blob: 2dced383bcfb8a3f93ef4cfc69569f40105cdba5 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 * rx_copybreak/alignment
12 * Scatter gather
13 * More testing
14 *
Alan Cox113aa832008-10-13 19:01:08 -070015 * The changes are (c) Copyright 2004, Red Hat Inc. <alan@lxorguk.ukuu.org.uk>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 * Additional fixes and clean up: Francois Romieu
17 *
18 * This source has not been verified for use in safety critical systems.
19 *
20 * Please direct queries about the revamped driver to the linux-kernel
21 * list not VIA.
22 *
23 * Original code:
24 *
25 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
26 * All rights reserved.
27 *
28 * This software may be redistributed and/or modified under
29 * the terms of the GNU General Public License as published by the Free
30 * Software Foundation; either version 2 of the License, or
31 * any later version.
32 *
33 * This program is distributed in the hope that it will be useful, but
34 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
35 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
36 * for more details.
37 *
38 * Author: Chuang Liang-Shing, AJ Jiang
39 *
40 * Date: Jan 24, 2003
41 *
42 * MODULE_LICENSE("GPL");
43 *
44 */
45
46
47#include <linux/module.h>
48#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070049#include <linux/init.h>
50#include <linux/mm.h>
51#include <linux/errno.h>
52#include <linux/ioport.h>
53#include <linux/pci.h>
54#include <linux/kernel.h>
55#include <linux/netdevice.h>
56#include <linux/etherdevice.h>
57#include <linux/skbuff.h>
58#include <linux/delay.h>
59#include <linux/timer.h>
60#include <linux/slab.h>
61#include <linux/interrupt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070062#include <linux/string.h>
63#include <linux/wait.h>
64#include <asm/io.h>
65#include <linux/if.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070066#include <asm/uaccess.h>
67#include <linux/proc_fs.h>
68#include <linux/inetdevice.h>
69#include <linux/reboot.h>
70#include <linux/ethtool.h>
71#include <linux/mii.h>
72#include <linux/in.h>
73#include <linux/if_arp.h>
Stephen Hemminger501e4d22007-08-24 13:56:49 -070074#include <linux/if_vlan.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070075#include <linux/ip.h>
76#include <linux/tcp.h>
77#include <linux/udp.h>
78#include <linux/crc-ccitt.h>
79#include <linux/crc32.h>
80
81#include "via-velocity.h"
82
83
84static int velocity_nics = 0;
85static int msglevel = MSG_LEVEL_INFO;
86
Stephen Hemminger01faccb2007-08-24 14:40:45 -070087/**
88 * mac_get_cam_mask - Read a CAM mask
89 * @regs: register block for this velocity
90 * @mask: buffer to store mask
91 *
92 * Fetch the mask bits of the selected CAM and store them into the
93 * provided mask buffer.
94 */
95
96static void mac_get_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
97{
98 int i;
99
100 /* Select CAM mask */
101 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
102
103 writeb(0, &regs->CAMADDR);
104
105 /* read mask */
106 for (i = 0; i < 8; i++)
107 *mask++ = readb(&(regs->MARCAM[i]));
108
109 /* disable CAMEN */
110 writeb(0, &regs->CAMADDR);
111
112 /* Select mar */
113 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
114
115}
116
117
118/**
119 * mac_set_cam_mask - Set a CAM mask
120 * @regs: register block for this velocity
121 * @mask: CAM mask to load
122 *
123 * Store a new mask into a CAM
124 */
125
126static void mac_set_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
127{
128 int i;
129 /* Select CAM mask */
130 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
131
132 writeb(CAMADDR_CAMEN, &regs->CAMADDR);
133
134 for (i = 0; i < 8; i++) {
135 writeb(*mask++, &(regs->MARCAM[i]));
136 }
137 /* disable CAMEN */
138 writeb(0, &regs->CAMADDR);
139
140 /* Select mar */
141 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
142}
143
144static void mac_set_vlan_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
145{
146 int i;
147 /* Select CAM mask */
148 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
149
150 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, &regs->CAMADDR);
151
152 for (i = 0; i < 8; i++) {
153 writeb(*mask++, &(regs->MARCAM[i]));
154 }
155 /* disable CAMEN */
156 writeb(0, &regs->CAMADDR);
157
158 /* Select mar */
159 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
160}
161
162/**
163 * mac_set_cam - set CAM data
164 * @regs: register block of this velocity
165 * @idx: Cam index
166 * @addr: 2 or 6 bytes of CAM data
167 *
168 * Load an address or vlan tag into a CAM
169 */
170
171static void mac_set_cam(struct mac_regs __iomem * regs, int idx, const u8 *addr)
172{
173 int i;
174
175 /* Select CAM mask */
176 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
177
178 idx &= (64 - 1);
179
180 writeb(CAMADDR_CAMEN | idx, &regs->CAMADDR);
181
182 for (i = 0; i < 6; i++) {
183 writeb(*addr++, &(regs->MARCAM[i]));
184 }
185 BYTE_REG_BITS_ON(CAMCR_CAMWR, &regs->CAMCR);
186
187 udelay(10);
188
189 writeb(0, &regs->CAMADDR);
190
191 /* Select mar */
192 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
193}
194
195static void mac_set_vlan_cam(struct mac_regs __iomem * regs, int idx,
196 const u8 *addr)
197{
198
199 /* Select CAM mask */
200 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
201
202 idx &= (64 - 1);
203
204 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, &regs->CAMADDR);
205 writew(*((u16 *) addr), &regs->MARCAM[0]);
206
207 BYTE_REG_BITS_ON(CAMCR_CAMWR, &regs->CAMCR);
208
209 udelay(10);
210
211 writeb(0, &regs->CAMADDR);
212
213 /* Select mar */
214 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
215}
216
217
218/**
219 * mac_wol_reset - reset WOL after exiting low power
220 * @regs: register block of this velocity
221 *
222 * Called after we drop out of wake on lan mode in order to
223 * reset the Wake on lan features. This function doesn't restore
224 * the rest of the logic from the result of sleep/wakeup
225 */
226
227static void mac_wol_reset(struct mac_regs __iomem * regs)
228{
229
230 /* Turn off SWPTAG right after leaving power mode */
231 BYTE_REG_BITS_OFF(STICKHW_SWPTAG, &regs->STICKHW);
232 /* clear sticky bits */
233 BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), &regs->STICKHW);
234
235 BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, &regs->CHIPGCR);
236 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, &regs->CHIPGCR);
237 /* disable force PME-enable */
238 writeb(WOLCFG_PMEOVR, &regs->WOLCFGClr);
239 /* disable power-event config bit */
240 writew(0xFFFF, &regs->WOLCRClr);
241 /* clear power status */
242 writew(0xFFFF, &regs->WOLSRClr);
243}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
245static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
Jeff Garzik7282d492006-09-13 14:30:00 -0400246static const struct ethtool_ops velocity_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247
248/*
249 Define module options
250*/
251
252MODULE_AUTHOR("VIA Networking Technologies, Inc.");
253MODULE_LICENSE("GPL");
254MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
255
256#define VELOCITY_PARAM(N,D) \
257 static int N[MAX_UNITS]=OPTION_DEFAULT;\
258 module_param_array(N, int, NULL, 0); \
259 MODULE_PARM_DESC(N, D);
260
261#define RX_DESC_MIN 64
262#define RX_DESC_MAX 255
263#define RX_DESC_DEF 64
264VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
265
266#define TX_DESC_MIN 16
267#define TX_DESC_MAX 256
268#define TX_DESC_DEF 64
269VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
270
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271#define RX_THRESH_MIN 0
272#define RX_THRESH_MAX 3
273#define RX_THRESH_DEF 0
274/* rx_thresh[] is used for controlling the receive fifo threshold.
275 0: indicate the rxfifo threshold is 128 bytes.
276 1: indicate the rxfifo threshold is 512 bytes.
277 2: indicate the rxfifo threshold is 1024 bytes.
278 3: indicate the rxfifo threshold is store & forward.
279*/
280VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
281
282#define DMA_LENGTH_MIN 0
283#define DMA_LENGTH_MAX 7
284#define DMA_LENGTH_DEF 0
285
286/* DMA_length[] is used for controlling the DMA length
287 0: 8 DWORDs
288 1: 16 DWORDs
289 2: 32 DWORDs
290 3: 64 DWORDs
291 4: 128 DWORDs
292 5: 256 DWORDs
293 6: SF(flush till emply)
294 7: SF(flush till emply)
295*/
296VELOCITY_PARAM(DMA_length, "DMA length");
297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298#define IP_ALIG_DEF 0
299/* IP_byte_align[] is used for IP header DWORD byte aligned
300 0: indicate the IP header won't be DWORD byte aligned.(Default) .
301 1: indicate the IP header will be DWORD byte aligned.
302 In some enviroment, the IP header should be DWORD byte aligned,
303 or the packet will be droped when we receive it. (eg: IPVS)
304*/
305VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
306
307#define TX_CSUM_DEF 1
308/* txcsum_offload[] is used for setting the checksum offload ability of NIC.
309 (We only support RX checksum offload now)
310 0: disable csum_offload[checksum offload
311 1: enable checksum offload. (Default)
312*/
313VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
314
315#define FLOW_CNTL_DEF 1
316#define FLOW_CNTL_MIN 1
317#define FLOW_CNTL_MAX 5
318
319/* flow_control[] is used for setting the flow control ability of NIC.
320 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
321 2: enable TX flow control.
322 3: enable RX flow control.
323 4: enable RX/TX flow control.
324 5: disable
325*/
326VELOCITY_PARAM(flow_control, "Enable flow control ability");
327
328#define MED_LNK_DEF 0
329#define MED_LNK_MIN 0
330#define MED_LNK_MAX 4
331/* speed_duplex[] is used for setting the speed and duplex mode of NIC.
332 0: indicate autonegotiation for both speed and duplex mode
333 1: indicate 100Mbps half duplex mode
334 2: indicate 100Mbps full duplex mode
335 3: indicate 10Mbps half duplex mode
336 4: indicate 10Mbps full duplex mode
337
338 Note:
339 if EEPROM have been set to the force mode, this option is ignored
340 by driver.
341*/
342VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
343
344#define VAL_PKT_LEN_DEF 0
345/* ValPktLen[] is used for setting the checksum offload ability of NIC.
346 0: Receive frame with invalid layer 2 length (Default)
347 1: Drop frame with invalid layer 2 length
348*/
349VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
350
351#define WOL_OPT_DEF 0
352#define WOL_OPT_MIN 0
353#define WOL_OPT_MAX 7
354/* wol_opts[] is used for controlling wake on lan behavior.
355 0: Wake up if recevied a magic packet. (Default)
356 1: Wake up if link status is on/off.
357 2: Wake up if recevied an arp packet.
358 4: Wake up if recevied any unicast packet.
359 Those value can be sumed up to support more than one option.
360*/
361VELOCITY_PARAM(wol_opts, "Wake On Lan options");
362
363#define INT_WORKS_DEF 20
364#define INT_WORKS_MIN 10
365#define INT_WORKS_MAX 64
366
367VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
368
369static int rx_copybreak = 200;
370module_param(rx_copybreak, int, 0644);
371MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
372
Jeff Garzikcabb7662006-06-27 09:25:28 -0400373static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
374 const struct velocity_info_tbl *info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
376static void velocity_print_info(struct velocity_info *vptr);
377static int velocity_open(struct net_device *dev);
378static int velocity_change_mtu(struct net_device *dev, int mtu);
379static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100380static int velocity_intr(int irq, void *dev_instance);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381static void velocity_set_multi(struct net_device *dev);
382static struct net_device_stats *velocity_get_stats(struct net_device *dev);
383static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
384static int velocity_close(struct net_device *dev);
385static int velocity_receive_frame(struct velocity_info *, int idx);
386static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
387static void velocity_free_rd_ring(struct velocity_info *vptr);
388static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
389static int velocity_soft_reset(struct velocity_info *vptr);
390static void mii_init(struct velocity_info *vptr, u32 mii_status);
Francois Romieu8a22ddd2006-06-23 00:47:06 +0200391static u32 velocity_get_link(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
393static void velocity_print_link_status(struct velocity_info *vptr);
394static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs);
395static void velocity_shutdown(struct velocity_info *vptr);
396static void enable_flow_control_ability(struct velocity_info *vptr);
397static void enable_mii_autopoll(struct mac_regs __iomem * regs);
398static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata);
399static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data);
400static u32 mii_check_media_mode(struct mac_regs __iomem * regs);
401static u32 check_connection_type(struct mac_regs __iomem * regs);
402static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
403
404#ifdef CONFIG_PM
405
406static int velocity_suspend(struct pci_dev *pdev, pm_message_t state);
407static int velocity_resume(struct pci_dev *pdev);
408
Randy Dunlapce9f7fe2006-12-18 21:21:10 -0800409static DEFINE_SPINLOCK(velocity_dev_list_lock);
410static LIST_HEAD(velocity_dev_list);
411
412#endif
413
414#if defined(CONFIG_PM) && defined(CONFIG_INET)
415
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
417
418static struct notifier_block velocity_inetaddr_notifier = {
419 .notifier_call = velocity_netdev_event,
420};
421
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422static void velocity_register_notifier(void)
423{
424 register_inetaddr_notifier(&velocity_inetaddr_notifier);
425}
426
427static void velocity_unregister_notifier(void)
428{
429 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
430}
431
Randy Dunlapce9f7fe2006-12-18 21:21:10 -0800432#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
434#define velocity_register_notifier() do {} while (0)
435#define velocity_unregister_notifier() do {} while (0)
436
Randy Dunlapce9f7fe2006-12-18 21:21:10 -0800437#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
439/*
440 * Internal board variants. At the moment we have only one
441 */
442
Andrew Morton4f14b922008-02-09 23:41:40 -0800443static struct velocity_info_tbl chip_info_table[] = {
Jeff Garzikcabb7662006-06-27 09:25:28 -0400444 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
445 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446};
447
448/*
449 * Describe the PCI device identifiers that we support in this
450 * device driver. Used for hotplug autoloading.
451 */
452
Jeff Garzike54f4892006-06-27 09:20:08 -0400453static const struct pci_device_id velocity_id_table[] __devinitdata = {
454 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
455 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456};
457
458MODULE_DEVICE_TABLE(pci, velocity_id_table);
459
460/**
461 * get_chip_name - identifier to name
462 * @id: chip identifier
463 *
464 * Given a chip identifier return a suitable description. Returns
465 * a pointer a static string valid while the driver is loaded.
466 */
467
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700468static const char __devinit *get_chip_name(enum chip_type chip_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469{
470 int i;
471 for (i = 0; chip_info_table[i].name != NULL; i++)
472 if (chip_info_table[i].chip_id == chip_id)
473 break;
474 return chip_info_table[i].name;
475}
476
477/**
478 * velocity_remove1 - device unplug
479 * @pdev: PCI device being removed
480 *
481 * Device unload callback. Called on an unplug or on module
482 * unload for each active device that is present. Disconnects
483 * the device from the network layer and frees all the resources
484 */
485
486static void __devexit velocity_remove1(struct pci_dev *pdev)
487{
488 struct net_device *dev = pci_get_drvdata(pdev);
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -0400489 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490
491#ifdef CONFIG_PM
492 unsigned long flags;
493
494 spin_lock_irqsave(&velocity_dev_list_lock, flags);
495 if (!list_empty(&velocity_dev_list))
496 list_del(&vptr->list);
497 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
498#endif
499 unregister_netdev(dev);
500 iounmap(vptr->mac_regs);
501 pci_release_regions(pdev);
502 pci_disable_device(pdev);
503 pci_set_drvdata(pdev, NULL);
504 free_netdev(dev);
505
506 velocity_nics--;
507}
508
509/**
510 * velocity_set_int_opt - parser for integer options
511 * @opt: pointer to option value
512 * @val: value the user requested (or -1 for default)
513 * @min: lowest value allowed
514 * @max: highest value allowed
515 * @def: default value
516 * @name: property name
517 * @dev: device name
518 *
519 * Set an integer property in the module options. This function does
520 * all the verification and checking as well as reporting so that
521 * we don't duplicate code for each option.
522 */
523
524static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
525{
526 if (val == -1)
527 *opt = def;
528 else if (val < min || val > max) {
529 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
530 devname, name, min, max);
531 *opt = def;
532 } else {
533 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
534 devname, name, val);
535 *opt = val;
536 }
537}
538
539/**
540 * velocity_set_bool_opt - parser for boolean options
541 * @opt: pointer to option value
542 * @val: value the user requested (or -1 for default)
543 * @def: default value (yes/no)
544 * @flag: numeric value to set for true.
545 * @name: property name
546 * @dev: device name
547 *
548 * Set a boolean property in the module options. This function does
549 * all the verification and checking as well as reporting so that
550 * we don't duplicate code for each option.
551 */
552
553static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
554{
555 (*opt) &= (~flag);
556 if (val == -1)
557 *opt |= (def ? flag : 0);
558 else if (val < 0 || val > 1) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400559 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 devname, name);
561 *opt |= (def ? flag : 0);
562 } else {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400563 printk(KERN_INFO "%s: set parameter %s to %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 devname, name, val ? "TRUE" : "FALSE");
565 *opt |= (val ? flag : 0);
566 }
567}
568
569/**
570 * velocity_get_options - set options on device
571 * @opts: option structure for the device
572 * @index: index of option to use in module options array
573 * @devname: device name
574 *
575 * Turn the module and command options into a single structure
576 * for the current device
577 */
578
579static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
580{
581
582 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
583 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
584 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
585 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700586
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
588 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
589 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
590 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
591 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
592 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);
593 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
594 opts->numrx = (opts->numrx & ~3);
595}
596
597/**
598 * velocity_init_cam_filter - initialise CAM
599 * @vptr: velocity to program
600 *
601 * Initialize the content addressable memory used for filters. Load
602 * appropriately according to the presence of VLAN
603 */
604
605static void velocity_init_cam_filter(struct velocity_info *vptr)
606{
607 struct mac_regs __iomem * regs = vptr->mac_regs;
608
609 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
610 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, &regs->MCFG);
611 WORD_REG_BITS_ON(MCFG_VIDFR, &regs->MCFG);
612
613 /* Disable all CAMs */
614 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
615 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700616 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
617 mac_set_cam_mask(regs, vptr->mCAMmask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
Francois Romieud4f73c82008-04-24 23:32:33 +0200619 /* Enable VCAMs */
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700620 if (vptr->vlgrp) {
Francois Romieud4f73c82008-04-24 23:32:33 +0200621 unsigned int vid, i = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622
Francois Romieud4f73c82008-04-24 23:32:33 +0200623 if (!vlan_group_get_device(vptr->vlgrp, 0))
624 WORD_REG_BITS_ON(MCFG_RTGOPT, &regs->MCFG);
625
626 for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
627 if (vlan_group_get_device(vptr->vlgrp, vid)) {
628 mac_set_vlan_cam(regs, i, (u8 *) &vid);
629 vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
630 if (++i >= VCAM_SIZE)
631 break;
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700632 }
633 }
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700634 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 }
636}
637
Francois Romieud4f73c82008-04-24 23:32:33 +0200638static void velocity_vlan_rx_register(struct net_device *dev,
639 struct vlan_group *grp)
640{
641 struct velocity_info *vptr = netdev_priv(dev);
642
643 vptr->vlgrp = grp;
644}
645
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700646static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
647{
648 struct velocity_info *vptr = netdev_priv(dev);
649
650 spin_lock_irq(&vptr->lock);
651 velocity_init_cam_filter(vptr);
652 spin_unlock_irq(&vptr->lock);
653}
654
655static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
656{
657 struct velocity_info *vptr = netdev_priv(dev);
658
659 spin_lock_irq(&vptr->lock);
660 vlan_group_set_device(vptr->vlgrp, vid, NULL);
661 velocity_init_cam_filter(vptr);
662 spin_unlock_irq(&vptr->lock);
663}
664
Francois Romieu3c4dc712008-07-31 22:51:18 +0200665static void velocity_init_rx_ring_indexes(struct velocity_info *vptr)
666{
667 vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0;
668}
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700669
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670/**
671 * velocity_rx_reset - handle a receive reset
672 * @vptr: velocity we are resetting
673 *
674 * Reset the ownership and status for the receive ring side.
675 * Hand all the receive queue to the NIC.
676 */
677
678static void velocity_rx_reset(struct velocity_info *vptr)
679{
680
681 struct mac_regs __iomem * regs = vptr->mac_regs;
682 int i;
683
Francois Romieu3c4dc712008-07-31 22:51:18 +0200684 velocity_init_rx_ring_indexes(vptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685
686 /*
687 * Init state, all RD entries belong to the NIC
688 */
689 for (i = 0; i < vptr->options.numrx; ++i)
Francois Romieu0fe9f152008-07-31 22:10:10 +0200690 vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691
692 writew(vptr->options.numrx, &regs->RBRDU);
Francois Romieu0fe9f152008-07-31 22:10:10 +0200693 writel(vptr->rx.pool_dma, &regs->RDBaseLo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 writew(0, &regs->RDIdx);
695 writew(vptr->options.numrx - 1, &regs->RDCSize);
696}
697
698/**
699 * velocity_init_registers - initialise MAC registers
700 * @vptr: velocity to init
701 * @type: type of initialisation (hot or cold)
702 *
703 * Initialise the MAC on a reset or on first set up on the
704 * hardware.
705 */
706
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400707static void velocity_init_registers(struct velocity_info *vptr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 enum velocity_init_type type)
709{
710 struct mac_regs __iomem * regs = vptr->mac_regs;
711 int i, mii_status;
712
713 mac_wol_reset(regs);
714
715 switch (type) {
716 case VELOCITY_INIT_RESET:
717 case VELOCITY_INIT_WOL:
718
719 netif_stop_queue(vptr->dev);
720
721 /*
722 * Reset RX to prevent RX pointer not on the 4X location
723 */
724 velocity_rx_reset(vptr);
725 mac_rx_queue_run(regs);
726 mac_rx_queue_wake(regs);
727
728 mii_status = velocity_get_opt_media_mode(vptr);
729 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
730 velocity_print_link_status(vptr);
731 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
732 netif_wake_queue(vptr->dev);
733 }
734
735 enable_flow_control_ability(vptr);
736
737 mac_clear_isr(regs);
738 writel(CR0_STOP, &regs->CR0Clr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400739 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 &regs->CR0Set);
741
742 break;
743
744 case VELOCITY_INIT_COLD:
745 default:
746 /*
747 * Do reset
748 */
749 velocity_soft_reset(vptr);
750 mdelay(5);
751
752 mac_eeprom_reload(regs);
753 for (i = 0; i < 6; i++) {
754 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
755 }
756 /*
757 * clear Pre_ACPI bit.
758 */
759 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
760 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
761 mac_set_dma_length(regs, vptr->options.DMA_length);
762
763 writeb(WOLCFG_SAM | WOLCFG_SAB, &regs->WOLCFGSet);
764 /*
765 * Back off algorithm use original IEEE standard
766 */
767 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), &regs->CFGB);
768
769 /*
770 * Init CAM filter
771 */
772 velocity_init_cam_filter(vptr);
773
774 /*
775 * Set packet filter: Receive directed and broadcast address
776 */
777 velocity_set_multi(vptr->dev);
778
779 /*
780 * Enable MII auto-polling
781 */
782 enable_mii_autopoll(regs);
783
784 vptr->int_mask = INT_MASK_DEF;
785
Francois Romieu0fe9f152008-07-31 22:10:10 +0200786 writel(vptr->rx.pool_dma, &regs->RDBaseLo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787 writew(vptr->options.numrx - 1, &regs->RDCSize);
788 mac_rx_queue_run(regs);
789 mac_rx_queue_wake(regs);
790
791 writew(vptr->options.numtx - 1, &regs->TDCSize);
792
Francois Romieu0fe9f152008-07-31 22:10:10 +0200793 for (i = 0; i < vptr->tx.numq; i++) {
794 writel(vptr->tx.pool_dma[i], &regs->TDBaseLo[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795 mac_tx_queue_run(regs, i);
796 }
797
798 init_flow_control_register(vptr);
799
800 writel(CR0_STOP, &regs->CR0Clr);
801 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), &regs->CR0Set);
802
803 mii_status = velocity_get_opt_media_mode(vptr);
804 netif_stop_queue(vptr->dev);
805
806 mii_init(vptr, mii_status);
807
808 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
809 velocity_print_link_status(vptr);
810 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
811 netif_wake_queue(vptr->dev);
812 }
813
814 enable_flow_control_ability(vptr);
815 mac_hw_mibs_init(regs);
816 mac_write_int_mask(vptr->int_mask, regs);
817 mac_clear_isr(regs);
818
819 }
820}
821
822/**
823 * velocity_soft_reset - soft reset
824 * @vptr: velocity to reset
825 *
826 * Kick off a soft reset of the velocity adapter and then poll
827 * until the reset sequence has completed before returning.
828 */
829
830static int velocity_soft_reset(struct velocity_info *vptr)
831{
832 struct mac_regs __iomem * regs = vptr->mac_regs;
833 int i = 0;
834
835 writel(CR0_SFRST, &regs->CR0Set);
836
837 for (i = 0; i < W_MAX_TIMEOUT; i++) {
838 udelay(5);
839 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, &regs->CR0Set))
840 break;
841 }
842
843 if (i == W_MAX_TIMEOUT) {
844 writel(CR0_FORSRST, &regs->CR0Set);
845 /* FIXME: PCI POSTING */
846 /* delay 2ms */
847 mdelay(2);
848 }
849 return 0;
850}
851
852/**
853 * velocity_found1 - set up discovered velocity card
854 * @pdev: PCI device
855 * @ent: PCI device table entry that matched
856 *
857 * Configure a discovered adapter from scratch. Return a negative
858 * errno error code on failure paths.
859 */
860
861static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
862{
863 static int first = 1;
864 struct net_device *dev;
865 int i;
Jeff Garzikcabb7662006-06-27 09:25:28 -0400866 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 struct velocity_info *vptr;
868 struct mac_regs __iomem * regs;
869 int ret = -ENOMEM;
870
Jeff Garzike54f4892006-06-27 09:20:08 -0400871 /* FIXME: this driver, like almost all other ethernet drivers,
872 * can support more than MAX_UNITS.
873 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 if (velocity_nics >= MAX_UNITS) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400875 dev_notice(&pdev->dev, "already found %d NICs.\n",
Jeff Garzike54f4892006-06-27 09:20:08 -0400876 velocity_nics);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 return -ENODEV;
878 }
879
880 dev = alloc_etherdev(sizeof(struct velocity_info));
Jeff Garzike54f4892006-06-27 09:20:08 -0400881 if (!dev) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -0400882 dev_err(&pdev->dev, "allocate net device failed.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 goto out;
884 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400885
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 /* Chain it all together */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400887
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888 SET_NETDEV_DEV(dev, &pdev->dev);
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -0400889 vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
891
892 if (first) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400893 printk(KERN_INFO "%s Ver. %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
895 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
896 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
897 first = 0;
898 }
899
900 velocity_init_info(pdev, vptr, info);
901
902 vptr->dev = dev;
903
904 dev->irq = pdev->irq;
905
906 ret = pci_enable_device(pdev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400907 if (ret < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 goto err_free_dev;
909
910 ret = velocity_get_pci_info(vptr, pdev);
911 if (ret < 0) {
Jeff Garzike54f4892006-06-27 09:20:08 -0400912 /* error message already printed */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913 goto err_disable;
914 }
915
916 ret = pci_request_regions(pdev, VELOCITY_NAME);
917 if (ret < 0) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -0400918 dev_err(&pdev->dev, "No PCI resources.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 goto err_disable;
920 }
921
Jeff Garzikcabb7662006-06-27 09:25:28 -0400922 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923 if (regs == NULL) {
924 ret = -EIO;
925 goto err_release_res;
926 }
927
928 vptr->mac_regs = regs;
929
930 mac_wol_reset(regs);
931
932 dev->base_addr = vptr->ioaddr;
933
934 for (i = 0; i < 6; i++)
935 dev->dev_addr[i] = readb(&regs->PAR[i]);
936
937
938 velocity_get_options(&vptr->options, velocity_nics, dev->name);
939
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400940 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941 * Mask out the options cannot be set to the chip
942 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400943
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 vptr->options.flags &= info->flags;
945
946 /*
947 * Enable the chip specified capbilities
948 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400949
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
951
952 vptr->wol_opts = vptr->options.wol_opts;
953 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
954
955 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
956
957 dev->irq = pdev->irq;
958 dev->open = velocity_open;
959 dev->hard_start_xmit = velocity_xmit;
960 dev->stop = velocity_close;
961 dev->get_stats = velocity_get_stats;
962 dev->set_multicast_list = velocity_set_multi;
963 dev->do_ioctl = velocity_ioctl;
964 dev->ethtool_ops = &velocity_ethtool_ops;
965 dev->change_mtu = velocity_change_mtu;
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700966
967 dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid;
968 dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid;
Francois Romieud4f73c82008-04-24 23:32:33 +0200969 dev->vlan_rx_register = velocity_vlan_rx_register;
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700970
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971#ifdef VELOCITY_ZERO_COPY_SUPPORT
972 dev->features |= NETIF_F_SG;
973#endif
Francois Romieud4f73c82008-04-24 23:32:33 +0200974 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
975 NETIF_F_HW_VLAN_RX;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700977 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
John W. Linville9f3f46b2005-12-09 10:36:09 -0500978 dev->features |= NETIF_F_IP_CSUM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979
980 ret = register_netdev(dev);
981 if (ret < 0)
982 goto err_iounmap;
983
Francois Romieu8a22ddd2006-06-23 00:47:06 +0200984 if (velocity_get_link(dev))
985 netif_carrier_off(dev);
986
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 velocity_print_info(vptr);
988 pci_set_drvdata(pdev, dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400989
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990 /* and leave the chip powered down */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400991
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992 pci_set_power_state(pdev, PCI_D3hot);
993#ifdef CONFIG_PM
994 {
995 unsigned long flags;
996
997 spin_lock_irqsave(&velocity_dev_list_lock, flags);
998 list_add(&vptr->list, &velocity_dev_list);
999 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
1000 }
1001#endif
1002 velocity_nics++;
1003out:
1004 return ret;
1005
1006err_iounmap:
1007 iounmap(regs);
1008err_release_res:
1009 pci_release_regions(pdev);
1010err_disable:
1011 pci_disable_device(pdev);
1012err_free_dev:
1013 free_netdev(dev);
1014 goto out;
1015}
1016
1017/**
1018 * velocity_print_info - per driver data
1019 * @vptr: velocity
1020 *
1021 * Print per driver data as the kernel driver finds Velocity
1022 * hardware
1023 */
1024
1025static void __devinit velocity_print_info(struct velocity_info *vptr)
1026{
1027 struct net_device *dev = vptr->dev;
1028
1029 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001030 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
1031 dev->name,
1032 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
1034}
1035
1036/**
1037 * velocity_init_info - init private data
1038 * @pdev: PCI device
1039 * @vptr: Velocity info
1040 * @info: Board type
1041 *
1042 * Set up the initial velocity_info struct for the device that has been
1043 * discovered.
1044 */
1045
Jeff Garzikcabb7662006-06-27 09:25:28 -04001046static void __devinit velocity_init_info(struct pci_dev *pdev,
1047 struct velocity_info *vptr,
1048 const struct velocity_info_tbl *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049{
1050 memset(vptr, 0, sizeof(struct velocity_info));
1051
1052 vptr->pdev = pdev;
1053 vptr->chip_id = info->chip_id;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001054 vptr->tx.numq = info->txqueue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 vptr->multicast_limit = MCAM_SIZE;
1056 spin_lock_init(&vptr->lock);
1057 INIT_LIST_HEAD(&vptr->list);
1058}
1059
1060/**
1061 * velocity_get_pci_info - retrieve PCI info for device
1062 * @vptr: velocity device
1063 * @pdev: PCI device it matches
1064 *
1065 * Retrieve the PCI configuration space data that interests us from
1066 * the kernel PCI layer
1067 */
1068
1069static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
1070{
Auke Kok44c10132007-06-08 15:46:36 -07001071 vptr->rev_id = pdev->revision;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001072
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 pci_set_master(pdev);
1074
1075 vptr->ioaddr = pci_resource_start(pdev, 0);
1076 vptr->memaddr = pci_resource_start(pdev, 1);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001077
Jeff Garzike54f4892006-06-27 09:20:08 -04001078 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -04001079 dev_err(&pdev->dev,
Jeff Garzike54f4892006-06-27 09:20:08 -04001080 "region #0 is not an I/O resource, aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 return -EINVAL;
1082 }
1083
Jeff Garzike54f4892006-06-27 09:20:08 -04001084 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -04001085 dev_err(&pdev->dev,
Jeff Garzike54f4892006-06-27 09:20:08 -04001086 "region #1 is an I/O resource, aborting.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 return -EINVAL;
1088 }
1089
Jeff Garzikcabb7662006-06-27 09:25:28 -04001090 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -04001091 dev_err(&pdev->dev, "region #1 is too small.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092 return -EINVAL;
1093 }
1094 vptr->pdev = pdev;
1095
1096 return 0;
1097}
1098
1099/**
Francois Romieu3c4dc712008-07-31 22:51:18 +02001100 * velocity_init_dma_rings - set up DMA rings
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101 * @vptr: Velocity to set up
1102 *
1103 * Allocate PCI mapped DMA rings for the receive and transmit layer
1104 * to use.
1105 */
1106
Francois Romieu3c4dc712008-07-31 22:51:18 +02001107static int velocity_init_dma_rings(struct velocity_info *vptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108{
Francois Romieu8ac53af2008-07-11 00:04:33 +02001109 struct velocity_opt *opt = &vptr->options;
1110 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1111 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1112 struct pci_dev *pdev = vptr->pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113 dma_addr_t pool_dma;
Francois Romieu8ac53af2008-07-11 00:04:33 +02001114 void *pool;
1115 unsigned int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116
1117 /*
Francois Romieu8ac53af2008-07-11 00:04:33 +02001118 * Allocate all RD/TD rings a single pool.
1119 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1121 * alignment
1122 */
Francois Romieu0fe9f152008-07-31 22:10:10 +02001123 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
Francois Romieu8ac53af2008-07-11 00:04:33 +02001124 rx_ring_size, &pool_dma);
1125 if (!pool) {
1126 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1127 vptr->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 return -ENOMEM;
1129 }
1130
Francois Romieu0fe9f152008-07-31 22:10:10 +02001131 vptr->rx.ring = pool;
1132 vptr->rx.pool_dma = pool_dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133
Francois Romieu8ac53af2008-07-11 00:04:33 +02001134 pool += rx_ring_size;
1135 pool_dma += rx_ring_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
Francois Romieu0fe9f152008-07-31 22:10:10 +02001137 for (i = 0; i < vptr->tx.numq; i++) {
1138 vptr->tx.rings[i] = pool;
1139 vptr->tx.pool_dma[i] = pool_dma;
Francois Romieu8ac53af2008-07-11 00:04:33 +02001140 pool += tx_ring_size;
1141 pool_dma += tx_ring_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 }
Francois Romieu8ac53af2008-07-11 00:04:33 +02001143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144 return 0;
1145}
1146
1147/**
Francois Romieu3c4dc712008-07-31 22:51:18 +02001148 * velocity_free_dma_rings - free PCI ring pointers
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149 * @vptr: Velocity to free from
1150 *
1151 * Clean up the PCI ring buffers allocated to this velocity.
1152 */
1153
Francois Romieu3c4dc712008-07-31 22:51:18 +02001154static void velocity_free_dma_rings(struct velocity_info *vptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155{
Francois Romieu580a6902008-07-11 00:03:44 +02001156 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
Francois Romieu0fe9f152008-07-31 22:10:10 +02001157 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158
Francois Romieu0fe9f152008-07-31 22:10:10 +02001159 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160}
1161
Francois Romieu28133172008-07-11 00:05:17 +02001162static void velocity_give_many_rx_descs(struct velocity_info *vptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163{
1164 struct mac_regs __iomem *regs = vptr->mac_regs;
1165 int avail, dirty, unusable;
1166
1167 /*
1168 * RD number must be equal to 4X per hardware spec
1169 * (programming guide rev 1.20, p.13)
1170 */
Francois Romieu0fe9f152008-07-31 22:10:10 +02001171 if (vptr->rx.filled < 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172 return;
1173
1174 wmb();
1175
Francois Romieu0fe9f152008-07-31 22:10:10 +02001176 unusable = vptr->rx.filled & 0x0003;
1177 dirty = vptr->rx.dirty - unusable;
1178 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001180 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181 }
1182
Francois Romieu0fe9f152008-07-31 22:10:10 +02001183 writew(vptr->rx.filled & 0xfffc, &regs->RBRDU);
1184 vptr->rx.filled = unusable;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185}
1186
1187static int velocity_rx_refill(struct velocity_info *vptr)
1188{
Francois Romieu0fe9f152008-07-31 22:10:10 +02001189 int dirty = vptr->rx.dirty, done = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190
1191 do {
Francois Romieu0fe9f152008-07-31 22:10:10 +02001192 struct rx_desc *rd = vptr->rx.ring + dirty;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193
1194 /* Fine for an all zero Rx desc at init time as well */
Al Viro4a51c0d2008-01-30 19:10:13 +00001195 if (rd->rdesc0.len & OWNED_BY_NIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 break;
1197
Francois Romieu0fe9f152008-07-31 22:10:10 +02001198 if (!vptr->rx.info[dirty].skb) {
Francois Romieu28133172008-07-11 00:05:17 +02001199 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200 break;
1201 }
1202 done++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001203 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001204 } while (dirty != vptr->rx.curr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205
1206 if (done) {
Francois Romieu0fe9f152008-07-31 22:10:10 +02001207 vptr->rx.dirty = dirty;
1208 vptr->rx.filled += done;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 }
1210
Francois Romieu28133172008-07-11 00:05:17 +02001211 return done;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212}
1213
Francois Romieu9088d9a2008-07-11 00:05:57 +02001214static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1215{
Francois Romieu0fe9f152008-07-31 22:10:10 +02001216 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
Francois Romieu9088d9a2008-07-11 00:05:57 +02001217}
1218
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219/**
1220 * velocity_init_rd_ring - set up receive ring
1221 * @vptr: velocity to configure
1222 *
1223 * Allocate and set up the receive buffers for each ring slot and
1224 * assign them to the network adapter.
1225 */
1226
1227static int velocity_init_rd_ring(struct velocity_info *vptr)
1228{
Francois Romieu28133172008-07-11 00:05:17 +02001229 int ret = -ENOMEM;
Stephen Hemminger48f6b052007-11-28 14:20:16 -08001230
Francois Romieu0fe9f152008-07-31 22:10:10 +02001231 vptr->rx.info = kcalloc(vptr->options.numrx,
Mariusz Kozlowskiae946072007-08-01 00:11:50 +02001232 sizeof(struct velocity_rd_info), GFP_KERNEL);
Francois Romieu0fe9f152008-07-31 22:10:10 +02001233 if (!vptr->rx.info)
Francois Romieu28133172008-07-11 00:05:17 +02001234 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235
Francois Romieu3c4dc712008-07-31 22:51:18 +02001236 velocity_init_rx_ring_indexes(vptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237
Francois Romieu28133172008-07-11 00:05:17 +02001238 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1240 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1241 velocity_free_rd_ring(vptr);
Francois Romieu28133172008-07-11 00:05:17 +02001242 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 }
Mariusz Kozlowskiae946072007-08-01 00:11:50 +02001244
Francois Romieu28133172008-07-11 00:05:17 +02001245 ret = 0;
1246out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247 return ret;
1248}
1249
1250/**
1251 * velocity_free_rd_ring - free receive ring
1252 * @vptr: velocity to clean up
1253 *
1254 * Free the receive buffers for each ring slot and any
1255 * attached socket buffers that need to go away.
1256 */
1257
1258static void velocity_free_rd_ring(struct velocity_info *vptr)
1259{
1260 int i;
1261
Francois Romieu0fe9f152008-07-31 22:10:10 +02001262 if (vptr->rx.info == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263 return;
1264
1265 for (i = 0; i < vptr->options.numrx; i++) {
Francois Romieu0fe9f152008-07-31 22:10:10 +02001266 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1267 struct rx_desc *rd = vptr->rx.ring + i;
Francois Romieub3c3e7d2006-02-27 23:11:08 +01001268
1269 memset(rd, 0, sizeof(*rd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270
1271 if (!rd_info->skb)
1272 continue;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001273 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 PCI_DMA_FROMDEVICE);
Francois Romieu822f1a52008-10-08 15:55:15 -07001275 rd_info->skb_dma = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276
1277 dev_kfree_skb(rd_info->skb);
1278 rd_info->skb = NULL;
1279 }
1280
Francois Romieu0fe9f152008-07-31 22:10:10 +02001281 kfree(vptr->rx.info);
1282 vptr->rx.info = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283}
1284
1285/**
1286 * velocity_init_td_ring - set up transmit ring
1287 * @vptr: velocity
1288 *
1289 * Set up the transmit ring and chain the ring pointers together.
1290 * Returns zero on success or a negative posix errno code for
1291 * failure.
1292 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001293
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294static int velocity_init_td_ring(struct velocity_info *vptr)
1295{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296 dma_addr_t curr;
Francois Romieu580a6902008-07-11 00:03:44 +02001297 unsigned int j;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298
1299 /* Init the TD ring entries */
Francois Romieu0fe9f152008-07-31 22:10:10 +02001300 for (j = 0; j < vptr->tx.numq; j++) {
1301 curr = vptr->tx.pool_dma[j];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302
Francois Romieu0fe9f152008-07-31 22:10:10 +02001303 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
Mariusz Kozlowskiae946072007-08-01 00:11:50 +02001304 sizeof(struct velocity_td_info),
1305 GFP_KERNEL);
Francois Romieu0fe9f152008-07-31 22:10:10 +02001306 if (!vptr->tx.infos[j]) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307 while(--j >= 0)
Francois Romieu0fe9f152008-07-31 22:10:10 +02001308 kfree(vptr->tx.infos[j]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309 return -ENOMEM;
1310 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311
Francois Romieu0fe9f152008-07-31 22:10:10 +02001312 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313 }
1314 return 0;
1315}
1316
1317/*
1318 * FIXME: could we merge this with velocity_free_tx_buf ?
1319 */
1320
1321static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1322 int q, int n)
1323{
Francois Romieu0fe9f152008-07-31 22:10:10 +02001324 struct velocity_td_info * td_info = &(vptr->tx.infos[q][n]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 int i;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001326
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 if (td_info == NULL)
1328 return;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001329
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 if (td_info->skb) {
1331 for (i = 0; i < td_info->nskb_dma; i++)
1332 {
1333 if (td_info->skb_dma[i]) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001334 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 td_info->skb->len, PCI_DMA_TODEVICE);
Francois Romieu822f1a52008-10-08 15:55:15 -07001336 td_info->skb_dma[i] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337 }
1338 }
1339 dev_kfree_skb(td_info->skb);
1340 td_info->skb = NULL;
1341 }
1342}
1343
1344/**
1345 * velocity_free_td_ring - free td ring
1346 * @vptr: velocity
1347 *
1348 * Free up the transmit ring for this particular velocity adapter.
1349 * We free the ring contents but not the ring itself.
1350 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001351
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352static void velocity_free_td_ring(struct velocity_info *vptr)
1353{
1354 int i, j;
1355
Francois Romieu0fe9f152008-07-31 22:10:10 +02001356 for (j = 0; j < vptr->tx.numq; j++) {
1357 if (vptr->tx.infos[j] == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358 continue;
1359 for (i = 0; i < vptr->options.numtx; i++) {
1360 velocity_free_td_ring_entry(vptr, j, i);
1361
1362 }
Francois Romieu0fe9f152008-07-31 22:10:10 +02001363 kfree(vptr->tx.infos[j]);
1364 vptr->tx.infos[j] = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 }
1366}
1367
1368/**
1369 * velocity_rx_srv - service RX interrupt
1370 * @vptr: velocity
1371 * @status: adapter status (unused)
1372 *
1373 * Walk the receive ring of the velocity adapter and remove
1374 * any received packets from the receive queue. Hand the ring
1375 * slots back to the adapter for reuse.
1376 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378static int velocity_rx_srv(struct velocity_info *vptr, int status)
1379{
1380 struct net_device_stats *stats = &vptr->stats;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001381 int rd_curr = vptr->rx.curr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 int works = 0;
1383
1384 do {
Francois Romieu0fe9f152008-07-31 22:10:10 +02001385 struct rx_desc *rd = vptr->rx.ring + rd_curr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386
Francois Romieu0fe9f152008-07-31 22:10:10 +02001387 if (!vptr->rx.info[rd_curr].skb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388 break;
1389
Al Viro4a51c0d2008-01-30 19:10:13 +00001390 if (rd->rdesc0.len & OWNED_BY_NIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391 break;
1392
1393 rmb();
1394
1395 /*
1396 * Don't drop CE or RL error frame although RXOK is off
1397 */
Al Viro4a51c0d2008-01-30 19:10:13 +00001398 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399 if (velocity_receive_frame(vptr, rd_curr) < 0)
1400 stats->rx_dropped++;
1401 } else {
1402 if (rd->rdesc0.RSR & RSR_CRC)
1403 stats->rx_crc_errors++;
1404 if (rd->rdesc0.RSR & RSR_FAE)
1405 stats->rx_frame_errors++;
1406
1407 stats->rx_dropped++;
1408 }
1409
Al Viro4a51c0d2008-01-30 19:10:13 +00001410 rd->size |= RX_INTEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
1412 vptr->dev->last_rx = jiffies;
1413
1414 rd_curr++;
1415 if (rd_curr >= vptr->options.numrx)
1416 rd_curr = 0;
1417 } while (++works <= 15);
1418
Francois Romieu0fe9f152008-07-31 22:10:10 +02001419 vptr->rx.curr = rd_curr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420
Francois Romieu28133172008-07-11 00:05:17 +02001421 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
1422 velocity_give_many_rx_descs(vptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423
1424 VAR_USED(stats);
1425 return works;
1426}
1427
1428/**
1429 * velocity_rx_csum - checksum process
1430 * @rd: receive packet descriptor
1431 * @skb: network layer packet buffer
1432 *
1433 * Process the status bits for the received packet and determine
1434 * if the checksum was computed and verified by the hardware
1435 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001436
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1438{
1439 skb->ip_summed = CHECKSUM_NONE;
1440
1441 if (rd->rdesc1.CSM & CSM_IPKT) {
1442 if (rd->rdesc1.CSM & CSM_IPOK) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001443 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 (rd->rdesc1.CSM & CSM_UDPKT)) {
1445 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1446 return;
1447 }
1448 }
1449 skb->ip_summed = CHECKSUM_UNNECESSARY;
1450 }
1451 }
1452}
1453
1454/**
1455 * velocity_rx_copy - in place Rx copy for small packets
1456 * @rx_skb: network layer packet buffer candidate
1457 * @pkt_size: received data size
1458 * @rd: receive packet descriptor
1459 * @dev: network device
1460 *
1461 * Replace the current skb that is scheduled for Rx processing by a
1462 * shorter, immediatly allocated skb, if the received packet is small
1463 * enough. This function returns a negative value if the received
1464 * packet is too big or if memory is exhausted.
1465 */
Stephen Hemmingerc73d2582008-04-16 16:37:31 -07001466static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1467 struct velocity_info *vptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468{
1469 int ret = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 if (pkt_size < rx_copybreak) {
1471 struct sk_buff *new_skb;
1472
Stephen Hemmingerc73d2582008-04-16 16:37:31 -07001473 new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 if (new_skb) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 new_skb->ip_summed = rx_skb[0]->ip_summed;
Stephen Hemmingerc73d2582008-04-16 16:37:31 -07001476 skb_reserve(new_skb, 2);
1477 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 *rx_skb = new_skb;
1479 ret = 0;
1480 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482 }
1483 return ret;
1484}
1485
1486/**
1487 * velocity_iph_realign - IP header alignment
1488 * @vptr: velocity we are handling
1489 * @skb: network layer packet buffer
1490 * @pkt_size: received data size
1491 *
1492 * Align IP header on a 2 bytes boundary. This behavior can be
1493 * configured by the user.
1494 */
1495static inline void velocity_iph_realign(struct velocity_info *vptr,
1496 struct sk_buff *skb, int pkt_size)
1497{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
Stephen Hemmingerc03571a2008-04-16 16:37:32 -07001499 memmove(skb->data + 2, skb->data, pkt_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 skb_reserve(skb, 2);
1501 }
1502}
1503
1504/**
1505 * velocity_receive_frame - received packet processor
1506 * @vptr: velocity we are handling
1507 * @idx: ring index
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001508 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 * A packet has arrived. We process the packet and if appropriate
1510 * pass the frame up the network stack
1511 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001512
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1514{
1515 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1516 struct net_device_stats *stats = &vptr->stats;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001517 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1518 struct rx_desc *rd = &(vptr->rx.ring[idx]);
Al Viro4a51c0d2008-01-30 19:10:13 +00001519 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 struct sk_buff *skb;
1521
1522 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1523 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1524 stats->rx_length_errors++;
1525 return -EINVAL;
1526 }
1527
1528 if (rd->rdesc0.RSR & RSR_MAR)
1529 vptr->stats.multicast++;
1530
1531 skb = rd_info->skb;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532
1533 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
Francois Romieu0fe9f152008-07-31 22:10:10 +02001534 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535
1536 /*
1537 * Drop frame not meeting IEEE 802.3
1538 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001539
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1541 if (rd->rdesc0.RSR & RSR_RL) {
1542 stats->rx_length_errors++;
1543 return -EINVAL;
1544 }
1545 }
1546
1547 pci_action = pci_dma_sync_single_for_device;
1548
1549 velocity_rx_csum(rd, skb);
1550
1551 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1552 velocity_iph_realign(vptr, skb, pkt_len);
1553 pci_action = pci_unmap_single;
1554 rd_info->skb = NULL;
1555 }
1556
Francois Romieu0fe9f152008-07-31 22:10:10 +02001557 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558 PCI_DMA_FROMDEVICE);
1559
1560 skb_put(skb, pkt_len - 4);
Arnaldo Carvalho de Melo4c13eb62007-04-25 17:40:23 -07001561 skb->protocol = eth_type_trans(skb, vptr->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562
Francois Romieud4f73c82008-04-24 23:32:33 +02001563 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
1564 vlan_hwaccel_rx(skb, vptr->vlgrp,
1565 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
1566 } else
1567 netif_rx(skb);
1568
Linus Torvalds1da177e2005-04-16 15:20:36 -07001569 stats->rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570
1571 return 0;
1572}
1573
1574/**
1575 * velocity_alloc_rx_buf - allocate aligned receive buffer
1576 * @vptr: velocity
1577 * @idx: ring index
1578 *
1579 * Allocate a new full sized buffer for the reception of a frame and
1580 * map it into PCI space for the hardware to use. The hardware
1581 * requires *64* byte alignment of the buffer which makes life
1582 * less fun than would be ideal.
1583 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001584
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1586{
Francois Romieu0fe9f152008-07-31 22:10:10 +02001587 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1588 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589
Francois Romieu0fe9f152008-07-31 22:10:10 +02001590 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591 if (rd_info->skb == NULL)
1592 return -ENOMEM;
1593
1594 /*
1595 * Do the gymnastics to get the buffer head for data at
1596 * 64byte alignment.
1597 */
David S. Miller689be432005-06-28 15:25:31 -07001598 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
Francois Romieu0fe9f152008-07-31 22:10:10 +02001599 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1600 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001601
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602 /*
1603 * Fill in the descriptor to match
Francois Romieu0fe9f152008-07-31 22:10:10 +02001604 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001605
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606 *((u32 *) & (rd->rdesc0)) = 0;
Francois Romieu0fe9f152008-07-31 22:10:10 +02001607 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1609 rd->pa_high = 0;
1610 return 0;
1611}
1612
1613/**
1614 * tx_srv - transmit interrupt service
1615 * @vptr; Velocity
1616 * @status:
1617 *
1618 * Scan the queues looking for transmitted packets that
1619 * we can complete and clean up. Update any statistics as
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +02001620 * necessary/
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001622
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1624{
1625 struct tx_desc *td;
1626 int qnum;
1627 int full = 0;
1628 int idx;
1629 int works = 0;
1630 struct velocity_td_info *tdinfo;
1631 struct net_device_stats *stats = &vptr->stats;
1632
Francois Romieu0fe9f152008-07-31 22:10:10 +02001633 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1634 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001635 idx = (idx + 1) % vptr->options.numtx) {
1636
1637 /*
1638 * Get Tx Descriptor
1639 */
Francois Romieu0fe9f152008-07-31 22:10:10 +02001640 td = &(vptr->tx.rings[qnum][idx]);
1641 tdinfo = &(vptr->tx.infos[qnum][idx]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642
Al Viro4a51c0d2008-01-30 19:10:13 +00001643 if (td->tdesc0.len & OWNED_BY_NIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644 break;
1645
1646 if ((works++ > 15))
1647 break;
1648
1649 if (td->tdesc0.TSR & TSR0_TERR) {
1650 stats->tx_errors++;
1651 stats->tx_dropped++;
1652 if (td->tdesc0.TSR & TSR0_CDH)
1653 stats->tx_heartbeat_errors++;
1654 if (td->tdesc0.TSR & TSR0_CRS)
1655 stats->tx_carrier_errors++;
1656 if (td->tdesc0.TSR & TSR0_ABT)
1657 stats->tx_aborted_errors++;
1658 if (td->tdesc0.TSR & TSR0_OWC)
1659 stats->tx_window_errors++;
1660 } else {
1661 stats->tx_packets++;
1662 stats->tx_bytes += tdinfo->skb->len;
1663 }
1664 velocity_free_tx_buf(vptr, tdinfo);
Francois Romieu0fe9f152008-07-31 22:10:10 +02001665 vptr->tx.used[qnum]--;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666 }
Francois Romieu0fe9f152008-07-31 22:10:10 +02001667 vptr->tx.tail[qnum] = idx;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668
1669 if (AVAIL_TD(vptr, qnum) < 1) {
1670 full = 1;
1671 }
1672 }
1673 /*
1674 * Look to see if we should kick the transmit network
1675 * layer for more work.
1676 */
1677 if (netif_queue_stopped(vptr->dev) && (full == 0)
1678 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1679 netif_wake_queue(vptr->dev);
1680 }
1681 return works;
1682}
1683
1684/**
1685 * velocity_print_link_status - link status reporting
1686 * @vptr: velocity to report on
1687 *
1688 * Turn the link status of the velocity card into a kernel log
1689 * description of the new link state, detailing speed and duplex
1690 * status
1691 */
1692
1693static void velocity_print_link_status(struct velocity_info *vptr)
1694{
1695
1696 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1697 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1698 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
Dave Jonesb4fea612007-06-06 03:07:52 -04001699 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700
1701 if (vptr->mii_status & VELOCITY_SPEED_1000)
1702 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1703 else if (vptr->mii_status & VELOCITY_SPEED_100)
1704 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1705 else
1706 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1707
1708 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1709 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1710 else
1711 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1712 } else {
1713 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1714 switch (vptr->options.spd_dpx) {
1715 case SPD_DPX_100_HALF:
1716 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1717 break;
1718 case SPD_DPX_100_FULL:
1719 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1720 break;
1721 case SPD_DPX_10_HALF:
1722 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1723 break;
1724 case SPD_DPX_10_FULL:
1725 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1726 break;
1727 default:
1728 break;
1729 }
1730 }
1731}
1732
1733/**
1734 * velocity_error - handle error from controller
1735 * @vptr: velocity
1736 * @status: card status
1737 *
1738 * Process an error report from the hardware and attempt to recover
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001739 * the card itself. At the moment we cannot recover from some
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740 * theoretically impossible errors but this could be fixed using
1741 * the pci_device_failed logic to bounce the hardware
1742 *
1743 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001744
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745static void velocity_error(struct velocity_info *vptr, int status)
1746{
1747
1748 if (status & ISR_TXSTLI) {
1749 struct mac_regs __iomem * regs = vptr->mac_regs;
1750
Eddy L O Jansson0e6ff152007-07-31 00:38:53 -07001751 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(&regs->TDIdx[0]));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 BYTE_REG_BITS_ON(TXESR_TDSTR, &regs->TXESR);
1753 writew(TRDCSR_RUN, &regs->TDCSRClr);
1754 netif_stop_queue(vptr->dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001755
Linus Torvalds1da177e2005-04-16 15:20:36 -07001756 /* FIXME: port over the pci_device_failed code and use it
1757 here */
1758 }
1759
1760 if (status & ISR_SRCI) {
1761 struct mac_regs __iomem * regs = vptr->mac_regs;
1762 int linked;
1763
1764 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1765 vptr->mii_status = check_connection_type(regs);
1766
1767 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001768 * If it is a 3119, disable frame bursting in
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 * halfduplex mode and enable it in fullduplex
1770 * mode
1771 */
1772 if (vptr->rev_id < REV_ID_VT3216_A0) {
1773 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1774 BYTE_REG_BITS_ON(TCR_TB2BDIS, &regs->TCR);
1775 else
1776 BYTE_REG_BITS_OFF(TCR_TB2BDIS, &regs->TCR);
1777 }
1778 /*
1779 * Only enable CD heart beat counter in 10HD mode
1780 */
1781 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1782 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, &regs->TESTCFG);
1783 } else {
1784 BYTE_REG_BITS_ON(TESTCFG_HBDIS, &regs->TESTCFG);
1785 }
1786 }
1787 /*
1788 * Get link status from PHYSR0
1789 */
1790 linked = readb(&regs->PHYSR0) & PHYSR0_LINKGD;
1791
1792 if (linked) {
1793 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
Francois Romieu8a22ddd2006-06-23 00:47:06 +02001794 netif_carrier_on(vptr->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 } else {
1796 vptr->mii_status |= VELOCITY_LINK_FAIL;
Francois Romieu8a22ddd2006-06-23 00:47:06 +02001797 netif_carrier_off(vptr->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798 }
1799
1800 velocity_print_link_status(vptr);
1801 enable_flow_control_ability(vptr);
1802
1803 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001804 * Re-enable auto-polling because SRCI will disable
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 * auto-polling
1806 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001807
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808 enable_mii_autopoll(regs);
1809
1810 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1811 netif_stop_queue(vptr->dev);
1812 else
1813 netif_wake_queue(vptr->dev);
1814
1815 };
1816 if (status & ISR_MIBFI)
1817 velocity_update_hw_mibs(vptr);
1818 if (status & ISR_LSTEI)
1819 mac_rx_queue_wake(vptr->mac_regs);
1820}
1821
1822/**
1823 * velocity_free_tx_buf - free transmit buffer
1824 * @vptr: velocity
1825 * @tdinfo: buffer
1826 *
1827 * Release an transmit buffer. If the buffer was preallocated then
1828 * recycle it, if not then unmap the buffer.
1829 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001830
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1832{
1833 struct sk_buff *skb = tdinfo->skb;
1834 int i;
1835
1836 /*
1837 * Don't unmap the pre-allocated tx_bufs
1838 */
Francois Romieu580a6902008-07-11 00:03:44 +02001839 if (tdinfo->skb_dma) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840
1841 for (i = 0; i < tdinfo->nskb_dma; i++) {
1842#ifdef VELOCITY_ZERO_COPY_SUPPORT
Al Viro4a51c0d2008-01-30 19:10:13 +00001843 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], le16_to_cpu(td->tdesc1.len), PCI_DMA_TODEVICE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844#else
1845 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1846#endif
1847 tdinfo->skb_dma[i] = 0;
1848 }
1849 }
1850 dev_kfree_skb_irq(skb);
1851 tdinfo->skb = NULL;
1852}
1853
Francois Romieu3c4dc712008-07-31 22:51:18 +02001854static int velocity_init_rings(struct velocity_info *vptr, int mtu)
1855{
1856 int ret;
1857
1858 velocity_set_rxbufsize(vptr, mtu);
1859
1860 ret = velocity_init_dma_rings(vptr);
1861 if (ret < 0)
1862 goto out;
1863
1864 ret = velocity_init_rd_ring(vptr);
1865 if (ret < 0)
1866 goto err_free_dma_rings_0;
1867
1868 ret = velocity_init_td_ring(vptr);
1869 if (ret < 0)
1870 goto err_free_rd_ring_1;
1871out:
1872 return ret;
1873
1874err_free_rd_ring_1:
1875 velocity_free_rd_ring(vptr);
1876err_free_dma_rings_0:
1877 velocity_free_dma_rings(vptr);
1878 goto out;
1879}
1880
1881static void velocity_free_rings(struct velocity_info *vptr)
1882{
1883 velocity_free_td_ring(vptr);
1884 velocity_free_rd_ring(vptr);
1885 velocity_free_dma_rings(vptr);
1886}
1887
Linus Torvalds1da177e2005-04-16 15:20:36 -07001888/**
1889 * velocity_open - interface activation callback
1890 * @dev: network layer device to open
1891 *
1892 * Called when the network layer brings the interface up. Returns
1893 * a negative posix error code on failure, or zero on success.
1894 *
1895 * All the ring allocation and set up is done on open for this
1896 * adapter to minimise memory usage when inactive
1897 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001898
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899static int velocity_open(struct net_device *dev)
1900{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04001901 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902 int ret;
1903
Francois Romieu3c4dc712008-07-31 22:51:18 +02001904 ret = velocity_init_rings(vptr, dev->mtu);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905 if (ret < 0)
1906 goto out;
1907
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001908 /* Ensure chip is running */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909 pci_set_power_state(vptr->pdev, PCI_D0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001910
Francois Romieu28133172008-07-11 00:05:17 +02001911 velocity_give_many_rx_descs(vptr);
1912
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1914
Thomas Gleixner1fb9df52006-07-01 19:29:39 -07001915 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916 dev->name, dev);
1917 if (ret < 0) {
1918 /* Power down the chip */
1919 pci_set_power_state(vptr->pdev, PCI_D3hot);
Francois Romieu3c4dc712008-07-31 22:51:18 +02001920 velocity_free_rings(vptr);
1921 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001922 }
1923
1924 mac_enable_int(vptr->mac_regs);
1925 netif_start_queue(dev);
1926 vptr->flags |= VELOCITY_FLAGS_OPENED;
1927out:
1928 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001929}
1930
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001931/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001932 * velocity_change_mtu - MTU change callback
1933 * @dev: network device
1934 * @new_mtu: desired MTU
1935 *
1936 * Handle requests from the networking layer for MTU change on
1937 * this interface. It gets called on a change by the network layer.
1938 * Return zero for success or negative posix error code.
1939 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001940
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1942{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04001943 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001944 int ret = 0;
1945
1946 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001947 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001948 vptr->dev->name);
Francois Romieu3c4dc712008-07-31 22:51:18 +02001949 ret = -EINVAL;
1950 goto out_0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951 }
1952
Stephen Hemmingerbd7b3f32007-11-14 19:47:27 -08001953 if (!netif_running(dev)) {
1954 dev->mtu = new_mtu;
Francois Romieu3c4dc712008-07-31 22:51:18 +02001955 goto out_0;
Stephen Hemmingerbd7b3f32007-11-14 19:47:27 -08001956 }
1957
Francois Romieu3c4dc712008-07-31 22:51:18 +02001958 if (dev->mtu != new_mtu) {
1959 struct velocity_info *tmp_vptr;
1960 unsigned long flags;
1961 struct rx_info rx;
1962 struct tx_info tx;
1963
1964 tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL);
1965 if (!tmp_vptr) {
1966 ret = -ENOMEM;
1967 goto out_0;
1968 }
1969
1970 tmp_vptr->dev = dev;
1971 tmp_vptr->pdev = vptr->pdev;
1972 tmp_vptr->options = vptr->options;
1973 tmp_vptr->tx.numq = vptr->tx.numq;
1974
1975 ret = velocity_init_rings(tmp_vptr, new_mtu);
1976 if (ret < 0)
1977 goto out_free_tmp_vptr_1;
1978
Linus Torvalds1da177e2005-04-16 15:20:36 -07001979 spin_lock_irqsave(&vptr->lock, flags);
1980
1981 netif_stop_queue(dev);
1982 velocity_shutdown(vptr);
1983
Francois Romieu3c4dc712008-07-31 22:51:18 +02001984 rx = vptr->rx;
1985 tx = vptr->tx;
1986
1987 vptr->rx = tmp_vptr->rx;
1988 vptr->tx = tmp_vptr->tx;
1989
1990 tmp_vptr->rx = rx;
1991 tmp_vptr->tx = tx;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992
1993 dev->mtu = new_mtu;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001994
Francois Romieu3c4dc712008-07-31 22:51:18 +02001995 velocity_give_many_rx_descs(vptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996
1997 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1998
1999 mac_enable_int(vptr->mac_regs);
2000 netif_start_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001
Francois Romieu3c4dc712008-07-31 22:51:18 +02002002 spin_unlock_irqrestore(&vptr->lock, flags);
2003
2004 velocity_free_rings(tmp_vptr);
2005
2006out_free_tmp_vptr_1:
2007 kfree(tmp_vptr);
2008 }
2009out_0:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002010 return ret;
2011}
2012
2013/**
2014 * velocity_shutdown - shut down the chip
2015 * @vptr: velocity to deactivate
2016 *
2017 * Shuts down the internal operations of the velocity and
2018 * disables interrupts, autopolling, transmit and receive
2019 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002020
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021static void velocity_shutdown(struct velocity_info *vptr)
2022{
2023 struct mac_regs __iomem * regs = vptr->mac_regs;
2024 mac_disable_int(regs);
2025 writel(CR0_STOP, &regs->CR0Set);
2026 writew(0xFFFF, &regs->TDCSRClr);
2027 writeb(0xFF, &regs->RDCSRClr);
2028 safe_disable_mii_autopoll(regs);
2029 mac_clear_isr(regs);
2030}
2031
2032/**
2033 * velocity_close - close adapter callback
2034 * @dev: network device
2035 *
2036 * Callback from the network layer when the velocity is being
2037 * deactivated by the network layer
2038 */
2039
2040static int velocity_close(struct net_device *dev)
2041{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002042 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043
2044 netif_stop_queue(dev);
2045 velocity_shutdown(vptr);
2046
2047 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2048 velocity_get_ip(vptr);
2049 if (dev->irq != 0)
2050 free_irq(dev->irq, dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002051
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052 /* Power down the chip */
2053 pci_set_power_state(vptr->pdev, PCI_D3hot);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002054
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055 velocity_free_rings(vptr);
2056
2057 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2058 return 0;
2059}
2060
2061/**
2062 * velocity_xmit - transmit packet callback
2063 * @skb: buffer to transmit
2064 * @dev: network device
2065 *
2066 * Called by the networ layer to request a packet is queued to
2067 * the velocity. Returns zero on success.
2068 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002069
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
2071{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002072 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002073 int qnum = 0;
2074 struct tx_desc *td_ptr;
2075 struct velocity_td_info *tdinfo;
2076 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077 int pktlen = skb->len;
Francois Romieu580a6902008-07-11 00:03:44 +02002078 __le16 len;
2079 int index;
2080
2081
2082
2083 if (skb->len < ETH_ZLEN) {
2084 if (skb_padto(skb, ETH_ZLEN))
2085 goto out;
2086 pktlen = ETH_ZLEN;
2087 }
2088
2089 len = cpu_to_le16(pktlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090
Herbert Xu364c6ba2006-06-09 16:10:40 -07002091#ifdef VELOCITY_ZERO_COPY_SUPPORT
2092 if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
2093 kfree_skb(skb);
2094 return 0;
2095 }
2096#endif
2097
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098 spin_lock_irqsave(&vptr->lock, flags);
2099
Francois Romieu0fe9f152008-07-31 22:10:10 +02002100 index = vptr->tx.curr[qnum];
2101 td_ptr = &(vptr->tx.rings[qnum][index]);
2102 tdinfo = &(vptr->tx.infos[qnum][index]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104 td_ptr->tdesc1.TCR = TCR0_TIC;
Al Viro4a51c0d2008-01-30 19:10:13 +00002105 td_ptr->td_buf[0].size &= ~TD_QUEUE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107#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) {
Arnaldo Carvalho de Melod626f622007-03-27 18:55:52 -03002112 skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113 tdinfo->skb_dma[0] = tdinfo->buf_dma;
Al Viro4a51c0d2008-01-30 19:10:13 +00002114 td_ptr->tdesc0.len = len;
Francois Romieu0fe9f152008-07-31 22:10:10 +02002115 td_ptr->tx.buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2116 td_ptr->tx.buf[0].pa_high = 0;
2117 td_ptr->tx.buf[0].size = len; /* queue is 0 anyway */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118 tdinfo->nskb_dma = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119 } else {
2120 int i = 0;
2121 tdinfo->nskb_dma = 0;
Al Viro4a51c0d2008-01-30 19:10:13 +00002122 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data,
2123 skb_headlen(skb), PCI_DMA_TODEVICE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124
Al Viro4a51c0d2008-01-30 19:10:13 +00002125 td_ptr->tdesc0.len = len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126
2127 /* FIXME: support 48bit DMA later */
Francois Romieu0fe9f152008-07-31 22:10:10 +02002128 td_ptr->tx.buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
2129 td_ptr->tx.buf[i].pa_high = 0;
2130 td_ptr->tx.buf[i].size = cpu_to_le16(skb_headlen(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131
2132 for (i = 0; i < nfrags; i++) {
2133 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
Al Viro4a51c0d2008-01-30 19:10:13 +00002134 void *addr = (void *)page_address(frag->page) + frag->page_offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135
2136 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
2137
Francois Romieu0fe9f152008-07-31 22:10:10 +02002138 td_ptr->tx.buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
2139 td_ptr->tx.buf[i + 1].pa_high = 0;
2140 td_ptr->tx.buf[i + 1].size = cpu_to_le16(frag->size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141 }
2142 tdinfo->nskb_dma = i - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143 }
2144
2145 } else
2146#endif
2147 {
2148 /*
2149 * Map the linear network buffer into PCI space and
2150 * add it to the transmit ring.
2151 */
2152 tdinfo->skb = skb;
2153 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
Al Viro4a51c0d2008-01-30 19:10:13 +00002154 td_ptr->tdesc0.len = len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2156 td_ptr->td_buf[0].pa_high = 0;
Al Viro4a51c0d2008-01-30 19:10:13 +00002157 td_ptr->td_buf[0].size = len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158 tdinfo->nskb_dma = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159 }
Al Viro4a51c0d2008-01-30 19:10:13 +00002160 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161
Stephen Hemminger501e4d22007-08-24 13:56:49 -07002162 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
Al Viro4a51c0d2008-01-30 19:10:13 +00002163 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2165 }
2166
2167 /*
2168 * Handle hardware checksum
2169 */
2170 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
Patrick McHardy84fa7932006-08-29 16:44:56 -07002171 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
Arnaldo Carvalho de Meloeddc9ec2007-04-20 22:47:35 -07002172 const struct iphdr *ip = ip_hdr(skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 if (ip->protocol == IPPROTO_TCP)
2174 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2175 else if (ip->protocol == IPPROTO_UDP)
2176 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2177 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2178 }
2179 {
2180
2181 int prev = index - 1;
2182
2183 if (prev < 0)
2184 prev = vptr->options.numtx - 1;
Al Viro4a51c0d2008-01-30 19:10:13 +00002185 td_ptr->tdesc0.len |= OWNED_BY_NIC;
Francois Romieu0fe9f152008-07-31 22:10:10 +02002186 vptr->tx.used[qnum]++;
2187 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188
2189 if (AVAIL_TD(vptr, qnum) < 1)
2190 netif_stop_queue(dev);
2191
Francois Romieu0fe9f152008-07-31 22:10:10 +02002192 td_ptr = &(vptr->tx.rings[qnum][prev]);
Al Viro4a51c0d2008-01-30 19:10:13 +00002193 td_ptr->td_buf[0].size |= TD_QUEUE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 mac_tx_queue_wake(vptr->mac_regs, qnum);
2195 }
2196 dev->trans_start = jiffies;
2197 spin_unlock_irqrestore(&vptr->lock, flags);
Francois Romieu580a6902008-07-11 00:03:44 +02002198out:
2199 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200}
2201
2202/**
2203 * velocity_intr - interrupt callback
2204 * @irq: interrupt number
2205 * @dev_instance: interrupting device
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206 *
2207 * Called whenever an interrupt is generated by the velocity
2208 * adapter IRQ line. We may not be the source of the interrupt
2209 * and need to identify initially if we are, and if not exit as
2210 * efficiently as possible.
2211 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002212
David Howells7d12e782006-10-05 14:55:46 +01002213static int velocity_intr(int irq, void *dev_instance)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002214{
2215 struct net_device *dev = dev_instance;
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002216 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217 u32 isr_status;
2218 int max_count = 0;
2219
2220
2221 spin_lock(&vptr->lock);
2222 isr_status = mac_read_isr(vptr->mac_regs);
2223
2224 /* Not us ? */
2225 if (isr_status == 0) {
2226 spin_unlock(&vptr->lock);
2227 return IRQ_NONE;
2228 }
2229
2230 mac_disable_int(vptr->mac_regs);
2231
2232 /*
2233 * Keep processing the ISR until we have completed
2234 * processing and the isr_status becomes zero
2235 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002236
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 while (isr_status != 0) {
2238 mac_write_isr(vptr->mac_regs, isr_status);
2239 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2240 velocity_error(vptr, isr_status);
2241 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2242 max_count += velocity_rx_srv(vptr, isr_status);
2243 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2244 max_count += velocity_tx_srv(vptr, isr_status);
2245 isr_status = mac_read_isr(vptr->mac_regs);
2246 if (max_count > vptr->options.int_works)
2247 {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002248 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249 dev->name);
2250 max_count = 0;
2251 }
2252 }
2253 spin_unlock(&vptr->lock);
2254 mac_enable_int(vptr->mac_regs);
2255 return IRQ_HANDLED;
2256
2257}
2258
2259
2260/**
2261 * velocity_set_multi - filter list change callback
2262 * @dev: network device
2263 *
2264 * Called by the network layer when the filter lists need to change
2265 * for a velocity adapter. Reload the CAMs with the new address
2266 * filter ruleset.
2267 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002268
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269static void velocity_set_multi(struct net_device *dev)
2270{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002271 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002272 struct mac_regs __iomem * regs = vptr->mac_regs;
2273 u8 rx_mode;
2274 int i;
2275 struct dev_mc_list *mclist;
2276
2277 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278 writel(0xffffffff, &regs->MARCAM[0]);
2279 writel(0xffffffff, &regs->MARCAM[4]);
2280 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2281 } else if ((dev->mc_count > vptr->multicast_limit)
2282 || (dev->flags & IFF_ALLMULTI)) {
2283 writel(0xffffffff, &regs->MARCAM[0]);
2284 writel(0xffffffff, &regs->MARCAM[4]);
2285 rx_mode = (RCR_AM | RCR_AB);
2286 } else {
2287 int offset = MCAM_SIZE - vptr->multicast_limit;
Stephen Hemminger01faccb2007-08-24 14:40:45 -07002288 mac_get_cam_mask(regs, vptr->mCAMmask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289
2290 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
Stephen Hemminger01faccb2007-08-24 14:40:45 -07002291 mac_set_cam(regs, i + offset, mclist->dmi_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2293 }
2294
Stephen Hemminger01faccb2007-08-24 14:40:45 -07002295 mac_set_cam_mask(regs, vptr->mCAMmask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002296 rx_mode = (RCR_AM | RCR_AB);
2297 }
2298 if (dev->mtu > 1500)
2299 rx_mode |= RCR_AL;
2300
2301 BYTE_REG_BITS_ON(rx_mode, &regs->RCR);
2302
2303}
2304
2305/**
2306 * velocity_get_status - statistics callback
2307 * @dev: network device
2308 *
2309 * Callback from the network layer to allow driver statistics
2310 * to be resynchronized with hardware collected state. In the
2311 * case of the velocity we need to pull the MIB counters from
2312 * the hardware into the counters before letting the network
2313 * layer display them.
2314 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002315
Linus Torvalds1da177e2005-04-16 15:20:36 -07002316static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2317{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002318 struct velocity_info *vptr = netdev_priv(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002319
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320 /* If the hardware is down, don't touch MII */
2321 if(!netif_running(dev))
2322 return &vptr->stats;
2323
2324 spin_lock_irq(&vptr->lock);
2325 velocity_update_hw_mibs(vptr);
2326 spin_unlock_irq(&vptr->lock);
2327
2328 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2329 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2330 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2331
2332// unsigned long rx_dropped; /* no space in linux buffers */
2333 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2334 /* detailed rx_errors: */
2335// unsigned long rx_length_errors;
2336// unsigned long rx_over_errors; /* receiver ring buff overflow */
2337 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2338// unsigned long rx_frame_errors; /* recv'd frame alignment error */
2339// unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2340// unsigned long rx_missed_errors; /* receiver missed packet */
2341
2342 /* detailed tx_errors */
2343// unsigned long tx_fifo_errors;
2344
2345 return &vptr->stats;
2346}
2347
2348
2349/**
2350 * velocity_ioctl - ioctl entry point
2351 * @dev: network device
2352 * @rq: interface request ioctl
2353 * @cmd: command code
2354 *
2355 * Called when the user issues an ioctl request to the network
2356 * device in question. The velocity interface supports MII.
2357 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002358
Linus Torvalds1da177e2005-04-16 15:20:36 -07002359static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2360{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002361 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002362 int ret;
2363
2364 /* If we are asked for information and the device is power
2365 saving then we need to bring the device back up to talk to it */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002366
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367 if (!netif_running(dev))
2368 pci_set_power_state(vptr->pdev, PCI_D0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002369
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370 switch (cmd) {
2371 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2372 case SIOCGMIIREG: /* Read MII PHY register. */
2373 case SIOCSMIIREG: /* Write to MII PHY register. */
2374 ret = velocity_mii_ioctl(dev, rq, cmd);
2375 break;
2376
2377 default:
2378 ret = -EOPNOTSUPP;
2379 }
2380 if (!netif_running(dev))
2381 pci_set_power_state(vptr->pdev, PCI_D3hot);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002382
2383
Linus Torvalds1da177e2005-04-16 15:20:36 -07002384 return ret;
2385}
2386
2387/*
2388 * Definition for our device driver. The PCI layer interface
2389 * uses this to handle all our card discover and plugging
2390 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002391
Linus Torvalds1da177e2005-04-16 15:20:36 -07002392static struct pci_driver velocity_driver = {
2393 .name = VELOCITY_NAME,
2394 .id_table = velocity_id_table,
2395 .probe = velocity_found1,
2396 .remove = __devexit_p(velocity_remove1),
2397#ifdef CONFIG_PM
2398 .suspend = velocity_suspend,
2399 .resume = velocity_resume,
2400#endif
2401};
2402
2403/**
2404 * velocity_init_module - load time function
2405 *
2406 * Called when the velocity module is loaded. The PCI driver
2407 * is registered with the PCI layer, and in turn will call
2408 * the probe functions for each velocity adapter installed
2409 * in the system.
2410 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002411
Linus Torvalds1da177e2005-04-16 15:20:36 -07002412static int __init velocity_init_module(void)
2413{
2414 int ret;
2415
2416 velocity_register_notifier();
Jeff Garzik29917622006-08-19 17:48:59 -04002417 ret = pci_register_driver(&velocity_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002418 if (ret < 0)
2419 velocity_unregister_notifier();
2420 return ret;
2421}
2422
2423/**
2424 * velocity_cleanup - module unload
2425 *
2426 * When the velocity hardware is unloaded this function is called.
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002427 * It will clean up the notifiers and the unregister the PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428 * driver interface for this hardware. This in turn cleans up
2429 * all discovered interfaces before returning from the function
2430 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002431
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432static void __exit velocity_cleanup_module(void)
2433{
2434 velocity_unregister_notifier();
2435 pci_unregister_driver(&velocity_driver);
2436}
2437
2438module_init(velocity_init_module);
2439module_exit(velocity_cleanup_module);
2440
2441
2442/*
2443 * MII access , media link mode setting functions
2444 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002445
2446
Linus Torvalds1da177e2005-04-16 15:20:36 -07002447/**
2448 * mii_init - set up MII
2449 * @vptr: velocity adapter
2450 * @mii_status: links tatus
2451 *
2452 * Set up the PHY for the current link state.
2453 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002454
Linus Torvalds1da177e2005-04-16 15:20:36 -07002455static void mii_init(struct velocity_info *vptr, u32 mii_status)
2456{
2457 u16 BMCR;
2458
2459 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2460 case PHYID_CICADA_CS8201:
2461 /*
2462 * Reset to hardware default
2463 */
2464 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2465 /*
2466 * Turn on ECHODIS bit in NWay-forced full mode and turn it
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002467 * off it in NWay-forced half mode for NWay-forced v.s.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002468 * legacy-forced issue.
2469 */
2470 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2471 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2472 else
2473 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2474 /*
2475 * Turn on Link/Activity LED enable bit for CIS8201
2476 */
2477 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2478 break;
2479 case PHYID_VT3216_32BIT:
2480 case PHYID_VT3216_64BIT:
2481 /*
2482 * Reset to hardware default
2483 */
2484 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2485 /*
2486 * Turn on ECHODIS bit in NWay-forced full mode and turn it
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002487 * off it in NWay-forced half mode for NWay-forced v.s.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002488 * legacy-forced issue
2489 */
2490 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2491 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2492 else
2493 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2494 break;
2495
2496 case PHYID_MARVELL_1000:
2497 case PHYID_MARVELL_1000S:
2498 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002499 * Assert CRS on Transmit
Linus Torvalds1da177e2005-04-16 15:20:36 -07002500 */
2501 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2502 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002503 * Reset to hardware default
Linus Torvalds1da177e2005-04-16 15:20:36 -07002504 */
2505 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2506 break;
2507 default:
2508 ;
2509 }
2510 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2511 if (BMCR & BMCR_ISO) {
2512 BMCR &= ~BMCR_ISO;
2513 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2514 }
2515}
2516
2517/**
2518 * safe_disable_mii_autopoll - autopoll off
2519 * @regs: velocity registers
2520 *
2521 * Turn off the autopoll and wait for it to disable on the chip
2522 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002523
Linus Torvalds1da177e2005-04-16 15:20:36 -07002524static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2525{
2526 u16 ww;
2527
2528 /* turn off MAUTO */
2529 writeb(0, &regs->MIICR);
2530 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2531 udelay(1);
2532 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, &regs->MIISR))
2533 break;
2534 }
2535}
2536
2537/**
2538 * enable_mii_autopoll - turn on autopolling
2539 * @regs: velocity registers
2540 *
2541 * Enable the MII link status autopoll feature on the Velocity
2542 * hardware. Wait for it to enable.
2543 */
2544
2545static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2546{
2547 int ii;
2548
2549 writeb(0, &(regs->MIICR));
2550 writeb(MIIADR_SWMPL, &regs->MIIADR);
2551
2552 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2553 udelay(1);
2554 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, &regs->MIISR))
2555 break;
2556 }
2557
2558 writeb(MIICR_MAUTO, &regs->MIICR);
2559
2560 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2561 udelay(1);
2562 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, &regs->MIISR))
2563 break;
2564 }
2565
2566}
2567
2568/**
2569 * velocity_mii_read - read MII data
2570 * @regs: velocity registers
2571 * @index: MII register index
2572 * @data: buffer for received data
2573 *
2574 * Perform a single read of an MII 16bit register. Returns zero
2575 * on success or -ETIMEDOUT if the PHY did not respond.
2576 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002577
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2579{
2580 u16 ww;
2581
2582 /*
2583 * Disable MIICR_MAUTO, so that mii addr can be set normally
2584 */
2585 safe_disable_mii_autopoll(regs);
2586
2587 writeb(index, &regs->MIIADR);
2588
2589 BYTE_REG_BITS_ON(MIICR_RCMD, &regs->MIICR);
2590
2591 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2592 if (!(readb(&regs->MIICR) & MIICR_RCMD))
2593 break;
2594 }
2595
2596 *data = readw(&regs->MIIDATA);
2597
2598 enable_mii_autopoll(regs);
2599 if (ww == W_MAX_TIMEOUT)
2600 return -ETIMEDOUT;
2601 return 0;
2602}
2603
2604/**
2605 * velocity_mii_write - write MII data
2606 * @regs: velocity registers
2607 * @index: MII register index
2608 * @data: 16bit data for the MII register
2609 *
2610 * Perform a single write to an MII 16bit register. Returns zero
2611 * on success or -ETIMEDOUT if the PHY did not respond.
2612 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002613
Linus Torvalds1da177e2005-04-16 15:20:36 -07002614static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2615{
2616 u16 ww;
2617
2618 /*
2619 * Disable MIICR_MAUTO, so that mii addr can be set normally
2620 */
2621 safe_disable_mii_autopoll(regs);
2622
2623 /* MII reg offset */
2624 writeb(mii_addr, &regs->MIIADR);
2625 /* set MII data */
2626 writew(data, &regs->MIIDATA);
2627
2628 /* turn on MIICR_WCMD */
2629 BYTE_REG_BITS_ON(MIICR_WCMD, &regs->MIICR);
2630
2631 /* W_MAX_TIMEOUT is the timeout period */
2632 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2633 udelay(5);
2634 if (!(readb(&regs->MIICR) & MIICR_WCMD))
2635 break;
2636 }
2637 enable_mii_autopoll(regs);
2638
2639 if (ww == W_MAX_TIMEOUT)
2640 return -ETIMEDOUT;
2641 return 0;
2642}
2643
2644/**
2645 * velocity_get_opt_media_mode - get media selection
2646 * @vptr: velocity adapter
2647 *
2648 * Get the media mode stored in EEPROM or module options and load
2649 * mii_status accordingly. The requested link state information
2650 * is also returned.
2651 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002652
Linus Torvalds1da177e2005-04-16 15:20:36 -07002653static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2654{
2655 u32 status = 0;
2656
2657 switch (vptr->options.spd_dpx) {
2658 case SPD_DPX_AUTO:
2659 status = VELOCITY_AUTONEG_ENABLE;
2660 break;
2661 case SPD_DPX_100_FULL:
2662 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2663 break;
2664 case SPD_DPX_10_FULL:
2665 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2666 break;
2667 case SPD_DPX_100_HALF:
2668 status = VELOCITY_SPEED_100;
2669 break;
2670 case SPD_DPX_10_HALF:
2671 status = VELOCITY_SPEED_10;
2672 break;
2673 }
2674 vptr->mii_status = status;
2675 return status;
2676}
2677
2678/**
2679 * mii_set_auto_on - autonegotiate on
2680 * @vptr: velocity
2681 *
2682 * Enable autonegotation on this interface
2683 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002684
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685static void mii_set_auto_on(struct velocity_info *vptr)
2686{
2687 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2688 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2689 else
2690 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2691}
2692
2693
2694/*
2695static void mii_set_auto_off(struct velocity_info * vptr)
2696{
2697 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2698}
2699*/
2700
2701/**
2702 * set_mii_flow_control - flow control setup
2703 * @vptr: velocity interface
2704 *
2705 * Set up the flow control on this interface according to
2706 * the supplied user/eeprom options.
2707 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002708
Linus Torvalds1da177e2005-04-16 15:20:36 -07002709static void set_mii_flow_control(struct velocity_info *vptr)
2710{
2711 /*Enable or Disable PAUSE in ANAR */
2712 switch (vptr->options.flow_cntl) {
2713 case FLOW_CNTL_TX:
2714 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2715 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2716 break;
2717
2718 case FLOW_CNTL_RX:
2719 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2720 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2721 break;
2722
2723 case FLOW_CNTL_TX_RX:
2724 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2725 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2726 break;
2727
2728 case FLOW_CNTL_DISABLE:
2729 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2730 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2731 break;
2732 default:
2733 break;
2734 }
2735}
2736
2737/**
2738 * velocity_set_media_mode - set media mode
2739 * @mii_status: old MII link state
2740 *
2741 * Check the media link state and configure the flow control
2742 * PHY and also velocity hardware setup accordingly. In particular
2743 * we need to set up CD polling and frame bursting.
2744 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002745
Linus Torvalds1da177e2005-04-16 15:20:36 -07002746static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2747{
2748 u32 curr_status;
2749 struct mac_regs __iomem * regs = vptr->mac_regs;
2750
2751 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2752 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2753
2754 /* Set mii link status */
2755 set_mii_flow_control(vptr);
2756
2757 /*
2758 Check if new status is consisent with current status
2759 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2760 || (mii_status==curr_status)) {
2761 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2762 vptr->mii_status=check_connection_type(vptr->mac_regs);
2763 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2764 return 0;
2765 }
2766 */
2767
2768 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2769 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2770 }
2771
2772 /*
2773 * If connection type is AUTO
2774 */
2775 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2776 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2777 /* clear force MAC mode bit */
2778 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, &regs->CHIPGCR);
2779 /* set duplex mode of MAC according to duplex mode of MII */
2780 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2781 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2782 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2783
2784 /* enable AUTO-NEGO mode */
2785 mii_set_auto_on(vptr);
2786 } else {
2787 u16 ANAR;
2788 u8 CHIPGCR;
2789
2790 /*
2791 * 1. if it's 3119, disable frame bursting in halfduplex mode
2792 * and enable it in fullduplex mode
2793 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2794 * 3. only enable CD heart beat counter in 10HD mode
2795 */
2796
2797 /* set force MAC mode bit */
2798 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, &regs->CHIPGCR);
2799
2800 CHIPGCR = readb(&regs->CHIPGCR);
2801 CHIPGCR &= ~CHIPGCR_FCGMII;
2802
2803 if (mii_status & VELOCITY_DUPLEX_FULL) {
2804 CHIPGCR |= CHIPGCR_FCFDX;
2805 writeb(CHIPGCR, &regs->CHIPGCR);
2806 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2807 if (vptr->rev_id < REV_ID_VT3216_A0)
2808 BYTE_REG_BITS_OFF(TCR_TB2BDIS, &regs->TCR);
2809 } else {
2810 CHIPGCR &= ~CHIPGCR_FCFDX;
2811 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2812 writeb(CHIPGCR, &regs->CHIPGCR);
2813 if (vptr->rev_id < REV_ID_VT3216_A0)
2814 BYTE_REG_BITS_ON(TCR_TB2BDIS, &regs->TCR);
2815 }
2816
2817 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2818
2819 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2820 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, &regs->TESTCFG);
2821 } else {
2822 BYTE_REG_BITS_ON(TESTCFG_HBDIS, &regs->TESTCFG);
2823 }
2824 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2825 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2826 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2827 if (mii_status & VELOCITY_SPEED_100) {
2828 if (mii_status & VELOCITY_DUPLEX_FULL)
2829 ANAR |= ANAR_TXFD;
2830 else
2831 ANAR |= ANAR_TX;
2832 } else {
2833 if (mii_status & VELOCITY_DUPLEX_FULL)
2834 ANAR |= ANAR_10FD;
2835 else
2836 ANAR |= ANAR_10;
2837 }
2838 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2839 /* enable AUTO-NEGO mode */
2840 mii_set_auto_on(vptr);
2841 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2842 }
2843 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2844 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2845 return VELOCITY_LINK_CHANGE;
2846}
2847
2848/**
2849 * mii_check_media_mode - check media state
2850 * @regs: velocity registers
2851 *
2852 * Check the current MII status and determine the link status
2853 * accordingly
2854 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002855
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2857{
2858 u32 status = 0;
2859 u16 ANAR;
2860
2861 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2862 status |= VELOCITY_LINK_FAIL;
2863
2864 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2865 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2866 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2867 status |= (VELOCITY_SPEED_1000);
2868 else {
2869 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2870 if (ANAR & ANAR_TXFD)
2871 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2872 else if (ANAR & ANAR_TX)
2873 status |= VELOCITY_SPEED_100;
2874 else if (ANAR & ANAR_10FD)
2875 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2876 else
2877 status |= (VELOCITY_SPEED_10);
2878 }
2879
2880 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2881 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2882 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2883 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2884 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2885 status |= VELOCITY_AUTONEG_ENABLE;
2886 }
2887 }
2888
2889 return status;
2890}
2891
2892static u32 check_connection_type(struct mac_regs __iomem * regs)
2893{
2894 u32 status = 0;
2895 u8 PHYSR0;
2896 u16 ANAR;
2897 PHYSR0 = readb(&regs->PHYSR0);
2898
2899 /*
2900 if (!(PHYSR0 & PHYSR0_LINKGD))
2901 status|=VELOCITY_LINK_FAIL;
2902 */
2903
2904 if (PHYSR0 & PHYSR0_FDPX)
2905 status |= VELOCITY_DUPLEX_FULL;
2906
2907 if (PHYSR0 & PHYSR0_SPDG)
2908 status |= VELOCITY_SPEED_1000;
Jay Cliburn59b693f2006-07-20 23:23:57 +02002909 else if (PHYSR0 & PHYSR0_SPD10)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002910 status |= VELOCITY_SPEED_10;
2911 else
2912 status |= VELOCITY_SPEED_100;
2913
2914 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2915 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2916 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2917 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2918 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2919 status |= VELOCITY_AUTONEG_ENABLE;
2920 }
2921 }
2922
2923 return status;
2924}
2925
2926/**
2927 * enable_flow_control_ability - flow control
2928 * @vptr: veloity to configure
2929 *
2930 * Set up flow control according to the flow control options
2931 * determined by the eeprom/configuration.
2932 */
2933
2934static void enable_flow_control_ability(struct velocity_info *vptr)
2935{
2936
2937 struct mac_regs __iomem * regs = vptr->mac_regs;
2938
2939 switch (vptr->options.flow_cntl) {
2940
2941 case FLOW_CNTL_DEFAULT:
2942 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, &regs->PHYSR0))
2943 writel(CR0_FDXRFCEN, &regs->CR0Set);
2944 else
2945 writel(CR0_FDXRFCEN, &regs->CR0Clr);
2946
2947 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, &regs->PHYSR0))
2948 writel(CR0_FDXTFCEN, &regs->CR0Set);
2949 else
2950 writel(CR0_FDXTFCEN, &regs->CR0Clr);
2951 break;
2952
2953 case FLOW_CNTL_TX:
2954 writel(CR0_FDXTFCEN, &regs->CR0Set);
2955 writel(CR0_FDXRFCEN, &regs->CR0Clr);
2956 break;
2957
2958 case FLOW_CNTL_RX:
2959 writel(CR0_FDXRFCEN, &regs->CR0Set);
2960 writel(CR0_FDXTFCEN, &regs->CR0Clr);
2961 break;
2962
2963 case FLOW_CNTL_TX_RX:
2964 writel(CR0_FDXTFCEN, &regs->CR0Set);
2965 writel(CR0_FDXRFCEN, &regs->CR0Set);
2966 break;
2967
2968 case FLOW_CNTL_DISABLE:
2969 writel(CR0_FDXRFCEN, &regs->CR0Clr);
2970 writel(CR0_FDXTFCEN, &regs->CR0Clr);
2971 break;
2972
2973 default:
2974 break;
2975 }
2976
2977}
2978
2979
2980/**
2981 * velocity_ethtool_up - pre hook for ethtool
2982 * @dev: network device
2983 *
2984 * Called before an ethtool operation. We need to make sure the
2985 * chip is out of D3 state before we poke at it.
2986 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002987
Linus Torvalds1da177e2005-04-16 15:20:36 -07002988static int velocity_ethtool_up(struct net_device *dev)
2989{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002990 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002991 if (!netif_running(dev))
2992 pci_set_power_state(vptr->pdev, PCI_D0);
2993 return 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002994}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002995
2996/**
2997 * velocity_ethtool_down - post hook for ethtool
2998 * @dev: network device
2999 *
3000 * Called after an ethtool operation. Restore the chip back to D3
3001 * state if it isn't running.
3002 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003003
Linus Torvalds1da177e2005-04-16 15:20:36 -07003004static void velocity_ethtool_down(struct net_device *dev)
3005{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003006 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003007 if (!netif_running(dev))
3008 pci_set_power_state(vptr->pdev, PCI_D3hot);
3009}
3010
3011static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3012{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003013 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003014 struct mac_regs __iomem * regs = vptr->mac_regs;
3015 u32 status;
3016 status = check_connection_type(vptr->mac_regs);
3017
Jay Cliburn59b693f2006-07-20 23:23:57 +02003018 cmd->supported = SUPPORTED_TP |
3019 SUPPORTED_Autoneg |
3020 SUPPORTED_10baseT_Half |
3021 SUPPORTED_10baseT_Full |
3022 SUPPORTED_100baseT_Half |
3023 SUPPORTED_100baseT_Full |
3024 SUPPORTED_1000baseT_Half |
3025 SUPPORTED_1000baseT_Full;
3026 if (status & VELOCITY_SPEED_1000)
3027 cmd->speed = SPEED_1000;
3028 else if (status & VELOCITY_SPEED_100)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003029 cmd->speed = SPEED_100;
3030 else
3031 cmd->speed = SPEED_10;
3032 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3033 cmd->port = PORT_TP;
3034 cmd->transceiver = XCVR_INTERNAL;
3035 cmd->phy_address = readb(&regs->MIIADR) & 0x1F;
3036
3037 if (status & VELOCITY_DUPLEX_FULL)
3038 cmd->duplex = DUPLEX_FULL;
3039 else
3040 cmd->duplex = DUPLEX_HALF;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003041
Linus Torvalds1da177e2005-04-16 15:20:36 -07003042 return 0;
3043}
3044
3045static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3046{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003047 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003048 u32 curr_status;
3049 u32 new_status = 0;
3050 int ret = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003051
Linus Torvalds1da177e2005-04-16 15:20:36 -07003052 curr_status = check_connection_type(vptr->mac_regs);
3053 curr_status &= (~VELOCITY_LINK_FAIL);
3054
3055 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3056 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3057 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3058 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3059
3060 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3061 ret = -EINVAL;
3062 else
3063 velocity_set_media_mode(vptr, new_status);
3064
3065 return ret;
3066}
3067
3068static u32 velocity_get_link(struct net_device *dev)
3069{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003070 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003071 struct mac_regs __iomem * regs = vptr->mac_regs;
Jay Cliburn59b693f2006-07-20 23:23:57 +02003072 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, &regs->PHYSR0) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003073}
3074
3075static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3076{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003077 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003078 strcpy(info->driver, VELOCITY_NAME);
3079 strcpy(info->version, VELOCITY_VERSION);
3080 strcpy(info->bus_info, pci_name(vptr->pdev));
3081}
3082
3083static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3084{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003085 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003086 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3087 wol->wolopts |= WAKE_MAGIC;
3088 /*
3089 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3090 wol.wolopts|=WAKE_PHY;
3091 */
3092 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3093 wol->wolopts |= WAKE_UCAST;
3094 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3095 wol->wolopts |= WAKE_ARP;
3096 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3097}
3098
3099static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3100{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003101 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003102
3103 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3104 return -EFAULT;
3105 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3106
3107 /*
3108 if (wol.wolopts & WAKE_PHY) {
3109 vptr->wol_opts|=VELOCITY_WOL_PHY;
3110 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3111 }
3112 */
3113
3114 if (wol->wolopts & WAKE_MAGIC) {
3115 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3116 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3117 }
3118 if (wol->wolopts & WAKE_UCAST) {
3119 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3120 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3121 }
3122 if (wol->wolopts & WAKE_ARP) {
3123 vptr->wol_opts |= VELOCITY_WOL_ARP;
3124 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3125 }
3126 memcpy(vptr->wol_passwd, wol->sopass, 6);
3127 return 0;
3128}
3129
3130static u32 velocity_get_msglevel(struct net_device *dev)
3131{
3132 return msglevel;
3133}
3134
3135static void velocity_set_msglevel(struct net_device *dev, u32 value)
3136{
3137 msglevel = value;
3138}
3139
Jeff Garzik7282d492006-09-13 14:30:00 -04003140static const struct ethtool_ops velocity_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003141 .get_settings = velocity_get_settings,
3142 .set_settings = velocity_set_settings,
3143 .get_drvinfo = velocity_get_drvinfo,
3144 .get_wol = velocity_ethtool_get_wol,
3145 .set_wol = velocity_ethtool_set_wol,
3146 .get_msglevel = velocity_get_msglevel,
3147 .set_msglevel = velocity_set_msglevel,
3148 .get_link = velocity_get_link,
3149 .begin = velocity_ethtool_up,
3150 .complete = velocity_ethtool_down
3151};
3152
3153/**
3154 * velocity_mii_ioctl - MII ioctl handler
3155 * @dev: network device
3156 * @ifr: the ifreq block for the ioctl
3157 * @cmd: the command
3158 *
3159 * Process MII requests made via ioctl from the network layer. These
3160 * are used by tools like kudzu to interrogate the link state of the
3161 * hardware
3162 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003163
Linus Torvalds1da177e2005-04-16 15:20:36 -07003164static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3165{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003166 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003167 struct mac_regs __iomem * regs = vptr->mac_regs;
3168 unsigned long flags;
3169 struct mii_ioctl_data *miidata = if_mii(ifr);
3170 int err;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003171
Linus Torvalds1da177e2005-04-16 15:20:36 -07003172 switch (cmd) {
3173 case SIOCGMIIPHY:
3174 miidata->phy_id = readb(&regs->MIIADR) & 0x1f;
3175 break;
3176 case SIOCGMIIREG:
3177 if (!capable(CAP_NET_ADMIN))
3178 return -EPERM;
3179 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3180 return -ETIMEDOUT;
3181 break;
3182 case SIOCSMIIREG:
3183 if (!capable(CAP_NET_ADMIN))
3184 return -EPERM;
3185 spin_lock_irqsave(&vptr->lock, flags);
3186 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3187 spin_unlock_irqrestore(&vptr->lock, flags);
3188 check_connection_type(vptr->mac_regs);
3189 if(err)
3190 return err;
3191 break;
3192 default:
3193 return -EOPNOTSUPP;
3194 }
3195 return 0;
3196}
3197
3198#ifdef CONFIG_PM
3199
3200/**
3201 * velocity_save_context - save registers
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003202 * @vptr: velocity
Linus Torvalds1da177e2005-04-16 15:20:36 -07003203 * @context: buffer for stored context
3204 *
3205 * Retrieve the current configuration from the velocity hardware
3206 * and stash it in the context structure, for use by the context
3207 * restore functions. This allows us to save things we need across
3208 * power down states
3209 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003210
Linus Torvalds1da177e2005-04-16 15:20:36 -07003211static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3212{
3213 struct mac_regs __iomem * regs = vptr->mac_regs;
3214 u16 i;
3215 u8 __iomem *ptr = (u8 __iomem *)regs;
3216
3217 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3218 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3219
3220 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3221 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3222
3223 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3224 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3225
3226}
3227
3228/**
3229 * velocity_restore_context - restore registers
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003230 * @vptr: velocity
Linus Torvalds1da177e2005-04-16 15:20:36 -07003231 * @context: buffer for stored context
3232 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003233 * Reload the register configuration from the velocity context
Linus Torvalds1da177e2005-04-16 15:20:36 -07003234 * created by velocity_save_context.
3235 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003236
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3238{
3239 struct mac_regs __iomem * regs = vptr->mac_regs;
3240 int i;
3241 u8 __iomem *ptr = (u8 __iomem *)regs;
3242
3243 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3244 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3245 }
3246
3247 /* Just skip cr0 */
3248 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3249 /* Clear */
3250 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3251 /* Set */
3252 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3253 }
3254
3255 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3256 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3257 }
3258
3259 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3260 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3261 }
3262
3263 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3264 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3265 }
3266
3267}
3268
3269/**
3270 * wol_calc_crc - WOL CRC
3271 * @pattern: data pattern
3272 * @mask_pattern: mask
3273 *
3274 * Compute the wake on lan crc hashes for the packet header
3275 * we are interested in.
3276 */
3277
3278static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3279{
3280 u16 crc = 0xFFFF;
3281 u8 mask;
3282 int i, j;
3283
3284 for (i = 0; i < size; i++) {
3285 mask = mask_pattern[i];
3286
3287 /* Skip this loop if the mask equals to zero */
3288 if (mask == 0x00)
3289 continue;
3290
3291 for (j = 0; j < 8; j++) {
3292 if ((mask & 0x01) == 0) {
3293 mask >>= 1;
3294 continue;
3295 }
3296 mask >>= 1;
3297 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3298 }
3299 }
3300 /* Finally, invert the result once to get the correct data */
3301 crc = ~crc;
Akinobu Mita906d66d2006-12-08 02:36:25 -08003302 return bitrev32(crc) >> 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003303}
3304
3305/**
3306 * velocity_set_wol - set up for wake on lan
3307 * @vptr: velocity to set WOL status on
3308 *
3309 * Set a card up for wake on lan either by unicast or by
3310 * ARP packet.
3311 *
3312 * FIXME: check static buffer is safe here
3313 */
3314
3315static int velocity_set_wol(struct velocity_info *vptr)
3316{
3317 struct mac_regs __iomem * regs = vptr->mac_regs;
3318 static u8 buf[256];
3319 int i;
3320
3321 static u32 mask_pattern[2][4] = {
3322 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3323 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3324 };
3325
3326 writew(0xFFFF, &regs->WOLCRClr);
3327 writeb(WOLCFG_SAB | WOLCFG_SAM, &regs->WOLCFGSet);
3328 writew(WOLCR_MAGIC_EN, &regs->WOLCRSet);
3329
3330 /*
3331 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3332 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), &regs->WOLCRSet);
3333 */
3334
3335 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3336 writew(WOLCR_UNICAST_EN, &regs->WOLCRSet);
3337 }
3338
3339 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3340 struct arp_packet *arp = (struct arp_packet *) buf;
3341 u16 crc;
3342 memset(buf, 0, sizeof(struct arp_packet) + 7);
3343
3344 for (i = 0; i < 4; i++)
3345 writel(mask_pattern[0][i], &regs->ByteMask[0][i]);
3346
3347 arp->type = htons(ETH_P_ARP);
3348 arp->ar_op = htons(1);
3349
3350 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3351
3352 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3353 (u8 *) & mask_pattern[0][0]);
3354
3355 writew(crc, &regs->PatternCRC[0]);
3356 writew(WOLCR_ARP_EN, &regs->WOLCRSet);
3357 }
3358
3359 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, &regs->PWCFGSet);
3360 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, &regs->PWCFGSet);
3361
3362 writew(0x0FFF, &regs->WOLSRClr);
3363
3364 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3365 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3366 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3367
3368 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3369 }
3370
3371 if (vptr->mii_status & VELOCITY_SPEED_1000)
3372 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3373
3374 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, &regs->CHIPGCR);
3375
3376 {
3377 u8 GCR;
3378 GCR = readb(&regs->CHIPGCR);
3379 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3380 writeb(GCR, &regs->CHIPGCR);
3381 }
3382
3383 BYTE_REG_BITS_OFF(ISR_PWEI, &regs->ISR);
3384 /* Turn on SWPTAG just before entering power mode */
3385 BYTE_REG_BITS_ON(STICKHW_SWPTAG, &regs->STICKHW);
3386 /* Go to bed ..... */
3387 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), &regs->STICKHW);
3388
3389 return 0;
3390}
3391
3392static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3393{
3394 struct net_device *dev = pci_get_drvdata(pdev);
3395 struct velocity_info *vptr = netdev_priv(dev);
3396 unsigned long flags;
3397
3398 if(!netif_running(vptr->dev))
3399 return 0;
3400
3401 netif_device_detach(vptr->dev);
3402
3403 spin_lock_irqsave(&vptr->lock, flags);
3404 pci_save_state(pdev);
3405#ifdef ETHTOOL_GWOL
3406 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3407 velocity_get_ip(vptr);
3408 velocity_save_context(vptr, &vptr->context);
3409 velocity_shutdown(vptr);
3410 velocity_set_wol(vptr);
Al Viro4a51c0d2008-01-30 19:10:13 +00003411 pci_enable_wake(pdev, PCI_D3hot, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003412 pci_set_power_state(pdev, PCI_D3hot);
3413 } else {
3414 velocity_save_context(vptr, &vptr->context);
3415 velocity_shutdown(vptr);
3416 pci_disable_device(pdev);
3417 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3418 }
3419#else
3420 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3421#endif
3422 spin_unlock_irqrestore(&vptr->lock, flags);
3423 return 0;
3424}
3425
3426static int velocity_resume(struct pci_dev *pdev)
3427{
3428 struct net_device *dev = pci_get_drvdata(pdev);
3429 struct velocity_info *vptr = netdev_priv(dev);
3430 unsigned long flags;
3431 int i;
3432
3433 if(!netif_running(vptr->dev))
3434 return 0;
3435
3436 pci_set_power_state(pdev, PCI_D0);
3437 pci_enable_wake(pdev, 0, 0);
3438 pci_restore_state(pdev);
3439
3440 mac_wol_reset(vptr->mac_regs);
3441
3442 spin_lock_irqsave(&vptr->lock, flags);
3443 velocity_restore_context(vptr, &vptr->context);
3444 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3445 mac_disable_int(vptr->mac_regs);
3446
3447 velocity_tx_srv(vptr, 0);
3448
Francois Romieu0fe9f152008-07-31 22:10:10 +02003449 for (i = 0; i < vptr->tx.numq; i++) {
3450 if (vptr->tx.used[i]) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003451 mac_tx_queue_wake(vptr->mac_regs, i);
3452 }
3453 }
3454
3455 mac_enable_int(vptr->mac_regs);
3456 spin_unlock_irqrestore(&vptr->lock, flags);
3457 netif_device_attach(vptr->dev);
3458
3459 return 0;
3460}
3461
Randy Dunlapce9f7fe2006-12-18 21:21:10 -08003462#ifdef CONFIG_INET
3463
Linus Torvalds1da177e2005-04-16 15:20:36 -07003464static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3465{
3466 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
Denis V. Luneva3374992008-02-28 20:44:27 -08003467 struct net_device *dev = ifa->ifa_dev->dev;
3468 struct velocity_info *vptr;
3469 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003470
YOSHIFUJI Hideakic346dca2008-03-25 21:47:49 +09003471 if (dev_net(dev) != &init_net)
Denis V. Lunev6133fb12008-02-28 20:46:17 -08003472 return NOTIFY_DONE;
3473
Denis V. Luneva3374992008-02-28 20:44:27 -08003474 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3475 list_for_each_entry(vptr, &velocity_dev_list, list) {
3476 if (vptr->dev == dev) {
3477 velocity_get_ip(vptr);
3478 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003479 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003480 }
Denis V. Luneva3374992008-02-28 20:44:27 -08003481 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
3482
Linus Torvalds1da177e2005-04-16 15:20:36 -07003483 return NOTIFY_DONE;
3484}
Randy Dunlapce9f7fe2006-12-18 21:21:10 -08003485
3486#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07003487#endif