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 | |
11 | * Big-endian support | |
12 | * rx_copybreak/alignment | |
13 | * Scatter gather | |
14 | * More testing | |
15 | * | |
16 | * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com> | |
17 | * Additional fixes and clean up: Francois Romieu | |
18 | * | |
19 | * This source has not been verified for use in safety critical systems. | |
20 | * | |
21 | * Please direct queries about the revamped driver to the linux-kernel | |
22 | * list not VIA. | |
23 | * | |
24 | * Original code: | |
25 | * | |
26 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. | |
27 | * All rights reserved. | |
28 | * | |
29 | * This software may be redistributed and/or modified under | |
30 | * the terms of the GNU General Public License as published by the Free | |
31 | * Software Foundation; either version 2 of the License, or | |
32 | * any later version. | |
33 | * | |
34 | * This program is distributed in the hope that it will be useful, but | |
35 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
36 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
37 | * for more details. | |
38 | * | |
39 | * Author: Chuang Liang-Shing, AJ Jiang | |
40 | * | |
41 | * Date: Jan 24, 2003 | |
42 | * | |
43 | * MODULE_LICENSE("GPL"); | |
44 | * | |
45 | */ | |
46 | ||
47 | ||
48 | #include <linux/module.h> | |
49 | #include <linux/types.h> | |
1da177e4 LT |
50 | #include <linux/init.h> |
51 | #include <linux/mm.h> | |
52 | #include <linux/errno.h> | |
53 | #include <linux/ioport.h> | |
54 | #include <linux/pci.h> | |
55 | #include <linux/kernel.h> | |
56 | #include <linux/netdevice.h> | |
57 | #include <linux/etherdevice.h> | |
58 | #include <linux/skbuff.h> | |
59 | #include <linux/delay.h> | |
60 | #include <linux/timer.h> | |
61 | #include <linux/slab.h> | |
62 | #include <linux/interrupt.h> | |
1da177e4 LT |
63 | #include <linux/string.h> |
64 | #include <linux/wait.h> | |
65 | #include <asm/io.h> | |
66 | #include <linux/if.h> | |
1da177e4 LT |
67 | #include <asm/uaccess.h> |
68 | #include <linux/proc_fs.h> | |
69 | #include <linux/inetdevice.h> | |
70 | #include <linux/reboot.h> | |
71 | #include <linux/ethtool.h> | |
72 | #include <linux/mii.h> | |
73 | #include <linux/in.h> | |
74 | #include <linux/if_arp.h> | |
501e4d24 | 75 | #include <linux/if_vlan.h> |
1da177e4 LT |
76 | #include <linux/ip.h> |
77 | #include <linux/tcp.h> | |
78 | #include <linux/udp.h> | |
79 | #include <linux/crc-ccitt.h> | |
80 | #include <linux/crc32.h> | |
81 | ||
82 | #include "via-velocity.h" | |
83 | ||
84 | ||
85 | static int velocity_nics = 0; | |
86 | static int msglevel = MSG_LEVEL_INFO; | |
87 | ||
01faccbf SH |
88 | /** |
89 | * mac_get_cam_mask - Read a CAM mask | |
90 | * @regs: register block for this velocity | |
91 | * @mask: buffer to store mask | |
92 | * | |
93 | * Fetch the mask bits of the selected CAM and store them into the | |
94 | * provided mask buffer. | |
95 | */ | |
96 | ||
97 | static void mac_get_cam_mask(struct mac_regs __iomem * regs, u8 * mask) | |
98 | { | |
99 | int i; | |
100 | ||
101 | /* Select CAM mask */ | |
102 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
103 | ||
104 | writeb(0, ®s->CAMADDR); | |
105 | ||
106 | /* read mask */ | |
107 | for (i = 0; i < 8; i++) | |
108 | *mask++ = readb(&(regs->MARCAM[i])); | |
109 | ||
110 | /* disable CAMEN */ | |
111 | writeb(0, ®s->CAMADDR); | |
112 | ||
113 | /* Select mar */ | |
114 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
115 | ||
116 | } | |
117 | ||
118 | ||
119 | /** | |
120 | * mac_set_cam_mask - Set a CAM mask | |
121 | * @regs: register block for this velocity | |
122 | * @mask: CAM mask to load | |
123 | * | |
124 | * Store a new mask into a CAM | |
125 | */ | |
126 | ||
127 | static void mac_set_cam_mask(struct mac_regs __iomem * regs, u8 * mask) | |
128 | { | |
129 | int i; | |
130 | /* Select CAM mask */ | |
131 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
132 | ||
133 | writeb(CAMADDR_CAMEN, ®s->CAMADDR); | |
134 | ||
135 | for (i = 0; i < 8; i++) { | |
136 | writeb(*mask++, &(regs->MARCAM[i])); | |
137 | } | |
138 | /* disable CAMEN */ | |
139 | writeb(0, ®s->CAMADDR); | |
140 | ||
141 | /* Select mar */ | |
142 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
143 | } | |
144 | ||
145 | static void mac_set_vlan_cam_mask(struct mac_regs __iomem * regs, u8 * mask) | |
146 | { | |
147 | int i; | |
148 | /* Select CAM mask */ | |
149 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
150 | ||
151 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR); | |
152 | ||
153 | for (i = 0; i < 8; i++) { | |
154 | writeb(*mask++, &(regs->MARCAM[i])); | |
155 | } | |
156 | /* disable CAMEN */ | |
157 | writeb(0, ®s->CAMADDR); | |
158 | ||
159 | /* Select mar */ | |
160 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
161 | } | |
162 | ||
163 | /** | |
164 | * mac_set_cam - set CAM data | |
165 | * @regs: register block of this velocity | |
166 | * @idx: Cam index | |
167 | * @addr: 2 or 6 bytes of CAM data | |
168 | * | |
169 | * Load an address or vlan tag into a CAM | |
170 | */ | |
171 | ||
172 | static void mac_set_cam(struct mac_regs __iomem * regs, int idx, const u8 *addr) | |
173 | { | |
174 | int i; | |
175 | ||
176 | /* Select CAM mask */ | |
177 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
178 | ||
179 | idx &= (64 - 1); | |
180 | ||
181 | writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR); | |
182 | ||
183 | for (i = 0; i < 6; i++) { | |
184 | writeb(*addr++, &(regs->MARCAM[i])); | |
185 | } | |
186 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); | |
187 | ||
188 | udelay(10); | |
189 | ||
190 | writeb(0, ®s->CAMADDR); | |
191 | ||
192 | /* Select mar */ | |
193 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
194 | } | |
195 | ||
196 | static void mac_set_vlan_cam(struct mac_regs __iomem * regs, int idx, | |
197 | const u8 *addr) | |
198 | { | |
199 | ||
200 | /* Select CAM mask */ | |
201 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
202 | ||
203 | idx &= (64 - 1); | |
204 | ||
205 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR); | |
206 | writew(*((u16 *) addr), ®s->MARCAM[0]); | |
207 | ||
208 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); | |
209 | ||
210 | udelay(10); | |
211 | ||
212 | writeb(0, ®s->CAMADDR); | |
213 | ||
214 | /* Select mar */ | |
215 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); | |
216 | } | |
217 | ||
218 | ||
219 | /** | |
220 | * mac_wol_reset - reset WOL after exiting low power | |
221 | * @regs: register block of this velocity | |
222 | * | |
223 | * Called after we drop out of wake on lan mode in order to | |
224 | * reset the Wake on lan features. This function doesn't restore | |
225 | * the rest of the logic from the result of sleep/wakeup | |
226 | */ | |
227 | ||
228 | static void mac_wol_reset(struct mac_regs __iomem * regs) | |
229 | { | |
230 | ||
231 | /* Turn off SWPTAG right after leaving power mode */ | |
232 | BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW); | |
233 | /* clear sticky bits */ | |
234 | BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); | |
235 | ||
236 | BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR); | |
237 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
238 | /* disable force PME-enable */ | |
239 | writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr); | |
240 | /* disable power-event config bit */ | |
241 | writew(0xFFFF, ®s->WOLCRClr); | |
242 | /* clear power status */ | |
243 | writew(0xFFFF, ®s->WOLSRClr); | |
244 | } | |
1da177e4 LT |
245 | |
246 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); | |
7282d491 | 247 | static const struct ethtool_ops velocity_ethtool_ops; |
1da177e4 LT |
248 | |
249 | /* | |
250 | Define module options | |
251 | */ | |
252 | ||
253 | MODULE_AUTHOR("VIA Networking Technologies, Inc."); | |
254 | MODULE_LICENSE("GPL"); | |
255 | MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"); | |
256 | ||
257 | #define VELOCITY_PARAM(N,D) \ | |
258 | static int N[MAX_UNITS]=OPTION_DEFAULT;\ | |
259 | module_param_array(N, int, NULL, 0); \ | |
260 | MODULE_PARM_DESC(N, D); | |
261 | ||
262 | #define RX_DESC_MIN 64 | |
263 | #define RX_DESC_MAX 255 | |
264 | #define RX_DESC_DEF 64 | |
265 | VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors"); | |
266 | ||
267 | #define TX_DESC_MIN 16 | |
268 | #define TX_DESC_MAX 256 | |
269 | #define TX_DESC_DEF 64 | |
270 | VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors"); | |
271 | ||
1da177e4 LT |
272 | #define RX_THRESH_MIN 0 |
273 | #define RX_THRESH_MAX 3 | |
274 | #define RX_THRESH_DEF 0 | |
275 | /* rx_thresh[] is used for controlling the receive fifo threshold. | |
276 | 0: indicate the rxfifo threshold is 128 bytes. | |
277 | 1: indicate the rxfifo threshold is 512 bytes. | |
278 | 2: indicate the rxfifo threshold is 1024 bytes. | |
279 | 3: indicate the rxfifo threshold is store & forward. | |
280 | */ | |
281 | VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); | |
282 | ||
283 | #define DMA_LENGTH_MIN 0 | |
284 | #define DMA_LENGTH_MAX 7 | |
285 | #define DMA_LENGTH_DEF 0 | |
286 | ||
287 | /* DMA_length[] is used for controlling the DMA length | |
288 | 0: 8 DWORDs | |
289 | 1: 16 DWORDs | |
290 | 2: 32 DWORDs | |
291 | 3: 64 DWORDs | |
292 | 4: 128 DWORDs | |
293 | 5: 256 DWORDs | |
294 | 6: SF(flush till emply) | |
295 | 7: SF(flush till emply) | |
296 | */ | |
297 | VELOCITY_PARAM(DMA_length, "DMA length"); | |
298 | ||
1da177e4 LT |
299 | #define IP_ALIG_DEF 0 |
300 | /* IP_byte_align[] is used for IP header DWORD byte aligned | |
301 | 0: indicate the IP header won't be DWORD byte aligned.(Default) . | |
302 | 1: indicate the IP header will be DWORD byte aligned. | |
303 | In some enviroment, the IP header should be DWORD byte aligned, | |
304 | or the packet will be droped when we receive it. (eg: IPVS) | |
305 | */ | |
306 | VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); | |
307 | ||
308 | #define TX_CSUM_DEF 1 | |
309 | /* txcsum_offload[] is used for setting the checksum offload ability of NIC. | |
310 | (We only support RX checksum offload now) | |
311 | 0: disable csum_offload[checksum offload | |
312 | 1: enable checksum offload. (Default) | |
313 | */ | |
314 | VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload"); | |
315 | ||
316 | #define FLOW_CNTL_DEF 1 | |
317 | #define FLOW_CNTL_MIN 1 | |
318 | #define FLOW_CNTL_MAX 5 | |
319 | ||
320 | /* flow_control[] is used for setting the flow control ability of NIC. | |
321 | 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR. | |
322 | 2: enable TX flow control. | |
323 | 3: enable RX flow control. | |
324 | 4: enable RX/TX flow control. | |
325 | 5: disable | |
326 | */ | |
327 | VELOCITY_PARAM(flow_control, "Enable flow control ability"); | |
328 | ||
329 | #define MED_LNK_DEF 0 | |
330 | #define MED_LNK_MIN 0 | |
331 | #define MED_LNK_MAX 4 | |
332 | /* speed_duplex[] is used for setting the speed and duplex mode of NIC. | |
333 | 0: indicate autonegotiation for both speed and duplex mode | |
334 | 1: indicate 100Mbps half duplex mode | |
335 | 2: indicate 100Mbps full duplex mode | |
336 | 3: indicate 10Mbps half duplex mode | |
337 | 4: indicate 10Mbps full duplex mode | |
338 | ||
339 | Note: | |
340 | if EEPROM have been set to the force mode, this option is ignored | |
341 | by driver. | |
342 | */ | |
343 | VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode"); | |
344 | ||
345 | #define VAL_PKT_LEN_DEF 0 | |
346 | /* ValPktLen[] is used for setting the checksum offload ability of NIC. | |
347 | 0: Receive frame with invalid layer 2 length (Default) | |
348 | 1: Drop frame with invalid layer 2 length | |
349 | */ | |
350 | VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); | |
351 | ||
352 | #define WOL_OPT_DEF 0 | |
353 | #define WOL_OPT_MIN 0 | |
354 | #define WOL_OPT_MAX 7 | |
355 | /* wol_opts[] is used for controlling wake on lan behavior. | |
356 | 0: Wake up if recevied a magic packet. (Default) | |
357 | 1: Wake up if link status is on/off. | |
358 | 2: Wake up if recevied an arp packet. | |
359 | 4: Wake up if recevied any unicast packet. | |
360 | Those value can be sumed up to support more than one option. | |
361 | */ | |
362 | VELOCITY_PARAM(wol_opts, "Wake On Lan options"); | |
363 | ||
364 | #define INT_WORKS_DEF 20 | |
365 | #define INT_WORKS_MIN 10 | |
366 | #define INT_WORKS_MAX 64 | |
367 | ||
368 | VELOCITY_PARAM(int_works, "Number of packets per interrupt services"); | |
369 | ||
370 | static int rx_copybreak = 200; | |
371 | module_param(rx_copybreak, int, 0644); | |
372 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); | |
373 | ||
cabb7667 JG |
374 | static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, |
375 | const struct velocity_info_tbl *info); | |
1da177e4 LT |
376 | static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev); |
377 | static void velocity_print_info(struct velocity_info *vptr); | |
378 | static int velocity_open(struct net_device *dev); | |
379 | static int velocity_change_mtu(struct net_device *dev, int mtu); | |
380 | static int velocity_xmit(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 381 | static int velocity_intr(int irq, void *dev_instance); |
1da177e4 LT |
382 | static void velocity_set_multi(struct net_device *dev); |
383 | static struct net_device_stats *velocity_get_stats(struct net_device *dev); | |
384 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
385 | static int velocity_close(struct net_device *dev); | |
386 | static int velocity_receive_frame(struct velocity_info *, int idx); | |
387 | static int velocity_alloc_rx_buf(struct velocity_info *, int idx); | |
388 | static void velocity_free_rd_ring(struct velocity_info *vptr); | |
389 | static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *); | |
390 | static int velocity_soft_reset(struct velocity_info *vptr); | |
391 | static void mii_init(struct velocity_info *vptr, u32 mii_status); | |
8a22dddb | 392 | static u32 velocity_get_link(struct net_device *dev); |
1da177e4 LT |
393 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr); |
394 | static void velocity_print_link_status(struct velocity_info *vptr); | |
395 | static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs); | |
396 | static void velocity_shutdown(struct velocity_info *vptr); | |
397 | static void enable_flow_control_ability(struct velocity_info *vptr); | |
398 | static void enable_mii_autopoll(struct mac_regs __iomem * regs); | |
399 | static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata); | |
400 | static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data); | |
401 | static u32 mii_check_media_mode(struct mac_regs __iomem * regs); | |
402 | static u32 check_connection_type(struct mac_regs __iomem * regs); | |
403 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status); | |
404 | ||
405 | #ifdef CONFIG_PM | |
406 | ||
407 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state); | |
408 | static int velocity_resume(struct pci_dev *pdev); | |
409 | ||
ce9f7fe3 RD |
410 | static DEFINE_SPINLOCK(velocity_dev_list_lock); |
411 | static LIST_HEAD(velocity_dev_list); | |
412 | ||
413 | #endif | |
414 | ||
415 | #if defined(CONFIG_PM) && defined(CONFIG_INET) | |
416 | ||
1da177e4 LT |
417 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr); |
418 | ||
419 | static struct notifier_block velocity_inetaddr_notifier = { | |
420 | .notifier_call = velocity_netdev_event, | |
421 | }; | |
422 | ||
1da177e4 LT |
423 | static void velocity_register_notifier(void) |
424 | { | |
425 | register_inetaddr_notifier(&velocity_inetaddr_notifier); | |
426 | } | |
427 | ||
428 | static void velocity_unregister_notifier(void) | |
429 | { | |
430 | unregister_inetaddr_notifier(&velocity_inetaddr_notifier); | |
431 | } | |
432 | ||
ce9f7fe3 | 433 | #else |
1da177e4 LT |
434 | |
435 | #define velocity_register_notifier() do {} while (0) | |
436 | #define velocity_unregister_notifier() do {} while (0) | |
437 | ||
ce9f7fe3 | 438 | #endif |
1da177e4 LT |
439 | |
440 | /* | |
441 | * Internal board variants. At the moment we have only one | |
442 | */ | |
443 | ||
cabb7667 JG |
444 | static const struct velocity_info_tbl chip_info_table[] __devinitdata = { |
445 | {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL}, | |
446 | { } | |
1da177e4 LT |
447 | }; |
448 | ||
449 | /* | |
450 | * Describe the PCI device identifiers that we support in this | |
451 | * device driver. Used for hotplug autoloading. | |
452 | */ | |
453 | ||
e54f4893 JG |
454 | static const struct pci_device_id velocity_id_table[] __devinitdata = { |
455 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) }, | |
456 | { } | |
1da177e4 LT |
457 | }; |
458 | ||
459 | MODULE_DEVICE_TABLE(pci, velocity_id_table); | |
460 | ||
461 | /** | |
462 | * get_chip_name - identifier to name | |
463 | * @id: chip identifier | |
464 | * | |
465 | * Given a chip identifier return a suitable description. Returns | |
466 | * a pointer a static string valid while the driver is loaded. | |
467 | */ | |
468 | ||
01faccbf | 469 | static const char __devinit *get_chip_name(enum chip_type chip_id) |
1da177e4 LT |
470 | { |
471 | int i; | |
472 | for (i = 0; chip_info_table[i].name != NULL; i++) | |
473 | if (chip_info_table[i].chip_id == chip_id) | |
474 | break; | |
475 | return chip_info_table[i].name; | |
476 | } | |
477 | ||
478 | /** | |
479 | * velocity_remove1 - device unplug | |
480 | * @pdev: PCI device being removed | |
481 | * | |
482 | * Device unload callback. Called on an unplug or on module | |
483 | * unload for each active device that is present. Disconnects | |
484 | * the device from the network layer and frees all the resources | |
485 | */ | |
486 | ||
487 | static void __devexit velocity_remove1(struct pci_dev *pdev) | |
488 | { | |
489 | struct net_device *dev = pci_get_drvdata(pdev); | |
8ab6f3f7 | 490 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
491 | |
492 | #ifdef CONFIG_PM | |
493 | unsigned long flags; | |
494 | ||
495 | spin_lock_irqsave(&velocity_dev_list_lock, flags); | |
496 | if (!list_empty(&velocity_dev_list)) | |
497 | list_del(&vptr->list); | |
498 | spin_unlock_irqrestore(&velocity_dev_list_lock, flags); | |
499 | #endif | |
500 | unregister_netdev(dev); | |
501 | iounmap(vptr->mac_regs); | |
502 | pci_release_regions(pdev); | |
503 | pci_disable_device(pdev); | |
504 | pci_set_drvdata(pdev, NULL); | |
505 | free_netdev(dev); | |
506 | ||
507 | velocity_nics--; | |
508 | } | |
509 | ||
510 | /** | |
511 | * velocity_set_int_opt - parser for integer options | |
512 | * @opt: pointer to option value | |
513 | * @val: value the user requested (or -1 for default) | |
514 | * @min: lowest value allowed | |
515 | * @max: highest value allowed | |
516 | * @def: default value | |
517 | * @name: property name | |
518 | * @dev: device name | |
519 | * | |
520 | * Set an integer property in the module options. This function does | |
521 | * all the verification and checking as well as reporting so that | |
522 | * we don't duplicate code for each option. | |
523 | */ | |
524 | ||
525 | static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname) | |
526 | { | |
527 | if (val == -1) | |
528 | *opt = def; | |
529 | else if (val < min || val > max) { | |
530 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n", | |
531 | devname, name, min, max); | |
532 | *opt = def; | |
533 | } else { | |
534 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n", | |
535 | devname, name, val); | |
536 | *opt = val; | |
537 | } | |
538 | } | |
539 | ||
540 | /** | |
541 | * velocity_set_bool_opt - parser for boolean options | |
542 | * @opt: pointer to option value | |
543 | * @val: value the user requested (or -1 for default) | |
544 | * @def: default value (yes/no) | |
545 | * @flag: numeric value to set for true. | |
546 | * @name: property name | |
547 | * @dev: device name | |
548 | * | |
549 | * Set a boolean property in the module options. This function does | |
550 | * all the verification and checking as well as reporting so that | |
551 | * we don't duplicate code for each option. | |
552 | */ | |
553 | ||
554 | static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname) | |
555 | { | |
556 | (*opt) &= (~flag); | |
557 | if (val == -1) | |
558 | *opt |= (def ? flag : 0); | |
559 | else if (val < 0 || val > 1) { | |
6aa20a22 | 560 | printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n", |
1da177e4 LT |
561 | devname, name); |
562 | *opt |= (def ? flag : 0); | |
563 | } else { | |
6aa20a22 | 564 | printk(KERN_INFO "%s: set parameter %s to %s\n", |
1da177e4 LT |
565 | devname, name, val ? "TRUE" : "FALSE"); |
566 | *opt |= (val ? flag : 0); | |
567 | } | |
568 | } | |
569 | ||
570 | /** | |
571 | * velocity_get_options - set options on device | |
572 | * @opts: option structure for the device | |
573 | * @index: index of option to use in module options array | |
574 | * @devname: device name | |
575 | * | |
576 | * Turn the module and command options into a single structure | |
577 | * for the current device | |
578 | */ | |
579 | ||
580 | static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname) | |
581 | { | |
582 | ||
583 | velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname); | |
584 | velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname); | |
585 | velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname); | |
586 | velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname); | |
501e4d24 | 587 | |
1da177e4 LT |
588 | velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname); |
589 | velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname); | |
590 | velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname); | |
591 | velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname); | |
592 | velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname); | |
593 | 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); | |
594 | velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname); | |
595 | opts->numrx = (opts->numrx & ~3); | |
596 | } | |
597 | ||
598 | /** | |
599 | * velocity_init_cam_filter - initialise CAM | |
600 | * @vptr: velocity to program | |
601 | * | |
602 | * Initialize the content addressable memory used for filters. Load | |
603 | * appropriately according to the presence of VLAN | |
604 | */ | |
605 | ||
606 | static void velocity_init_cam_filter(struct velocity_info *vptr) | |
607 | { | |
608 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
501e4d24 | 609 | unsigned short vid; |
1da177e4 LT |
610 | |
611 | /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */ | |
612 | WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG); | |
613 | WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG); | |
614 | ||
615 | /* Disable all CAMs */ | |
616 | memset(vptr->vCAMmask, 0, sizeof(u8) * 8); | |
617 | memset(vptr->mCAMmask, 0, sizeof(u8) * 8); | |
01faccbf SH |
618 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
619 | mac_set_cam_mask(regs, vptr->mCAMmask); | |
1da177e4 LT |
620 | |
621 | /* Enable first VCAM */ | |
501e4d24 SH |
622 | if (vptr->vlgrp) { |
623 | for (vid = 0; vid < VLAN_VID_MASK; vid++) { | |
624 | if (vlan_group_get_device(vptr->vlgrp, vid)) { | |
625 | /* If Tagging option is enabled and | |
626 | VLAN ID is not zero, then | |
627 | turn on MCFG_RTGOPT also */ | |
628 | if (vid != 0) | |
629 | WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG); | |
630 | ||
01faccbf | 631 | mac_set_vlan_cam(regs, 0, (u8 *) &vid); |
501e4d24 SH |
632 | } |
633 | } | |
1da177e4 | 634 | vptr->vCAMmask[0] |= 1; |
01faccbf | 635 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
1da177e4 LT |
636 | } else { |
637 | u16 temp = 0; | |
01faccbf | 638 | mac_set_vlan_cam(regs, 0, (u8 *) &temp); |
1da177e4 | 639 | temp = 1; |
01faccbf | 640 | mac_set_vlan_cam_mask(regs, (u8 *) &temp); |
1da177e4 LT |
641 | } |
642 | } | |
643 | ||
501e4d24 SH |
644 | static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
645 | { | |
646 | struct velocity_info *vptr = netdev_priv(dev); | |
647 | ||
648 | spin_lock_irq(&vptr->lock); | |
649 | velocity_init_cam_filter(vptr); | |
650 | spin_unlock_irq(&vptr->lock); | |
651 | } | |
652 | ||
653 | static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
654 | { | |
655 | struct velocity_info *vptr = netdev_priv(dev); | |
656 | ||
657 | spin_lock_irq(&vptr->lock); | |
658 | vlan_group_set_device(vptr->vlgrp, vid, NULL); | |
659 | velocity_init_cam_filter(vptr); | |
660 | spin_unlock_irq(&vptr->lock); | |
661 | } | |
662 | ||
663 | ||
1da177e4 LT |
664 | /** |
665 | * velocity_rx_reset - handle a receive reset | |
666 | * @vptr: velocity we are resetting | |
667 | * | |
668 | * Reset the ownership and status for the receive ring side. | |
669 | * Hand all the receive queue to the NIC. | |
670 | */ | |
671 | ||
672 | static void velocity_rx_reset(struct velocity_info *vptr) | |
673 | { | |
674 | ||
675 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
676 | int i; | |
677 | ||
678 | vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0; | |
679 | ||
680 | /* | |
681 | * Init state, all RD entries belong to the NIC | |
682 | */ | |
683 | for (i = 0; i < vptr->options.numrx; ++i) | |
684 | vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC; | |
685 | ||
686 | writew(vptr->options.numrx, ®s->RBRDU); | |
687 | writel(vptr->rd_pool_dma, ®s->RDBaseLo); | |
688 | writew(0, ®s->RDIdx); | |
689 | writew(vptr->options.numrx - 1, ®s->RDCSize); | |
690 | } | |
691 | ||
692 | /** | |
693 | * velocity_init_registers - initialise MAC registers | |
694 | * @vptr: velocity to init | |
695 | * @type: type of initialisation (hot or cold) | |
696 | * | |
697 | * Initialise the MAC on a reset or on first set up on the | |
698 | * hardware. | |
699 | */ | |
700 | ||
6aa20a22 | 701 | static void velocity_init_registers(struct velocity_info *vptr, |
1da177e4 LT |
702 | enum velocity_init_type type) |
703 | { | |
704 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
705 | int i, mii_status; | |
706 | ||
707 | mac_wol_reset(regs); | |
708 | ||
709 | switch (type) { | |
710 | case VELOCITY_INIT_RESET: | |
711 | case VELOCITY_INIT_WOL: | |
712 | ||
713 | netif_stop_queue(vptr->dev); | |
714 | ||
715 | /* | |
716 | * Reset RX to prevent RX pointer not on the 4X location | |
717 | */ | |
718 | velocity_rx_reset(vptr); | |
719 | mac_rx_queue_run(regs); | |
720 | mac_rx_queue_wake(regs); | |
721 | ||
722 | mii_status = velocity_get_opt_media_mode(vptr); | |
723 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { | |
724 | velocity_print_link_status(vptr); | |
725 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) | |
726 | netif_wake_queue(vptr->dev); | |
727 | } | |
728 | ||
729 | enable_flow_control_ability(vptr); | |
730 | ||
731 | mac_clear_isr(regs); | |
732 | writel(CR0_STOP, ®s->CR0Clr); | |
6aa20a22 | 733 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), |
1da177e4 LT |
734 | ®s->CR0Set); |
735 | ||
736 | break; | |
737 | ||
738 | case VELOCITY_INIT_COLD: | |
739 | default: | |
740 | /* | |
741 | * Do reset | |
742 | */ | |
743 | velocity_soft_reset(vptr); | |
744 | mdelay(5); | |
745 | ||
746 | mac_eeprom_reload(regs); | |
747 | for (i = 0; i < 6; i++) { | |
748 | writeb(vptr->dev->dev_addr[i], &(regs->PAR[i])); | |
749 | } | |
750 | /* | |
751 | * clear Pre_ACPI bit. | |
752 | */ | |
753 | BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA)); | |
754 | mac_set_rx_thresh(regs, vptr->options.rx_thresh); | |
755 | mac_set_dma_length(regs, vptr->options.DMA_length); | |
756 | ||
757 | writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet); | |
758 | /* | |
759 | * Back off algorithm use original IEEE standard | |
760 | */ | |
761 | BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB); | |
762 | ||
763 | /* | |
764 | * Init CAM filter | |
765 | */ | |
766 | velocity_init_cam_filter(vptr); | |
767 | ||
768 | /* | |
769 | * Set packet filter: Receive directed and broadcast address | |
770 | */ | |
771 | velocity_set_multi(vptr->dev); | |
772 | ||
773 | /* | |
774 | * Enable MII auto-polling | |
775 | */ | |
776 | enable_mii_autopoll(regs); | |
777 | ||
778 | vptr->int_mask = INT_MASK_DEF; | |
779 | ||
780 | writel(cpu_to_le32(vptr->rd_pool_dma), ®s->RDBaseLo); | |
781 | writew(vptr->options.numrx - 1, ®s->RDCSize); | |
782 | mac_rx_queue_run(regs); | |
783 | mac_rx_queue_wake(regs); | |
784 | ||
785 | writew(vptr->options.numtx - 1, ®s->TDCSize); | |
786 | ||
787 | for (i = 0; i < vptr->num_txq; i++) { | |
788 | writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i])); | |
789 | mac_tx_queue_run(regs, i); | |
790 | } | |
791 | ||
792 | init_flow_control_register(vptr); | |
793 | ||
794 | writel(CR0_STOP, ®s->CR0Clr); | |
795 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set); | |
796 | ||
797 | mii_status = velocity_get_opt_media_mode(vptr); | |
798 | netif_stop_queue(vptr->dev); | |
799 | ||
800 | mii_init(vptr, mii_status); | |
801 | ||
802 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { | |
803 | velocity_print_link_status(vptr); | |
804 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) | |
805 | netif_wake_queue(vptr->dev); | |
806 | } | |
807 | ||
808 | enable_flow_control_ability(vptr); | |
809 | mac_hw_mibs_init(regs); | |
810 | mac_write_int_mask(vptr->int_mask, regs); | |
811 | mac_clear_isr(regs); | |
812 | ||
813 | } | |
814 | } | |
815 | ||
816 | /** | |
817 | * velocity_soft_reset - soft reset | |
818 | * @vptr: velocity to reset | |
819 | * | |
820 | * Kick off a soft reset of the velocity adapter and then poll | |
821 | * until the reset sequence has completed before returning. | |
822 | */ | |
823 | ||
824 | static int velocity_soft_reset(struct velocity_info *vptr) | |
825 | { | |
826 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
827 | int i = 0; | |
828 | ||
829 | writel(CR0_SFRST, ®s->CR0Set); | |
830 | ||
831 | for (i = 0; i < W_MAX_TIMEOUT; i++) { | |
832 | udelay(5); | |
833 | if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set)) | |
834 | break; | |
835 | } | |
836 | ||
837 | if (i == W_MAX_TIMEOUT) { | |
838 | writel(CR0_FORSRST, ®s->CR0Set); | |
839 | /* FIXME: PCI POSTING */ | |
840 | /* delay 2ms */ | |
841 | mdelay(2); | |
842 | } | |
843 | return 0; | |
844 | } | |
845 | ||
846 | /** | |
847 | * velocity_found1 - set up discovered velocity card | |
848 | * @pdev: PCI device | |
849 | * @ent: PCI device table entry that matched | |
850 | * | |
851 | * Configure a discovered adapter from scratch. Return a negative | |
852 | * errno error code on failure paths. | |
853 | */ | |
854 | ||
855 | static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent) | |
856 | { | |
857 | static int first = 1; | |
858 | struct net_device *dev; | |
859 | int i; | |
cabb7667 | 860 | const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data]; |
1da177e4 LT |
861 | struct velocity_info *vptr; |
862 | struct mac_regs __iomem * regs; | |
863 | int ret = -ENOMEM; | |
864 | ||
e54f4893 JG |
865 | /* FIXME: this driver, like almost all other ethernet drivers, |
866 | * can support more than MAX_UNITS. | |
867 | */ | |
1da177e4 | 868 | if (velocity_nics >= MAX_UNITS) { |
6aa20a22 | 869 | dev_notice(&pdev->dev, "already found %d NICs.\n", |
e54f4893 | 870 | velocity_nics); |
1da177e4 LT |
871 | return -ENODEV; |
872 | } | |
873 | ||
874 | dev = alloc_etherdev(sizeof(struct velocity_info)); | |
e54f4893 | 875 | if (!dev) { |
9b91cf9d | 876 | dev_err(&pdev->dev, "allocate net device failed.\n"); |
1da177e4 LT |
877 | goto out; |
878 | } | |
6aa20a22 | 879 | |
1da177e4 | 880 | /* Chain it all together */ |
6aa20a22 | 881 | |
1da177e4 | 882 | SET_NETDEV_DEV(dev, &pdev->dev); |
8ab6f3f7 | 883 | vptr = netdev_priv(dev); |
1da177e4 LT |
884 | |
885 | ||
886 | if (first) { | |
6aa20a22 | 887 | printk(KERN_INFO "%s Ver. %s\n", |
1da177e4 LT |
888 | VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); |
889 | printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n"); | |
890 | printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n"); | |
891 | first = 0; | |
892 | } | |
893 | ||
894 | velocity_init_info(pdev, vptr, info); | |
895 | ||
896 | vptr->dev = dev; | |
897 | ||
898 | dev->irq = pdev->irq; | |
899 | ||
900 | ret = pci_enable_device(pdev); | |
6aa20a22 | 901 | if (ret < 0) |
1da177e4 LT |
902 | goto err_free_dev; |
903 | ||
904 | ret = velocity_get_pci_info(vptr, pdev); | |
905 | if (ret < 0) { | |
e54f4893 | 906 | /* error message already printed */ |
1da177e4 LT |
907 | goto err_disable; |
908 | } | |
909 | ||
910 | ret = pci_request_regions(pdev, VELOCITY_NAME); | |
911 | if (ret < 0) { | |
9b91cf9d | 912 | dev_err(&pdev->dev, "No PCI resources.\n"); |
1da177e4 LT |
913 | goto err_disable; |
914 | } | |
915 | ||
cabb7667 | 916 | regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE); |
1da177e4 LT |
917 | if (regs == NULL) { |
918 | ret = -EIO; | |
919 | goto err_release_res; | |
920 | } | |
921 | ||
922 | vptr->mac_regs = regs; | |
923 | ||
924 | mac_wol_reset(regs); | |
925 | ||
926 | dev->base_addr = vptr->ioaddr; | |
927 | ||
928 | for (i = 0; i < 6; i++) | |
929 | dev->dev_addr[i] = readb(®s->PAR[i]); | |
930 | ||
931 | ||
932 | velocity_get_options(&vptr->options, velocity_nics, dev->name); | |
933 | ||
6aa20a22 | 934 | /* |
1da177e4 LT |
935 | * Mask out the options cannot be set to the chip |
936 | */ | |
6aa20a22 | 937 | |
1da177e4 LT |
938 | vptr->options.flags &= info->flags; |
939 | ||
940 | /* | |
941 | * Enable the chip specified capbilities | |
942 | */ | |
6aa20a22 | 943 | |
1da177e4 LT |
944 | vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL); |
945 | ||
946 | vptr->wol_opts = vptr->options.wol_opts; | |
947 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
948 | ||
949 | vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs); | |
950 | ||
951 | dev->irq = pdev->irq; | |
952 | dev->open = velocity_open; | |
953 | dev->hard_start_xmit = velocity_xmit; | |
954 | dev->stop = velocity_close; | |
955 | dev->get_stats = velocity_get_stats; | |
956 | dev->set_multicast_list = velocity_set_multi; | |
957 | dev->do_ioctl = velocity_ioctl; | |
958 | dev->ethtool_ops = &velocity_ethtool_ops; | |
959 | dev->change_mtu = velocity_change_mtu; | |
501e4d24 SH |
960 | |
961 | dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid; | |
962 | dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid; | |
963 | ||
1da177e4 LT |
964 | #ifdef VELOCITY_ZERO_COPY_SUPPORT |
965 | dev->features |= NETIF_F_SG; | |
966 | #endif | |
501e4d24 | 967 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER; |
1da177e4 | 968 | |
501e4d24 | 969 | if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) |
9f3f46b5 | 970 | dev->features |= NETIF_F_IP_CSUM; |
1da177e4 LT |
971 | |
972 | ret = register_netdev(dev); | |
973 | if (ret < 0) | |
974 | goto err_iounmap; | |
975 | ||
8a22dddb FR |
976 | if (velocity_get_link(dev)) |
977 | netif_carrier_off(dev); | |
978 | ||
1da177e4 LT |
979 | velocity_print_info(vptr); |
980 | pci_set_drvdata(pdev, dev); | |
6aa20a22 | 981 | |
1da177e4 | 982 | /* and leave the chip powered down */ |
6aa20a22 | 983 | |
1da177e4 LT |
984 | pci_set_power_state(pdev, PCI_D3hot); |
985 | #ifdef CONFIG_PM | |
986 | { | |
987 | unsigned long flags; | |
988 | ||
989 | spin_lock_irqsave(&velocity_dev_list_lock, flags); | |
990 | list_add(&vptr->list, &velocity_dev_list); | |
991 | spin_unlock_irqrestore(&velocity_dev_list_lock, flags); | |
992 | } | |
993 | #endif | |
994 | velocity_nics++; | |
995 | out: | |
996 | return ret; | |
997 | ||
998 | err_iounmap: | |
999 | iounmap(regs); | |
1000 | err_release_res: | |
1001 | pci_release_regions(pdev); | |
1002 | err_disable: | |
1003 | pci_disable_device(pdev); | |
1004 | err_free_dev: | |
1005 | free_netdev(dev); | |
1006 | goto out; | |
1007 | } | |
1008 | ||
1009 | /** | |
1010 | * velocity_print_info - per driver data | |
1011 | * @vptr: velocity | |
1012 | * | |
1013 | * Print per driver data as the kernel driver finds Velocity | |
1014 | * hardware | |
1015 | */ | |
1016 | ||
1017 | static void __devinit velocity_print_info(struct velocity_info *vptr) | |
1018 | { | |
1019 | struct net_device *dev = vptr->dev; | |
1020 | ||
1021 | printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id)); | |
6aa20a22 JG |
1022 | printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
1023 | dev->name, | |
1024 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
1da177e4 LT |
1025 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); |
1026 | } | |
1027 | ||
1028 | /** | |
1029 | * velocity_init_info - init private data | |
1030 | * @pdev: PCI device | |
1031 | * @vptr: Velocity info | |
1032 | * @info: Board type | |
1033 | * | |
1034 | * Set up the initial velocity_info struct for the device that has been | |
1035 | * discovered. | |
1036 | */ | |
1037 | ||
cabb7667 JG |
1038 | static void __devinit velocity_init_info(struct pci_dev *pdev, |
1039 | struct velocity_info *vptr, | |
1040 | const struct velocity_info_tbl *info) | |
1da177e4 LT |
1041 | { |
1042 | memset(vptr, 0, sizeof(struct velocity_info)); | |
1043 | ||
1044 | vptr->pdev = pdev; | |
1045 | vptr->chip_id = info->chip_id; | |
1da177e4 LT |
1046 | vptr->num_txq = info->txqueue; |
1047 | vptr->multicast_limit = MCAM_SIZE; | |
1048 | spin_lock_init(&vptr->lock); | |
1049 | INIT_LIST_HEAD(&vptr->list); | |
1050 | } | |
1051 | ||
1052 | /** | |
1053 | * velocity_get_pci_info - retrieve PCI info for device | |
1054 | * @vptr: velocity device | |
1055 | * @pdev: PCI device it matches | |
1056 | * | |
1057 | * Retrieve the PCI configuration space data that interests us from | |
1058 | * the kernel PCI layer | |
1059 | */ | |
1060 | ||
1061 | static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev) | |
1062 | { | |
44c10138 | 1063 | vptr->rev_id = pdev->revision; |
6aa20a22 | 1064 | |
1da177e4 LT |
1065 | pci_set_master(pdev); |
1066 | ||
1067 | vptr->ioaddr = pci_resource_start(pdev, 0); | |
1068 | vptr->memaddr = pci_resource_start(pdev, 1); | |
6aa20a22 | 1069 | |
e54f4893 | 1070 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { |
9b91cf9d | 1071 | dev_err(&pdev->dev, |
e54f4893 | 1072 | "region #0 is not an I/O resource, aborting.\n"); |
1da177e4 LT |
1073 | return -EINVAL; |
1074 | } | |
1075 | ||
e54f4893 | 1076 | if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) { |
9b91cf9d | 1077 | dev_err(&pdev->dev, |
e54f4893 | 1078 | "region #1 is an I/O resource, aborting.\n"); |
1da177e4 LT |
1079 | return -EINVAL; |
1080 | } | |
1081 | ||
cabb7667 | 1082 | if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) { |
9b91cf9d | 1083 | dev_err(&pdev->dev, "region #1 is too small.\n"); |
1da177e4 LT |
1084 | return -EINVAL; |
1085 | } | |
1086 | vptr->pdev = pdev; | |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | /** | |
1092 | * velocity_init_rings - set up DMA rings | |
1093 | * @vptr: Velocity to set up | |
1094 | * | |
1095 | * Allocate PCI mapped DMA rings for the receive and transmit layer | |
1096 | * to use. | |
1097 | */ | |
1098 | ||
1099 | static int velocity_init_rings(struct velocity_info *vptr) | |
1100 | { | |
1101 | int i; | |
1102 | unsigned int psize; | |
1103 | unsigned int tsize; | |
1104 | dma_addr_t pool_dma; | |
1105 | u8 *pool; | |
1106 | ||
1107 | /* | |
6aa20a22 | 1108 | * Allocate all RD/TD rings a single pool |
1da177e4 | 1109 | */ |
6aa20a22 JG |
1110 | |
1111 | psize = vptr->options.numrx * sizeof(struct rx_desc) + | |
1da177e4 LT |
1112 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq; |
1113 | ||
1114 | /* | |
1115 | * pci_alloc_consistent() fulfills the requirement for 64 bytes | |
1116 | * alignment | |
1117 | */ | |
1118 | pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma); | |
1119 | ||
1120 | if (pool == NULL) { | |
6aa20a22 | 1121 | printk(KERN_ERR "%s : DMA memory allocation failed.\n", |
1da177e4 LT |
1122 | vptr->dev->name); |
1123 | return -ENOMEM; | |
1124 | } | |
1125 | ||
1126 | memset(pool, 0, psize); | |
1127 | ||
1128 | vptr->rd_ring = (struct rx_desc *) pool; | |
1129 | ||
1130 | vptr->rd_pool_dma = pool_dma; | |
1131 | ||
1132 | tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq; | |
6aa20a22 | 1133 | vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize, |
1da177e4 LT |
1134 | &vptr->tx_bufs_dma); |
1135 | ||
1136 | if (vptr->tx_bufs == NULL) { | |
6aa20a22 | 1137 | printk(KERN_ERR "%s: DMA memory allocation failed.\n", |
1da177e4 LT |
1138 | vptr->dev->name); |
1139 | pci_free_consistent(vptr->pdev, psize, pool, pool_dma); | |
1140 | return -ENOMEM; | |
1141 | } | |
1142 | ||
1143 | memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq); | |
1144 | ||
1145 | i = vptr->options.numrx * sizeof(struct rx_desc); | |
1146 | pool += i; | |
1147 | pool_dma += i; | |
1148 | for (i = 0; i < vptr->num_txq; i++) { | |
1149 | int offset = vptr->options.numtx * sizeof(struct tx_desc); | |
1150 | ||
1151 | vptr->td_pool_dma[i] = pool_dma; | |
1152 | vptr->td_rings[i] = (struct tx_desc *) pool; | |
1153 | pool += offset; | |
1154 | pool_dma += offset; | |
1155 | } | |
1156 | return 0; | |
1157 | } | |
1158 | ||
1159 | /** | |
1160 | * velocity_free_rings - free PCI ring pointers | |
1161 | * @vptr: Velocity to free from | |
1162 | * | |
1163 | * Clean up the PCI ring buffers allocated to this velocity. | |
1164 | */ | |
1165 | ||
1166 | static void velocity_free_rings(struct velocity_info *vptr) | |
1167 | { | |
1168 | int size; | |
1169 | ||
6aa20a22 | 1170 | size = vptr->options.numrx * sizeof(struct rx_desc) + |
1da177e4 LT |
1171 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq; |
1172 | ||
1173 | pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma); | |
1174 | ||
1175 | size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq; | |
1176 | ||
1177 | pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma); | |
1178 | } | |
1179 | ||
1180 | static inline void velocity_give_many_rx_descs(struct velocity_info *vptr) | |
1181 | { | |
1182 | struct mac_regs __iomem *regs = vptr->mac_regs; | |
1183 | int avail, dirty, unusable; | |
1184 | ||
1185 | /* | |
1186 | * RD number must be equal to 4X per hardware spec | |
1187 | * (programming guide rev 1.20, p.13) | |
1188 | */ | |
1189 | if (vptr->rd_filled < 4) | |
1190 | return; | |
1191 | ||
1192 | wmb(); | |
1193 | ||
1194 | unusable = vptr->rd_filled & 0x0003; | |
1195 | dirty = vptr->rd_dirty - unusable; | |
1196 | for (avail = vptr->rd_filled & 0xfffc; avail; avail--) { | |
1197 | dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1; | |
1198 | vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC; | |
1199 | } | |
1200 | ||
1201 | writew(vptr->rd_filled & 0xfffc, ®s->RBRDU); | |
1202 | vptr->rd_filled = unusable; | |
1203 | } | |
1204 | ||
1205 | static int velocity_rx_refill(struct velocity_info *vptr) | |
1206 | { | |
1207 | int dirty = vptr->rd_dirty, done = 0, ret = 0; | |
1208 | ||
1209 | do { | |
1210 | struct rx_desc *rd = vptr->rd_ring + dirty; | |
1211 | ||
1212 | /* Fine for an all zero Rx desc at init time as well */ | |
1213 | if (rd->rdesc0.owner == OWNED_BY_NIC) | |
1214 | break; | |
1215 | ||
1216 | if (!vptr->rd_info[dirty].skb) { | |
1217 | ret = velocity_alloc_rx_buf(vptr, dirty); | |
1218 | if (ret < 0) | |
1219 | break; | |
1220 | } | |
1221 | done++; | |
6aa20a22 | 1222 | dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0; |
1da177e4 LT |
1223 | } while (dirty != vptr->rd_curr); |
1224 | ||
1225 | if (done) { | |
1226 | vptr->rd_dirty = dirty; | |
1227 | vptr->rd_filled += done; | |
1228 | velocity_give_many_rx_descs(vptr); | |
1229 | } | |
1230 | ||
1231 | return ret; | |
1232 | } | |
1233 | ||
1234 | /** | |
1235 | * velocity_init_rd_ring - set up receive ring | |
1236 | * @vptr: velocity to configure | |
1237 | * | |
1238 | * Allocate and set up the receive buffers for each ring slot and | |
1239 | * assign them to the network adapter. | |
1240 | */ | |
1241 | ||
1242 | static int velocity_init_rd_ring(struct velocity_info *vptr) | |
1243 | { | |
ae94607d | 1244 | int ret; |
1da177e4 | 1245 | |
ae94607d MK |
1246 | vptr->rd_info = kcalloc(vptr->options.numrx, |
1247 | sizeof(struct velocity_rd_info), GFP_KERNEL); | |
1248 | if (!vptr->rd_info) | |
1249 | return -ENOMEM; | |
1da177e4 LT |
1250 | |
1251 | vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0; | |
1252 | ||
1253 | ret = velocity_rx_refill(vptr); | |
1254 | if (ret < 0) { | |
1255 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR | |
1256 | "%s: failed to allocate RX buffer.\n", vptr->dev->name); | |
1257 | velocity_free_rd_ring(vptr); | |
1258 | } | |
ae94607d | 1259 | |
1da177e4 LT |
1260 | return ret; |
1261 | } | |
1262 | ||
1263 | /** | |
1264 | * velocity_free_rd_ring - free receive ring | |
1265 | * @vptr: velocity to clean up | |
1266 | * | |
1267 | * Free the receive buffers for each ring slot and any | |
1268 | * attached socket buffers that need to go away. | |
1269 | */ | |
1270 | ||
1271 | static void velocity_free_rd_ring(struct velocity_info *vptr) | |
1272 | { | |
1273 | int i; | |
1274 | ||
1275 | if (vptr->rd_info == NULL) | |
1276 | return; | |
1277 | ||
1278 | for (i = 0; i < vptr->options.numrx; i++) { | |
1279 | struct velocity_rd_info *rd_info = &(vptr->rd_info[i]); | |
b3c3e7d7 FR |
1280 | struct rx_desc *rd = vptr->rd_ring + i; |
1281 | ||
1282 | memset(rd, 0, sizeof(*rd)); | |
1da177e4 LT |
1283 | |
1284 | if (!rd_info->skb) | |
1285 | continue; | |
1286 | pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz, | |
1287 | PCI_DMA_FROMDEVICE); | |
1288 | rd_info->skb_dma = (dma_addr_t) NULL; | |
1289 | ||
1290 | dev_kfree_skb(rd_info->skb); | |
1291 | rd_info->skb = NULL; | |
1292 | } | |
1293 | ||
1294 | kfree(vptr->rd_info); | |
1295 | vptr->rd_info = NULL; | |
1296 | } | |
1297 | ||
1298 | /** | |
1299 | * velocity_init_td_ring - set up transmit ring | |
1300 | * @vptr: velocity | |
1301 | * | |
1302 | * Set up the transmit ring and chain the ring pointers together. | |
1303 | * Returns zero on success or a negative posix errno code for | |
1304 | * failure. | |
1305 | */ | |
6aa20a22 | 1306 | |
1da177e4 LT |
1307 | static int velocity_init_td_ring(struct velocity_info *vptr) |
1308 | { | |
1309 | int i, j; | |
1310 | dma_addr_t curr; | |
1311 | struct tx_desc *td; | |
1312 | struct velocity_td_info *td_info; | |
1da177e4 LT |
1313 | |
1314 | /* Init the TD ring entries */ | |
1315 | for (j = 0; j < vptr->num_txq; j++) { | |
1316 | curr = vptr->td_pool_dma[j]; | |
1317 | ||
ae94607d MK |
1318 | vptr->td_infos[j] = kcalloc(vptr->options.numtx, |
1319 | sizeof(struct velocity_td_info), | |
1320 | GFP_KERNEL); | |
1321 | if (!vptr->td_infos[j]) { | |
1da177e4 LT |
1322 | while(--j >= 0) |
1323 | kfree(vptr->td_infos[j]); | |
1324 | return -ENOMEM; | |
1325 | } | |
1da177e4 LT |
1326 | |
1327 | for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) { | |
1328 | td = &(vptr->td_rings[j][i]); | |
1329 | td_info = &(vptr->td_infos[j][i]); | |
1330 | td_info->buf = vptr->tx_bufs + | |
1331 | (j * vptr->options.numtx + i) * PKT_BUF_SZ; | |
1332 | td_info->buf_dma = vptr->tx_bufs_dma + | |
1333 | (j * vptr->options.numtx + i) * PKT_BUF_SZ; | |
1334 | } | |
1335 | vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0; | |
1336 | } | |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | /* | |
1341 | * FIXME: could we merge this with velocity_free_tx_buf ? | |
1342 | */ | |
1343 | ||
1344 | static void velocity_free_td_ring_entry(struct velocity_info *vptr, | |
1345 | int q, int n) | |
1346 | { | |
1347 | struct velocity_td_info * td_info = &(vptr->td_infos[q][n]); | |
1348 | int i; | |
6aa20a22 | 1349 | |
1da177e4 LT |
1350 | if (td_info == NULL) |
1351 | return; | |
6aa20a22 | 1352 | |
1da177e4 LT |
1353 | if (td_info->skb) { |
1354 | for (i = 0; i < td_info->nskb_dma; i++) | |
1355 | { | |
1356 | if (td_info->skb_dma[i]) { | |
6aa20a22 | 1357 | pci_unmap_single(vptr->pdev, td_info->skb_dma[i], |
1da177e4 LT |
1358 | td_info->skb->len, PCI_DMA_TODEVICE); |
1359 | td_info->skb_dma[i] = (dma_addr_t) NULL; | |
1360 | } | |
1361 | } | |
1362 | dev_kfree_skb(td_info->skb); | |
1363 | td_info->skb = NULL; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | /** | |
1368 | * velocity_free_td_ring - free td ring | |
1369 | * @vptr: velocity | |
1370 | * | |
1371 | * Free up the transmit ring for this particular velocity adapter. | |
1372 | * We free the ring contents but not the ring itself. | |
1373 | */ | |
6aa20a22 | 1374 | |
1da177e4 LT |
1375 | static void velocity_free_td_ring(struct velocity_info *vptr) |
1376 | { | |
1377 | int i, j; | |
1378 | ||
1379 | for (j = 0; j < vptr->num_txq; j++) { | |
1380 | if (vptr->td_infos[j] == NULL) | |
1381 | continue; | |
1382 | for (i = 0; i < vptr->options.numtx; i++) { | |
1383 | velocity_free_td_ring_entry(vptr, j, i); | |
1384 | ||
1385 | } | |
b4558ea9 JJ |
1386 | kfree(vptr->td_infos[j]); |
1387 | vptr->td_infos[j] = NULL; | |
1da177e4 LT |
1388 | } |
1389 | } | |
1390 | ||
1391 | /** | |
1392 | * velocity_rx_srv - service RX interrupt | |
1393 | * @vptr: velocity | |
1394 | * @status: adapter status (unused) | |
1395 | * | |
1396 | * Walk the receive ring of the velocity adapter and remove | |
1397 | * any received packets from the receive queue. Hand the ring | |
1398 | * slots back to the adapter for reuse. | |
1399 | */ | |
6aa20a22 | 1400 | |
1da177e4 LT |
1401 | static int velocity_rx_srv(struct velocity_info *vptr, int status) |
1402 | { | |
1403 | struct net_device_stats *stats = &vptr->stats; | |
1404 | int rd_curr = vptr->rd_curr; | |
1405 | int works = 0; | |
1406 | ||
1407 | do { | |
1408 | struct rx_desc *rd = vptr->rd_ring + rd_curr; | |
1409 | ||
1410 | if (!vptr->rd_info[rd_curr].skb) | |
1411 | break; | |
1412 | ||
1413 | if (rd->rdesc0.owner == OWNED_BY_NIC) | |
1414 | break; | |
1415 | ||
1416 | rmb(); | |
1417 | ||
1418 | /* | |
1419 | * Don't drop CE or RL error frame although RXOK is off | |
1420 | */ | |
1421 | if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) { | |
1422 | if (velocity_receive_frame(vptr, rd_curr) < 0) | |
1423 | stats->rx_dropped++; | |
1424 | } else { | |
1425 | if (rd->rdesc0.RSR & RSR_CRC) | |
1426 | stats->rx_crc_errors++; | |
1427 | if (rd->rdesc0.RSR & RSR_FAE) | |
1428 | stats->rx_frame_errors++; | |
1429 | ||
1430 | stats->rx_dropped++; | |
1431 | } | |
1432 | ||
1433 | rd->inten = 1; | |
1434 | ||
1435 | vptr->dev->last_rx = jiffies; | |
1436 | ||
1437 | rd_curr++; | |
1438 | if (rd_curr >= vptr->options.numrx) | |
1439 | rd_curr = 0; | |
1440 | } while (++works <= 15); | |
1441 | ||
1442 | vptr->rd_curr = rd_curr; | |
1443 | ||
1444 | if (works > 0 && velocity_rx_refill(vptr) < 0) { | |
1445 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR | |
1446 | "%s: rx buf allocation failure\n", vptr->dev->name); | |
1447 | } | |
1448 | ||
1449 | VAR_USED(stats); | |
1450 | return works; | |
1451 | } | |
1452 | ||
1453 | /** | |
1454 | * velocity_rx_csum - checksum process | |
1455 | * @rd: receive packet descriptor | |
1456 | * @skb: network layer packet buffer | |
1457 | * | |
1458 | * Process the status bits for the received packet and determine | |
1459 | * if the checksum was computed and verified by the hardware | |
1460 | */ | |
6aa20a22 | 1461 | |
1da177e4 LT |
1462 | static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb) |
1463 | { | |
1464 | skb->ip_summed = CHECKSUM_NONE; | |
1465 | ||
1466 | if (rd->rdesc1.CSM & CSM_IPKT) { | |
1467 | if (rd->rdesc1.CSM & CSM_IPOK) { | |
6aa20a22 | 1468 | if ((rd->rdesc1.CSM & CSM_TCPKT) || |
1da177e4 LT |
1469 | (rd->rdesc1.CSM & CSM_UDPKT)) { |
1470 | if (!(rd->rdesc1.CSM & CSM_TUPOK)) { | |
1471 | return; | |
1472 | } | |
1473 | } | |
1474 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1475 | } | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | /** | |
1480 | * velocity_rx_copy - in place Rx copy for small packets | |
1481 | * @rx_skb: network layer packet buffer candidate | |
1482 | * @pkt_size: received data size | |
1483 | * @rd: receive packet descriptor | |
1484 | * @dev: network device | |
1485 | * | |
1486 | * Replace the current skb that is scheduled for Rx processing by a | |
1487 | * shorter, immediatly allocated skb, if the received packet is small | |
1488 | * enough. This function returns a negative value if the received | |
1489 | * packet is too big or if memory is exhausted. | |
1490 | */ | |
1491 | static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size, | |
1492 | struct velocity_info *vptr) | |
1493 | { | |
1494 | int ret = -1; | |
1495 | ||
1496 | if (pkt_size < rx_copybreak) { | |
1497 | struct sk_buff *new_skb; | |
1498 | ||
1499 | new_skb = dev_alloc_skb(pkt_size + 2); | |
1500 | if (new_skb) { | |
1501 | new_skb->dev = vptr->dev; | |
1502 | new_skb->ip_summed = rx_skb[0]->ip_summed; | |
1503 | ||
1504 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) | |
1505 | skb_reserve(new_skb, 2); | |
1506 | ||
d626f62b ACM |
1507 | skb_copy_from_linear_data(rx_skb[0], new_skb->data, |
1508 | pkt_size); | |
1da177e4 LT |
1509 | *rx_skb = new_skb; |
1510 | ret = 0; | |
1511 | } | |
6aa20a22 | 1512 | |
1da177e4 LT |
1513 | } |
1514 | return ret; | |
1515 | } | |
1516 | ||
1517 | /** | |
1518 | * velocity_iph_realign - IP header alignment | |
1519 | * @vptr: velocity we are handling | |
1520 | * @skb: network layer packet buffer | |
1521 | * @pkt_size: received data size | |
1522 | * | |
1523 | * Align IP header on a 2 bytes boundary. This behavior can be | |
1524 | * configured by the user. | |
1525 | */ | |
1526 | static inline void velocity_iph_realign(struct velocity_info *vptr, | |
1527 | struct sk_buff *skb, int pkt_size) | |
1528 | { | |
1529 | /* FIXME - memmove ? */ | |
1530 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) { | |
1531 | int i; | |
1532 | ||
1533 | for (i = pkt_size; i >= 0; i--) | |
1534 | *(skb->data + i + 2) = *(skb->data + i); | |
1535 | skb_reserve(skb, 2); | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | /** | |
1540 | * velocity_receive_frame - received packet processor | |
1541 | * @vptr: velocity we are handling | |
1542 | * @idx: ring index | |
6aa20a22 | 1543 | * |
1da177e4 LT |
1544 | * A packet has arrived. We process the packet and if appropriate |
1545 | * pass the frame up the network stack | |
1546 | */ | |
6aa20a22 | 1547 | |
1da177e4 LT |
1548 | static int velocity_receive_frame(struct velocity_info *vptr, int idx) |
1549 | { | |
1550 | void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); | |
1551 | struct net_device_stats *stats = &vptr->stats; | |
1552 | struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]); | |
1553 | struct rx_desc *rd = &(vptr->rd_ring[idx]); | |
1554 | int pkt_len = rd->rdesc0.len; | |
1555 | struct sk_buff *skb; | |
1556 | ||
1557 | if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { | |
1558 | VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name); | |
1559 | stats->rx_length_errors++; | |
1560 | return -EINVAL; | |
1561 | } | |
1562 | ||
1563 | if (rd->rdesc0.RSR & RSR_MAR) | |
1564 | vptr->stats.multicast++; | |
1565 | ||
1566 | skb = rd_info->skb; | |
1da177e4 LT |
1567 | |
1568 | pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, | |
1569 | vptr->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
1570 | ||
1571 | /* | |
1572 | * Drop frame not meeting IEEE 802.3 | |
1573 | */ | |
6aa20a22 | 1574 | |
1da177e4 LT |
1575 | if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) { |
1576 | if (rd->rdesc0.RSR & RSR_RL) { | |
1577 | stats->rx_length_errors++; | |
1578 | return -EINVAL; | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | pci_action = pci_dma_sync_single_for_device; | |
1583 | ||
1584 | velocity_rx_csum(rd, skb); | |
1585 | ||
1586 | if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { | |
1587 | velocity_iph_realign(vptr, skb, pkt_len); | |
1588 | pci_action = pci_unmap_single; | |
1589 | rd_info->skb = NULL; | |
1590 | } | |
1591 | ||
1592 | pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz, | |
1593 | PCI_DMA_FROMDEVICE); | |
1594 | ||
1595 | skb_put(skb, pkt_len - 4); | |
4c13eb66 | 1596 | skb->protocol = eth_type_trans(skb, vptr->dev); |
1da177e4 LT |
1597 | |
1598 | stats->rx_bytes += pkt_len; | |
1599 | netif_rx(skb); | |
1600 | ||
1601 | return 0; | |
1602 | } | |
1603 | ||
1604 | /** | |
1605 | * velocity_alloc_rx_buf - allocate aligned receive buffer | |
1606 | * @vptr: velocity | |
1607 | * @idx: ring index | |
1608 | * | |
1609 | * Allocate a new full sized buffer for the reception of a frame and | |
1610 | * map it into PCI space for the hardware to use. The hardware | |
1611 | * requires *64* byte alignment of the buffer which makes life | |
1612 | * less fun than would be ideal. | |
1613 | */ | |
6aa20a22 | 1614 | |
1da177e4 LT |
1615 | static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) |
1616 | { | |
1617 | struct rx_desc *rd = &(vptr->rd_ring[idx]); | |
1618 | struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]); | |
1619 | ||
1620 | rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64); | |
1621 | if (rd_info->skb == NULL) | |
1622 | return -ENOMEM; | |
1623 | ||
1624 | /* | |
1625 | * Do the gymnastics to get the buffer head for data at | |
1626 | * 64byte alignment. | |
1627 | */ | |
689be439 | 1628 | skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63); |
1da177e4 | 1629 | rd_info->skb->dev = vptr->dev; |
689be439 | 1630 | rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE); |
6aa20a22 | 1631 | |
1da177e4 LT |
1632 | /* |
1633 | * Fill in the descriptor to match | |
6aa20a22 JG |
1634 | */ |
1635 | ||
1da177e4 LT |
1636 | *((u32 *) & (rd->rdesc0)) = 0; |
1637 | rd->len = cpu_to_le32(vptr->rx_buf_sz); | |
1638 | rd->inten = 1; | |
1639 | rd->pa_low = cpu_to_le32(rd_info->skb_dma); | |
1640 | rd->pa_high = 0; | |
1641 | return 0; | |
1642 | } | |
1643 | ||
1644 | /** | |
1645 | * tx_srv - transmit interrupt service | |
1646 | * @vptr; Velocity | |
1647 | * @status: | |
1648 | * | |
1649 | * Scan the queues looking for transmitted packets that | |
1650 | * we can complete and clean up. Update any statistics as | |
3a4fa0a2 | 1651 | * necessary/ |
1da177e4 | 1652 | */ |
6aa20a22 | 1653 | |
1da177e4 LT |
1654 | static int velocity_tx_srv(struct velocity_info *vptr, u32 status) |
1655 | { | |
1656 | struct tx_desc *td; | |
1657 | int qnum; | |
1658 | int full = 0; | |
1659 | int idx; | |
1660 | int works = 0; | |
1661 | struct velocity_td_info *tdinfo; | |
1662 | struct net_device_stats *stats = &vptr->stats; | |
1663 | ||
1664 | for (qnum = 0; qnum < vptr->num_txq; qnum++) { | |
6aa20a22 | 1665 | for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0; |
1da177e4 LT |
1666 | idx = (idx + 1) % vptr->options.numtx) { |
1667 | ||
1668 | /* | |
1669 | * Get Tx Descriptor | |
1670 | */ | |
1671 | td = &(vptr->td_rings[qnum][idx]); | |
1672 | tdinfo = &(vptr->td_infos[qnum][idx]); | |
1673 | ||
1674 | if (td->tdesc0.owner == OWNED_BY_NIC) | |
1675 | break; | |
1676 | ||
1677 | if ((works++ > 15)) | |
1678 | break; | |
1679 | ||
1680 | if (td->tdesc0.TSR & TSR0_TERR) { | |
1681 | stats->tx_errors++; | |
1682 | stats->tx_dropped++; | |
1683 | if (td->tdesc0.TSR & TSR0_CDH) | |
1684 | stats->tx_heartbeat_errors++; | |
1685 | if (td->tdesc0.TSR & TSR0_CRS) | |
1686 | stats->tx_carrier_errors++; | |
1687 | if (td->tdesc0.TSR & TSR0_ABT) | |
1688 | stats->tx_aborted_errors++; | |
1689 | if (td->tdesc0.TSR & TSR0_OWC) | |
1690 | stats->tx_window_errors++; | |
1691 | } else { | |
1692 | stats->tx_packets++; | |
1693 | stats->tx_bytes += tdinfo->skb->len; | |
1694 | } | |
1695 | velocity_free_tx_buf(vptr, tdinfo); | |
1696 | vptr->td_used[qnum]--; | |
1697 | } | |
1698 | vptr->td_tail[qnum] = idx; | |
1699 | ||
1700 | if (AVAIL_TD(vptr, qnum) < 1) { | |
1701 | full = 1; | |
1702 | } | |
1703 | } | |
1704 | /* | |
1705 | * Look to see if we should kick the transmit network | |
1706 | * layer for more work. | |
1707 | */ | |
1708 | if (netif_queue_stopped(vptr->dev) && (full == 0) | |
1709 | && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { | |
1710 | netif_wake_queue(vptr->dev); | |
1711 | } | |
1712 | return works; | |
1713 | } | |
1714 | ||
1715 | /** | |
1716 | * velocity_print_link_status - link status reporting | |
1717 | * @vptr: velocity to report on | |
1718 | * | |
1719 | * Turn the link status of the velocity card into a kernel log | |
1720 | * description of the new link state, detailing speed and duplex | |
1721 | * status | |
1722 | */ | |
1723 | ||
1724 | static void velocity_print_link_status(struct velocity_info *vptr) | |
1725 | { | |
1726 | ||
1727 | if (vptr->mii_status & VELOCITY_LINK_FAIL) { | |
1728 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name); | |
1729 | } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) { | |
b4fea61a | 1730 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name); |
1da177e4 LT |
1731 | |
1732 | if (vptr->mii_status & VELOCITY_SPEED_1000) | |
1733 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps"); | |
1734 | else if (vptr->mii_status & VELOCITY_SPEED_100) | |
1735 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps"); | |
1736 | else | |
1737 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps"); | |
1738 | ||
1739 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
1740 | VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n"); | |
1741 | else | |
1742 | VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n"); | |
1743 | } else { | |
1744 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name); | |
1745 | switch (vptr->options.spd_dpx) { | |
1746 | case SPD_DPX_100_HALF: | |
1747 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n"); | |
1748 | break; | |
1749 | case SPD_DPX_100_FULL: | |
1750 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n"); | |
1751 | break; | |
1752 | case SPD_DPX_10_HALF: | |
1753 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n"); | |
1754 | break; | |
1755 | case SPD_DPX_10_FULL: | |
1756 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n"); | |
1757 | break; | |
1758 | default: | |
1759 | break; | |
1760 | } | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | /** | |
1765 | * velocity_error - handle error from controller | |
1766 | * @vptr: velocity | |
1767 | * @status: card status | |
1768 | * | |
1769 | * Process an error report from the hardware and attempt to recover | |
6aa20a22 | 1770 | * the card itself. At the moment we cannot recover from some |
1da177e4 LT |
1771 | * theoretically impossible errors but this could be fixed using |
1772 | * the pci_device_failed logic to bounce the hardware | |
1773 | * | |
1774 | */ | |
6aa20a22 | 1775 | |
1da177e4 LT |
1776 | static void velocity_error(struct velocity_info *vptr, int status) |
1777 | { | |
1778 | ||
1779 | if (status & ISR_TXSTLI) { | |
1780 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
1781 | ||
0e6ff158 | 1782 | printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0])); |
1da177e4 LT |
1783 | BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR); |
1784 | writew(TRDCSR_RUN, ®s->TDCSRClr); | |
1785 | netif_stop_queue(vptr->dev); | |
6aa20a22 | 1786 | |
1da177e4 LT |
1787 | /* FIXME: port over the pci_device_failed code and use it |
1788 | here */ | |
1789 | } | |
1790 | ||
1791 | if (status & ISR_SRCI) { | |
1792 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
1793 | int linked; | |
1794 | ||
1795 | if (vptr->options.spd_dpx == SPD_DPX_AUTO) { | |
1796 | vptr->mii_status = check_connection_type(regs); | |
1797 | ||
1798 | /* | |
6aa20a22 | 1799 | * If it is a 3119, disable frame bursting in |
1da177e4 LT |
1800 | * halfduplex mode and enable it in fullduplex |
1801 | * mode | |
1802 | */ | |
1803 | if (vptr->rev_id < REV_ID_VT3216_A0) { | |
1804 | if (vptr->mii_status | VELOCITY_DUPLEX_FULL) | |
1805 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); | |
1806 | else | |
1807 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); | |
1808 | } | |
1809 | /* | |
1810 | * Only enable CD heart beat counter in 10HD mode | |
1811 | */ | |
1812 | if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) { | |
1813 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); | |
1814 | } else { | |
1815 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); | |
1816 | } | |
1817 | } | |
1818 | /* | |
1819 | * Get link status from PHYSR0 | |
1820 | */ | |
1821 | linked = readb(®s->PHYSR0) & PHYSR0_LINKGD; | |
1822 | ||
1823 | if (linked) { | |
1824 | vptr->mii_status &= ~VELOCITY_LINK_FAIL; | |
8a22dddb | 1825 | netif_carrier_on(vptr->dev); |
1da177e4 LT |
1826 | } else { |
1827 | vptr->mii_status |= VELOCITY_LINK_FAIL; | |
8a22dddb | 1828 | netif_carrier_off(vptr->dev); |
1da177e4 LT |
1829 | } |
1830 | ||
1831 | velocity_print_link_status(vptr); | |
1832 | enable_flow_control_ability(vptr); | |
1833 | ||
1834 | /* | |
6aa20a22 | 1835 | * Re-enable auto-polling because SRCI will disable |
1da177e4 LT |
1836 | * auto-polling |
1837 | */ | |
6aa20a22 | 1838 | |
1da177e4 LT |
1839 | enable_mii_autopoll(regs); |
1840 | ||
1841 | if (vptr->mii_status & VELOCITY_LINK_FAIL) | |
1842 | netif_stop_queue(vptr->dev); | |
1843 | else | |
1844 | netif_wake_queue(vptr->dev); | |
1845 | ||
1846 | }; | |
1847 | if (status & ISR_MIBFI) | |
1848 | velocity_update_hw_mibs(vptr); | |
1849 | if (status & ISR_LSTEI) | |
1850 | mac_rx_queue_wake(vptr->mac_regs); | |
1851 | } | |
1852 | ||
1853 | /** | |
1854 | * velocity_free_tx_buf - free transmit buffer | |
1855 | * @vptr: velocity | |
1856 | * @tdinfo: buffer | |
1857 | * | |
1858 | * Release an transmit buffer. If the buffer was preallocated then | |
1859 | * recycle it, if not then unmap the buffer. | |
1860 | */ | |
6aa20a22 | 1861 | |
1da177e4 LT |
1862 | static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo) |
1863 | { | |
1864 | struct sk_buff *skb = tdinfo->skb; | |
1865 | int i; | |
1866 | ||
1867 | /* | |
1868 | * Don't unmap the pre-allocated tx_bufs | |
1869 | */ | |
1870 | if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) { | |
1871 | ||
1872 | for (i = 0; i < tdinfo->nskb_dma; i++) { | |
1873 | #ifdef VELOCITY_ZERO_COPY_SUPPORT | |
1874 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE); | |
1875 | #else | |
1876 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE); | |
1877 | #endif | |
1878 | tdinfo->skb_dma[i] = 0; | |
1879 | } | |
1880 | } | |
1881 | dev_kfree_skb_irq(skb); | |
1882 | tdinfo->skb = NULL; | |
1883 | } | |
1884 | ||
1885 | /** | |
1886 | * velocity_open - interface activation callback | |
1887 | * @dev: network layer device to open | |
1888 | * | |
1889 | * Called when the network layer brings the interface up. Returns | |
1890 | * a negative posix error code on failure, or zero on success. | |
1891 | * | |
1892 | * All the ring allocation and set up is done on open for this | |
1893 | * adapter to minimise memory usage when inactive | |
1894 | */ | |
6aa20a22 | 1895 | |
1da177e4 LT |
1896 | static int velocity_open(struct net_device *dev) |
1897 | { | |
8ab6f3f7 | 1898 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
1899 | int ret; |
1900 | ||
1901 | vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32); | |
1902 | ||
1903 | ret = velocity_init_rings(vptr); | |
1904 | if (ret < 0) | |
1905 | goto out; | |
1906 | ||
1907 | ret = velocity_init_rd_ring(vptr); | |
1908 | if (ret < 0) | |
1909 | goto err_free_desc_rings; | |
1910 | ||
1911 | ret = velocity_init_td_ring(vptr); | |
1912 | if (ret < 0) | |
1913 | goto err_free_rd_ring; | |
6aa20a22 JG |
1914 | |
1915 | /* Ensure chip is running */ | |
1da177e4 | 1916 | pci_set_power_state(vptr->pdev, PCI_D0); |
6aa20a22 | 1917 | |
1da177e4 LT |
1918 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
1919 | ||
1fb9df5d | 1920 | ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED, |
1da177e4 LT |
1921 | dev->name, dev); |
1922 | if (ret < 0) { | |
1923 | /* Power down the chip */ | |
1924 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
1925 | goto err_free_td_ring; | |
1926 | } | |
1927 | ||
1928 | mac_enable_int(vptr->mac_regs); | |
1929 | netif_start_queue(dev); | |
1930 | vptr->flags |= VELOCITY_FLAGS_OPENED; | |
1931 | out: | |
1932 | return ret; | |
1933 | ||
1934 | err_free_td_ring: | |
1935 | velocity_free_td_ring(vptr); | |
1936 | err_free_rd_ring: | |
1937 | velocity_free_rd_ring(vptr); | |
1938 | err_free_desc_rings: | |
1939 | velocity_free_rings(vptr); | |
1940 | goto out; | |
1941 | } | |
1942 | ||
6aa20a22 | 1943 | /** |
1da177e4 LT |
1944 | * velocity_change_mtu - MTU change callback |
1945 | * @dev: network device | |
1946 | * @new_mtu: desired MTU | |
1947 | * | |
1948 | * Handle requests from the networking layer for MTU change on | |
1949 | * this interface. It gets called on a change by the network layer. | |
1950 | * Return zero for success or negative posix error code. | |
1951 | */ | |
6aa20a22 | 1952 | |
1da177e4 LT |
1953 | static int velocity_change_mtu(struct net_device *dev, int new_mtu) |
1954 | { | |
8ab6f3f7 | 1955 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
1956 | unsigned long flags; |
1957 | int oldmtu = dev->mtu; | |
1958 | int ret = 0; | |
1959 | ||
1960 | if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) { | |
6aa20a22 | 1961 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n", |
1da177e4 LT |
1962 | vptr->dev->name); |
1963 | return -EINVAL; | |
1964 | } | |
1965 | ||
1966 | if (new_mtu != oldmtu) { | |
1967 | spin_lock_irqsave(&vptr->lock, flags); | |
1968 | ||
1969 | netif_stop_queue(dev); | |
1970 | velocity_shutdown(vptr); | |
1971 | ||
1972 | velocity_free_td_ring(vptr); | |
1973 | velocity_free_rd_ring(vptr); | |
1974 | ||
1975 | dev->mtu = new_mtu; | |
1976 | if (new_mtu > 8192) | |
1977 | vptr->rx_buf_sz = 9 * 1024; | |
1978 | else if (new_mtu > 4096) | |
1979 | vptr->rx_buf_sz = 8192; | |
1980 | else | |
1981 | vptr->rx_buf_sz = 4 * 1024; | |
1982 | ||
1983 | ret = velocity_init_rd_ring(vptr); | |
1984 | if (ret < 0) | |
1985 | goto out_unlock; | |
1986 | ||
1987 | ret = velocity_init_td_ring(vptr); | |
1988 | if (ret < 0) | |
1989 | goto out_unlock; | |
1990 | ||
1991 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); | |
1992 | ||
1993 | mac_enable_int(vptr->mac_regs); | |
1994 | netif_start_queue(dev); | |
1995 | out_unlock: | |
1996 | spin_unlock_irqrestore(&vptr->lock, flags); | |
1997 | } | |
1998 | ||
1999 | return ret; | |
2000 | } | |
2001 | ||
2002 | /** | |
2003 | * velocity_shutdown - shut down the chip | |
2004 | * @vptr: velocity to deactivate | |
2005 | * | |
2006 | * Shuts down the internal operations of the velocity and | |
2007 | * disables interrupts, autopolling, transmit and receive | |
2008 | */ | |
6aa20a22 | 2009 | |
1da177e4 LT |
2010 | static void velocity_shutdown(struct velocity_info *vptr) |
2011 | { | |
2012 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
2013 | mac_disable_int(regs); | |
2014 | writel(CR0_STOP, ®s->CR0Set); | |
2015 | writew(0xFFFF, ®s->TDCSRClr); | |
2016 | writeb(0xFF, ®s->RDCSRClr); | |
2017 | safe_disable_mii_autopoll(regs); | |
2018 | mac_clear_isr(regs); | |
2019 | } | |
2020 | ||
2021 | /** | |
2022 | * velocity_close - close adapter callback | |
2023 | * @dev: network device | |
2024 | * | |
2025 | * Callback from the network layer when the velocity is being | |
2026 | * deactivated by the network layer | |
2027 | */ | |
2028 | ||
2029 | static int velocity_close(struct net_device *dev) | |
2030 | { | |
8ab6f3f7 | 2031 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
2032 | |
2033 | netif_stop_queue(dev); | |
2034 | velocity_shutdown(vptr); | |
2035 | ||
2036 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) | |
2037 | velocity_get_ip(vptr); | |
2038 | if (dev->irq != 0) | |
2039 | free_irq(dev->irq, dev); | |
6aa20a22 | 2040 | |
1da177e4 LT |
2041 | /* Power down the chip */ |
2042 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
6aa20a22 | 2043 | |
1da177e4 LT |
2044 | /* Free the resources */ |
2045 | velocity_free_td_ring(vptr); | |
2046 | velocity_free_rd_ring(vptr); | |
2047 | velocity_free_rings(vptr); | |
2048 | ||
2049 | vptr->flags &= (~VELOCITY_FLAGS_OPENED); | |
2050 | return 0; | |
2051 | } | |
2052 | ||
2053 | /** | |
2054 | * velocity_xmit - transmit packet callback | |
2055 | * @skb: buffer to transmit | |
2056 | * @dev: network device | |
2057 | * | |
2058 | * Called by the networ layer to request a packet is queued to | |
2059 | * the velocity. Returns zero on success. | |
2060 | */ | |
6aa20a22 | 2061 | |
1da177e4 LT |
2062 | static int velocity_xmit(struct sk_buff *skb, struct net_device *dev) |
2063 | { | |
8ab6f3f7 | 2064 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
2065 | int qnum = 0; |
2066 | struct tx_desc *td_ptr; | |
2067 | struct velocity_td_info *tdinfo; | |
2068 | unsigned long flags; | |
2069 | int index; | |
2070 | ||
2071 | int pktlen = skb->len; | |
2072 | ||
364c6bad HX |
2073 | #ifdef VELOCITY_ZERO_COPY_SUPPORT |
2074 | if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) { | |
2075 | kfree_skb(skb); | |
2076 | return 0; | |
2077 | } | |
2078 | #endif | |
2079 | ||
1da177e4 LT |
2080 | spin_lock_irqsave(&vptr->lock, flags); |
2081 | ||
2082 | index = vptr->td_curr[qnum]; | |
2083 | td_ptr = &(vptr->td_rings[qnum][index]); | |
2084 | tdinfo = &(vptr->td_infos[qnum][index]); | |
2085 | ||
2086 | td_ptr->tdesc1.TCPLS = TCPLS_NORMAL; | |
2087 | td_ptr->tdesc1.TCR = TCR0_TIC; | |
2088 | td_ptr->td_buf[0].queue = 0; | |
2089 | ||
2090 | /* | |
6aa20a22 | 2091 | * Pad short frames. |
1da177e4 LT |
2092 | */ |
2093 | if (pktlen < ETH_ZLEN) { | |
2094 | /* Cannot occur until ZC support */ | |
1da177e4 | 2095 | pktlen = ETH_ZLEN; |
d626f62b | 2096 | skb_copy_from_linear_data(skb, tdinfo->buf, skb->len); |
1da177e4 LT |
2097 | memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len); |
2098 | tdinfo->skb = skb; | |
2099 | tdinfo->skb_dma[0] = tdinfo->buf_dma; | |
2100 | td_ptr->tdesc0.pktsize = pktlen; | |
2101 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); | |
2102 | td_ptr->td_buf[0].pa_high = 0; | |
2103 | td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; | |
2104 | tdinfo->nskb_dma = 1; | |
2105 | td_ptr->tdesc1.CMDZ = 2; | |
2106 | } else | |
2107 | #ifdef VELOCITY_ZERO_COPY_SUPPORT | |
2108 | if (skb_shinfo(skb)->nr_frags > 0) { | |
2109 | int nfrags = skb_shinfo(skb)->nr_frags; | |
2110 | tdinfo->skb = skb; | |
2111 | if (nfrags > 6) { | |
d626f62b | 2112 | skb_copy_from_linear_data(skb, tdinfo->buf, skb->len); |
1da177e4 | 2113 | tdinfo->skb_dma[0] = tdinfo->buf_dma; |
6aa20a22 | 2114 | td_ptr->tdesc0.pktsize = |
1da177e4 LT |
2115 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); |
2116 | td_ptr->td_buf[0].pa_high = 0; | |
2117 | td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; | |
2118 | tdinfo->nskb_dma = 1; | |
2119 | td_ptr->tdesc1.CMDZ = 2; | |
2120 | } else { | |
2121 | int i = 0; | |
2122 | tdinfo->nskb_dma = 0; | |
2123 | tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE); | |
2124 | ||
2125 | td_ptr->tdesc0.pktsize = pktlen; | |
2126 | ||
2127 | /* FIXME: support 48bit DMA later */ | |
2128 | td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma); | |
2129 | td_ptr->td_buf[i].pa_high = 0; | |
2130 | td_ptr->td_buf[i].bufsize = skb->len->skb->data_len; | |
2131 | ||
2132 | for (i = 0; i < nfrags; i++) { | |
2133 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
2134 | void *addr = ((void *) page_address(frag->page + frag->page_offset)); | |
2135 | ||
2136 | tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE); | |
2137 | ||
2138 | td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]); | |
2139 | td_ptr->td_buf[i + 1].pa_high = 0; | |
2140 | td_ptr->td_buf[i + 1].bufsize = frag->size; | |
2141 | } | |
2142 | tdinfo->nskb_dma = i - 1; | |
2143 | td_ptr->tdesc1.CMDZ = i; | |
2144 | } | |
2145 | ||
2146 | } else | |
2147 | #endif | |
2148 | { | |
2149 | /* | |
2150 | * Map the linear network buffer into PCI space and | |
2151 | * add it to the transmit ring. | |
2152 | */ | |
2153 | tdinfo->skb = skb; | |
2154 | tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); | |
2155 | td_ptr->tdesc0.pktsize = pktlen; | |
2156 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); | |
2157 | td_ptr->td_buf[0].pa_high = 0; | |
2158 | td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize; | |
2159 | tdinfo->nskb_dma = 1; | |
2160 | td_ptr->tdesc1.CMDZ = 2; | |
2161 | } | |
2162 | ||
501e4d24 SH |
2163 | if (vptr->vlgrp && vlan_tx_tag_present(skb)) { |
2164 | td_ptr->tdesc1.pqinf.VID = vlan_tx_tag_get(skb); | |
1da177e4 LT |
2165 | td_ptr->tdesc1.pqinf.priority = 0; |
2166 | td_ptr->tdesc1.pqinf.CFI = 0; | |
2167 | td_ptr->tdesc1.TCR |= TCR0_VETAG; | |
2168 | } | |
2169 | ||
2170 | /* | |
2171 | * Handle hardware checksum | |
2172 | */ | |
2173 | if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM) | |
84fa7933 | 2174 | && (skb->ip_summed == CHECKSUM_PARTIAL)) { |
eddc9ec5 | 2175 | const struct iphdr *ip = ip_hdr(skb); |
1da177e4 LT |
2176 | if (ip->protocol == IPPROTO_TCP) |
2177 | td_ptr->tdesc1.TCR |= TCR0_TCPCK; | |
2178 | else if (ip->protocol == IPPROTO_UDP) | |
2179 | td_ptr->tdesc1.TCR |= (TCR0_UDPCK); | |
2180 | td_ptr->tdesc1.TCR |= TCR0_IPCK; | |
2181 | } | |
2182 | { | |
2183 | ||
2184 | int prev = index - 1; | |
2185 | ||
2186 | if (prev < 0) | |
2187 | prev = vptr->options.numtx - 1; | |
2188 | td_ptr->tdesc0.owner = OWNED_BY_NIC; | |
2189 | vptr->td_used[qnum]++; | |
2190 | vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx; | |
2191 | ||
2192 | if (AVAIL_TD(vptr, qnum) < 1) | |
2193 | netif_stop_queue(dev); | |
2194 | ||
2195 | td_ptr = &(vptr->td_rings[qnum][prev]); | |
2196 | td_ptr->td_buf[0].queue = 1; | |
2197 | mac_tx_queue_wake(vptr->mac_regs, qnum); | |
2198 | } | |
2199 | dev->trans_start = jiffies; | |
2200 | spin_unlock_irqrestore(&vptr->lock, flags); | |
2201 | return 0; | |
2202 | } | |
2203 | ||
2204 | /** | |
2205 | * velocity_intr - interrupt callback | |
2206 | * @irq: interrupt number | |
2207 | * @dev_instance: interrupting device | |
1da177e4 LT |
2208 | * |
2209 | * Called whenever an interrupt is generated by the velocity | |
2210 | * adapter IRQ line. We may not be the source of the interrupt | |
2211 | * and need to identify initially if we are, and if not exit as | |
2212 | * efficiently as possible. | |
2213 | */ | |
6aa20a22 | 2214 | |
7d12e780 | 2215 | static int velocity_intr(int irq, void *dev_instance) |
1da177e4 LT |
2216 | { |
2217 | struct net_device *dev = dev_instance; | |
8ab6f3f7 | 2218 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
2219 | u32 isr_status; |
2220 | int max_count = 0; | |
2221 | ||
2222 | ||
2223 | spin_lock(&vptr->lock); | |
2224 | isr_status = mac_read_isr(vptr->mac_regs); | |
2225 | ||
2226 | /* Not us ? */ | |
2227 | if (isr_status == 0) { | |
2228 | spin_unlock(&vptr->lock); | |
2229 | return IRQ_NONE; | |
2230 | } | |
2231 | ||
2232 | mac_disable_int(vptr->mac_regs); | |
2233 | ||
2234 | /* | |
2235 | * Keep processing the ISR until we have completed | |
2236 | * processing and the isr_status becomes zero | |
2237 | */ | |
6aa20a22 | 2238 | |
1da177e4 LT |
2239 | while (isr_status != 0) { |
2240 | mac_write_isr(vptr->mac_regs, isr_status); | |
2241 | if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) | |
2242 | velocity_error(vptr, isr_status); | |
2243 | if (isr_status & (ISR_PRXI | ISR_PPRXI)) | |
2244 | max_count += velocity_rx_srv(vptr, isr_status); | |
2245 | if (isr_status & (ISR_PTXI | ISR_PPTXI)) | |
2246 | max_count += velocity_tx_srv(vptr, isr_status); | |
2247 | isr_status = mac_read_isr(vptr->mac_regs); | |
2248 | if (max_count > vptr->options.int_works) | |
2249 | { | |
6aa20a22 | 2250 | printk(KERN_WARNING "%s: excessive work at interrupt.\n", |
1da177e4 LT |
2251 | dev->name); |
2252 | max_count = 0; | |
2253 | } | |
2254 | } | |
2255 | spin_unlock(&vptr->lock); | |
2256 | mac_enable_int(vptr->mac_regs); | |
2257 | return IRQ_HANDLED; | |
2258 | ||
2259 | } | |
2260 | ||
2261 | ||
2262 | /** | |
2263 | * velocity_set_multi - filter list change callback | |
2264 | * @dev: network device | |
2265 | * | |
2266 | * Called by the network layer when the filter lists need to change | |
2267 | * for a velocity adapter. Reload the CAMs with the new address | |
2268 | * filter ruleset. | |
2269 | */ | |
6aa20a22 | 2270 | |
1da177e4 LT |
2271 | static void velocity_set_multi(struct net_device *dev) |
2272 | { | |
8ab6f3f7 | 2273 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
2274 | struct mac_regs __iomem * regs = vptr->mac_regs; |
2275 | u8 rx_mode; | |
2276 | int i; | |
2277 | struct dev_mc_list *mclist; | |
2278 | ||
2279 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ | |
1da177e4 LT |
2280 | writel(0xffffffff, ®s->MARCAM[0]); |
2281 | writel(0xffffffff, ®s->MARCAM[4]); | |
2282 | rx_mode = (RCR_AM | RCR_AB | RCR_PROM); | |
2283 | } else if ((dev->mc_count > vptr->multicast_limit) | |
2284 | || (dev->flags & IFF_ALLMULTI)) { | |
2285 | writel(0xffffffff, ®s->MARCAM[0]); | |
2286 | writel(0xffffffff, ®s->MARCAM[4]); | |
2287 | rx_mode = (RCR_AM | RCR_AB); | |
2288 | } else { | |
2289 | int offset = MCAM_SIZE - vptr->multicast_limit; | |
01faccbf | 2290 | mac_get_cam_mask(regs, vptr->mCAMmask); |
1da177e4 LT |
2291 | |
2292 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) { | |
01faccbf | 2293 | mac_set_cam(regs, i + offset, mclist->dmi_addr); |
1da177e4 LT |
2294 | vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7); |
2295 | } | |
2296 | ||
01faccbf | 2297 | mac_set_cam_mask(regs, vptr->mCAMmask); |
1da177e4 LT |
2298 | rx_mode = (RCR_AM | RCR_AB); |
2299 | } | |
2300 | if (dev->mtu > 1500) | |
2301 | rx_mode |= RCR_AL; | |
2302 | ||
2303 | BYTE_REG_BITS_ON(rx_mode, ®s->RCR); | |
2304 | ||
2305 | } | |
2306 | ||
2307 | /** | |
2308 | * velocity_get_status - statistics callback | |
2309 | * @dev: network device | |
2310 | * | |
2311 | * Callback from the network layer to allow driver statistics | |
2312 | * to be resynchronized with hardware collected state. In the | |
2313 | * case of the velocity we need to pull the MIB counters from | |
2314 | * the hardware into the counters before letting the network | |
2315 | * layer display them. | |
2316 | */ | |
6aa20a22 | 2317 | |
1da177e4 LT |
2318 | static struct net_device_stats *velocity_get_stats(struct net_device *dev) |
2319 | { | |
8ab6f3f7 | 2320 | struct velocity_info *vptr = netdev_priv(dev); |
6aa20a22 | 2321 | |
1da177e4 LT |
2322 | /* If the hardware is down, don't touch MII */ |
2323 | if(!netif_running(dev)) | |
2324 | return &vptr->stats; | |
2325 | ||
2326 | spin_lock_irq(&vptr->lock); | |
2327 | velocity_update_hw_mibs(vptr); | |
2328 | spin_unlock_irq(&vptr->lock); | |
2329 | ||
2330 | vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts]; | |
2331 | vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts]; | |
2332 | vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors]; | |
2333 | ||
2334 | // unsigned long rx_dropped; /* no space in linux buffers */ | |
2335 | vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions]; | |
2336 | /* detailed rx_errors: */ | |
2337 | // unsigned long rx_length_errors; | |
2338 | // unsigned long rx_over_errors; /* receiver ring buff overflow */ | |
2339 | vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE]; | |
2340 | // unsigned long rx_frame_errors; /* recv'd frame alignment error */ | |
2341 | // unsigned long rx_fifo_errors; /* recv'r fifo overrun */ | |
2342 | // unsigned long rx_missed_errors; /* receiver missed packet */ | |
2343 | ||
2344 | /* detailed tx_errors */ | |
2345 | // unsigned long tx_fifo_errors; | |
2346 | ||
2347 | return &vptr->stats; | |
2348 | } | |
2349 | ||
2350 | ||
2351 | /** | |
2352 | * velocity_ioctl - ioctl entry point | |
2353 | * @dev: network device | |
2354 | * @rq: interface request ioctl | |
2355 | * @cmd: command code | |
2356 | * | |
2357 | * Called when the user issues an ioctl request to the network | |
2358 | * device in question. The velocity interface supports MII. | |
2359 | */ | |
6aa20a22 | 2360 | |
1da177e4 LT |
2361 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
2362 | { | |
8ab6f3f7 | 2363 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
2364 | int ret; |
2365 | ||
2366 | /* If we are asked for information and the device is power | |
2367 | saving then we need to bring the device back up to talk to it */ | |
6aa20a22 | 2368 | |
1da177e4 LT |
2369 | if (!netif_running(dev)) |
2370 | pci_set_power_state(vptr->pdev, PCI_D0); | |
6aa20a22 | 2371 | |
1da177e4 LT |
2372 | switch (cmd) { |
2373 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ | |
2374 | case SIOCGMIIREG: /* Read MII PHY register. */ | |
2375 | case SIOCSMIIREG: /* Write to MII PHY register. */ | |
2376 | ret = velocity_mii_ioctl(dev, rq, cmd); | |
2377 | break; | |
2378 | ||
2379 | default: | |
2380 | ret = -EOPNOTSUPP; | |
2381 | } | |
2382 | if (!netif_running(dev)) | |
2383 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
6aa20a22 JG |
2384 | |
2385 | ||
1da177e4 LT |
2386 | return ret; |
2387 | } | |
2388 | ||
2389 | /* | |
2390 | * Definition for our device driver. The PCI layer interface | |
2391 | * uses this to handle all our card discover and plugging | |
2392 | */ | |
6aa20a22 | 2393 | |
1da177e4 LT |
2394 | static struct pci_driver velocity_driver = { |
2395 | .name = VELOCITY_NAME, | |
2396 | .id_table = velocity_id_table, | |
2397 | .probe = velocity_found1, | |
2398 | .remove = __devexit_p(velocity_remove1), | |
2399 | #ifdef CONFIG_PM | |
2400 | .suspend = velocity_suspend, | |
2401 | .resume = velocity_resume, | |
2402 | #endif | |
2403 | }; | |
2404 | ||
2405 | /** | |
2406 | * velocity_init_module - load time function | |
2407 | * | |
2408 | * Called when the velocity module is loaded. The PCI driver | |
2409 | * is registered with the PCI layer, and in turn will call | |
2410 | * the probe functions for each velocity adapter installed | |
2411 | * in the system. | |
2412 | */ | |
6aa20a22 | 2413 | |
1da177e4 LT |
2414 | static int __init velocity_init_module(void) |
2415 | { | |
2416 | int ret; | |
2417 | ||
2418 | velocity_register_notifier(); | |
29917620 | 2419 | ret = pci_register_driver(&velocity_driver); |
1da177e4 LT |
2420 | if (ret < 0) |
2421 | velocity_unregister_notifier(); | |
2422 | return ret; | |
2423 | } | |
2424 | ||
2425 | /** | |
2426 | * velocity_cleanup - module unload | |
2427 | * | |
2428 | * When the velocity hardware is unloaded this function is called. | |
6aa20a22 | 2429 | * It will clean up the notifiers and the unregister the PCI |
1da177e4 LT |
2430 | * driver interface for this hardware. This in turn cleans up |
2431 | * all discovered interfaces before returning from the function | |
2432 | */ | |
6aa20a22 | 2433 | |
1da177e4 LT |
2434 | static void __exit velocity_cleanup_module(void) |
2435 | { | |
2436 | velocity_unregister_notifier(); | |
2437 | pci_unregister_driver(&velocity_driver); | |
2438 | } | |
2439 | ||
2440 | module_init(velocity_init_module); | |
2441 | module_exit(velocity_cleanup_module); | |
2442 | ||
2443 | ||
2444 | /* | |
2445 | * MII access , media link mode setting functions | |
2446 | */ | |
6aa20a22 JG |
2447 | |
2448 | ||
1da177e4 LT |
2449 | /** |
2450 | * mii_init - set up MII | |
2451 | * @vptr: velocity adapter | |
2452 | * @mii_status: links tatus | |
2453 | * | |
2454 | * Set up the PHY for the current link state. | |
2455 | */ | |
6aa20a22 | 2456 | |
1da177e4 LT |
2457 | static void mii_init(struct velocity_info *vptr, u32 mii_status) |
2458 | { | |
2459 | u16 BMCR; | |
2460 | ||
2461 | switch (PHYID_GET_PHY_ID(vptr->phy_id)) { | |
2462 | case PHYID_CICADA_CS8201: | |
2463 | /* | |
2464 | * Reset to hardware default | |
2465 | */ | |
2466 | MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); | |
2467 | /* | |
2468 | * Turn on ECHODIS bit in NWay-forced full mode and turn it | |
6aa20a22 | 2469 | * off it in NWay-forced half mode for NWay-forced v.s. |
1da177e4 LT |
2470 | * legacy-forced issue. |
2471 | */ | |
2472 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
2473 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
2474 | else | |
2475 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
2476 | /* | |
2477 | * Turn on Link/Activity LED enable bit for CIS8201 | |
2478 | */ | |
2479 | MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs); | |
2480 | break; | |
2481 | case PHYID_VT3216_32BIT: | |
2482 | case PHYID_VT3216_64BIT: | |
2483 | /* | |
2484 | * Reset to hardware default | |
2485 | */ | |
2486 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); | |
2487 | /* | |
2488 | * Turn on ECHODIS bit in NWay-forced full mode and turn it | |
6aa20a22 | 2489 | * off it in NWay-forced half mode for NWay-forced v.s. |
1da177e4 LT |
2490 | * legacy-forced issue |
2491 | */ | |
2492 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) | |
2493 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
2494 | else | |
2495 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); | |
2496 | break; | |
2497 | ||
2498 | case PHYID_MARVELL_1000: | |
2499 | case PHYID_MARVELL_1000S: | |
2500 | /* | |
6aa20a22 | 2501 | * Assert CRS on Transmit |
1da177e4 LT |
2502 | */ |
2503 | MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs); | |
2504 | /* | |
6aa20a22 | 2505 | * Reset to hardware default |
1da177e4 LT |
2506 | */ |
2507 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); | |
2508 | break; | |
2509 | default: | |
2510 | ; | |
2511 | } | |
2512 | velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR); | |
2513 | if (BMCR & BMCR_ISO) { | |
2514 | BMCR &= ~BMCR_ISO; | |
2515 | velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR); | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | /** | |
2520 | * safe_disable_mii_autopoll - autopoll off | |
2521 | * @regs: velocity registers | |
2522 | * | |
2523 | * Turn off the autopoll and wait for it to disable on the chip | |
2524 | */ | |
6aa20a22 | 2525 | |
1da177e4 LT |
2526 | static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs) |
2527 | { | |
2528 | u16 ww; | |
2529 | ||
2530 | /* turn off MAUTO */ | |
2531 | writeb(0, ®s->MIICR); | |
2532 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
2533 | udelay(1); | |
2534 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
2535 | break; | |
2536 | } | |
2537 | } | |
2538 | ||
2539 | /** | |
2540 | * enable_mii_autopoll - turn on autopolling | |
2541 | * @regs: velocity registers | |
2542 | * | |
2543 | * Enable the MII link status autopoll feature on the Velocity | |
2544 | * hardware. Wait for it to enable. | |
2545 | */ | |
2546 | ||
2547 | static void enable_mii_autopoll(struct mac_regs __iomem * regs) | |
2548 | { | |
2549 | int ii; | |
2550 | ||
2551 | writeb(0, &(regs->MIICR)); | |
2552 | writeb(MIIADR_SWMPL, ®s->MIIADR); | |
2553 | ||
2554 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { | |
2555 | udelay(1); | |
2556 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
2557 | break; | |
2558 | } | |
2559 | ||
2560 | writeb(MIICR_MAUTO, ®s->MIICR); | |
2561 | ||
2562 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { | |
2563 | udelay(1); | |
2564 | if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) | |
2565 | break; | |
2566 | } | |
2567 | ||
2568 | } | |
2569 | ||
2570 | /** | |
2571 | * velocity_mii_read - read MII data | |
2572 | * @regs: velocity registers | |
2573 | * @index: MII register index | |
2574 | * @data: buffer for received data | |
2575 | * | |
2576 | * Perform a single read of an MII 16bit register. Returns zero | |
2577 | * on success or -ETIMEDOUT if the PHY did not respond. | |
2578 | */ | |
6aa20a22 | 2579 | |
1da177e4 LT |
2580 | static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data) |
2581 | { | |
2582 | u16 ww; | |
2583 | ||
2584 | /* | |
2585 | * Disable MIICR_MAUTO, so that mii addr can be set normally | |
2586 | */ | |
2587 | safe_disable_mii_autopoll(regs); | |
2588 | ||
2589 | writeb(index, ®s->MIIADR); | |
2590 | ||
2591 | BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR); | |
2592 | ||
2593 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
2594 | if (!(readb(®s->MIICR) & MIICR_RCMD)) | |
2595 | break; | |
2596 | } | |
2597 | ||
2598 | *data = readw(®s->MIIDATA); | |
2599 | ||
2600 | enable_mii_autopoll(regs); | |
2601 | if (ww == W_MAX_TIMEOUT) | |
2602 | return -ETIMEDOUT; | |
2603 | return 0; | |
2604 | } | |
2605 | ||
2606 | /** | |
2607 | * velocity_mii_write - write MII data | |
2608 | * @regs: velocity registers | |
2609 | * @index: MII register index | |
2610 | * @data: 16bit data for the MII register | |
2611 | * | |
2612 | * Perform a single write to an MII 16bit register. Returns zero | |
2613 | * on success or -ETIMEDOUT if the PHY did not respond. | |
2614 | */ | |
6aa20a22 | 2615 | |
1da177e4 LT |
2616 | static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data) |
2617 | { | |
2618 | u16 ww; | |
2619 | ||
2620 | /* | |
2621 | * Disable MIICR_MAUTO, so that mii addr can be set normally | |
2622 | */ | |
2623 | safe_disable_mii_autopoll(regs); | |
2624 | ||
2625 | /* MII reg offset */ | |
2626 | writeb(mii_addr, ®s->MIIADR); | |
2627 | /* set MII data */ | |
2628 | writew(data, ®s->MIIDATA); | |
2629 | ||
2630 | /* turn on MIICR_WCMD */ | |
2631 | BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR); | |
2632 | ||
2633 | /* W_MAX_TIMEOUT is the timeout period */ | |
2634 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { | |
2635 | udelay(5); | |
2636 | if (!(readb(®s->MIICR) & MIICR_WCMD)) | |
2637 | break; | |
2638 | } | |
2639 | enable_mii_autopoll(regs); | |
2640 | ||
2641 | if (ww == W_MAX_TIMEOUT) | |
2642 | return -ETIMEDOUT; | |
2643 | return 0; | |
2644 | } | |
2645 | ||
2646 | /** | |
2647 | * velocity_get_opt_media_mode - get media selection | |
2648 | * @vptr: velocity adapter | |
2649 | * | |
2650 | * Get the media mode stored in EEPROM or module options and load | |
2651 | * mii_status accordingly. The requested link state information | |
2652 | * is also returned. | |
2653 | */ | |
6aa20a22 | 2654 | |
1da177e4 LT |
2655 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr) |
2656 | { | |
2657 | u32 status = 0; | |
2658 | ||
2659 | switch (vptr->options.spd_dpx) { | |
2660 | case SPD_DPX_AUTO: | |
2661 | status = VELOCITY_AUTONEG_ENABLE; | |
2662 | break; | |
2663 | case SPD_DPX_100_FULL: | |
2664 | status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL; | |
2665 | break; | |
2666 | case SPD_DPX_10_FULL: | |
2667 | status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL; | |
2668 | break; | |
2669 | case SPD_DPX_100_HALF: | |
2670 | status = VELOCITY_SPEED_100; | |
2671 | break; | |
2672 | case SPD_DPX_10_HALF: | |
2673 | status = VELOCITY_SPEED_10; | |
2674 | break; | |
2675 | } | |
2676 | vptr->mii_status = status; | |
2677 | return status; | |
2678 | } | |
2679 | ||
2680 | /** | |
2681 | * mii_set_auto_on - autonegotiate on | |
2682 | * @vptr: velocity | |
2683 | * | |
2684 | * Enable autonegotation on this interface | |
2685 | */ | |
6aa20a22 | 2686 | |
1da177e4 LT |
2687 | static void mii_set_auto_on(struct velocity_info *vptr) |
2688 | { | |
2689 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs)) | |
2690 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); | |
2691 | else | |
2692 | MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); | |
2693 | } | |
2694 | ||
2695 | ||
2696 | /* | |
2697 | static void mii_set_auto_off(struct velocity_info * vptr) | |
2698 | { | |
2699 | MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); | |
2700 | } | |
2701 | */ | |
2702 | ||
2703 | /** | |
2704 | * set_mii_flow_control - flow control setup | |
2705 | * @vptr: velocity interface | |
2706 | * | |
2707 | * Set up the flow control on this interface according to | |
2708 | * the supplied user/eeprom options. | |
2709 | */ | |
6aa20a22 | 2710 | |
1da177e4 LT |
2711 | static void set_mii_flow_control(struct velocity_info *vptr) |
2712 | { | |
2713 | /*Enable or Disable PAUSE in ANAR */ | |
2714 | switch (vptr->options.flow_cntl) { | |
2715 | case FLOW_CNTL_TX: | |
2716 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
2717 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
2718 | break; | |
2719 | ||
2720 | case FLOW_CNTL_RX: | |
2721 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
2722 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
2723 | break; | |
2724 | ||
2725 | case FLOW_CNTL_TX_RX: | |
2726 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
2727 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
2728 | break; | |
2729 | ||
2730 | case FLOW_CNTL_DISABLE: | |
2731 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); | |
2732 | MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); | |
2733 | break; | |
2734 | default: | |
2735 | break; | |
2736 | } | |
2737 | } | |
2738 | ||
2739 | /** | |
2740 | * velocity_set_media_mode - set media mode | |
2741 | * @mii_status: old MII link state | |
2742 | * | |
2743 | * Check the media link state and configure the flow control | |
2744 | * PHY and also velocity hardware setup accordingly. In particular | |
2745 | * we need to set up CD polling and frame bursting. | |
2746 | */ | |
6aa20a22 | 2747 | |
1da177e4 LT |
2748 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) |
2749 | { | |
2750 | u32 curr_status; | |
2751 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
2752 | ||
2753 | vptr->mii_status = mii_check_media_mode(vptr->mac_regs); | |
2754 | curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL); | |
2755 | ||
2756 | /* Set mii link status */ | |
2757 | set_mii_flow_control(vptr); | |
2758 | ||
2759 | /* | |
2760 | Check if new status is consisent with current status | |
2761 | if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) | |
2762 | || (mii_status==curr_status)) { | |
2763 | vptr->mii_status=mii_check_media_mode(vptr->mac_regs); | |
2764 | vptr->mii_status=check_connection_type(vptr->mac_regs); | |
2765 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); | |
2766 | return 0; | |
2767 | } | |
2768 | */ | |
2769 | ||
2770 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) { | |
2771 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); | |
2772 | } | |
2773 | ||
2774 | /* | |
2775 | * If connection type is AUTO | |
2776 | */ | |
2777 | if (mii_status & VELOCITY_AUTONEG_ENABLE) { | |
2778 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n"); | |
2779 | /* clear force MAC mode bit */ | |
2780 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
2781 | /* set duplex mode of MAC according to duplex mode of MII */ | |
2782 | MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs); | |
2783 | MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); | |
2784 | MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); | |
2785 | ||
2786 | /* enable AUTO-NEGO mode */ | |
2787 | mii_set_auto_on(vptr); | |
2788 | } else { | |
2789 | u16 ANAR; | |
2790 | u8 CHIPGCR; | |
2791 | ||
2792 | /* | |
2793 | * 1. if it's 3119, disable frame bursting in halfduplex mode | |
2794 | * and enable it in fullduplex mode | |
2795 | * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR | |
2796 | * 3. only enable CD heart beat counter in 10HD mode | |
2797 | */ | |
2798 | ||
2799 | /* set force MAC mode bit */ | |
2800 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
2801 | ||
2802 | CHIPGCR = readb(®s->CHIPGCR); | |
2803 | CHIPGCR &= ~CHIPGCR_FCGMII; | |
2804 | ||
2805 | if (mii_status & VELOCITY_DUPLEX_FULL) { | |
2806 | CHIPGCR |= CHIPGCR_FCFDX; | |
2807 | writeb(CHIPGCR, ®s->CHIPGCR); | |
2808 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n"); | |
2809 | if (vptr->rev_id < REV_ID_VT3216_A0) | |
2810 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); | |
2811 | } else { | |
2812 | CHIPGCR &= ~CHIPGCR_FCFDX; | |
2813 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n"); | |
2814 | writeb(CHIPGCR, ®s->CHIPGCR); | |
2815 | if (vptr->rev_id < REV_ID_VT3216_A0) | |
2816 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); | |
2817 | } | |
2818 | ||
2819 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); | |
2820 | ||
2821 | if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) { | |
2822 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); | |
2823 | } else { | |
2824 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); | |
2825 | } | |
2826 | /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */ | |
2827 | velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR); | |
2828 | ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)); | |
2829 | if (mii_status & VELOCITY_SPEED_100) { | |
2830 | if (mii_status & VELOCITY_DUPLEX_FULL) | |
2831 | ANAR |= ANAR_TXFD; | |
2832 | else | |
2833 | ANAR |= ANAR_TX; | |
2834 | } else { | |
2835 | if (mii_status & VELOCITY_DUPLEX_FULL) | |
2836 | ANAR |= ANAR_10FD; | |
2837 | else | |
2838 | ANAR |= ANAR_10; | |
2839 | } | |
2840 | velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR); | |
2841 | /* enable AUTO-NEGO mode */ | |
2842 | mii_set_auto_on(vptr); | |
2843 | /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */ | |
2844 | } | |
2845 | /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */ | |
2846 | /* vptr->mii_status=check_connection_type(vptr->mac_regs); */ | |
2847 | return VELOCITY_LINK_CHANGE; | |
2848 | } | |
2849 | ||
2850 | /** | |
2851 | * mii_check_media_mode - check media state | |
2852 | * @regs: velocity registers | |
2853 | * | |
2854 | * Check the current MII status and determine the link status | |
2855 | * accordingly | |
2856 | */ | |
6aa20a22 | 2857 | |
1da177e4 LT |
2858 | static u32 mii_check_media_mode(struct mac_regs __iomem * regs) |
2859 | { | |
2860 | u32 status = 0; | |
2861 | u16 ANAR; | |
2862 | ||
2863 | if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs)) | |
2864 | status |= VELOCITY_LINK_FAIL; | |
2865 | ||
2866 | if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs)) | |
2867 | status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; | |
2868 | else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs)) | |
2869 | status |= (VELOCITY_SPEED_1000); | |
2870 | else { | |
2871 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); | |
2872 | if (ANAR & ANAR_TXFD) | |
2873 | status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL); | |
2874 | else if (ANAR & ANAR_TX) | |
2875 | status |= VELOCITY_SPEED_100; | |
2876 | else if (ANAR & ANAR_10FD) | |
2877 | status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL); | |
2878 | else | |
2879 | status |= (VELOCITY_SPEED_10); | |
2880 | } | |
2881 | ||
2882 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { | |
2883 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); | |
2884 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) | |
2885 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { | |
2886 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) | |
2887 | status |= VELOCITY_AUTONEG_ENABLE; | |
2888 | } | |
2889 | } | |
2890 | ||
2891 | return status; | |
2892 | } | |
2893 | ||
2894 | static u32 check_connection_type(struct mac_regs __iomem * regs) | |
2895 | { | |
2896 | u32 status = 0; | |
2897 | u8 PHYSR0; | |
2898 | u16 ANAR; | |
2899 | PHYSR0 = readb(®s->PHYSR0); | |
2900 | ||
2901 | /* | |
2902 | if (!(PHYSR0 & PHYSR0_LINKGD)) | |
2903 | status|=VELOCITY_LINK_FAIL; | |
2904 | */ | |
2905 | ||
2906 | if (PHYSR0 & PHYSR0_FDPX) | |
2907 | status |= VELOCITY_DUPLEX_FULL; | |
2908 | ||
2909 | if (PHYSR0 & PHYSR0_SPDG) | |
2910 | status |= VELOCITY_SPEED_1000; | |
59b693fb | 2911 | else if (PHYSR0 & PHYSR0_SPD10) |
1da177e4 LT |
2912 | status |= VELOCITY_SPEED_10; |
2913 | else | |
2914 | status |= VELOCITY_SPEED_100; | |
2915 | ||
2916 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { | |
2917 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); | |
2918 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) | |
2919 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { | |
2920 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) | |
2921 | status |= VELOCITY_AUTONEG_ENABLE; | |
2922 | } | |
2923 | } | |
2924 | ||
2925 | return status; | |
2926 | } | |
2927 | ||
2928 | /** | |
2929 | * enable_flow_control_ability - flow control | |
2930 | * @vptr: veloity to configure | |
2931 | * | |
2932 | * Set up flow control according to the flow control options | |
2933 | * determined by the eeprom/configuration. | |
2934 | */ | |
2935 | ||
2936 | static void enable_flow_control_ability(struct velocity_info *vptr) | |
2937 | { | |
2938 | ||
2939 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
2940 | ||
2941 | switch (vptr->options.flow_cntl) { | |
2942 | ||
2943 | case FLOW_CNTL_DEFAULT: | |
2944 | if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0)) | |
2945 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
2946 | else | |
2947 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
2948 | ||
2949 | if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0)) | |
2950 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
2951 | else | |
2952 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
2953 | break; | |
2954 | ||
2955 | case FLOW_CNTL_TX: | |
2956 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
2957 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
2958 | break; | |
2959 | ||
2960 | case FLOW_CNTL_RX: | |
2961 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
2962 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
2963 | break; | |
2964 | ||
2965 | case FLOW_CNTL_TX_RX: | |
2966 | writel(CR0_FDXTFCEN, ®s->CR0Set); | |
2967 | writel(CR0_FDXRFCEN, ®s->CR0Set); | |
2968 | break; | |
2969 | ||
2970 | case FLOW_CNTL_DISABLE: | |
2971 | writel(CR0_FDXRFCEN, ®s->CR0Clr); | |
2972 | writel(CR0_FDXTFCEN, ®s->CR0Clr); | |
2973 | break; | |
2974 | ||
2975 | default: | |
2976 | break; | |
2977 | } | |
2978 | ||
2979 | } | |
2980 | ||
2981 | ||
2982 | /** | |
2983 | * velocity_ethtool_up - pre hook for ethtool | |
2984 | * @dev: network device | |
2985 | * | |
2986 | * Called before an ethtool operation. We need to make sure the | |
2987 | * chip is out of D3 state before we poke at it. | |
2988 | */ | |
6aa20a22 | 2989 | |
1da177e4 LT |
2990 | static int velocity_ethtool_up(struct net_device *dev) |
2991 | { | |
8ab6f3f7 | 2992 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
2993 | if (!netif_running(dev)) |
2994 | pci_set_power_state(vptr->pdev, PCI_D0); | |
2995 | return 0; | |
6aa20a22 | 2996 | } |
1da177e4 LT |
2997 | |
2998 | /** | |
2999 | * velocity_ethtool_down - post hook for ethtool | |
3000 | * @dev: network device | |
3001 | * | |
3002 | * Called after an ethtool operation. Restore the chip back to D3 | |
3003 | * state if it isn't running. | |
3004 | */ | |
6aa20a22 | 3005 | |
1da177e4 LT |
3006 | static void velocity_ethtool_down(struct net_device *dev) |
3007 | { | |
8ab6f3f7 | 3008 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3009 | if (!netif_running(dev)) |
3010 | pci_set_power_state(vptr->pdev, PCI_D3hot); | |
3011 | } | |
3012 | ||
3013 | static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
3014 | { | |
8ab6f3f7 | 3015 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3016 | struct mac_regs __iomem * regs = vptr->mac_regs; |
3017 | u32 status; | |
3018 | status = check_connection_type(vptr->mac_regs); | |
3019 | ||
59b693fb JC |
3020 | cmd->supported = SUPPORTED_TP | |
3021 | SUPPORTED_Autoneg | | |
3022 | SUPPORTED_10baseT_Half | | |
3023 | SUPPORTED_10baseT_Full | | |
3024 | SUPPORTED_100baseT_Half | | |
3025 | SUPPORTED_100baseT_Full | | |
3026 | SUPPORTED_1000baseT_Half | | |
3027 | SUPPORTED_1000baseT_Full; | |
3028 | if (status & VELOCITY_SPEED_1000) | |
3029 | cmd->speed = SPEED_1000; | |
3030 | else if (status & VELOCITY_SPEED_100) | |
1da177e4 LT |
3031 | cmd->speed = SPEED_100; |
3032 | else | |
3033 | cmd->speed = SPEED_10; | |
3034 | cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE; | |
3035 | cmd->port = PORT_TP; | |
3036 | cmd->transceiver = XCVR_INTERNAL; | |
3037 | cmd->phy_address = readb(®s->MIIADR) & 0x1F; | |
3038 | ||
3039 | if (status & VELOCITY_DUPLEX_FULL) | |
3040 | cmd->duplex = DUPLEX_FULL; | |
3041 | else | |
3042 | cmd->duplex = DUPLEX_HALF; | |
6aa20a22 | 3043 | |
1da177e4 LT |
3044 | return 0; |
3045 | } | |
3046 | ||
3047 | static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
3048 | { | |
8ab6f3f7 | 3049 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3050 | u32 curr_status; |
3051 | u32 new_status = 0; | |
3052 | int ret = 0; | |
6aa20a22 | 3053 | |
1da177e4 LT |
3054 | curr_status = check_connection_type(vptr->mac_regs); |
3055 | curr_status &= (~VELOCITY_LINK_FAIL); | |
3056 | ||
3057 | new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0); | |
3058 | new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0); | |
3059 | new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0); | |
3060 | new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0); | |
3061 | ||
3062 | if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE))) | |
3063 | ret = -EINVAL; | |
3064 | else | |
3065 | velocity_set_media_mode(vptr, new_status); | |
3066 | ||
3067 | return ret; | |
3068 | } | |
3069 | ||
3070 | static u32 velocity_get_link(struct net_device *dev) | |
3071 | { | |
8ab6f3f7 | 3072 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 | 3073 | struct mac_regs __iomem * regs = vptr->mac_regs; |
59b693fb | 3074 | return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0; |
1da177e4 LT |
3075 | } |
3076 | ||
3077 | static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
3078 | { | |
8ab6f3f7 | 3079 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3080 | strcpy(info->driver, VELOCITY_NAME); |
3081 | strcpy(info->version, VELOCITY_VERSION); | |
3082 | strcpy(info->bus_info, pci_name(vptr->pdev)); | |
3083 | } | |
3084 | ||
3085 | static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
3086 | { | |
8ab6f3f7 | 3087 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3088 | wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP; |
3089 | wol->wolopts |= WAKE_MAGIC; | |
3090 | /* | |
3091 | if (vptr->wol_opts & VELOCITY_WOL_PHY) | |
3092 | wol.wolopts|=WAKE_PHY; | |
3093 | */ | |
3094 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) | |
3095 | wol->wolopts |= WAKE_UCAST; | |
3096 | if (vptr->wol_opts & VELOCITY_WOL_ARP) | |
3097 | wol->wolopts |= WAKE_ARP; | |
3098 | memcpy(&wol->sopass, vptr->wol_passwd, 6); | |
3099 | } | |
3100 | ||
3101 | static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
3102 | { | |
8ab6f3f7 | 3103 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3104 | |
3105 | if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP))) | |
3106 | return -EFAULT; | |
3107 | vptr->wol_opts = VELOCITY_WOL_MAGIC; | |
3108 | ||
3109 | /* | |
3110 | if (wol.wolopts & WAKE_PHY) { | |
3111 | vptr->wol_opts|=VELOCITY_WOL_PHY; | |
3112 | vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED; | |
3113 | } | |
3114 | */ | |
3115 | ||
3116 | if (wol->wolopts & WAKE_MAGIC) { | |
3117 | vptr->wol_opts |= VELOCITY_WOL_MAGIC; | |
3118 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3119 | } | |
3120 | if (wol->wolopts & WAKE_UCAST) { | |
3121 | vptr->wol_opts |= VELOCITY_WOL_UCAST; | |
3122 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3123 | } | |
3124 | if (wol->wolopts & WAKE_ARP) { | |
3125 | vptr->wol_opts |= VELOCITY_WOL_ARP; | |
3126 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; | |
3127 | } | |
3128 | memcpy(vptr->wol_passwd, wol->sopass, 6); | |
3129 | return 0; | |
3130 | } | |
3131 | ||
3132 | static u32 velocity_get_msglevel(struct net_device *dev) | |
3133 | { | |
3134 | return msglevel; | |
3135 | } | |
3136 | ||
3137 | static void velocity_set_msglevel(struct net_device *dev, u32 value) | |
3138 | { | |
3139 | msglevel = value; | |
3140 | } | |
3141 | ||
7282d491 | 3142 | static const struct ethtool_ops velocity_ethtool_ops = { |
1da177e4 LT |
3143 | .get_settings = velocity_get_settings, |
3144 | .set_settings = velocity_set_settings, | |
3145 | .get_drvinfo = velocity_get_drvinfo, | |
3146 | .get_wol = velocity_ethtool_get_wol, | |
3147 | .set_wol = velocity_ethtool_set_wol, | |
3148 | .get_msglevel = velocity_get_msglevel, | |
3149 | .set_msglevel = velocity_set_msglevel, | |
3150 | .get_link = velocity_get_link, | |
3151 | .begin = velocity_ethtool_up, | |
3152 | .complete = velocity_ethtool_down | |
3153 | }; | |
3154 | ||
3155 | /** | |
3156 | * velocity_mii_ioctl - MII ioctl handler | |
3157 | * @dev: network device | |
3158 | * @ifr: the ifreq block for the ioctl | |
3159 | * @cmd: the command | |
3160 | * | |
3161 | * Process MII requests made via ioctl from the network layer. These | |
3162 | * are used by tools like kudzu to interrogate the link state of the | |
3163 | * hardware | |
3164 | */ | |
6aa20a22 | 3165 | |
1da177e4 LT |
3166 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
3167 | { | |
8ab6f3f7 | 3168 | struct velocity_info *vptr = netdev_priv(dev); |
1da177e4 LT |
3169 | struct mac_regs __iomem * regs = vptr->mac_regs; |
3170 | unsigned long flags; | |
3171 | struct mii_ioctl_data *miidata = if_mii(ifr); | |
3172 | int err; | |
6aa20a22 | 3173 | |
1da177e4 LT |
3174 | switch (cmd) { |
3175 | case SIOCGMIIPHY: | |
3176 | miidata->phy_id = readb(®s->MIIADR) & 0x1f; | |
3177 | break; | |
3178 | case SIOCGMIIREG: | |
3179 | if (!capable(CAP_NET_ADMIN)) | |
3180 | return -EPERM; | |
3181 | if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0) | |
3182 | return -ETIMEDOUT; | |
3183 | break; | |
3184 | case SIOCSMIIREG: | |
3185 | if (!capable(CAP_NET_ADMIN)) | |
3186 | return -EPERM; | |
3187 | spin_lock_irqsave(&vptr->lock, flags); | |
3188 | err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in); | |
3189 | spin_unlock_irqrestore(&vptr->lock, flags); | |
3190 | check_connection_type(vptr->mac_regs); | |
3191 | if(err) | |
3192 | return err; | |
3193 | break; | |
3194 | default: | |
3195 | return -EOPNOTSUPP; | |
3196 | } | |
3197 | return 0; | |
3198 | } | |
3199 | ||
3200 | #ifdef CONFIG_PM | |
3201 | ||
3202 | /** | |
3203 | * velocity_save_context - save registers | |
6aa20a22 | 3204 | * @vptr: velocity |
1da177e4 LT |
3205 | * @context: buffer for stored context |
3206 | * | |
3207 | * Retrieve the current configuration from the velocity hardware | |
3208 | * and stash it in the context structure, for use by the context | |
3209 | * restore functions. This allows us to save things we need across | |
3210 | * power down states | |
3211 | */ | |
6aa20a22 | 3212 | |
1da177e4 LT |
3213 | static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context) |
3214 | { | |
3215 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
3216 | u16 i; | |
3217 | u8 __iomem *ptr = (u8 __iomem *)regs; | |
3218 | ||
3219 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4) | |
3220 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
3221 | ||
3222 | for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4) | |
3223 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
3224 | ||
3225 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) | |
3226 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); | |
3227 | ||
3228 | } | |
3229 | ||
3230 | /** | |
3231 | * velocity_restore_context - restore registers | |
6aa20a22 | 3232 | * @vptr: velocity |
1da177e4 LT |
3233 | * @context: buffer for stored context |
3234 | * | |
6aa20a22 | 3235 | * Reload the register configuration from the velocity context |
1da177e4 LT |
3236 | * created by velocity_save_context. |
3237 | */ | |
6aa20a22 | 3238 | |
1da177e4 LT |
3239 | static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context) |
3240 | { | |
3241 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
3242 | int i; | |
3243 | u8 __iomem *ptr = (u8 __iomem *)regs; | |
3244 | ||
3245 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) { | |
3246 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
3247 | } | |
3248 | ||
3249 | /* Just skip cr0 */ | |
3250 | for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) { | |
3251 | /* Clear */ | |
3252 | writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4); | |
3253 | /* Set */ | |
3254 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); | |
3255 | } | |
3256 | ||
3257 | for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) { | |
3258 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
3259 | } | |
3260 | ||
3261 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) { | |
3262 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); | |
3263 | } | |
3264 | ||
3265 | for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) { | |
3266 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); | |
3267 | } | |
3268 | ||
3269 | } | |
3270 | ||
3271 | /** | |
3272 | * wol_calc_crc - WOL CRC | |
3273 | * @pattern: data pattern | |
3274 | * @mask_pattern: mask | |
3275 | * | |
3276 | * Compute the wake on lan crc hashes for the packet header | |
3277 | * we are interested in. | |
3278 | */ | |
3279 | ||
3280 | static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern) | |
3281 | { | |
3282 | u16 crc = 0xFFFF; | |
3283 | u8 mask; | |
3284 | int i, j; | |
3285 | ||
3286 | for (i = 0; i < size; i++) { | |
3287 | mask = mask_pattern[i]; | |
3288 | ||
3289 | /* Skip this loop if the mask equals to zero */ | |
3290 | if (mask == 0x00) | |
3291 | continue; | |
3292 | ||
3293 | for (j = 0; j < 8; j++) { | |
3294 | if ((mask & 0x01) == 0) { | |
3295 | mask >>= 1; | |
3296 | continue; | |
3297 | } | |
3298 | mask >>= 1; | |
3299 | crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1); | |
3300 | } | |
3301 | } | |
3302 | /* Finally, invert the result once to get the correct data */ | |
3303 | crc = ~crc; | |
906d66df | 3304 | return bitrev32(crc) >> 16; |
1da177e4 LT |
3305 | } |
3306 | ||
3307 | /** | |
3308 | * velocity_set_wol - set up for wake on lan | |
3309 | * @vptr: velocity to set WOL status on | |
3310 | * | |
3311 | * Set a card up for wake on lan either by unicast or by | |
3312 | * ARP packet. | |
3313 | * | |
3314 | * FIXME: check static buffer is safe here | |
3315 | */ | |
3316 | ||
3317 | static int velocity_set_wol(struct velocity_info *vptr) | |
3318 | { | |
3319 | struct mac_regs __iomem * regs = vptr->mac_regs; | |
3320 | static u8 buf[256]; | |
3321 | int i; | |
3322 | ||
3323 | static u32 mask_pattern[2][4] = { | |
3324 | {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */ | |
3325 | {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */ | |
3326 | }; | |
3327 | ||
3328 | writew(0xFFFF, ®s->WOLCRClr); | |
3329 | writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet); | |
3330 | writew(WOLCR_MAGIC_EN, ®s->WOLCRSet); | |
3331 | ||
3332 | /* | |
3333 | if (vptr->wol_opts & VELOCITY_WOL_PHY) | |
3334 | writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet); | |
3335 | */ | |
3336 | ||
3337 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) { | |
3338 | writew(WOLCR_UNICAST_EN, ®s->WOLCRSet); | |
3339 | } | |
3340 | ||
3341 | if (vptr->wol_opts & VELOCITY_WOL_ARP) { | |
3342 | struct arp_packet *arp = (struct arp_packet *) buf; | |
3343 | u16 crc; | |
3344 | memset(buf, 0, sizeof(struct arp_packet) + 7); | |
3345 | ||
3346 | for (i = 0; i < 4; i++) | |
3347 | writel(mask_pattern[0][i], ®s->ByteMask[0][i]); | |
3348 | ||
3349 | arp->type = htons(ETH_P_ARP); | |
3350 | arp->ar_op = htons(1); | |
3351 | ||
3352 | memcpy(arp->ar_tip, vptr->ip_addr, 4); | |
3353 | ||
3354 | crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, | |
3355 | (u8 *) & mask_pattern[0][0]); | |
3356 | ||
3357 | writew(crc, ®s->PatternCRC[0]); | |
3358 | writew(WOLCR_ARP_EN, ®s->WOLCRSet); | |
3359 | } | |
3360 | ||
3361 | BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet); | |
3362 | BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet); | |
3363 | ||
3364 | writew(0x0FFF, ®s->WOLSRClr); | |
3365 | ||
3366 | if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) { | |
3367 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) | |
3368 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); | |
3369 | ||
3370 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); | |
3371 | } | |
3372 | ||
3373 | if (vptr->mii_status & VELOCITY_SPEED_1000) | |
3374 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); | |
3375 | ||
3376 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); | |
3377 | ||
3378 | { | |
3379 | u8 GCR; | |
3380 | GCR = readb(®s->CHIPGCR); | |
3381 | GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX; | |
3382 | writeb(GCR, ®s->CHIPGCR); | |
3383 | } | |
3384 | ||
3385 | BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR); | |
3386 | /* Turn on SWPTAG just before entering power mode */ | |
3387 | BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW); | |
3388 | /* Go to bed ..... */ | |
3389 | BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); | |
3390 | ||
3391 | return 0; | |
3392 | } | |
3393 | ||
3394 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state) | |
3395 | { | |
3396 | struct net_device *dev = pci_get_drvdata(pdev); | |
3397 | struct velocity_info *vptr = netdev_priv(dev); | |
3398 | unsigned long flags; | |
3399 | ||
3400 | if(!netif_running(vptr->dev)) | |
3401 | return 0; | |
3402 | ||
3403 | netif_device_detach(vptr->dev); | |
3404 | ||
3405 | spin_lock_irqsave(&vptr->lock, flags); | |
3406 | pci_save_state(pdev); | |
3407 | #ifdef ETHTOOL_GWOL | |
3408 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) { | |
3409 | velocity_get_ip(vptr); | |
3410 | velocity_save_context(vptr, &vptr->context); | |
3411 | velocity_shutdown(vptr); | |
3412 | velocity_set_wol(vptr); | |
3413 | pci_enable_wake(pdev, 3, 1); | |
3414 | pci_set_power_state(pdev, PCI_D3hot); | |
3415 | } else { | |
3416 | velocity_save_context(vptr, &vptr->context); | |
3417 | velocity_shutdown(vptr); | |
3418 | pci_disable_device(pdev); | |
3419 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
3420 | } | |
3421 | #else | |
3422 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
3423 | #endif | |
3424 | spin_unlock_irqrestore(&vptr->lock, flags); | |
3425 | return 0; | |
3426 | } | |
3427 | ||
3428 | static int velocity_resume(struct pci_dev *pdev) | |
3429 | { | |
3430 | struct net_device *dev = pci_get_drvdata(pdev); | |
3431 | struct velocity_info *vptr = netdev_priv(dev); | |
3432 | unsigned long flags; | |
3433 | int i; | |
3434 | ||
3435 | if(!netif_running(vptr->dev)) | |
3436 | return 0; | |
3437 | ||
3438 | pci_set_power_state(pdev, PCI_D0); | |
3439 | pci_enable_wake(pdev, 0, 0); | |
3440 | pci_restore_state(pdev); | |
3441 | ||
3442 | mac_wol_reset(vptr->mac_regs); | |
3443 | ||
3444 | spin_lock_irqsave(&vptr->lock, flags); | |
3445 | velocity_restore_context(vptr, &vptr->context); | |
3446 | velocity_init_registers(vptr, VELOCITY_INIT_WOL); | |
3447 | mac_disable_int(vptr->mac_regs); | |
3448 | ||
3449 | velocity_tx_srv(vptr, 0); | |
3450 | ||
3451 | for (i = 0; i < vptr->num_txq; i++) { | |
3452 | if (vptr->td_used[i]) { | |
3453 | mac_tx_queue_wake(vptr->mac_regs, i); | |
3454 | } | |
3455 | } | |
3456 | ||
3457 | mac_enable_int(vptr->mac_regs); | |
3458 | spin_unlock_irqrestore(&vptr->lock, flags); | |
3459 | netif_device_attach(vptr->dev); | |
3460 | ||
3461 | return 0; | |
3462 | } | |
3463 | ||
ce9f7fe3 RD |
3464 | #ifdef CONFIG_INET |
3465 | ||
1da177e4 LT |
3466 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr) |
3467 | { | |
3468 | struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; | |
3469 | ||
3470 | if (ifa) { | |
3471 | struct net_device *dev = ifa->ifa_dev->dev; | |
3472 | struct velocity_info *vptr; | |
3473 | unsigned long flags; | |
3474 | ||
3475 | spin_lock_irqsave(&velocity_dev_list_lock, flags); | |
3476 | list_for_each_entry(vptr, &velocity_dev_list, list) { | |
3477 | if (vptr->dev == dev) { | |
3478 | velocity_get_ip(vptr); | |
3479 | break; | |
3480 | } | |
3481 | } | |
3482 | spin_unlock_irqrestore(&velocity_dev_list_lock, flags); | |
3483 | } | |
3484 | return NOTIFY_DONE; | |
3485 | } | |
ce9f7fe3 RD |
3486 | |
3487 | #endif | |
1da177e4 | 3488 | #endif |