa20a22 | 1341 | |
2cf71d2e DJ |
1342 | mii_status = velocity_get_opt_media_mode(vptr); |
1343 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { | |
1344 | velocity_print_link_status(vptr); | |
1345 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) | |
1346 | netif_wake_queue(vptr->dev); | |
1da177e4 | 1347 | } |
1da177e4 | 1348 | |
2cf71d2e | 1349 | enable_flow_control_ability(vptr); |
1da177e4 | 1350 | |
2cf71d2e DJ |
1351 | mac_clear_isr(regs); |
1352 | writel(CR0_STOP, ®s->CR0Clr); | |
1353 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), | |
1354 | ®s->CR0Set); | |
6aa20a22 | 1355 | |
2cf71d2e | 1356 | break; |
1da177e4 | 1357 | |
2cf71d2e DJ |
1358 | case VELOCITY_INIT_COLD: |
1359 | default: | |
1360 | /* | |
1361 | * Do reset | |
1362 | */ | |
1363 | velocity_soft_reset(vptr); | |
1364 | mdelay(5); | |
1da177e4 | 1365 | |
2cf71d2e DJ |
1366 | mac_eeprom_reload(regs); |
1367 | for (i = 0; i < 6; i++) | |
1368 | writeb(vptr->dev->dev_addr[i], &(regs->PAR[i])); | |
1da177e4 | 1369 | |
2cf71d2e DJ |
1370 | /* |
1371 | * clear Pre_ACPI bit. | |
1372 | */ | |
1373 | BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA)); | |
1374 | mac_set_rx_thresh(regs, vptr->options.rx_thresh); | |
1375 | mac_set_dma_length(regs, vptr->options.DMA_length); | |
1da177e4 | 1376 | |
2cf71d2e DJ |
1377 | writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet); |
1378 | /* | |
1379 | * Back off algorithm use original IEEE standard | |
1380 | */ | |
1381 | BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB); | |
1da177e4 LT |
1382 | |
1383 | /* | |
2cf71d2e | 1384 | * Init CAM filter |
1da177e4 | 1385 | */ |
2cf71d2e | 1386 | velocity_init_cam_filter(vptr); |
1da177e4 | 1387 | |
2cf71d2e DJ |
1388 | /* |
1389 | * Set packet filter: Receive directed and broadcast address | |
1390 | */ | |
1391 | velocity_set_multi(vptr->dev); | |
1da177e4 | 1392 | |
2cf71d2e DJ |
1393 | /* |
1394 | * Enable MII auto-polling | |
1395 | */ | |
1396 | enable_mii_autopoll(regs); | |
1da177e4 | 1397 | |
6dfc4b95 | 1398 | setup_adaptive_interrupts(vptr); |
1da177e4 | 1399 | |
2cf71d2e DJ |
1400 | writel(vptr->rx.pool_dma, ®s->RDBaseLo); |
1401 | writew(vptr->options.numrx - 1, ®s->RDCSize); | |
1402 | mac_rx_queue_run(regs); | |
1403 | mac_rx_queue_wake(regs); | |
1da177e4 | 1404 | |
2cf71d2e | 1405 | writew(vptr->options.numtx - 1, ®s->TDCSize); |
1da177e4 | 1406 | |
2cf71d2e DJ |
1407 | for (i = 0; i < vptr->tx.numq; i++) { |
1408 | writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]); | |
1409 | mac_tx_queue_run(regs, i); | |
1410 | } | |
1da177e4 | 1411 | |
2cf71d2e | 1412 | init_flow_control_register(vptr); |
6aa20a22 | 1413 | |
2cf71d2e DJ |
1414 | writel(CR0_STOP, ®s->CR0Clr); |
1415 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set); | |
1da177e4 | 1416 | |
2cf71d2e DJ |
1417 | mii_status = velocity_get_opt_media_mode(vptr); |
1418 | netif_stop_queue(vptr->dev); | |
1da177e4 | 1419 | |
2cf71d2e | 1420 | mii_init(vptr, mii_status); |
1da177e4 | 1421 | |
2cf71d2e DJ |
1422 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { |
1423 | velocity_print_link_status(vptr); | |
1424 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) | |
1425 | netif_wake_queue(vptr->dev); | |
1da177e4 | 1426 | } |
6aa20a22 | 1427 | |
2cf71d2e DJ |
1428 | enable_flow_control_ability(vptr); |
1429 | mac_hw_mibs_init(regs); | |
1430 | mac_write_int_mask(vptr->int_mask, regs); | |
1431 | mac_clear_isr(regs); | |
1432 | ||
1da177e4 | 1433 | } |
1da177e4 LT |
1434 | } |
1435 | ||
2cf71d2e | 1436 | static void velocity_give_many_rx_descs(struct velocity_info *vptr) |
1da177e4 | 1437 | { |
2cf71d2e DJ |
1438 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1439 | int avail, dirty, unusable; | |
1440 | ||
1441 | /* | |
1442 | * RD number must be equal to 4X per hardware spec | |
1443 | * (programming guide rev 1.20, p.13) | |
1444 | */ | |
1445 | if (vptr->rx.filled < 4) | |
1446 | return; | |
1447 | ||
1448 | wmb(); | |
1449 | ||
1450 | unusable = vptr->rx.filled & 0x0003; | |
1451 | dirty = vptr->rx.dirty - unusable; | |
1452 | for (avail = vptr->rx.filled & 0xfffc; avail; avail--) { | |
1453 | dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1; | |
1454 | vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC; | |
1da177e4 | 1455 | } |
2cf71d2e DJ |
1456 | |
1457 | writew(vptr->rx.filled & 0xfffc, ®s->RBRDU); | |
1458 | vptr->rx.filled = unusable; | |
1da177e4 LT |
1459 | } |
1460 | ||
1461 | /** | |
2cf71d2e DJ |
1462 | * velocity_init_dma_rings - set up DMA rings |
1463 | * @vptr: Velocity to set up | |
6aa20a22 | 1464 | * |
2cf71d2e DJ |
1465 | * Allocate PCI mapped DMA rings for the receive and transmit layer |
1466 | * to use. | |
1da177e4 | 1467 | */ |
2cf71d2e | 1468 | static int velocity_init_dma_rings(struct velocity_info *vptr) |
1da177e4 | 1469 | { |
2cf71d2e DJ |
1470 | struct velocity_opt *opt = &vptr->options; |
1471 | const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc); | |
1472 | const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc); | |
1473 | struct pci_dev *pdev = vptr->pdev; | |
1474 | dma_addr_t pool_dma; | |
1475 | void *pool; | |
1476 | unsigned int i; | |
1da177e4 LT |
1477 | |
1478 | /* | |
2cf71d2e DJ |
1479 | * Allocate all RD/TD rings a single pool. |
1480 | * | |
1481 | * pci_alloc_consistent() fulfills the requirement for 64 bytes | |
1482 | * alignment | |
1da177e4 | 1483 | */ |
2cf71d2e DJ |
1484 | pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq + |
1485 | rx_ring_size, &pool_dma); | |
1486 | if (!pool) { | |
1487 | dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n", | |
1488 | vptr->dev->name); | |
1489 | return -ENOMEM; | |
1da177e4 LT |
1490 | } |
1491 | ||
2cf71d2e DJ |
1492 | vptr->rx.ring = pool; |
1493 | vptr->rx.pool_dma = pool_dma; | |
1da177e4 | 1494 | |
2cf71d2e DJ |
1495 | pool += rx_ring_size; |
1496 | pool_dma += rx_ring_size; | |
d4f73c8e | 1497 | |
2cf71d2e DJ |
1498 | for (i = 0; i < vptr->tx.numq; i++) { |
1499 | vptr->tx.rings[i] = pool; | |
1500 | vptr->tx.pool_dma[i] = pool_dma; | |
1501 | pool += tx_ring_size; | |
1502 | pool_dma += tx_ring_size; | |
1503 | } | |
1da177e4 LT |
1504 | |
1505 | return 0; | |
1506 | } | |
1507 | ||
2cf71d2e DJ |
1508 | static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu) |
1509 | { | |
1510 | vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32; | |
1511 | } | |
1512 | ||
1da177e4 LT |
1513 | /** |
1514 | * velocity_alloc_rx_buf - allocate aligned receive buffer | |
1515 | * @vptr: velocity | |
1516 | * @idx: ring index | |
1517 | * | |
1518 | * Allocate a new full sized buffer for the reception of a frame and | |
1519 | * map it into PCI space for the hardware to use. The hardware | |
1520 | * requires *64* byte alignment of the buffer which makes life | |
1521 | * less fun than would be ideal. | |
1522 | */ | |
1da177e4 LT |
1523 | static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) |
1524 | { | |
0fe9f15e FR |
1525 | struct rx_desc *rd = &(vptr->rx.ring[idx]); |
1526 | struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); | |
1da177e4 | 1527 | |
0fe9f15e | 1528 | rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64); |
1da177e4 LT |
1529 | if (rd_info->skb == NULL) |
1530 | return -ENOMEM; | |
1531 | ||
1532 | /* | |
1533 | * Do the gymnastics to get the buffer head for data at | |
1534 | * 64byte alignment. | |
1535 | */ | |
da95b2d4 SK |
1536 | skb_reserve(rd_info->skb, |
1537 | 64 - ((unsigned long) rd_info->skb->data & 63)); | |
0fe9f15e FR |
1538 | rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, |
1539 | vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); | |
6aa20a22 | 1540 | |
1da177e4 LT |
1541 | /* |
1542 | * Fill in the descriptor to match | |
0fe9f15e | 1543 | */ |
6aa20a22 | 1544 | |
1da177e4 | 1545 | *((u32 *) & (rd->rdesc0)) = 0; |
0fe9f15e | 1546 | rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN; |
1da177e4 LT |
1547 | rd->pa_low = cpu_to_le32(rd_info->skb_dma); |
1548 | rd->pa_high = 0; | |
1549 | return 0; | |
1550 | } | |
1551 | ||
6aa20a22 | 1552 | |
2cf71d2e | 1553 | static int velocity_rx_refill(struct velocity_info *vptr) |
1da177e4 | 1554 | { |
2cf71d2e | 1555 | int dirty = vptr->rx.dirty, done = 0; |
1da177e4 | 1556 | |
2cf71d2e DJ |
1557 | do { |
1558 | struct rx_desc *rd = vptr->rx.ring + dirty; | |
1da177e4 | 1559 | |
2cf71d2e DJ |
1560 | /* Fine for an all zero Rx desc at init time as well */ |
1561 | if (rd->rdesc0.len & OWNED_BY_NIC) | |
1562 | break; | |
1da177e4 | 1563 | |
2cf71d2e DJ |
1564 | if (!vptr->rx.info[dirty].skb) { |
1565 | if (velocity_alloc_rx_buf(vptr, dirty) < 0) | |
1da177e4 | 1566 | break; |
1da177e4 | 1567 | } |
2cf71d2e DJ |
1568 | done++; |
1569 | dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0; | |
1570 | } while (dirty != vptr->rx.curr); | |
1da177e4 | 1571 | |
2cf71d2e DJ |
1572 | if (done) { |
1573 | vptr->rx.dirty = dirty; | |
1574 | vptr->rx.filled += done; | |
1da177e4 | 1575 | } |
2cf71d2e DJ |
1576 | |
1577 | return done; | |
1da177e4 LT |
1578 | } |
1579 | ||
1580 | /** | |
2cf71d2e DJ |
1581 | * velocity_free_rd_ring - free receive ring |
1582 | * @vptr: velocity to clean up | |
1da177e4 | 1583 | * |
2cf71d2e DJ |
1584 | * Free the receive buffers for each ring slot and any |
1585 | * attached socket buffers that need to go away. | |
1da177e4 | 1586 | */ |
2cf71d2e | 1587 | static void velocity_free_rd_ring(struct velocity_info *vptr) |
1da177e4 | 1588 | { |
2cf71d2e | 1589 | int i; |
1da177e4 | 1590 | |
2cf71d2e DJ |
1591 | if (vptr->rx.info == NULL) |
1592 | return; | |
6aa20a22 | 1593 | |
2cf71d2e DJ |
1594 | for (i = 0; i < vptr->options.numrx; i++) { |
1595 | struct velocity_rd_info *rd_info = &(vptr->rx.info[i]); | |
1596 | struct rx_desc *rd = vptr->rx.ring + i; | |
1da177e4 | 1597 | |
2cf71d2e | 1598 | memset(rd, 0, sizeof(*rd)); |
1da177e4 | 1599 | |
2cf71d2e DJ |
1600 | if (!rd_info->skb) |
1601 | continue; | |
1602 | pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, | |
1603 | PCI_DMA_FROMDEVICE); | |
1604 | rd_info->skb_dma = 0; | |
6aa20a22 | 1605 | |
2cf71d2e DJ |
1606 | dev_kfree_skb(rd_info->skb); |
1607 | rd_info->skb = NULL; | |
1da177e4 LT |
1608 | } |
1609 | ||
2cf71d2e DJ |
1610 | kfree(vptr->rx.info); |
1611 | vptr->rx.info = NULL; | |
1612 | } | |
1da177e4 | 1613 | |
1da177e4 | 1614 | |
1da177e4 | 1615 | |
2cf71d2e DJ |
1616 | /** |
1617 | * velocity_init_rd_ring - set up receive ring | |
1618 | * @vptr: velocity to configure | |
1619 | * | |
1620 | * Allocate and set up the receive buffers for each ring slot and | |
1621 | * assign them to the network adapter. | |
1622 | */ | |
1623 | static int velocity_init_rd_ring(struct velocity_info *vptr) | |
1624 | { | |
1625 | int ret = -ENOMEM; | |
1da177e4 | 1626 | |
2cf71d2e DJ |
1627 | vptr->rx.info = kcalloc(vptr->options.numrx, |
1628 | sizeof(struct velocity_rd_info), GFP_KERNEL); | |
1629 | if (!vptr->rx.info) | |
1630 | goto out; | |
6aa20a22 | 1631 | |
2cf71d2e | 1632 | velocity_init_rx_ring_indexes(vptr); |
1da177e4 | 1633 | |
2cf71d2e DJ |
1634 | if (velocity_rx_refill(vptr) != vptr->options.numrx) { |
1635 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR | |
1636 | "%s: failed to allocate RX buffer.\n", vptr->dev->name); | |
1637 | velocity_free_rd_ring(vptr); | |
1638 | goto out; | |
1639 | } | |
1da177e4 | 1640 | |
2cf71d2e DJ |
1641 | ret = 0; |
1642 | out: | |
1643 | return ret; | |
1da177e4 LT |
1644 | } |
1645 | ||
1646 | /** | |
2cf71d2e DJ |
1647 | * velocity_init_td_ring - set up transmit ring |
1648 | * @vptr: velocity | |
1da177e4 | 1649 | * |
2cf71d2e DJ |
1650 | * Set up the transmit ring and chain the ring pointers together. |
1651 | * Returns zero on success or a negative posix errno code for | |
1652 | * failure. | |
1da177e4 | 1653 | */ |
2cf71d2e | 1654 | static int velocity_init_td_ring(struct velocity_info *vptr) |
1da177e4 | 1655 | { |
2cf71d2e | 1656 | int j; |
1da177e4 | 1657 | |
2cf71d2e DJ |
1658 | /* Init the TD ring entries */ |
1659 | for (j = 0; j < vptr->tx.numq; j++) { | |
1da177e4 | 1660 | |
2cf71d2e DJ |
1661 | vptr->tx.infos[j] = kcalloc(vptr->options.numtx, |
1662 | sizeof(struct velocity_td_info), | |
1663 | GFP_KERNEL); | |
1664 | if (!vptr->tx.infos[j]) { | |
1665 | while (--j >= 0) | |
1666 | kfree(vptr->tx.infos[j]); | |
1667 | return -ENOMEM; | |
1da177e4 | 1668 | } |
2cf71d2e DJ |
1669 | |
1670 | vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0; | |
1da177e4 | 1671 | } |
2cf71d2e DJ |
1672 | return 0; |
1673 | } | |
1674 | ||
1675 | /** | |
1676 | * velocity_free_dma_rings - free PCI ring pointers | |
1677 | * @vptr: Velocity to free from | |
1678 | * | |
1679 | * Clean up the PCI ring buffers allocated to this velocity. | |
1680 | */ | |
1681 | static void velocity_free_dma_rings(struct velocity_info *vptr) | |
1682 | { | |
1683 | const int size = vptr->options.numrx * sizeof(struct rx_desc) + | |
1684 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq; | |
1685 | ||
1686 | pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma); | |
1da177e4 LT |
1687 | } |
1688 | ||
2cf71d2e | 1689 | |
3c4dc711 FR |
1690 | static int velocity_init_rings(struct velocity_info *vptr, int mtu) |
1691 | { | |
1692 | int ret; | |
1693 | ||
1694 | velocity_set_rxbufsize(vptr, mtu); | |
1695 | ||
1696 | ret = velocity_init_dma_rings(vptr); | |
1697 | if (ret < 0) | |
1698 | goto out; | |
1699 | ||
1700 | ret = velocity_init_rd_ring(vptr); | |
1701 | if (ret < 0) | |
1702 | goto err_free_dma_rings_0; | |
1703 | ||
1704 | ret = velocity_init_td_ring(vptr); | |
1705 | if (ret < 0) | |
1706 | goto err_free_rd_ring_1; | |
1707 | out: | |
1708 | return ret; | |
1709 | ||
1710 | err_free_rd_ring_1: | |
1711 | velocity_free_rd_ring(vptr); | |
1712 | err_free_dma_rings_0: | |
1713 | velocity_free_dma_rings(vptr); | |
1714 | goto out; | |
1715 | } | |
1716 | ||
1da177e4 | 1717 | /** |
2cf71d2e DJ |
1718 | * velocity_free_tx_buf - free transmit buffer |
1719 | * @vptr: velocity | |
1720 | * @tdinfo: buffer | |
1da177e4 | 1721 | * |
2cf71d2e DJ |
1722 | * Release an transmit buffer. If the buffer was preallocated then |
1723 | * recycle it, if not then unmap the buffer. | |
1da177e4 | 1724 | */ |
c79992fd SK |
1725 | static void velocity_free_tx_buf(struct velocity_info *vptr, |
1726 | struct velocity_td_info *tdinfo, struct tx_desc *td) | |
1da177e4 | 1727 | { |
2cf71d2e | 1728 | struct sk_buff *skb = tdinfo->skb; |
28133176 | 1729 | |
2cf71d2e DJ |
1730 | /* |
1731 | * Don't unmap the pre-allocated tx_bufs | |
1732 | */ | |
1733 | if (tdinfo->skb_dma) { | |
c79992fd | 1734 | int i; |
1da177e4 | 1735 | |
2cf71d2e | 1736 | for (i = 0; i < tdinfo->nskb_dma; i++) { |
c79992fd SK |
1737 | size_t pktlen = max_t(size_t, skb->len, ETH_ZLEN); |
1738 | ||
1739 | /* For scatter-gather */ | |
1740 | if (skb_shinfo(skb)->nr_frags > 0) | |
1741 | pktlen = max_t(size_t, pktlen, | |
1742 | td->td_buf[i].size & ~TD_QUEUE); | |
1743 | ||
1744 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], | |
1745 | le16_to_cpu(pktlen), PCI_DMA_TODEVICE); | |
2cf71d2e | 1746 | } |
1da177e4 | 1747 | } |
2cf71d2e DJ |
1748 | dev_kfree_skb_irq(skb); |
1749 | tdinfo->skb = NULL; | |
1da177e4 LT |
1750 | } |
1751 | ||
6aa20a22 | 1752 | |
2cf71d2e DJ |
1753 | /* |
1754 | * FIXME: could we merge this with velocity_free_tx_buf ? | |
1755 | */ | |
1756 | static void velocity_free_td_ring_entry(struct velocity_info *vptr, | |
1757 | int q, int n) | |
1da177e4 | 1758 | { |
2cf71d2e DJ |
1759 | struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]); |
1760 | int i; | |
bd7b3f34 | 1761 | |
2cf71d2e DJ |
1762 | if (td_info == NULL) |
1763 | return; | |
3c4dc711 | 1764 | |
2cf71d2e DJ |
1765 | if (td_info->skb) { |
1766 | for (i = 0; i < td_info->nskb_dma; i++) { | |
1767 | if (td_info->skb_dma[i]) { | |
1768 | pci_unmap_single(vptr->pdev, td_info->skb_dma[i], | |
1769 | td_info->skb->len, PCI_DMA_TODEVICE); | |
1770 | td_info->skb_dma[i] = 0; | |
1771 | } | |
3c4dc711 | 1772 | } |
2cf71d2e DJ |
1773 | dev_kfree_skb(td_info->skb); |
1774 | td_info->skb = NULL; | |
3c4dc711 | 1775 | } |
1da177e4 LT |
1776 | } |
1777 | ||
1778 | /** | |
2cf71d2e DJ |
1779 | * velocity_free_td_ring - free td ring |
1780 | * @vptr: velocity | |
1da177e4 | 1781 | * |
2cf71d2e DJ |
1782 | * Free up the transmit ring for this particular velocity adapter. |
1783 | * We free the ring contents but not the ring itself. | |
1784 | */ | |
1785 | static void velocity_free_td_ring(struct velocity_info *vptr) | |
1786 | { | |
1787 | int i, j; | |
1da177e4 | 1788 | |
2cf71d2e DJ |
1789 | for (j = 0; j < vptr->tx.numq; j++) { |
1790 | if (vptr->tx.infos[j] == NULL) | |
1791 | continue; | |
1792 | for (i = 0; i < vptr->options.numtx; i++) | |
1793 | velocity_free_td_ring_entry(vptr, j, i); | |
6aa20a22 | 1794 | |
2cf71d2e DJ |
1795 | kfree(vptr->tx.infos[j]); |
1796 | vptr->tx.infos[j] = NULL; | |
1797 | } | |
1798 | } | |
6aa20a22 | 1799 | |
1da177e4 | 1800 | |
2cf71d2e DJ |
1801 | static void velocity_free_rings(struct velocity_info *vptr) |
1802 | { | |
1803 | velocity_free_td_ring(vptr); | |
1804 | velocity_free_rd_ring(vptr); | |
1805 | velocity_free_dma_rings(vptr); | |
1da177e4 LT |
1806 | } |
1807 | ||
1808 | /** | |
2cf71d2e DJ |
1809 | * velocity_error - handle error from controller |
1810 | * @vptr: velocity | |
1811 | * @status: card status | |
1812 | * | |
1813 | * Process an error report from the hardware and attempt to recover | |
1814 | * the card itself. At the moment we cannot recover from some | |
1815 | * theoretically impossible errors but this could be fixed using | |
1816 | * the pci_device_failed logic to bounce the hardware | |
1da177e4 | 1817 | * |
1da177e4 | 1818 | */ |
2cf71d2e | 1819 | static void velocity_error(struct velocity_info *vptr, int status) |
1da177e4 | 1820 | { |
580a6902 | 1821 | |
2cf71d2e DJ |
1822 | if (status & ISR_TXSTLI) { |
1823 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1da177e4 | 1824 | |
2cf71d2e DJ |
1825 | printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0])); |
1826 | BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR); | |
1827 | writew(TRDCSR_RUN, ®s->TDCSRClr); | |
1828 | netif_stop_queue(vptr->dev); | |
1da177e4 | 1829 | |
2cf71d2e DJ |
1830 | /* FIXME: port over the pci_device_failed code and use it |
1831 | here */ | |
1832 | } | |
1da177e4 | 1833 | |
2cf71d2e DJ |
1834 | if (status & ISR_SRCI) { |
1835 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1836 | int linked; | |
1da177e4 | 1837 | |
2cf71d2e DJ |
1838 | if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
1839 | vptr->mii_status = check_connection_type(regs); | |
1da177e4 | 1840 | |
2cf71d2e DJ |
1841 | /* |
1842 | * If it is a 3119, disable frame bursting in | |
1843 | * halfduplex mode and enable it in fullduplex | |
1844 | * mode | |
1845 | */ | |
1846 | if (vptr->rev_id < REV_ID_VT3216_A0) { | |
0527a1a8 | 1847 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
2cf71d2e DJ |
1848 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
1849 | else | |
1850 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); | |
1851 | } | |
1852 | /* | |
1853 | * Only enable CD heart beat counter in 10HD mode | |
1854 | */ | |
1855 | if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) | |
1856 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); | |
1857 | else | |
1858 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); | |
6dfc4b95 SK |
1859 | |
1860 | setup_queue_timers(vptr); | |
2cf71d2e DJ |
1861 | } |
1862 | /* | |
1863 | * Get link status from PHYSR0 | |
1864 | */ | |
1865 | linked = readb(®s->PHYSR0) & PHYSR0_LINKGD; | |
1da177e4 | 1866 | |
2cf71d2e DJ |
1867 | if (linked) { |
1868 | vptr->mii_status &= ~VELOCITY_LINK_FAIL; | |
1869 | netif_carrier_on(vptr->dev); | |
1870 | } else { | |
1871 | vptr->mii_status |= VELOCITY_LINK_FAIL; | |
1872 | netif_carrier_off(vptr->dev); | |
1873 | } | |
1da177e4 | 1874 | |
2cf71d2e DJ |
1875 | velocity_print_link_status(vptr); |
1876 | enable_flow_control_ability(vptr); | |
1da177e4 | 1877 | |
2cf71d2e DJ |
1878 | /* |
1879 | * Re-enable auto-polling because SRCI will disable | |
1880 | * auto-polling | |
1881 | */ | |
1da177e4 | 1882 | |
2cf71d2e | 1883 | enable_mii_autopoll(regs); |
1da177e4 | 1884 | |
2cf71d2e DJ |
1885 | if (vptr->mii_status & VELOCITY_LINK_FAIL) |
1886 | netif_stop_queue(vptr->dev); | |
1887 | else | |
1888 | netif_wake_queue(vptr->dev); | |
1da177e4 | 1889 | |
2cf71d2e DJ |
1890 | }; |
1891 | if (status & ISR_MIBFI) | |
1892 | velocity_update_hw_mibs(vptr); | |
1893 | if (status & ISR_LSTEI) | |
1894 | mac_rx_queue_wake(vptr->mac_regs); | |
1da177e4 LT |
1895 | } |
1896 | ||
1897 | /** | |
2cf71d2e DJ |
1898 | * tx_srv - transmit interrupt service |
1899 | * @vptr; Velocity | |
1da177e4 | 1900 | * |
2cf71d2e DJ |
1901 | * Scan the queues looking for transmitted packets that |
1902 | * we can complete and clean up. Update any statistics as | |
1903 | * necessary/ | |
1da177e4 | 1904 | */ |
d6cade0f | 1905 | static int velocity_tx_srv(struct velocity_info *vptr) |
1da177e4 | 1906 | { |
2cf71d2e DJ |
1907 | struct tx_desc *td; |
1908 | int qnum; | |
1909 | int full = 0; | |
1910 | int idx; | |
1911 | int works = 0; | |
1912 | struct velocity_td_info *tdinfo; | |
1913 | struct net_device_stats *stats = &vptr->dev->stats; | |
1da177e4 | 1914 | |
2cf71d2e DJ |
1915 | for (qnum = 0; qnum < vptr->tx.numq; qnum++) { |
1916 | for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0; | |
1917 | idx = (idx + 1) % vptr->options.numtx) { | |
1da177e4 | 1918 | |
2cf71d2e DJ |
1919 | /* |
1920 | * Get Tx Descriptor | |
1921 | */ | |
1922 | td = &(vptr->tx.rings[qnum][idx]); | |
1923 | tdinfo = &(vptr->tx.infos[qnum][idx]); | |
1da177e4 | 1924 | |
2cf71d2e DJ |
1925 | if (td->tdesc0.len & OWNED_BY_NIC) |
1926 | break; | |
1da177e4 | 1927 | |
2cf71d2e DJ |
1928 | if ((works++ > 15)) |
1929 | break; | |
1930 | ||
1931 | if (td->tdesc0.TSR & TSR0_TERR) { | |
1932 | stats->tx_errors++; | |
1933 | stats->tx_dropped++; | |
1934 | if (td->tdesc0.TSR & TSR0_CDH) | |
1935 | stats->tx_heartbeat_errors++; | |
1936 | if (td->tdesc0.TSR & TSR0_CRS) | |
1937 | stats->tx_carrier_errors++; | |
1938 | if (td->tdesc0.TSR & TSR0_ABT) | |
1939 | stats->tx_aborted_errors++; | |
1940 | if (td->tdesc0.TSR & TSR0_OWC) | |
1941 | stats->tx_window_errors++; | |
1942 | } else { | |
1943 | stats->tx_packets++; | |
1944 | stats->tx_bytes += tdinfo->skb->len; | |
1945 | } | |
c79992fd | 1946 | velocity_free_tx_buf(vptr, tdinfo, td); |
2cf71d2e DJ |
1947 | vptr->tx.used[qnum]--; |
1948 | } | |
1949 | vptr->tx.tail[qnum] = idx; | |
1da177e4 | 1950 | |
2cf71d2e DJ |
1951 | if (AVAIL_TD(vptr, qnum) < 1) |
1952 | full = 1; | |
1953 | } | |
1da177e4 | 1954 | /* |
2cf71d2e DJ |
1955 | * Look to see if we should kick the transmit network |
1956 | * layer for more work. | |
1da177e4 | 1957 | */ |
8e95a202 JP |
1958 | if (netif_queue_stopped(vptr->dev) && (full == 0) && |
1959 | (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { | |
2cf71d2e DJ |
1960 | netif_wake_queue(vptr->dev); |
1961 | } | |
1962 | return works; | |
1963 | } | |
1964 | ||
1965 | /** | |
1966 | * velocity_rx_csum - checksum process | |
1967 | * @rd: receive packet descriptor | |
1968 | * @skb: network layer packet buffer | |
1969 | * | |
1970 | * Process the status bits for the received packet and determine | |
1971 | * if the checksum was computed and verified by the hardware | |
1972 | */ | |
1973 | static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb) | |
1974 | { | |
bc8acf2c | 1975 | skb_checksum_none_assert(skb); |
6aa20a22 | 1976 | |
2cf71d2e DJ |
1977 | if (rd->rdesc1.CSM & CSM_IPKT) { |
1978 | if (rd->rdesc1.CSM & CSM_IPOK) { | |
1979 | if ((rd->rdesc1.CSM & CSM_TCPKT) || | |
1980 | (rd->rdesc1.CSM & CSM_UDPKT)) { | |
1981 | if (!(rd->rdesc1.CSM & CSM_TUPOK)) | |
1982 | return; | |
1983 | } | |
1984 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1da177e4 LT |
1985 | } |
1986 | } | |
1da177e4 LT |
1987 | } |
1988 | ||
1da177e4 | 1989 | /** |
2cf71d2e DJ |
1990 | * velocity_rx_copy - in place Rx copy for small packets |
1991 | * @rx_skb: network layer packet buffer candidate | |
1992 | * @pkt_size: received data size | |
1993 | * @rd: receive packet descriptor | |
1da177e4 LT |
1994 | * @dev: network device |
1995 | * | |
2cf71d2e DJ |
1996 | * Replace the current skb that is scheduled for Rx processing by a |
1997 | * shorter, immediatly allocated skb, if the received packet is small | |
1998 | * enough. This function returns a negative value if the received | |
1999 | * packet is too big or if memory is exhausted. | |
1da177e4 | 2000 | */ |
2cf71d2e DJ |
2001 | static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size, |
2002 | struct velocity_info *vptr) | |
1da177e4 | 2003 | { |
2cf71d2e DJ |
2004 | int ret = -1; |
2005 | if (pkt_size < rx_copybreak) { | |
2006 | struct sk_buff *new_skb; | |
1da177e4 | 2007 | |
89d71a66 | 2008 | new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size); |
2cf71d2e DJ |
2009 | if (new_skb) { |
2010 | new_skb->ip_summed = rx_skb[0]->ip_summed; | |
2cf71d2e DJ |
2011 | skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size); |
2012 | *rx_skb = new_skb; | |
2013 | ret = 0; | |
1da177e4 LT |
2014 | } |
2015 | ||
1da177e4 | 2016 | } |
2cf71d2e | 2017 | return ret; |
1da177e4 LT |
2018 | } |
2019 | ||
2020 | /** | |
2cf71d2e DJ |
2021 | * velocity_iph_realign - IP header alignment |
2022 | * @vptr: velocity we are handling | |
2023 | * @skb: network layer packet buffer | |
2024 | * @pkt_size: received data size | |
1da177e4 | 2025 | * |
2cf71d2e DJ |
2026 | * Align IP header on a 2 bytes boundary. This behavior can be |
2027 | * configured by the user. | |
1da177e4 | 2028 | */ |
2cf71d2e DJ |
2029 | static inline void velocity_iph_realign(struct velocity_info *vptr, |
2030 | struct sk_buff *skb, int pkt_size) | |
1da177e4 | 2031 | { |
2cf71d2e DJ |
2032 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) { |
2033 | memmove(skb->data + 2, skb->data, pkt_size); | |
2034 | skb_reserve(skb, 2); | |
2035 | } | |
2036 | } | |
6aa20a22 | 2037 | |
1da177e4 | 2038 | |
2cf71d2e DJ |
2039 | /** |
2040 | * velocity_receive_frame - received packet processor | |
2041 | * @vptr: velocity we are handling | |
2042 | * @idx: ring index | |
2043 | * | |
2044 | * A packet has arrived. We process the packet and if appropriate | |
2045 | * pass the frame up the network stack | |
2046 | */ | |
2047 | static int velocity_receive_frame(struct velocity_info *vptr, int idx) | |
2048 | { | |
2049 | void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); | |
2050 | struct net_device_stats *stats = &vptr->dev->stats; | |
2051 | struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); | |
2052 | struct rx_desc *rd = &(vptr->rx.ring[idx]); | |
2053 | int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff; | |
2054 | struct sk_buff *skb; | |
1da177e4 | 2055 | |
2cf71d2e DJ |
2056 | if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { |
2057 | VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name); | |
2058 | stats->rx_length_errors++; | |
2059 | return -EINVAL; | |
2060 | } | |
1da177e4 | 2061 | |
2cf71d2e DJ |
2062 | if (rd->rdesc0.RSR & RSR_MAR) |
2063 | stats->multicast++; | |
1da177e4 | 2064 | |
2cf71d2e | 2065 | skb = rd_info->skb; |
1da177e4 | 2066 | |
2cf71d2e DJ |
2067 | pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, |
2068 | vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); | |
1da177e4 | 2069 | |
2cf71d2e DJ |
2070 | /* |
2071 | * Drop frame not meeting IEEE 802.3 | |
2072 | */ | |
1da177e4 | 2073 | |
2cf71d2e DJ |
2074 | if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) { |
2075 | if (rd->rdesc0.RSR & RSR_RL) { | |
2076 | stats->rx_length_errors++; | |
2077 | return -EINVAL; | |
2078 | } | |
2079 | } | |
6aa20a22 | 2080 | |
2cf71d2e | 2081 | pci_action = pci_dma_sync_single_for_device; |
1da177e4 | 2082 | |
2cf71d2e | 2083 | velocity_rx_csum(rd, skb); |
6aa20a22 | 2084 | |
2cf71d2e DJ |
2085 | if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { |
2086 | velocity_iph_realign(vptr, skb, pkt_len); | |
2087 | pci_action = pci_unmap_single; | |
2088 | rd_info->skb = NULL; | |
2089 | } | |
6aa20a22 | 2090 | |
2cf71d2e DJ |
2091 | pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, |
2092 | PCI_DMA_FROMDEVICE); | |
1da177e4 | 2093 | |
2cf71d2e DJ |
2094 | skb_put(skb, pkt_len - 4); |
2095 | skb->protocol = eth_type_trans(skb, vptr->dev); | |
2096 | ||
2097 | if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) { | |
2098 | vlan_hwaccel_rx(skb, vptr->vlgrp, | |
2099 | swab16(le16_to_cpu(rd->rdesc1.PQTAG))); | |
2100 | } else | |
2101 | netif_rx(skb); | |
6aa20a22 | 2102 | |
2cf71d2e | 2103 | stats->rx_bytes += pkt_len; |
6aa20a22 | 2104 | |
2cf71d2e | 2105 | return 0; |
1da177e4 LT |
2106 | } |
2107 | ||
1da177e4 LT |
2108 | |
2109 | /** | |
2cf71d2e DJ |
2110 | * velocity_rx_srv - service RX interrupt |
2111 | * @vptr: velocity | |
1da177e4 | 2112 | * |
2cf71d2e DJ |
2113 | * Walk the receive ring of the velocity adapter and remove |
2114 | * any received packets from the receive queue. Hand the ring | |
2115 | * slots back to the adapter for reuse. | |
1da177e4 | 2116 | */ |
d6cade0f | 2117 | static int velocity_rx_srv(struct velocity_info *vptr, int budget_left) |
1da177e4 | 2118 | { |
2cf71d2e DJ |
2119 | struct net_device_stats *stats = &vptr->dev->stats; |
2120 | int rd_curr = vptr->rx.curr; | |
2121 | int works = 0; | |
2122 | ||
dfff7144 | 2123 | while (works < budget_left) { |
2cf71d2e DJ |
2124 | struct rx_desc *rd = vptr->rx.ring + rd_curr; |
2125 | ||
2126 | if (!vptr->rx.info[rd_curr].skb) | |
2127 | break; | |
2128 | ||
2129 | if (rd->rdesc0.len & OWNED_BY_NIC) | |
2130 | break; | |
2131 | ||
2132 | rmb(); | |
1da177e4 | 2133 | |
2cf71d2e DJ |
2134 | /* |
2135 | * Don't drop CE or RL error frame although RXOK is off | |
2136 | */ | |
2137 | if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) { | |
2138 | if (velocity_receive_frame(vptr, rd_curr) < 0) | |
2139 | stats->rx_dropped++; | |
2140 | } else { | |
2141 | if (rd->rdesc0.RSR & RSR_CRC) | |
2142 | stats->rx_crc_errors++; | |
2143 | if (rd->rdesc0.RSR & RSR_FAE) | |
2144 | stats->rx_frame_errors++; | |
1da177e4 | 2145 | |
2cf71d2e DJ |
2146 | stats->rx_dropped++; |
2147 | } | |
6aa20a22 | 2148 | |
2cf71d2e | 2149 | rd->size |= RX_INTEN; |
1da177e4 | 2150 | |
2cf71d2e DJ |
2151 | rd_curr++; |
2152 | if (rd_curr >= vptr->options.numrx) | |
2153 | rd_curr = 0; | |
dfff7144 SK |
2154 | works++; |
2155 | } | |
1da177e4 | 2156 | |
2cf71d2e | 2157 | vptr->rx.curr = rd_curr; |
1da177e4 | 2158 | |
2cf71d2e DJ |
2159 | if ((works > 0) && (velocity_rx_refill(vptr) > 0)) |
2160 | velocity_give_many_rx_descs(vptr); | |
2161 | ||
2162 | VAR_USED(stats); | |
2163 | return works; | |
2164 | } | |
6aa20a22 | 2165 | |
dfff7144 SK |
2166 | static int velocity_poll(struct napi_struct *napi, int budget) |
2167 | { | |
2168 | struct velocity_info *vptr = container_of(napi, | |
2169 | struct velocity_info, napi); | |
2170 | unsigned int rx_done; | |
3f2e8d9f | 2171 | unsigned long flags; |
dfff7144 | 2172 | |
3f2e8d9f | 2173 | spin_lock_irqsave(&vptr->lock, flags); |
dfff7144 SK |
2174 | /* |
2175 | * Do rx and tx twice for performance (taken from the VIA | |
2176 | * out-of-tree driver). | |
2177 | */ | |
d6cade0f SK |
2178 | rx_done = velocity_rx_srv(vptr, budget / 2); |
2179 | velocity_tx_srv(vptr); | |
2180 | rx_done += velocity_rx_srv(vptr, budget - rx_done); | |
2181 | velocity_tx_srv(vptr); | |
dfff7144 SK |
2182 | |
2183 | /* If budget not fully consumed, exit the polling mode */ | |
2184 | if (rx_done < budget) { | |
2185 | napi_complete(napi); | |
2186 | mac_enable_int(vptr->mac_regs); | |
2187 | } | |
3f2e8d9f | 2188 | spin_unlock_irqrestore(&vptr->lock, flags); |
dfff7144 SK |
2189 | |
2190 | return rx_done; | |
2191 | } | |
6aa20a22 | 2192 | |
1da177e4 | 2193 | /** |
2cf71d2e DJ |
2194 | * velocity_intr - interrupt callback |
2195 | * @irq: interrupt number | |
2196 | * @dev_instance: interrupting device | |
1da177e4 | 2197 | * |
2cf71d2e DJ |
2198 | * Called whenever an interrupt is generated by the velocity |
2199 | * adapter IRQ line. We may not be the source of the interrupt | |
2200 | * and need to identify initially if we are, and if not exit as | |
2201 | * efficiently as possible. | |
1da177e4 | 2202 | */ |
2cf71d2e | 2203 | static irqreturn_t velocity_intr(int irq, void *dev_instance) |
1da177e4 | 2204 | { |
2cf71d2e DJ |
2205 | struct net_device *dev = dev_instance; |
2206 | struct velocity_info *vptr = netdev_priv(dev); | |
2207 | u32 isr_status; | |
1da177e4 | 2208 | |
2cf71d2e DJ |
2209 | spin_lock(&vptr->lock); |
2210 | isr_status = mac_read_isr(vptr->mac_regs); | |
2211 | ||
2212 | /* Not us ? */ | |
2213 | if (isr_status == 0) { | |
2214 | spin_unlock(&vptr->lock); | |
2215 | return IRQ_NONE; | |
1da177e4 | 2216 | } |
1da177e4 | 2217 | |
3f2e8d9f SK |
2218 | /* Ack the interrupt */ |
2219 | mac_write_isr(vptr->mac_regs, isr_status); | |
2220 | ||
dfff7144 SK |
2221 | if (likely(napi_schedule_prep(&vptr->napi))) { |
2222 | mac_disable_int(vptr->mac_regs); | |
2223 | __napi_schedule(&vptr->napi); | |
1da177e4 | 2224 | } |
3f2e8d9f SK |
2225 | |
2226 | if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) | |
2227 | velocity_error(vptr, isr_status); | |
2228 | ||
2cf71d2e | 2229 | spin_unlock(&vptr->lock); |
2cf71d2e | 2230 | |
dfff7144 | 2231 | return IRQ_HANDLED; |
1da177e4 LT |
2232 | } |
2233 | ||
2234 | /** | |
2cf71d2e DJ |
2235 | * velocity_open - interface activation callback |
2236 | * @dev: network layer device to open | |
1da177e4 | 2237 | * |
2cf71d2e DJ |
2238 | * Called when the network layer brings the interface up. Returns |
2239 | * a negative posix error code on failure, or zero on success. | |
2240 | * | |
2241 | * All the ring allocation and set up is done on open for this | |
2242 | * adapter to minimise memory usage when inactive | |
1da177e4 | 2243 | */ |
2cf71d2e | 2244 | static int velocity_open(struct net_device *dev) |
1da177e4 | 2245 | { |
2cf71d2e DJ |
2246 | struct velocity_info *vptr = netdev_priv(dev); |
2247 | int ret; | |
1da177e4 | 2248 | |
2cf71d2e DJ |
2249 | ret = velocity_init_rings(vptr, dev->mtu); |
2250 | if (ret < 0) | |
2251 | goto out; | |
1da177e4 | 2252 | |
2cf71d2e DJ |
2253 | /* Ensure chip is running */ |
2254 | pci_set_power_state(vptr->pdev, PCI_D0); | |
1da177e4 | 2255 | |
2cf71d2e DJ |
2256 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
2257 | ||
1ede9b52 | 2258 | ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED, |
2cf71d2e DJ |
2259 | dev->name, dev); |
2260 | if (ret < 0) { | |
2261 | /* Power down the chip */ | |
2262 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
2263 | velocity_free_rings(vptr); | |
2264 | goto out; | |
1da177e4 LT |
2265 | } |
2266 | ||
35bb5cad BH |
2267 | velocity_give_many_rx_descs(vptr); |
2268 | ||
2cf71d2e DJ |
2269 | mac_enable_int(vptr->mac_regs); |
2270 | netif_start_queue(dev); | |
dfff7144 | 2271 | napi_enable(&vptr->napi); |
2cf71d2e DJ |
2272 | vptr->flags |= VELOCITY_FLAGS_OPENED; |
2273 | out: | |
2274 | return ret; | |
1da177e4 LT |
2275 | } |
2276 | ||
2277 | /** | |
2cf71d2e DJ |
2278 | * velocity_shutdown - shut down the chip |
2279 | * @vptr: velocity to deactivate | |
1da177e4 | 2280 | * |
2cf71d2e DJ |
2281 | * Shuts down the internal operations of the velocity and |
2282 | * disables interrupts, autopolling, transmit and receive | |
1da177e4 | 2283 | */ |
2cf71d2e | 2284 | static void velocity_shutdown(struct velocity_info *vptr) |
1da177e4 | 2285 | { |
2cf71d2e DJ |
2286 | struct mac_regs __iomem *regs = vptr->mac_regs; |
2287 | mac_disable_int(regs); | |
2288 | writel(CR0_STOP, ®s->CR0Set); | |
2289 | writew(0xFFFF, ®s->TDCSRClr); | |
2290 | writeb(0xFF, ®s->RDCSRClr); | |
1da177e4 | 2291 | safe_disable_mii_autopoll(regs); |
2cf71d2e DJ |
2292 | mac_clear_isr(regs); |
2293 | } | |
1da177e4 | 2294 | |
2cf71d2e DJ |
2295 | /** |
2296 | * velocity_change_mtu - MTU change callback | |
2297 | * @dev: network device | |
2298 | * @new_mtu: desired MTU | |
2299 | * | |
2300 | * Handle requests from the networking layer for MTU change on | |
2301 | * this interface. It gets called on a change by the network layer. | |
2302 | * Return zero for success or negative posix error code. | |
2303 | */ | |
2304 | static int velocity_change_mtu(struct net_device *dev, int new_mtu) | |
2305 | { | |
2306 | struct velocity_info *vptr = netdev_priv(dev); | |
2307 | int ret = 0; | |
1da177e4 | 2308 | |
2cf71d2e DJ |
2309 | if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) { |
2310 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n", | |
2311 | vptr->dev->name); | |
2312 | ret = -EINVAL; | |
2313 | goto out_0; | |
2314 | } | |
1da177e4 | 2315 | |
2cf71d2e DJ |
2316 | if (!netif_running(dev)) { |
2317 | dev->mtu = new_mtu; | |
2318 | goto out_0; | |
1da177e4 LT |
2319 | } |
2320 | ||
2cf71d2e DJ |
2321 | if (dev->mtu != new_mtu) { |
2322 | struct velocity_info *tmp_vptr; | |
2323 | unsigned long flags; | |
2324 | struct rx_info rx; | |
2325 | struct tx_info tx; | |
1da177e4 | 2326 | |
2cf71d2e DJ |
2327 | tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL); |
2328 | if (!tmp_vptr) { | |
2329 | ret = -ENOMEM; | |
2330 | goto out_0; | |
2331 | } | |
1da177e4 | 2332 | |
2cf71d2e DJ |
2333 | tmp_vptr->dev = dev; |
2334 | tmp_vptr->pdev = vptr->pdev; | |
2335 | tmp_vptr->options = vptr->options; | |
2336 | tmp_vptr->tx.numq = vptr->tx.numq; | |
6aa20a22 | 2337 | |
2cf71d2e DJ |
2338 | ret = velocity_init_rings(tmp_vptr, new_mtu); |
2339 | if (ret < 0) | |
2340 | goto out_free_tmp_vptr_1; | |
1da177e4 | 2341 | |
2cf71d2e | 2342 | spin_lock_irqsave(&vptr->lock, flags); |
1da177e4 | 2343 | |
2cf71d2e DJ |
2344 | netif_stop_queue(dev); |
2345 | velocity_shutdown(vptr); | |
1da177e4 | 2346 | |
2cf71d2e DJ |
2347 | rx = vptr->rx; |
2348 | tx = vptr->tx; | |
1da177e4 | 2349 | |
2cf71d2e DJ |
2350 | vptr->rx = tmp_vptr->rx; |
2351 | vptr->tx = tmp_vptr->tx; | |
1da177e4 | 2352 | |
2cf71d2e DJ |
2353 | tmp_vptr->rx = rx; |
2354 | tmp_vptr->tx = tx; | |
1da177e4 | 2355 | |
2cf71d2e | 2356 | dev->mtu = new_mtu; |
6aa20a22 | 2357 | |
2cf71d2e | 2358 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
1da177e4 | 2359 | |
35bb5cad BH |
2360 | velocity_give_many_rx_descs(vptr); |
2361 | ||
2cf71d2e DJ |
2362 | mac_enable_int(vptr->mac_regs); |
2363 | netif_start_queue(dev); | |
6aa20a22 | 2364 | |
2cf71d2e | 2365 | spin_unlock_irqrestore(&vptr->lock, flags); |
1da177e4 | 2366 | |
2cf71d2e | 2367 | velocity_free_rings(tmp_vptr); |
1da177e4 | 2368 | |
2cf71d2e DJ |
2369 | out_free_tmp_vptr_1: |
2370 | kfree(tmp_vptr); | |
2371 | } | |
2372 | out_0: | |
2373 | return ret; | |
1da177e4 | 2374 | } |
1da177e4 LT |
2375 | |
2376 | /** | |
2cf71d2e DJ |
2377 | * velocity_mii_ioctl - MII ioctl handler |
2378 | * @dev: network device | |
2379 | * @ifr: the ifreq block for the ioctl | |
2380 | * @cmd: the command | |
1da177e4 | 2381 | * |
2cf71d2e DJ |
2382 | * Process MII requests made via ioctl from the network layer. These |
2383 | * are used by tools like kudzu to interrogate the link state of the | |
2384 | * hardware | |
1da177e4 | 2385 | */ |
2cf71d2e | 2386 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1da177e4 | 2387 | { |
2cf71d2e DJ |
2388 | struct velocity_info *vptr = netdev_priv(dev); |
2389 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
2390 | unsigned long flags; | |
2391 | struct mii_ioctl_data *miidata = if_mii(ifr); | |
2392 | int err; | |
1da177e4 | 2393 | |
2cf71d2e DJ |
2394 | switch (cmd) { |
2395 | case SIOCGMIIPHY: | |
2396 | miidata->phy_id = readb(®s->MIIADR) & 0x1f; | |
1da177e4 | 2397 | break; |
2cf71d2e | 2398 | case SIOCGMIIREG: |
2cf71d2e DJ |
2399 | if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0) |
2400 | return -ETIMEDOUT; | |
1da177e4 | 2401 | break; |
2cf71d2e | 2402 | case SIOCSMIIREG: |
2cf71d2e DJ |
2403 | spin_lock_irqsave(&vptr->lock, flags); |
2404 | err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in); | |
2405 | spin_unlock_irqrestore(&vptr->lock, flags); | |
2406 | check_connection_type(vptr->mac_regs); | |
2407 | if (err) | |
2408 | return err; | |
1da177e4 LT |
2409 | break; |
2410 | default: | |
2cf71d2e | 2411 | return -EOPNOTSUPP; |
1da177e4 | 2412 | } |
2cf71d2e | 2413 | return 0; |
1da177e4 LT |
2414 | } |
2415 | ||
2cf71d2e | 2416 | |
1da177e4 | 2417 | /** |
2cf71d2e DJ |
2418 | * velocity_ioctl - ioctl entry point |
2419 | * @dev: network device | |
2420 | * @rq: interface request ioctl | |
2421 | * @cmd: command code | |
1da177e4 | 2422 | * |
2cf71d2e DJ |
2423 | * Called when the user issues an ioctl request to the network |
2424 | * device in question. The velocity interface supports MII. | |
1da177e4 | 2425 | */ |
2cf71d2e DJ |
2426 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
2427 | { | |
2428 | struct velocity_info *vptr = netdev_priv(dev); | |
2429 | int ret; | |
6aa20a22 | 2430 | |
2cf71d2e DJ |
2431 | /* If we are asked for information and the device is power |
2432 | saving then we need to bring the device back up to talk to it */ | |
1da177e4 | 2433 | |
2cf71d2e DJ |
2434 | if (!netif_running(dev)) |
2435 | pci_set_power_state(vptr->pdev, PCI_D0); | |
1da177e4 | 2436 | |
2cf71d2e DJ |
2437 | switch (cmd) { |
2438 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ | |
2439 | case SIOCGMIIREG: /* Read MII PHY register. */ | |
2440 | case SIOCSMIIREG: /* Write to MII PHY register. */ | |
2441 | ret = velocity_mii_ioctl(dev, rq, cmd); | |
2442 | break; | |
1da177e4 | 2443 | |
2cf71d2e DJ |
2444 | default: |
2445 | ret = -EOPNOTSUPP; | |
2446 | } | |
2447 | if (!netif_running(dev)) | |
2448 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
1da177e4 | 2449 | |
c4067400 | 2450 | |
2cf71d2e | 2451 | return ret; |
1da177e4 LT |
2452 | } |
2453 | ||
2454 | /** | |
2cf71d2e DJ |
2455 | * velocity_get_status - statistics callback |
2456 | * @dev: network device | |
1da177e4 | 2457 | * |
2cf71d2e DJ |
2458 | * Callback from the network layer to allow driver statistics |
2459 | * to be resynchronized with hardware collected state. In the | |
2460 | * case of the velocity we need to pull the MIB counters from | |
2461 | * the hardware into the counters before letting the network | |
2462 | * layer display them. | |
1da177e4 | 2463 | */ |
2cf71d2e | 2464 | static struct net_device_stats *velocity_get_stats(struct net_device *dev) |
1da177e4 | 2465 | { |
2cf71d2e | 2466 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 2467 | |
2cf71d2e DJ |
2468 | /* If the hardware is down, don't touch MII */ |
2469 | if (!netif_running(dev)) | |
2470 | return &dev->stats; | |
1da177e4 | 2471 | |
2cf71d2e DJ |
2472 | spin_lock_irq(&vptr->lock); |
2473 | velocity_update_hw_mibs(vptr); | |
2474 | spin_unlock_irq(&vptr->lock); | |
1da177e4 | 2475 | |
2cf71d2e DJ |
2476 | dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts]; |
2477 | dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts]; | |
2478 | dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors]; | |
1da177e4 | 2479 | |
2cf71d2e DJ |
2480 | // unsigned long rx_dropped; /* no space in linux buffers */ |
2481 | dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions]; | |
2482 | /* detailed rx_errors: */ | |
2483 | // unsigned long rx_length_errors; | |
2484 | // unsigned long rx_over_errors; /* receiver ring buff overflow */ | |
2485 | dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE]; | |
2486 | // unsigned long rx_frame_errors; /* recv'd frame alignment error */ | |
2487 | // unsigned long rx_fifo_errors; /* recv'r fifo overrun */ | |
2488 | // unsigned long rx_missed_errors; /* receiver missed packet */ | |
2489 | ||
2490 | /* detailed tx_errors */ | |
2491 | // unsigned long tx_fifo_errors; | |
2492 | ||
2493 | return &dev->stats; | |
1da177e4 LT |
2494 | } |
2495 | ||
2cf71d2e DJ |
2496 | /** |
2497 | * velocity_close - close adapter callback | |
2498 | * @dev: network device | |
2499 | * | |
2500 | * Callback from the network layer when the velocity is being | |
2501 | * deactivated by the network layer | |
2502 | */ | |
2503 | static int velocity_close(struct net_device *dev) | |
1da177e4 | 2504 | { |
2cf71d2e | 2505 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 2506 | |
dfff7144 | 2507 | napi_disable(&vptr->napi); |
2cf71d2e DJ |
2508 | netif_stop_queue(dev); |
2509 | velocity_shutdown(vptr); | |
1da177e4 | 2510 | |
2cf71d2e DJ |
2511 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) |
2512 | velocity_get_ip(vptr); | |
2513 | if (dev->irq != 0) | |
2514 | free_irq(dev->irq, dev); | |
1da177e4 | 2515 | |
2cf71d2e DJ |
2516 | /* Power down the chip */ |
2517 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
1da177e4 | 2518 | |
2cf71d2e | 2519 | velocity_free_rings(vptr); |
1da177e4 | 2520 | |
2cf71d2e DJ |
2521 | vptr->flags &= (~VELOCITY_FLAGS_OPENED); |
2522 | return 0; | |
1da177e4 LT |
2523 | } |
2524 | ||
2525 | /** | |
2cf71d2e DJ |
2526 | * velocity_xmit - transmit packet callback |
2527 | * @skb: buffer to transmit | |
2528 | * @dev: network device | |
1da177e4 | 2529 | * |
2cf71d2e DJ |
2530 | * Called by the networ layer to request a packet is queued to |
2531 | * the velocity. Returns zero on success. | |
1da177e4 | 2532 | */ |
61357325 SH |
2533 | static netdev_tx_t velocity_xmit(struct sk_buff *skb, |
2534 | struct net_device *dev) | |
1da177e4 | 2535 | { |
2cf71d2e DJ |
2536 | struct velocity_info *vptr = netdev_priv(dev); |
2537 | int qnum = 0; | |
2538 | struct tx_desc *td_ptr; | |
2539 | struct velocity_td_info *tdinfo; | |
2540 | unsigned long flags; | |
2541 | int pktlen; | |
c79992fd SK |
2542 | int index, prev; |
2543 | int i = 0; | |
1da177e4 | 2544 | |
2cf71d2e DJ |
2545 | if (skb_padto(skb, ETH_ZLEN)) |
2546 | goto out; | |
1da177e4 | 2547 | |
c79992fd SK |
2548 | /* The hardware can handle at most 7 memory segments, so merge |
2549 | * the skb if there are more */ | |
2550 | if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) { | |
2551 | kfree_skb(skb); | |
2552 | return NETDEV_TX_OK; | |
2553 | } | |
2554 | ||
2555 | pktlen = skb_shinfo(skb)->nr_frags == 0 ? | |
2556 | max_t(unsigned int, skb->len, ETH_ZLEN) : | |
2557 | skb_headlen(skb); | |
1da177e4 | 2558 | |
2cf71d2e | 2559 | spin_lock_irqsave(&vptr->lock, flags); |
1da177e4 | 2560 | |
2cf71d2e DJ |
2561 | index = vptr->tx.curr[qnum]; |
2562 | td_ptr = &(vptr->tx.rings[qnum][index]); | |
2563 | tdinfo = &(vptr->tx.infos[qnum][index]); | |
1da177e4 | 2564 | |
2cf71d2e DJ |
2565 | td_ptr->tdesc1.TCR = TCR0_TIC; |
2566 | td_ptr->td_buf[0].size &= ~TD_QUEUE; | |
1da177e4 | 2567 | |
2cf71d2e DJ |
2568 | /* |
2569 | * Map the linear network buffer into PCI space and | |
2570 | * add it to the transmit ring. | |
2571 | */ | |
2572 | tdinfo->skb = skb; | |
2573 | tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); | |
c79992fd | 2574 | td_ptr->tdesc0.len = cpu_to_le16(pktlen); |
2cf71d2e DJ |
2575 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); |
2576 | td_ptr->td_buf[0].pa_high = 0; | |
c79992fd SK |
2577 | td_ptr->td_buf[0].size = cpu_to_le16(pktlen); |
2578 | ||
2579 | /* Handle fragments */ | |
2580 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
2581 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2582 | ||
2583 | tdinfo->skb_dma[i + 1] = pci_map_page(vptr->pdev, frag->page, | |
2584 | frag->page_offset, frag->size, | |
2585 | PCI_DMA_TODEVICE); | |
2586 | ||
2587 | td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]); | |
2588 | td_ptr->td_buf[i + 1].pa_high = 0; | |
2589 | td_ptr->td_buf[i + 1].size = cpu_to_le16(frag->size); | |
2590 | } | |
2591 | tdinfo->nskb_dma = i + 1; | |
2cf71d2e DJ |
2592 | |
2593 | td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16; | |
2594 | ||
eab6d18d | 2595 | if (vlan_tx_tag_present(skb)) { |
2cf71d2e DJ |
2596 | td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
2597 | td_ptr->tdesc1.TCR |= TCR0_VETAG; | |
2598 | } | |
2599 | ||
2600 | /* | |
2601 | * Handle hardware checksum | |
2602 | */ | |
8e95a202 JP |
2603 | if ((dev->features & NETIF_F_IP_CSUM) && |
2604 | (skb->ip_summed == CHECKSUM_PARTIAL)) { | |
2cf71d2e DJ |
2605 | const struct iphdr *ip = ip_hdr(skb); |
2606 | if (ip->protocol == IPPROTO_TCP) | |
2607 | td_ptr->tdesc1.TCR |= TCR0_TCPCK; | |
2608 | else if (ip->protocol == IPPROTO_UDP) | |
2609 | td_ptr->tdesc1.TCR |= (TCR0_UDPCK); | |
2610 | td_ptr->tdesc1.TCR |= TCR0_IPCK; | |
2611 | } | |
1da177e4 | 2612 | |
c79992fd SK |
2613 | prev = index - 1; |
2614 | if (prev < 0) | |
2615 | prev = vptr->options.numtx - 1; | |
2616 | td_ptr->tdesc0.len |= OWNED_BY_NIC; | |
2617 | vptr->tx.used[qnum]++; | |
2618 | vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx; | |
1da177e4 | 2619 | |
c79992fd SK |
2620 | if (AVAIL_TD(vptr, qnum) < 1) |
2621 | netif_stop_queue(dev); | |
1da177e4 | 2622 | |
c79992fd SK |
2623 | td_ptr = &(vptr->tx.rings[qnum][prev]); |
2624 | td_ptr->td_buf[0].size |= TD_QUEUE; | |
2625 | mac_tx_queue_wake(vptr->mac_regs, qnum); | |
1da177e4 | 2626 | |
2cf71d2e DJ |
2627 | spin_unlock_irqrestore(&vptr->lock, flags); |
2628 | out: | |
2629 | return NETDEV_TX_OK; | |
1da177e4 LT |
2630 | } |
2631 | ||
2632 | ||
2cf71d2e DJ |
2633 | static const struct net_device_ops velocity_netdev_ops = { |
2634 | .ndo_open = velocity_open, | |
2635 | .ndo_stop = velocity_close, | |
2636 | .ndo_start_xmit = velocity_xmit, | |
2637 | .ndo_get_stats = velocity_get_stats, | |
2638 | .ndo_validate_addr = eth_validate_addr, | |
2639 | .ndo_set_mac_address = eth_mac_addr, | |
2640 | .ndo_set_multicast_list = velocity_set_multi, | |
2641 | .ndo_change_mtu = velocity_change_mtu, | |
2642 | .ndo_do_ioctl = velocity_ioctl, | |
2643 | .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid, | |
2644 | .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid, | |
2645 | .ndo_vlan_rx_register = velocity_vlan_rx_register, | |
2646 | }; | |
2647 | ||
1da177e4 | 2648 | /** |
2cf71d2e DJ |
2649 | * velocity_init_info - init private data |
2650 | * @pdev: PCI device | |
2651 | * @vptr: Velocity info | |
2652 | * @info: Board type | |
1da177e4 | 2653 | * |
2cf71d2e DJ |
2654 | * Set up the initial velocity_info struct for the device that has been |
2655 | * discovered. | |
1da177e4 | 2656 | */ |
2cf71d2e DJ |
2657 | static void __devinit velocity_init_info(struct pci_dev *pdev, |
2658 | struct velocity_info *vptr, | |
2659 | const struct velocity_info_tbl *info) | |
1da177e4 | 2660 | { |
2cf71d2e DJ |
2661 | memset(vptr, 0, sizeof(struct velocity_info)); |
2662 | ||
2663 | vptr->pdev = pdev; | |
2664 | vptr->chip_id = info->chip_id; | |
2665 | vptr->tx.numq = info->txqueue; | |
2666 | vptr->multicast_limit = MCAM_SIZE; | |
2667 | spin_lock_init(&vptr->lock); | |
6aa20a22 | 2668 | } |
1da177e4 LT |
2669 | |
2670 | /** | |
2cf71d2e DJ |
2671 | * velocity_get_pci_info - retrieve PCI info for device |
2672 | * @vptr: velocity device | |
2673 | * @pdev: PCI device it matches | |
1da177e4 | 2674 | * |
2cf71d2e DJ |
2675 | * Retrieve the PCI configuration space data that interests us from |
2676 | * the kernel PCI layer | |
1da177e4 | 2677 | */ |
2cf71d2e | 2678 | static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev) |
1da177e4 | 2679 | { |
2cf71d2e | 2680 | vptr->rev_id = pdev->revision; |
1da177e4 | 2681 | |
2cf71d2e | 2682 | pci_set_master(pdev); |
1da177e4 | 2683 | |
2cf71d2e DJ |
2684 | vptr->ioaddr = pci_resource_start(pdev, 0); |
2685 | vptr->memaddr = pci_resource_start(pdev, 1); | |
1da177e4 | 2686 | |
2cf71d2e DJ |
2687 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { |
2688 | dev_err(&pdev->dev, | |
2689 | "region #0 is not an I/O resource, aborting.\n"); | |
2690 | return -EINVAL; | |
2691 | } | |
2692 | ||
2693 | if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) { | |
2694 | dev_err(&pdev->dev, | |
2695 | "region #1 is an I/O resource, aborting.\n"); | |
2696 | return -EINVAL; | |
2697 | } | |
2698 | ||
2699 | if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) { | |
2700 | dev_err(&pdev->dev, "region #1 is too small.\n"); | |
2701 | return -EINVAL; | |
2702 | } | |
2703 | vptr->pdev = pdev; | |
6aa20a22 | 2704 | |
1da177e4 LT |
2705 | return 0; |
2706 | } | |
2707 | ||
2cf71d2e DJ |
2708 | /** |
2709 | * velocity_print_info - per driver data | |
2710 | * @vptr: velocity | |
2711 | * | |
2712 | * Print per driver data as the kernel driver finds Velocity | |
2713 | * hardware | |
2714 | */ | |
2715 | static void __devinit velocity_print_info(struct velocity_info *vptr) | |
1da177e4 | 2716 | { |
2cf71d2e | 2717 | struct net_device *dev = vptr->dev; |
1da177e4 | 2718 | |
2cf71d2e | 2719 | printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id)); |
aa7c68a5 HS |
2720 | printk(KERN_INFO "%s: Ethernet Address: %pM\n", |
2721 | dev->name, dev->dev_addr); | |
1da177e4 LT |
2722 | } |
2723 | ||
2724 | static u32 velocity_get_link(struct net_device *dev) | |
2725 | { | |
8ab6f3f7 | 2726 | struct velocity_info *vptr = netdev_priv(dev); |
c4067400 | 2727 | struct mac_regs __iomem *regs = vptr->mac_regs; |
59b693fb | 2728 | return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0; |
1da177e4 LT |
2729 | } |
2730 | ||
1da177e4 | 2731 | |
2cf71d2e DJ |
2732 | /** |
2733 | * velocity_found1 - set up discovered velocity card | |
2734 | * @pdev: PCI device | |
2735 | * @ent: PCI device table entry that matched | |
2736 | * | |
2737 | * Configure a discovered adapter from scratch. Return a negative | |
2738 | * errno error code on failure paths. | |
2739 | */ | |
2740 | static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1da177e4 | 2741 | { |
2cf71d2e DJ |
2742 | static int first = 1; |
2743 | struct net_device *dev; | |
2744 | int i; | |
2745 | const char *drv_string; | |
2746 | const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data]; | |
2747 | struct velocity_info *vptr; | |
2748 | struct mac_regs __iomem *regs; | |
2749 | int ret = -ENOMEM; | |
1da177e4 | 2750 | |
2cf71d2e DJ |
2751 | /* FIXME: this driver, like almost all other ethernet drivers, |
2752 | * can support more than MAX_UNITS. | |
2753 | */ | |
2754 | if (velocity_nics >= MAX_UNITS) { | |
2755 | dev_notice(&pdev->dev, "already found %d NICs.\n", | |
2756 | velocity_nics); | |
2757 | return -ENODEV; | |
2758 | } | |
1da177e4 | 2759 | |
2cf71d2e DJ |
2760 | dev = alloc_etherdev(sizeof(struct velocity_info)); |
2761 | if (!dev) { | |
2762 | dev_err(&pdev->dev, "allocate net device failed.\n"); | |
2763 | goto out; | |
2764 | } | |
1da177e4 | 2765 | |
2cf71d2e | 2766 | /* Chain it all together */ |
1da177e4 | 2767 | |
2cf71d2e DJ |
2768 | SET_NETDEV_DEV(dev, &pdev->dev); |
2769 | vptr = netdev_priv(dev); | |
2770 | ||
2771 | ||
2772 | if (first) { | |
2773 | printk(KERN_INFO "%s Ver. %s\n", | |
2774 | VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); | |
2775 | printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n"); | |
2776 | printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n"); | |
2777 | first = 0; | |
2778 | } | |
2779 | ||
2780 | velocity_init_info(pdev, vptr, info); | |
2781 | ||
2782 | vptr->dev = dev; | |
2783 | ||
2cf71d2e DJ |
2784 | ret = pci_enable_device(pdev); |
2785 | if (ret < 0) | |
2786 | goto err_free_dev; | |
2787 | ||
889635fd KV |
2788 | dev->irq = pdev->irq; |
2789 | ||
2cf71d2e DJ |
2790 | ret = velocity_get_pci_info(vptr, pdev); |
2791 | if (ret < 0) { | |
2792 | /* error message already printed */ | |
2793 | goto err_disable; | |
1da177e4 | 2794 | } |
2cf71d2e DJ |
2795 | |
2796 | ret = pci_request_regions(pdev, VELOCITY_NAME); | |
2797 | if (ret < 0) { | |
2798 | dev_err(&pdev->dev, "No PCI resources.\n"); | |
2799 | goto err_disable; | |
1da177e4 | 2800 | } |
2cf71d2e DJ |
2801 | |
2802 | regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE); | |
2803 | if (regs == NULL) { | |
2804 | ret = -EIO; | |
2805 | goto err_release_res; | |
1da177e4 | 2806 | } |
1da177e4 | 2807 | |
2cf71d2e | 2808 | vptr->mac_regs = regs; |
1da177e4 | 2809 | |
2cf71d2e | 2810 | mac_wol_reset(regs); |
1da177e4 | 2811 | |
2cf71d2e | 2812 | dev->base_addr = vptr->ioaddr; |
1da177e4 | 2813 | |
2cf71d2e DJ |
2814 | for (i = 0; i < 6; i++) |
2815 | dev->dev_addr[i] = readb(®s->PAR[i]); | |
6aa20a22 | 2816 | |
6aa20a22 | 2817 | |
2cf71d2e | 2818 | drv_string = dev_driver_string(&pdev->dev); |
1da177e4 | 2819 | |
2cf71d2e | 2820 | velocity_get_options(&vptr->options, velocity_nics, drv_string); |
1da177e4 | 2821 | |
2cf71d2e DJ |
2822 | /* |
2823 | * Mask out the options cannot be set to the chip | |
2824 | */ | |
6aa20a22 | 2825 | |
2cf71d2e | 2826 | vptr->options.flags &= info->flags; |
1da177e4 | 2827 | |
2cf71d2e DJ |
2828 | /* |
2829 | * Enable the chip specified capbilities | |
2830 | */ | |
1da177e4 | 2831 | |
2cf71d2e | 2832 | vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL); |
1da177e4 | 2833 | |
2cf71d2e DJ |
2834 | vptr->wol_opts = vptr->options.wol_opts; |
2835 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
1da177e4 | 2836 | |
2cf71d2e | 2837 | vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs); |
1da177e4 | 2838 | |
2cf71d2e DJ |
2839 | dev->irq = pdev->irq; |
2840 | dev->netdev_ops = &velocity_netdev_ops; | |
2841 | dev->ethtool_ops = &velocity_ethtool_ops; | |
dfff7144 | 2842 | netif_napi_add(dev, &vptr->napi, velocity_poll, VELOCITY_NAPI_WEIGHT); |
6aa20a22 | 2843 | |
2cf71d2e | 2844 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | |
de2b96f1 | 2845 | NETIF_F_HW_VLAN_RX | NETIF_F_IP_CSUM; |
1da177e4 | 2846 | |
2cf71d2e DJ |
2847 | ret = register_netdev(dev); |
2848 | if (ret < 0) | |
2849 | goto err_iounmap; | |
2850 | ||
2851 | if (!velocity_get_link(dev)) { | |
2852 | netif_carrier_off(dev); | |
2853 | vptr->mii_status |= VELOCITY_LINK_FAIL; | |
1da177e4 LT |
2854 | } |
2855 | ||
2cf71d2e DJ |
2856 | velocity_print_info(vptr); |
2857 | pci_set_drvdata(pdev, dev); | |
1da177e4 | 2858 | |
2cf71d2e | 2859 | /* and leave the chip powered down */ |
1da177e4 | 2860 | |
2cf71d2e | 2861 | pci_set_power_state(pdev, PCI_D3hot); |
2cf71d2e DJ |
2862 | velocity_nics++; |
2863 | out: | |
2864 | return ret; | |
2865 | ||
2866 | err_iounmap: | |
2867 | iounmap(regs); | |
2868 | err_release_res: | |
2869 | pci_release_regions(pdev); | |
2870 | err_disable: | |
2871 | pci_disable_device(pdev); | |
2872 | err_free_dev: | |
2873 | free_netdev(dev); | |
2874 | goto out; | |
1da177e4 LT |
2875 | } |
2876 | ||
2cf71d2e DJ |
2877 | |
2878 | #ifdef CONFIG_PM | |
1da177e4 LT |
2879 | /** |
2880 | * wol_calc_crc - WOL CRC | |
2881 | * @pattern: data pattern | |
2882 | * @mask_pattern: mask | |
2883 | * | |
2884 | * Compute the wake on lan crc hashes for the packet header | |
2885 | * we are interested in. | |
2886 | */ | |
c4067400 | 2887 | static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern) |
1da177e4 LT |
2888 | { |
2889 | u16 crc = 0xFFFF; | |
2890 | u8 mask; | |
2891 | int i, j; | |
2892 | ||
2893 | for (i = 0; i < size; i++) { | |
2894 | mask = mask_pattern[i]; | |
2895 | ||
2896 | /* Skip this loop if the mask equals to zero */ | |
2897 | if (mask == 0x00) | |
2898 | continue; | |
2899 | ||
2900 | for (j = 0; j < 8; j++) { | |
2901 | if ((mask & 0x01) == 0) { | |
2902 | mask >>= 1; | |
2903 | continue; | |
2904 | } | |
2905 | mask >>= 1; | |
2906 | crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1); | |
2907 | } | |
2908 | } | |
2909 | /* Finally, invert the result once to get the correct data */ | |
2910 | crc = ~crc; | |
906d66df | 2911 | return bitrev32(crc) >> 16; |
1da177e4 LT |
2912 | } |
2913 | ||
2914 | /** | |
2915 | * velocity_set_wol - set up for wake on lan | |
2916 | * @vptr: velocity to set WOL status on | |
2917 | * | |
2918 | * Set a card up for wake on lan either by unicast or by | |
2919 | * ARP packet. | |
2920 | * | |
2921 | * FIXME: check static buffer is safe here | |
2922 | */ | |
1da177e4 LT |
2923 | static int velocity_set_wol(struct velocity_info *vptr) |
2924 | { | |
c4067400 | 2925 | struct mac_regs __iomem *regs = vptr->mac_regs; |
1da177e4 LT |
2926 | static u8 buf[256]; |
2927 | int i; | |
2928 | ||
2929 | static u32 mask_pattern[2][4] = { | |
2930 | {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */ | |
2931 | {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */ | |
2932 | }; | |
2933 | ||
2934 | writew(0xFFFF, ®s->WOLCRClr); | |
2935 | writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet); | |
2936 | writew(WOLCR_MAGIC_EN, ®s->WOLCRSet); | |
2937 | ||
2938 | /* | |
2939 | if (vptr->wol_opts & VELOCITY_WOL_PHY) | |
2940 | writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet); | |
2941 | */ | |
2942 | ||
c4067400 | 2943 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) |
1da177e4 | 2944 | writew(WOLCR_UNICAST_EN, ®s->WOLCRSet); |
1da177e4 LT |
2945 | |
2946 | if (vptr->wol_opts & VELOCITY_WOL_ARP) { | |
2947 | struct arp_packet *arp = (struct arp_packet *) buf; | |
2948 | u16 crc; | |
2949 | memset(buf, 0, sizeof(struct arp_packet) + 7); | |
2950 | ||
2951 | for (i = 0; i < 4; i++) | |
2952 | writel(mask_pattern[0][i], ®s->ByteMask[0][i]); | |
2953 | ||
2954 | arp->type = htons(ETH_P_ARP); | |
2955 | arp->ar_op = htons(1); | |
2956 | ||
2957 | memcpy(arp->ar_tip, vptr->ip_addr, 4); | |
2958 | ||
2959 | crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, | |
2960 | (u8 *) & mask_pattern[0][0]); | |
2961 | ||
2962 | writew(crc, ®s->PatternCRC[0]); | |
2963 | writew(WOLCR_ARP_EN, ®s->WOLCRSet); | |
2964 | } | |
2965 | ||
2966 | BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet); | |
2967 | BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet); | |
2968 | ||
2969 | writew(0x0FFF, ®s->WOLSRClr); | |
2970 | ||
2971 | if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) { | |
2972 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) | |
3a7f8681 | 2973 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_NCONFIG, vptr->mac_regs); |
1da177e4 | 2974 | |
3a7f8681 | 2975 | MII_REG_BITS_OFF(ADVERTISE_1000FULL | ADVERTISE_1000HALF, MII_CTRL1000, vptr->mac_regs); |
1da177e4 LT |
2976 | } |
2977 | ||
2978 | if (vptr->mii_status & VELOCITY_SPEED_1000) | |
3a7f8681 | 2979 | MII_REG_BITS_ON(BMCR_ANRESTART, MII_BMCR, vptr->mac_regs); |
1da177e4 LT |
2980 | |
2981 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
2982 | ||
2983 | { | |
2984 | u8 GCR; | |
2985 | GCR = readb(®s->CHIPGCR); | |
2986 | GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX; | |
2987 | writeb(GCR, ®s->CHIPGCR); | |
2988 | } | |
2989 | ||
2990 | BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR); | |
2991 | /* Turn on SWPTAG just before entering power mode */ | |
2992 | BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW); | |
2993 | /* Go to bed ..... */ | |
2994 | BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); | |
2995 | ||
2996 | return 0; | |
2997 | } | |
2998 | ||
2cf71d2e DJ |
2999 | /** |
3000 | * velocity_save_context - save registers | |
3001 | * @vptr: velocity | |
3002 | * @context: buffer for stored context | |
3003 | * | |
3004 | * Retrieve the current configuration from the velocity hardware | |
3005 | * and stash it in the context structure, for use by the context | |
3006 | * restore functions. This allows us to save things we need across | |
3007 | * power down states | |
3008 | */ | |
3009 | static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context) | |
3010 | { | |
3011 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
3012 | u16 i; | |
3013 | u8 __iomem *ptr = (u8 __iomem *)regs; | |
3014 | ||
3015 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4) | |
3016 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
3017 | ||
3018 | for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4) | |
3019 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
3020 | ||
3021 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) | |
3022 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
3023 | ||
3024 | } | |
3025 | ||
1da177e4 LT |
3026 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state) |
3027 | { | |
3028 | struct net_device *dev = pci_get_drvdata(pdev); | |
3029 | struct velocity_info *vptr = netdev_priv(dev); | |
3030 | unsigned long flags; | |
3031 | ||
c4067400 | 3032 | if (!netif_running(vptr->dev)) |
1da177e4 LT |
3033 | return 0; |
3034 | ||
3035 | netif_device_detach(vptr->dev); | |
3036 | ||
3037 | spin_lock_irqsave(&vptr->lock, flags); | |
3038 | pci_save_state(pdev); | |
3039 | #ifdef ETHTOOL_GWOL | |
3040 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) { | |
3041 | velocity_get_ip(vptr); | |
3042 | velocity_save_context(vptr, &vptr->context); | |
3043 | velocity_shutdown(vptr); | |
3044 | velocity_set_wol(vptr); | |
4a51c0d0 | 3045 | pci_enable_wake(pdev, PCI_D3hot, 1); |
1da177e4 LT |
3046 | pci_set_power_state(pdev, PCI_D3hot); |
3047 | } else { | |
3048 | velocity_save_context(vptr, &vptr->context); | |
3049 | velocity_shutdown(vptr); | |
3050 | pci_disable_device(pdev); | |
3051 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
3052 | } | |
2cf71d2e DJ |
3053 | #else |
3054 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
3055 | #endif | |
3056 | spin_unlock_irqrestore(&vptr->lock, flags); | |
3057 | return 0; | |
3058 | } | |
3059 | ||
3060 | /** | |
3061 | * velocity_restore_context - restore registers | |
3062 | * @vptr: velocity | |
3063 | * @context: buffer for stored context | |
3064 | * | |
3065 | * Reload the register configuration from the velocity context | |
3066 | * created by velocity_save_context. | |
3067 | */ | |
3068 | static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context) | |
3069 | { | |
3070 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
3071 | int i; | |
3072 | u8 __iomem *ptr = (u8 __iomem *)regs; | |
3073 | ||
3074 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) | |
3075 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
3076 | ||
3077 | /* Just skip cr0 */ | |
3078 | for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) { | |
3079 | /* Clear */ | |
3080 | writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4); | |
3081 | /* Set */ | |
3082 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); | |
3083 | } | |
3084 | ||
3085 | for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) | |
3086 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
3087 | ||
3088 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) | |
3089 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
3090 | ||
3091 | for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) | |
3092 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); | |
1da177e4 LT |
3093 | } |
3094 | ||
3095 | static int velocity_resume(struct pci_dev *pdev) | |
3096 | { | |
3097 | struct net_device *dev = pci_get_drvdata(pdev); | |
3098 | struct velocity_info *vptr = netdev_priv(dev); | |
3099 | unsigned long flags; | |
3100 | int i; | |
3101 | ||
c4067400 | 3102 | if (!netif_running(vptr->dev)) |
1da177e4 LT |
3103 | return 0; |
3104 | ||
3105 | pci_set_power_state(pdev, PCI_D0); | |
3106 | pci_enable_wake(pdev, 0, 0); | |
3107 | pci_restore_state(pdev); | |
3108 | ||
3109 | mac_wol_reset(vptr->mac_regs); | |
3110 | ||
3111 | spin_lock_irqsave(&vptr->lock, flags); | |
3112 | velocity_restore_context(vptr, &vptr->context); | |
3113 | velocity_init_registers(vptr, VELOCITY_INIT_WOL); | |
3114 | mac_disable_int(vptr->mac_regs); | |
3115 | ||
d6cade0f | 3116 | velocity_tx_srv(vptr); |
1da177e4 | 3117 | |
0fe9f15e | 3118 | for (i = 0; i < vptr->tx.numq; i++) { |
c4067400 | 3119 | if (vptr->tx.used[i]) |
1da177e4 | 3120 | mac_tx_queue_wake(vptr->mac_regs, i); |
1da177e4 LT |
3121 | } |
3122 | ||
3123 | mac_enable_int(vptr->mac_regs); | |
3124 | spin_unlock_irqrestore(&vptr->lock, flags); | |
3125 | netif_device_attach(vptr->dev); | |
3126 | ||
3127 | return 0; | |
3128 | } | |
2cf71d2e | 3129 | #endif |
1da177e4 | 3130 | |
2cf71d2e DJ |
3131 | /* |
3132 | * Definition for our device driver. The PCI layer interface | |
3133 | * uses this to handle all our card discover and plugging | |
3134 | */ | |
3135 | static struct pci_driver velocity_driver = { | |
3136 | .name = VELOCITY_NAME, | |
3137 | .id_table = velocity_id_table, | |
3138 | .probe = velocity_found1, | |
3139 | .remove = __devexit_p(velocity_remove1), | |
3140 | #ifdef CONFIG_PM | |
3141 | .suspend = velocity_suspend, | |
3142 | .resume = velocity_resume, | |
3143 | #endif | |
3144 | }; | |
3145 | ||
3146 | ||
3147 | /** | |
3148 | * velocity_ethtool_up - pre hook for ethtool | |
3149 | * @dev: network device | |
3150 | * | |
3151 | * Called before an ethtool operation. We need to make sure the | |
3152 | * chip is out of D3 state before we poke at it. | |
3153 | */ | |
3154 | static int velocity_ethtool_up(struct net_device *dev) | |
3155 | { | |
3156 | struct velocity_info *vptr = netdev_priv(dev); | |
3157 | if (!netif_running(dev)) | |
3158 | pci_set_power_state(vptr->pdev, PCI_D0); | |
3159 | return 0; | |
3160 | } | |
3161 | ||
3162 | /** | |
3163 | * velocity_ethtool_down - post hook for ethtool | |
3164 | * @dev: network device | |
3165 | * | |
3166 | * Called after an ethtool operation. Restore the chip back to D3 | |
3167 | * state if it isn't running. | |
3168 | */ | |
3169 | static void velocity_ethtool_down(struct net_device *dev) | |
3170 | { | |
3171 | struct velocity_info *vptr = netdev_priv(dev); | |
3172 | if (!netif_running(dev)) | |
3173 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
3174 | } | |
3175 | ||
3176 | static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
3177 | { | |
3178 | struct velocity_info *vptr = netdev_priv(dev); | |
3179 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
3180 | u32 status; | |
3181 | status = check_connection_type(vptr->mac_regs); | |
3182 | ||
3183 | cmd->supported = SUPPORTED_TP | | |
3184 | SUPPORTED_Autoneg | | |
3185 | SUPPORTED_10baseT_Half | | |
3186 | SUPPORTED_10baseT_Full | | |
3187 | SUPPORTED_100baseT_Half | | |
3188 | SUPPORTED_100baseT_Full | | |
3189 | SUPPORTED_1000baseT_Half | | |
3190 | SUPPORTED_1000baseT_Full; | |
15419227 | 3191 | |
3192 | cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; | |
3193 | if (vptr->options.spd_dpx == SPD_DPX_AUTO) { | |
3194 | cmd->advertising |= | |
3195 | ADVERTISED_10baseT_Half | | |
3196 | ADVERTISED_10baseT_Full | | |
3197 | ADVERTISED_100baseT_Half | | |
3198 | ADVERTISED_100baseT_Full | | |
3199 | ADVERTISED_1000baseT_Half | | |
3200 | ADVERTISED_1000baseT_Full; | |
3201 | } else { | |
3202 | switch (vptr->options.spd_dpx) { | |
3203 | case SPD_DPX_1000_FULL: | |
3204 | cmd->advertising |= ADVERTISED_1000baseT_Full; | |
3205 | break; | |
3206 | case SPD_DPX_100_HALF: | |
3207 | cmd->advertising |= ADVERTISED_100baseT_Half; | |
3208 | break; | |
3209 | case SPD_DPX_100_FULL: | |
3210 | cmd->advertising |= ADVERTISED_100baseT_Full; | |
3211 | break; | |
3212 | case SPD_DPX_10_HALF: | |
3213 | cmd->advertising |= ADVERTISED_10baseT_Half; | |
3214 | break; | |
3215 | case SPD_DPX_10_FULL: | |
3216 | cmd->advertising |= ADVERTISED_10baseT_Full; | |
3217 | break; | |
3218 | default: | |
3219 | break; | |
3220 | } | |
3221 | } | |
2cf71d2e DJ |
3222 | if (status & VELOCITY_SPEED_1000) |
3223 | cmd->speed = SPEED_1000; | |
3224 | else if (status & VELOCITY_SPEED_100) | |
3225 | cmd->speed = SPEED_100; | |
3226 | else | |
3227 | cmd->speed = SPEED_10; | |
3228 | cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
3229 | cmd->port = PORT_TP; | |
3230 | cmd->transceiver = XCVR_INTERNAL; | |
3231 | cmd->phy_address = readb(®s->MIIADR) & 0x1F; | |
3232 | ||
3233 | if (status & VELOCITY_DUPLEX_FULL) | |
3234 | cmd->duplex = DUPLEX_FULL; | |
3235 | else | |
3236 | cmd->duplex = DUPLEX_HALF; | |
3237 | ||
3238 | return 0; | |
3239 | } | |
3240 | ||
3241 | static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
3242 | { | |
3243 | struct velocity_info *vptr = netdev_priv(dev); | |
3244 | u32 curr_status; | |
3245 | u32 new_status = 0; | |
3246 | int ret = 0; | |
3247 | ||
3248 | curr_status = check_connection_type(vptr->mac_regs); | |
3249 | curr_status &= (~VELOCITY_LINK_FAIL); | |
3250 | ||
3251 | new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0); | |
15419227 | 3252 | new_status |= ((cmd->speed == SPEED_1000) ? VELOCITY_SPEED_1000 : 0); |
2cf71d2e DJ |
3253 | new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0); |
3254 | new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0); | |
3255 | new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0); | |
3256 | ||
15419227 | 3257 | if ((new_status & VELOCITY_AUTONEG_ENABLE) && |
3258 | (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE))) { | |
2cf71d2e | 3259 | ret = -EINVAL; |
15419227 | 3260 | } else { |
3261 | enum speed_opt spd_dpx; | |
3262 | ||
3263 | if (new_status & VELOCITY_AUTONEG_ENABLE) | |
3264 | spd_dpx = SPD_DPX_AUTO; | |
3265 | else if ((new_status & VELOCITY_SPEED_1000) && | |
3266 | (new_status & VELOCITY_DUPLEX_FULL)) { | |
3267 | spd_dpx = SPD_DPX_1000_FULL; | |
3268 | } else if (new_status & VELOCITY_SPEED_100) | |
3269 | spd_dpx = (new_status & VELOCITY_DUPLEX_FULL) ? | |
3270 | SPD_DPX_100_FULL : SPD_DPX_100_HALF; | |
3271 | else if (new_status & VELOCITY_SPEED_10) | |
3272 | spd_dpx = (new_status & VELOCITY_DUPLEX_FULL) ? | |
3273 | SPD_DPX_10_FULL : SPD_DPX_10_HALF; | |
3274 | else | |
3275 | return -EOPNOTSUPP; | |
3276 | ||
3277 | vptr->options.spd_dpx = spd_dpx; | |
3278 | ||
2cf71d2e | 3279 | velocity_set_media_mode(vptr, new_status); |
15419227 | 3280 | } |
2cf71d2e DJ |
3281 | |
3282 | return ret; | |
3283 | } | |
3284 | ||
3285 | static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
3286 | { | |
3287 | struct velocity_info *vptr = netdev_priv(dev); | |
3288 | strcpy(info->driver, VELOCITY_NAME); | |
3289 | strcpy(info->version, VELOCITY_VERSION); | |
3290 | strcpy(info->bus_info, pci_name(vptr->pdev)); | |
3291 | } | |
3292 | ||
3293 | static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
3294 | { | |
3295 | struct velocity_info *vptr = netdev_priv(dev); | |
3296 | wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP; | |
3297 | wol->wolopts |= WAKE_MAGIC; | |
3298 | /* | |
3299 | if (vptr->wol_opts & VELOCITY_WOL_PHY) | |
3300 | wol.wolopts|=WAKE_PHY; | |
3301 | */ | |
3302 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) | |
3303 | wol->wolopts |= WAKE_UCAST; | |
3304 | if (vptr->wol_opts & VELOCITY_WOL_ARP) | |
3305 | wol->wolopts |= WAKE_ARP; | |
3306 | memcpy(&wol->sopass, vptr->wol_passwd, 6); | |
3307 | } | |
3308 | ||
3309 | static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
3310 | { | |
3311 | struct velocity_info *vptr = netdev_priv(dev); | |
3312 | ||
3313 | if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP))) | |
3314 | return -EFAULT; | |
3315 | vptr->wol_opts = VELOCITY_WOL_MAGIC; | |
3316 | ||
3317 | /* | |
3318 | if (wol.wolopts & WAKE_PHY) { | |
3319 | vptr->wol_opts|=VELOCITY_WOL_PHY; | |
3320 | vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED; | |
3321 | } | |
3322 | */ | |
3323 | ||
3324 | if (wol->wolopts & WAKE_MAGIC) { | |
3325 | vptr->wol_opts |= VELOCITY_WOL_MAGIC; | |
3326 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3327 | } | |
3328 | if (wol->wolopts & WAKE_UCAST) { | |
3329 | vptr->wol_opts |= VELOCITY_WOL_UCAST; | |
3330 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3331 | } | |
3332 | if (wol->wolopts & WAKE_ARP) { | |
3333 | vptr->wol_opts |= VELOCITY_WOL_ARP; | |
3334 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3335 | } | |
3336 | memcpy(vptr->wol_passwd, wol->sopass, 6); | |
3337 | return 0; | |
3338 | } | |
3339 | ||
3340 | static u32 velocity_get_msglevel(struct net_device *dev) | |
3341 | { | |
3342 | return msglevel; | |
3343 | } | |
3344 | ||
3345 | static void velocity_set_msglevel(struct net_device *dev, u32 value) | |
3346 | { | |
3347 | msglevel = value; | |
3348 | } | |
3349 | ||
6dfc4b95 SK |
3350 | static int get_pending_timer_val(int val) |
3351 | { | |
3352 | int mult_bits = val >> 6; | |
3353 | int mult = 1; | |
3354 | ||
3355 | switch (mult_bits) | |
3356 | { | |
3357 | case 1: | |
3358 | mult = 4; break; | |
3359 | case 2: | |
3360 | mult = 16; break; | |
3361 | case 3: | |
3362 | mult = 64; break; | |
3363 | case 0: | |
3364 | default: | |
3365 | break; | |
3366 | } | |
3367 | ||
3368 | return (val & 0x3f) * mult; | |
3369 | } | |
3370 | ||
3371 | static void set_pending_timer_val(int *val, u32 us) | |
3372 | { | |
3373 | u8 mult = 0; | |
3374 | u8 shift = 0; | |
3375 | ||
3376 | if (us >= 0x3f) { | |
3377 | mult = 1; /* mult with 4 */ | |
3378 | shift = 2; | |
3379 | } | |
3380 | if (us >= 0x3f * 4) { | |
3381 | mult = 2; /* mult with 16 */ | |
3382 | shift = 4; | |
3383 | } | |
3384 | if (us >= 0x3f * 16) { | |
3385 | mult = 3; /* mult with 64 */ | |
3386 | shift = 6; | |
3387 | } | |
3388 | ||
3389 | *val = (mult << 6) | ((us >> shift) & 0x3f); | |
3390 | } | |
3391 | ||
3392 | ||
3393 | static int velocity_get_coalesce(struct net_device *dev, | |
3394 | struct ethtool_coalesce *ecmd) | |
3395 | { | |
3396 | struct velocity_info *vptr = netdev_priv(dev); | |
3397 | ||
3398 | ecmd->tx_max_coalesced_frames = vptr->options.tx_intsup; | |
3399 | ecmd->rx_max_coalesced_frames = vptr->options.rx_intsup; | |
3400 | ||
3401 | ecmd->rx_coalesce_usecs = get_pending_timer_val(vptr->options.rxqueue_timer); | |
3402 | ecmd->tx_coalesce_usecs = get_pending_timer_val(vptr->options.txqueue_timer); | |
3403 | ||
3404 | return 0; | |
3405 | } | |
3406 | ||
3407 | static int velocity_set_coalesce(struct net_device *dev, | |
3408 | struct ethtool_coalesce *ecmd) | |
3409 | { | |
3410 | struct velocity_info *vptr = netdev_priv(dev); | |
3411 | int max_us = 0x3f * 64; | |
39c2ff43 | 3412 | unsigned long flags; |
6dfc4b95 SK |
3413 | |
3414 | /* 6 bits of */ | |
3415 | if (ecmd->tx_coalesce_usecs > max_us) | |
3416 | return -EINVAL; | |
3417 | if (ecmd->rx_coalesce_usecs > max_us) | |
3418 | return -EINVAL; | |
3419 | ||
3420 | if (ecmd->tx_max_coalesced_frames > 0xff) | |
3421 | return -EINVAL; | |
3422 | if (ecmd->rx_max_coalesced_frames > 0xff) | |
3423 | return -EINVAL; | |
3424 | ||
3425 | vptr->options.rx_intsup = ecmd->rx_max_coalesced_frames; | |
3426 | vptr->options.tx_intsup = ecmd->tx_max_coalesced_frames; | |
3427 | ||
3428 | set_pending_timer_val(&vptr->options.rxqueue_timer, | |
3429 | ecmd->rx_coalesce_usecs); | |
3430 | set_pending_timer_val(&vptr->options.txqueue_timer, | |
3431 | ecmd->tx_coalesce_usecs); | |
3432 | ||
3433 | /* Setup the interrupt suppression and queue timers */ | |
39c2ff43 | 3434 | spin_lock_irqsave(&vptr->lock, flags); |
6dfc4b95 SK |
3435 | mac_disable_int(vptr->mac_regs); |
3436 | setup_adaptive_interrupts(vptr); | |
3437 | setup_queue_timers(vptr); | |
3438 | ||
3439 | mac_write_int_mask(vptr->int_mask, vptr->mac_regs); | |
3440 | mac_clear_isr(vptr->mac_regs); | |
3441 | mac_enable_int(vptr->mac_regs); | |
39c2ff43 | 3442 | spin_unlock_irqrestore(&vptr->lock, flags); |
6dfc4b95 SK |
3443 | |
3444 | return 0; | |
3445 | } | |
3446 | ||
2cf71d2e DJ |
3447 | static const struct ethtool_ops velocity_ethtool_ops = { |
3448 | .get_settings = velocity_get_settings, | |
3449 | .set_settings = velocity_set_settings, | |
3450 | .get_drvinfo = velocity_get_drvinfo, | |
b06f78f4 SK |
3451 | .set_tx_csum = ethtool_op_set_tx_csum, |
3452 | .get_tx_csum = ethtool_op_get_tx_csum, | |
2cf71d2e DJ |
3453 | .get_wol = velocity_ethtool_get_wol, |
3454 | .set_wol = velocity_ethtool_set_wol, | |
3455 | .get_msglevel = velocity_get_msglevel, | |
3456 | .set_msglevel = velocity_set_msglevel, | |
c79992fd | 3457 | .set_sg = ethtool_op_set_sg, |
2cf71d2e | 3458 | .get_link = velocity_get_link, |
6dfc4b95 SK |
3459 | .get_coalesce = velocity_get_coalesce, |
3460 | .set_coalesce = velocity_set_coalesce, | |
2cf71d2e DJ |
3461 | .begin = velocity_ethtool_up, |
3462 | .complete = velocity_ethtool_down | |
3463 | }; | |
ce9f7fe3 | 3464 | |
2cf71d2e DJ |
3465 | #ifdef CONFIG_PM |
3466 | #ifdef CONFIG_INET | |
1da177e4 LT |
3467 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr) |
3468 | { | |
3469 | struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; | |
a337499f | 3470 | struct net_device *dev = ifa->ifa_dev->dev; |
1da177e4 | 3471 | |
516b4df1 BH |
3472 | if (dev_net(dev) == &init_net && |
3473 | dev->netdev_ops == &velocity_netdev_ops) | |
3474 | velocity_get_ip(netdev_priv(dev)); | |
a337499f | 3475 | |
1da177e4 LT |
3476 | return NOTIFY_DONE; |
3477 | } | |
2cf71d2e DJ |
3478 | #endif /* CONFIG_INET */ |
3479 | #endif /* CONFIG_PM */ | |
ce9f7fe3 | 3480 | |
2cf71d2e DJ |
3481 | #if defined(CONFIG_PM) && defined(CONFIG_INET) |
3482 | static struct notifier_block velocity_inetaddr_notifier = { | |
3483 | .notifier_call = velocity_netdev_event, | |
3484 | }; | |
3485 | ||
3486 | static void velocity_register_notifier(void) | |
3487 | { | |
3488 | register_inetaddr_notifier(&velocity_inetaddr_notifier); | |
3489 | } | |
3490 | ||
3491 | static void velocity_unregister_notifier(void) | |
3492 | { | |
3493 | unregister_inetaddr_notifier(&velocity_inetaddr_notifier); | |
3494 | } | |
3495 | ||
3496 | #else | |
3497 | ||
3498 | #define velocity_register_notifier() do {} while (0) | |
3499 | #define velocity_unregister_notifier() do {} while (0) | |
3500 | ||
3501 | #endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */ | |
3502 | ||
3503 | /** | |
3504 | * velocity_init_module - load time function | |
3505 | * | |
3506 | * Called when the velocity module is loaded. The PCI driver | |
3507 | * is registered with the PCI layer, and in turn will call | |
3508 | * the probe functions for each velocity adapter installed | |
3509 | * in the system. | |
3510 | */ | |
3511 | static int __init velocity_init_module(void) | |
3512 | { | |
3513 | int ret; | |
3514 | ||
3515 | velocity_register_notifier(); | |
3516 | ret = pci_register_driver(&velocity_driver); | |
3517 | if (ret < 0) | |
3518 | velocity_unregister_notifier(); | |
3519 | return ret; | |
3520 | } | |
3521 | ||
3522 | /** | |
3523 | * velocity_cleanup - module unload | |
3524 | * | |
3525 | * When the velocity hardware is unloaded this function is called. | |
3526 | * It will clean up the notifiers and the unregister the PCI | |
3527 | * driver interface for this hardware. This in turn cleans up | |
3528 | * all discovered interfaces before returning from the function | |
3529 | */ | |
3530 | static void __exit velocity_cleanup_module(void) | |
3531 | { | |
3532 | velocity_unregister_notifier(); | |
3533 | pci_unregister_driver(&velocity_driver); | |
3534 | } | |
3535 | ||
3536 | module_init(velocity_init_module); | |
3537 | module_exit(velocity_cleanup_module); |