blob: 1e6b395c555f401614807a3e473e557f9930f195 [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>
Dave Jonesc4067402009-07-20 17:35:21 +000064#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070065#include <linux/if.h>
Dave Jonesc4067402009-07-20 17:35:21 +000066#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#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
Dave Jonesc4067402009-07-20 17:35:21 +000084static int velocity_nics;
Linus Torvalds1da177e2005-04-16 15:20:36 -070085static 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 */
Dave Jonesc4067402009-07-20 17:35:21 +000095static void mac_get_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
Stephen Hemminger01faccb2007-08-24 14:40:45 -070096{
97 int i;
98
99 /* Select CAM mask */
100 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
101
102 writeb(0, &regs->CAMADDR);
103
104 /* read mask */
105 for (i = 0; i < 8; i++)
106 *mask++ = readb(&(regs->MARCAM[i]));
107
108 /* disable CAMEN */
109 writeb(0, &regs->CAMADDR);
110
111 /* Select mar */
112 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700113}
114
115
116/**
117 * mac_set_cam_mask - Set a CAM mask
118 * @regs: register block for this velocity
119 * @mask: CAM mask to load
120 *
121 * Store a new mask into a CAM
122 */
Dave Jonesc4067402009-07-20 17:35:21 +0000123static void mac_set_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700124{
125 int i;
126 /* Select CAM mask */
127 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
128
129 writeb(CAMADDR_CAMEN, &regs->CAMADDR);
130
Dave Jonesc4067402009-07-20 17:35:21 +0000131 for (i = 0; i < 8; i++)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700132 writeb(*mask++, &(regs->MARCAM[i]));
Dave Jonesc4067402009-07-20 17:35:21 +0000133
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700134 /* disable CAMEN */
135 writeb(0, &regs->CAMADDR);
136
137 /* Select mar */
138 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
139}
140
Dave Jonesc4067402009-07-20 17:35:21 +0000141static void mac_set_vlan_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700142{
143 int i;
144 /* Select CAM mask */
145 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
146
147 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, &regs->CAMADDR);
148
Dave Jonesc4067402009-07-20 17:35:21 +0000149 for (i = 0; i < 8; i++)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700150 writeb(*mask++, &(regs->MARCAM[i]));
Dave Jonesc4067402009-07-20 17:35:21 +0000151
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700152 /* disable CAMEN */
153 writeb(0, &regs->CAMADDR);
154
155 /* Select mar */
156 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
157}
158
159/**
160 * mac_set_cam - set CAM data
161 * @regs: register block of this velocity
162 * @idx: Cam index
163 * @addr: 2 or 6 bytes of CAM data
164 *
165 * Load an address or vlan tag into a CAM
166 */
Dave Jonesc4067402009-07-20 17:35:21 +0000167static void mac_set_cam(struct mac_regs __iomem *regs, int idx, const u8 *addr)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700168{
169 int i;
170
171 /* Select CAM mask */
172 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
173
174 idx &= (64 - 1);
175
176 writeb(CAMADDR_CAMEN | idx, &regs->CAMADDR);
177
Dave Jonesc4067402009-07-20 17:35:21 +0000178 for (i = 0; i < 6; i++)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700179 writeb(*addr++, &(regs->MARCAM[i]));
Dave Jonesc4067402009-07-20 17:35:21 +0000180
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700181 BYTE_REG_BITS_ON(CAMCR_CAMWR, &regs->CAMCR);
182
183 udelay(10);
184
185 writeb(0, &regs->CAMADDR);
186
187 /* Select mar */
188 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
189}
190
Dave Jonesc4067402009-07-20 17:35:21 +0000191static void mac_set_vlan_cam(struct mac_regs __iomem *regs, int idx,
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700192 const u8 *addr)
193{
194
195 /* Select CAM mask */
196 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
197
198 idx &= (64 - 1);
199
200 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, &regs->CAMADDR);
201 writew(*((u16 *) addr), &regs->MARCAM[0]);
202
203 BYTE_REG_BITS_ON(CAMCR_CAMWR, &regs->CAMCR);
204
205 udelay(10);
206
207 writeb(0, &regs->CAMADDR);
208
209 /* Select mar */
210 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
211}
212
213
214/**
215 * mac_wol_reset - reset WOL after exiting low power
216 * @regs: register block of this velocity
217 *
218 * Called after we drop out of wake on lan mode in order to
219 * reset the Wake on lan features. This function doesn't restore
220 * the rest of the logic from the result of sleep/wakeup
221 */
Dave Jonesc4067402009-07-20 17:35:21 +0000222static void mac_wol_reset(struct mac_regs __iomem *regs)
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700223{
224
225 /* Turn off SWPTAG right after leaving power mode */
226 BYTE_REG_BITS_OFF(STICKHW_SWPTAG, &regs->STICKHW);
227 /* clear sticky bits */
228 BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), &regs->STICKHW);
229
230 BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, &regs->CHIPGCR);
231 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, &regs->CHIPGCR);
232 /* disable force PME-enable */
233 writeb(WOLCFG_PMEOVR, &regs->WOLCFGClr);
234 /* disable power-event config bit */
235 writew(0xFFFF, &regs->WOLCRClr);
236 /* clear power status */
237 writew(0xFFFF, &regs->WOLSRClr);
238}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239
Jeff Garzik7282d492006-09-13 14:30:00 -0400240static const struct ethtool_ops velocity_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241
242/*
243 Define module options
244*/
245
246MODULE_AUTHOR("VIA Networking Technologies, Inc.");
247MODULE_LICENSE("GPL");
248MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
249
Dave Jonesc4067402009-07-20 17:35:21 +0000250#define VELOCITY_PARAM(N, D) \
251 static int N[MAX_UNITS] = OPTION_DEFAULT;\
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 module_param_array(N, int, NULL, 0); \
Dave Jonesc4067402009-07-20 17:35:21 +0000253 MODULE_PARM_DESC(N, D);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254
255#define RX_DESC_MIN 64
256#define RX_DESC_MAX 255
257#define RX_DESC_DEF 64
258VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
259
260#define TX_DESC_MIN 16
261#define TX_DESC_MAX 256
262#define TX_DESC_DEF 64
263VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
264
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265#define RX_THRESH_MIN 0
266#define RX_THRESH_MAX 3
267#define RX_THRESH_DEF 0
268/* rx_thresh[] is used for controlling the receive fifo threshold.
269 0: indicate the rxfifo threshold is 128 bytes.
270 1: indicate the rxfifo threshold is 512 bytes.
271 2: indicate the rxfifo threshold is 1024 bytes.
272 3: indicate the rxfifo threshold is store & forward.
273*/
274VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
275
276#define DMA_LENGTH_MIN 0
277#define DMA_LENGTH_MAX 7
278#define DMA_LENGTH_DEF 0
279
280/* DMA_length[] is used for controlling the DMA length
281 0: 8 DWORDs
282 1: 16 DWORDs
283 2: 32 DWORDs
284 3: 64 DWORDs
285 4: 128 DWORDs
286 5: 256 DWORDs
287 6: SF(flush till emply)
288 7: SF(flush till emply)
289*/
290VELOCITY_PARAM(DMA_length, "DMA length");
291
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292#define IP_ALIG_DEF 0
293/* IP_byte_align[] is used for IP header DWORD byte aligned
294 0: indicate the IP header won't be DWORD byte aligned.(Default) .
295 1: indicate the IP header will be DWORD byte aligned.
296 In some enviroment, the IP header should be DWORD byte aligned,
297 or the packet will be droped when we receive it. (eg: IPVS)
298*/
299VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
300
301#define TX_CSUM_DEF 1
302/* txcsum_offload[] is used for setting the checksum offload ability of NIC.
303 (We only support RX checksum offload now)
304 0: disable csum_offload[checksum offload
305 1: enable checksum offload. (Default)
306*/
307VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
308
309#define FLOW_CNTL_DEF 1
310#define FLOW_CNTL_MIN 1
311#define FLOW_CNTL_MAX 5
312
313/* flow_control[] is used for setting the flow control ability of NIC.
314 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
315 2: enable TX flow control.
316 3: enable RX flow control.
317 4: enable RX/TX flow control.
318 5: disable
319*/
320VELOCITY_PARAM(flow_control, "Enable flow control ability");
321
322#define MED_LNK_DEF 0
323#define MED_LNK_MIN 0
324#define MED_LNK_MAX 4
325/* speed_duplex[] is used for setting the speed and duplex mode of NIC.
326 0: indicate autonegotiation for both speed and duplex mode
327 1: indicate 100Mbps half duplex mode
328 2: indicate 100Mbps full duplex mode
329 3: indicate 10Mbps half duplex mode
330 4: indicate 10Mbps full duplex mode
331
332 Note:
Dave Jonesc4067402009-07-20 17:35:21 +0000333 if EEPROM have been set to the force mode, this option is ignored
334 by driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335*/
336VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
337
338#define VAL_PKT_LEN_DEF 0
339/* ValPktLen[] is used for setting the checksum offload ability of NIC.
340 0: Receive frame with invalid layer 2 length (Default)
341 1: Drop frame with invalid layer 2 length
342*/
343VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
344
345#define WOL_OPT_DEF 0
346#define WOL_OPT_MIN 0
347#define WOL_OPT_MAX 7
348/* wol_opts[] is used for controlling wake on lan behavior.
349 0: Wake up if recevied a magic packet. (Default)
350 1: Wake up if link status is on/off.
351 2: Wake up if recevied an arp packet.
352 4: Wake up if recevied any unicast packet.
353 Those value can be sumed up to support more than one option.
354*/
355VELOCITY_PARAM(wol_opts, "Wake On Lan options");
356
357#define INT_WORKS_DEF 20
358#define INT_WORKS_MIN 10
359#define INT_WORKS_MAX 64
360
361VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
362
363static int rx_copybreak = 200;
364module_param(rx_copybreak, int, 0644);
365MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
366
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367/*
368 * Internal board variants. At the moment we have only one
369 */
Andrew Morton4f14b922008-02-09 23:41:40 -0800370static struct velocity_info_tbl chip_info_table[] = {
Jeff Garzikcabb7662006-06-27 09:25:28 -0400371 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
372 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373};
374
375/*
376 * Describe the PCI device identifiers that we support in this
377 * device driver. Used for hotplug autoloading.
378 */
Jeff Garzike54f4892006-06-27 09:20:08 -0400379static const struct pci_device_id velocity_id_table[] __devinitdata = {
380 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
381 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382};
383
384MODULE_DEVICE_TABLE(pci, velocity_id_table);
385
386/**
387 * get_chip_name - identifier to name
388 * @id: chip identifier
389 *
390 * Given a chip identifier return a suitable description. Returns
391 * a pointer a static string valid while the driver is loaded.
392 */
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700393static const char __devinit *get_chip_name(enum chip_type chip_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394{
395 int i;
396 for (i = 0; chip_info_table[i].name != NULL; i++)
397 if (chip_info_table[i].chip_id == chip_id)
398 break;
399 return chip_info_table[i].name;
400}
401
402/**
403 * velocity_remove1 - device unplug
404 * @pdev: PCI device being removed
405 *
406 * Device unload callback. Called on an unplug or on module
407 * unload for each active device that is present. Disconnects
408 * the device from the network layer and frees all the resources
409 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410static void __devexit velocity_remove1(struct pci_dev *pdev)
411{
412 struct net_device *dev = pci_get_drvdata(pdev);
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -0400413 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 unregister_netdev(dev);
416 iounmap(vptr->mac_regs);
417 pci_release_regions(pdev);
418 pci_disable_device(pdev);
419 pci_set_drvdata(pdev, NULL);
420 free_netdev(dev);
421
422 velocity_nics--;
423}
424
425/**
426 * velocity_set_int_opt - parser for integer options
427 * @opt: pointer to option value
428 * @val: value the user requested (or -1 for default)
429 * @min: lowest value allowed
430 * @max: highest value allowed
431 * @def: default value
432 * @name: property name
433 * @dev: device name
434 *
435 * Set an integer property in the module options. This function does
436 * all the verification and checking as well as reporting so that
437 * we don't duplicate code for each option.
438 */
Sven Hartge07b5f6a2008-10-23 13:03:44 +0000439static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440{
441 if (val == -1)
442 *opt = def;
443 else if (val < min || val > max) {
444 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
445 devname, name, min, max);
446 *opt = def;
447 } else {
448 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
449 devname, name, val);
450 *opt = val;
451 }
452}
453
454/**
455 * velocity_set_bool_opt - parser for boolean options
456 * @opt: pointer to option value
457 * @val: value the user requested (or -1 for default)
458 * @def: default value (yes/no)
459 * @flag: numeric value to set for true.
460 * @name: property name
461 * @dev: device name
462 *
463 * Set a boolean property in the module options. This function does
464 * all the verification and checking as well as reporting so that
465 * we don't duplicate code for each option.
466 */
Dave Jonesc4067402009-07-20 17:35:21 +0000467static void __devinit velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag, char *name, const char *devname)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468{
469 (*opt) &= (~flag);
470 if (val == -1)
471 *opt |= (def ? flag : 0);
472 else if (val < 0 || val > 1) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400473 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 -0700474 devname, name);
475 *opt |= (def ? flag : 0);
476 } else {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400477 printk(KERN_INFO "%s: set parameter %s to %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 devname, name, val ? "TRUE" : "FALSE");
479 *opt |= (val ? flag : 0);
480 }
481}
482
483/**
484 * velocity_get_options - set options on device
485 * @opts: option structure for the device
486 * @index: index of option to use in module options array
487 * @devname: device name
488 *
489 * Turn the module and command options into a single structure
490 * for the current device
491 */
Sven Hartge07b5f6a2008-10-23 13:03:44 +0000492static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493{
494
495 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
496 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
497 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
498 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700499
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
501 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
502 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
503 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
504 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
505 velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
506 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
507 opts->numrx = (opts->numrx & ~3);
508}
509
510/**
511 * velocity_init_cam_filter - initialise CAM
512 * @vptr: velocity to program
513 *
514 * Initialize the content addressable memory used for filters. Load
515 * appropriately according to the presence of VLAN
516 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517static void velocity_init_cam_filter(struct velocity_info *vptr)
518{
Dave Jonesc4067402009-07-20 17:35:21 +0000519 struct mac_regs __iomem *regs = vptr->mac_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
521 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
522 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, &regs->MCFG);
523 WORD_REG_BITS_ON(MCFG_VIDFR, &regs->MCFG);
524
525 /* Disable all CAMs */
526 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
527 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700528 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
529 mac_set_cam_mask(regs, vptr->mCAMmask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
Francois Romieud4f73c82008-04-24 23:32:33 +0200531 /* Enable VCAMs */
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700532 if (vptr->vlgrp) {
Francois Romieud4f73c82008-04-24 23:32:33 +0200533 unsigned int vid, i = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534
Francois Romieud4f73c82008-04-24 23:32:33 +0200535 if (!vlan_group_get_device(vptr->vlgrp, 0))
536 WORD_REG_BITS_ON(MCFG_RTGOPT, &regs->MCFG);
537
538 for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
539 if (vlan_group_get_device(vptr->vlgrp, vid)) {
540 mac_set_vlan_cam(regs, i, (u8 *) &vid);
541 vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
542 if (++i >= VCAM_SIZE)
543 break;
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700544 }
545 }
Stephen Hemminger01faccb2007-08-24 14:40:45 -0700546 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547 }
548}
549
Francois Romieud4f73c82008-04-24 23:32:33 +0200550static void velocity_vlan_rx_register(struct net_device *dev,
551 struct vlan_group *grp)
552{
553 struct velocity_info *vptr = netdev_priv(dev);
554
555 vptr->vlgrp = grp;
556}
557
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700558static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
559{
560 struct velocity_info *vptr = netdev_priv(dev);
561
Dave Jonesc4067402009-07-20 17:35:21 +0000562 spin_lock_irq(&vptr->lock);
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700563 velocity_init_cam_filter(vptr);
Dave Jonesc4067402009-07-20 17:35:21 +0000564 spin_unlock_irq(&vptr->lock);
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700565}
566
567static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
568{
569 struct velocity_info *vptr = netdev_priv(dev);
570
Dave Jonesc4067402009-07-20 17:35:21 +0000571 spin_lock_irq(&vptr->lock);
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700572 vlan_group_set_device(vptr->vlgrp, vid, NULL);
573 velocity_init_cam_filter(vptr);
Dave Jonesc4067402009-07-20 17:35:21 +0000574 spin_unlock_irq(&vptr->lock);
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700575}
576
Francois Romieu3c4dc712008-07-31 22:51:18 +0200577static void velocity_init_rx_ring_indexes(struct velocity_info *vptr)
578{
579 vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0;
580}
Stephen Hemminger501e4d22007-08-24 13:56:49 -0700581
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582/**
583 * velocity_rx_reset - handle a receive reset
584 * @vptr: velocity we are resetting
585 *
586 * Reset the ownership and status for the receive ring side.
587 * Hand all the receive queue to the NIC.
588 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589static void velocity_rx_reset(struct velocity_info *vptr)
590{
591
Dave Jonesc4067402009-07-20 17:35:21 +0000592 struct mac_regs __iomem *regs = vptr->mac_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 int i;
594
Francois Romieu3c4dc712008-07-31 22:51:18 +0200595 velocity_init_rx_ring_indexes(vptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596
597 /*
598 * Init state, all RD entries belong to the NIC
599 */
600 for (i = 0; i < vptr->options.numrx; ++i)
Francois Romieu0fe9f152008-07-31 22:10:10 +0200601 vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602
603 writew(vptr->options.numrx, &regs->RBRDU);
Francois Romieu0fe9f152008-07-31 22:10:10 +0200604 writel(vptr->rx.pool_dma, &regs->RDBaseLo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 writew(0, &regs->RDIdx);
606 writew(vptr->options.numrx - 1, &regs->RDCSize);
607}
608
609/**
Dave Jones2cf71d22009-07-23 18:11:12 -0700610 * velocity_get_opt_media_mode - get media selection
611 * @vptr: velocity adapter
612 *
613 * Get the media mode stored in EEPROM or module options and load
614 * mii_status accordingly. The requested link state information
615 * is also returned.
616 */
617static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
618{
619 u32 status = 0;
620
621 switch (vptr->options.spd_dpx) {
622 case SPD_DPX_AUTO:
623 status = VELOCITY_AUTONEG_ENABLE;
624 break;
625 case SPD_DPX_100_FULL:
626 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
627 break;
628 case SPD_DPX_10_FULL:
629 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
630 break;
631 case SPD_DPX_100_HALF:
632 status = VELOCITY_SPEED_100;
633 break;
634 case SPD_DPX_10_HALF:
635 status = VELOCITY_SPEED_10;
636 break;
637 }
638 vptr->mii_status = status;
639 return status;
640}
641
642/**
643 * safe_disable_mii_autopoll - autopoll off
644 * @regs: velocity registers
645 *
646 * Turn off the autopoll and wait for it to disable on the chip
647 */
648static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs)
649{
650 u16 ww;
651
652 /* turn off MAUTO */
653 writeb(0, &regs->MIICR);
654 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
655 udelay(1);
656 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, &regs->MIISR))
657 break;
658 }
659}
660
661/**
662 * enable_mii_autopoll - turn on autopolling
663 * @regs: velocity registers
664 *
665 * Enable the MII link status autopoll feature on the Velocity
666 * hardware. Wait for it to enable.
667 */
668static void enable_mii_autopoll(struct mac_regs __iomem *regs)
669{
670 int ii;
671
672 writeb(0, &(regs->MIICR));
673 writeb(MIIADR_SWMPL, &regs->MIIADR);
674
675 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
676 udelay(1);
677 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, &regs->MIISR))
678 break;
679 }
680
681 writeb(MIICR_MAUTO, &regs->MIICR);
682
683 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
684 udelay(1);
685 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, &regs->MIISR))
686 break;
687 }
688
689}
690
691/**
692 * velocity_mii_read - read MII data
693 * @regs: velocity registers
694 * @index: MII register index
695 * @data: buffer for received data
696 *
697 * Perform a single read of an MII 16bit register. Returns zero
698 * on success or -ETIMEDOUT if the PHY did not respond.
699 */
700static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
701{
702 u16 ww;
703
704 /*
705 * Disable MIICR_MAUTO, so that mii addr can be set normally
706 */
707 safe_disable_mii_autopoll(regs);
708
709 writeb(index, &regs->MIIADR);
710
711 BYTE_REG_BITS_ON(MIICR_RCMD, &regs->MIICR);
712
713 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
714 if (!(readb(&regs->MIICR) & MIICR_RCMD))
715 break;
716 }
717
718 *data = readw(&regs->MIIDATA);
719
720 enable_mii_autopoll(regs);
721 if (ww == W_MAX_TIMEOUT)
722 return -ETIMEDOUT;
723 return 0;
724}
725
726
727/**
728 * mii_check_media_mode - check media state
729 * @regs: velocity registers
730 *
731 * Check the current MII status and determine the link status
732 * accordingly
733 */
734static u32 mii_check_media_mode(struct mac_regs __iomem *regs)
735{
736 u32 status = 0;
737 u16 ANAR;
738
739 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
740 status |= VELOCITY_LINK_FAIL;
741
742 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
743 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
744 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
745 status |= (VELOCITY_SPEED_1000);
746 else {
747 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
748 if (ANAR & ANAR_TXFD)
749 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
750 else if (ANAR & ANAR_TX)
751 status |= VELOCITY_SPEED_100;
752 else if (ANAR & ANAR_10FD)
753 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
754 else
755 status |= (VELOCITY_SPEED_10);
756 }
757
758 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
759 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
760 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
761 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
762 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
763 status |= VELOCITY_AUTONEG_ENABLE;
764 }
765 }
766
767 return status;
768}
769
770/**
771 * velocity_mii_write - write MII data
772 * @regs: velocity registers
773 * @index: MII register index
774 * @data: 16bit data for the MII register
775 *
776 * Perform a single write to an MII 16bit register. Returns zero
777 * on success or -ETIMEDOUT if the PHY did not respond.
778 */
779static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
780{
781 u16 ww;
782
783 /*
784 * Disable MIICR_MAUTO, so that mii addr can be set normally
785 */
786 safe_disable_mii_autopoll(regs);
787
788 /* MII reg offset */
789 writeb(mii_addr, &regs->MIIADR);
790 /* set MII data */
791 writew(data, &regs->MIIDATA);
792
793 /* turn on MIICR_WCMD */
794 BYTE_REG_BITS_ON(MIICR_WCMD, &regs->MIICR);
795
796 /* W_MAX_TIMEOUT is the timeout period */
797 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
798 udelay(5);
799 if (!(readb(&regs->MIICR) & MIICR_WCMD))
800 break;
801 }
802 enable_mii_autopoll(regs);
803
804 if (ww == W_MAX_TIMEOUT)
805 return -ETIMEDOUT;
806 return 0;
807}
808
809/**
810 * set_mii_flow_control - flow control setup
811 * @vptr: velocity interface
812 *
813 * Set up the flow control on this interface according to
814 * the supplied user/eeprom options.
815 */
816static void set_mii_flow_control(struct velocity_info *vptr)
817{
818 /*Enable or Disable PAUSE in ANAR */
819 switch (vptr->options.flow_cntl) {
820 case FLOW_CNTL_TX:
821 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
822 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
823 break;
824
825 case FLOW_CNTL_RX:
826 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
827 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
828 break;
829
830 case FLOW_CNTL_TX_RX:
831 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
832 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
833 break;
834
835 case FLOW_CNTL_DISABLE:
836 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
837 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
838 break;
839 default:
840 break;
841 }
842}
843
844/**
845 * mii_set_auto_on - autonegotiate on
846 * @vptr: velocity
847 *
848 * Enable autonegotation on this interface
849 */
850static void mii_set_auto_on(struct velocity_info *vptr)
851{
852 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
853 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
854 else
855 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
856}
857
858static u32 check_connection_type(struct mac_regs __iomem *regs)
859{
860 u32 status = 0;
861 u8 PHYSR0;
862 u16 ANAR;
863 PHYSR0 = readb(&regs->PHYSR0);
864
865 /*
866 if (!(PHYSR0 & PHYSR0_LINKGD))
867 status|=VELOCITY_LINK_FAIL;
868 */
869
870 if (PHYSR0 & PHYSR0_FDPX)
871 status |= VELOCITY_DUPLEX_FULL;
872
873 if (PHYSR0 & PHYSR0_SPDG)
874 status |= VELOCITY_SPEED_1000;
875 else if (PHYSR0 & PHYSR0_SPD10)
876 status |= VELOCITY_SPEED_10;
877 else
878 status |= VELOCITY_SPEED_100;
879
880 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
881 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
882 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
883 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
884 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
885 status |= VELOCITY_AUTONEG_ENABLE;
886 }
887 }
888
889 return status;
890}
891
892
893
894/**
895 * velocity_set_media_mode - set media mode
896 * @mii_status: old MII link state
897 *
898 * Check the media link state and configure the flow control
899 * PHY and also velocity hardware setup accordingly. In particular
900 * we need to set up CD polling and frame bursting.
901 */
902static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
903{
904 u32 curr_status;
905 struct mac_regs __iomem *regs = vptr->mac_regs;
906
907 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
908 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
909
910 /* Set mii link status */
911 set_mii_flow_control(vptr);
912
913 /*
914 Check if new status is consisent with current status
915 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
916 || (mii_status==curr_status)) {
917 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
918 vptr->mii_status=check_connection_type(vptr->mac_regs);
919 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
920 return 0;
921 }
922 */
923
924 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
925 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
926
927 /*
928 * If connection type is AUTO
929 */
930 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
931 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
932 /* clear force MAC mode bit */
933 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, &regs->CHIPGCR);
934 /* set duplex mode of MAC according to duplex mode of MII */
935 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
936 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
937 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
938
939 /* enable AUTO-NEGO mode */
940 mii_set_auto_on(vptr);
941 } else {
942 u16 ANAR;
943 u8 CHIPGCR;
944
945 /*
946 * 1. if it's 3119, disable frame bursting in halfduplex mode
947 * and enable it in fullduplex mode
948 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
949 * 3. only enable CD heart beat counter in 10HD mode
950 */
951
952 /* set force MAC mode bit */
953 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, &regs->CHIPGCR);
954
955 CHIPGCR = readb(&regs->CHIPGCR);
956 CHIPGCR &= ~CHIPGCR_FCGMII;
957
958 if (mii_status & VELOCITY_DUPLEX_FULL) {
959 CHIPGCR |= CHIPGCR_FCFDX;
960 writeb(CHIPGCR, &regs->CHIPGCR);
961 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
962 if (vptr->rev_id < REV_ID_VT3216_A0)
963 BYTE_REG_BITS_OFF(TCR_TB2BDIS, &regs->TCR);
964 } else {
965 CHIPGCR &= ~CHIPGCR_FCFDX;
966 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
967 writeb(CHIPGCR, &regs->CHIPGCR);
968 if (vptr->rev_id < REV_ID_VT3216_A0)
969 BYTE_REG_BITS_ON(TCR_TB2BDIS, &regs->TCR);
970 }
971
972 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
973
974 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10))
975 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, &regs->TESTCFG);
976 else
977 BYTE_REG_BITS_ON(TESTCFG_HBDIS, &regs->TESTCFG);
978
979 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
980 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
981 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
982 if (mii_status & VELOCITY_SPEED_100) {
983 if (mii_status & VELOCITY_DUPLEX_FULL)
984 ANAR |= ANAR_TXFD;
985 else
986 ANAR |= ANAR_TX;
987 } else {
988 if (mii_status & VELOCITY_DUPLEX_FULL)
989 ANAR |= ANAR_10FD;
990 else
991 ANAR |= ANAR_10;
992 }
993 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
994 /* enable AUTO-NEGO mode */
995 mii_set_auto_on(vptr);
996 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
997 }
998 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
999 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
1000 return VELOCITY_LINK_CHANGE;
1001}
1002
1003/**
1004 * velocity_print_link_status - link status reporting
1005 * @vptr: velocity to report on
1006 *
1007 * Turn the link status of the velocity card into a kernel log
1008 * description of the new link state, detailing speed and duplex
1009 * status
1010 */
1011static void velocity_print_link_status(struct velocity_info *vptr)
1012{
1013
1014 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1015 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1016 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1017 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1018
1019 if (vptr->mii_status & VELOCITY_SPEED_1000)
1020 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1021 else if (vptr->mii_status & VELOCITY_SPEED_100)
1022 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1023 else
1024 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1025
1026 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1027 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1028 else
1029 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1030 } else {
1031 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1032 switch (vptr->options.spd_dpx) {
1033 case SPD_DPX_100_HALF:
1034 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1035 break;
1036 case SPD_DPX_100_FULL:
1037 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1038 break;
1039 case SPD_DPX_10_HALF:
1040 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1041 break;
1042 case SPD_DPX_10_FULL:
1043 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1044 break;
1045 default:
1046 break;
1047 }
1048 }
1049}
1050
1051/**
1052 * enable_flow_control_ability - flow control
1053 * @vptr: veloity to configure
1054 *
1055 * Set up flow control according to the flow control options
1056 * determined by the eeprom/configuration.
1057 */
1058static void enable_flow_control_ability(struct velocity_info *vptr)
1059{
1060
1061 struct mac_regs __iomem *regs = vptr->mac_regs;
1062
1063 switch (vptr->options.flow_cntl) {
1064
1065 case FLOW_CNTL_DEFAULT:
1066 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, &regs->PHYSR0))
1067 writel(CR0_FDXRFCEN, &regs->CR0Set);
1068 else
1069 writel(CR0_FDXRFCEN, &regs->CR0Clr);
1070
1071 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, &regs->PHYSR0))
1072 writel(CR0_FDXTFCEN, &regs->CR0Set);
1073 else
1074 writel(CR0_FDXTFCEN, &regs->CR0Clr);
1075 break;
1076
1077 case FLOW_CNTL_TX:
1078 writel(CR0_FDXTFCEN, &regs->CR0Set);
1079 writel(CR0_FDXRFCEN, &regs->CR0Clr);
1080 break;
1081
1082 case FLOW_CNTL_RX:
1083 writel(CR0_FDXRFCEN, &regs->CR0Set);
1084 writel(CR0_FDXTFCEN, &regs->CR0Clr);
1085 break;
1086
1087 case FLOW_CNTL_TX_RX:
1088 writel(CR0_FDXTFCEN, &regs->CR0Set);
1089 writel(CR0_FDXRFCEN, &regs->CR0Set);
1090 break;
1091
1092 case FLOW_CNTL_DISABLE:
1093 writel(CR0_FDXRFCEN, &regs->CR0Clr);
1094 writel(CR0_FDXTFCEN, &regs->CR0Clr);
1095 break;
1096
1097 default:
1098 break;
1099 }
1100
1101}
1102
1103/**
1104 * velocity_soft_reset - soft reset
1105 * @vptr: velocity to reset
1106 *
1107 * Kick off a soft reset of the velocity adapter and then poll
1108 * until the reset sequence has completed before returning.
1109 */
1110static int velocity_soft_reset(struct velocity_info *vptr)
1111{
1112 struct mac_regs __iomem *regs = vptr->mac_regs;
1113 int i = 0;
1114
1115 writel(CR0_SFRST, &regs->CR0Set);
1116
1117 for (i = 0; i < W_MAX_TIMEOUT; i++) {
1118 udelay(5);
1119 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, &regs->CR0Set))
1120 break;
1121 }
1122
1123 if (i == W_MAX_TIMEOUT) {
1124 writel(CR0_FORSRST, &regs->CR0Set);
1125 /* FIXME: PCI POSTING */
1126 /* delay 2ms */
1127 mdelay(2);
1128 }
1129 return 0;
1130}
1131
1132/**
1133 * velocity_set_multi - filter list change callback
1134 * @dev: network device
1135 *
1136 * Called by the network layer when the filter lists need to change
1137 * for a velocity adapter. Reload the CAMs with the new address
1138 * filter ruleset.
1139 */
1140static void velocity_set_multi(struct net_device *dev)
1141{
1142 struct velocity_info *vptr = netdev_priv(dev);
1143 struct mac_regs __iomem *regs = vptr->mac_regs;
1144 u8 rx_mode;
1145 int i;
1146 struct dev_mc_list *mclist;
1147
1148 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1149 writel(0xffffffff, &regs->MARCAM[0]);
1150 writel(0xffffffff, &regs->MARCAM[4]);
1151 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
1152 } else if ((dev->mc_count > vptr->multicast_limit)
1153 || (dev->flags & IFF_ALLMULTI)) {
1154 writel(0xffffffff, &regs->MARCAM[0]);
1155 writel(0xffffffff, &regs->MARCAM[4]);
1156 rx_mode = (RCR_AM | RCR_AB);
1157 } else {
1158 int offset = MCAM_SIZE - vptr->multicast_limit;
1159 mac_get_cam_mask(regs, vptr->mCAMmask);
1160
1161 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
1162 mac_set_cam(regs, i + offset, mclist->dmi_addr);
1163 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
1164 }
1165
1166 mac_set_cam_mask(regs, vptr->mCAMmask);
1167 rx_mode = RCR_AM | RCR_AB | RCR_AP;
1168 }
1169 if (dev->mtu > 1500)
1170 rx_mode |= RCR_AL;
1171
1172 BYTE_REG_BITS_ON(rx_mode, &regs->RCR);
1173
1174}
1175
1176/*
1177 * MII access , media link mode setting functions
1178 */
1179
1180/**
1181 * mii_init - set up MII
1182 * @vptr: velocity adapter
1183 * @mii_status: links tatus
1184 *
1185 * Set up the PHY for the current link state.
1186 */
1187static void mii_init(struct velocity_info *vptr, u32 mii_status)
1188{
1189 u16 BMCR;
1190
1191 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
1192 case PHYID_CICADA_CS8201:
1193 /*
1194 * Reset to hardware default
1195 */
1196 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1197 /*
1198 * Turn on ECHODIS bit in NWay-forced full mode and turn it
1199 * off it in NWay-forced half mode for NWay-forced v.s.
1200 * legacy-forced issue.
1201 */
1202 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1203 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1204 else
1205 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1206 /*
1207 * Turn on Link/Activity LED enable bit for CIS8201
1208 */
1209 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
1210 break;
1211 case PHYID_VT3216_32BIT:
1212 case PHYID_VT3216_64BIT:
1213 /*
1214 * Reset to hardware default
1215 */
1216 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1217 /*
1218 * Turn on ECHODIS bit in NWay-forced full mode and turn it
1219 * off it in NWay-forced half mode for NWay-forced v.s.
1220 * legacy-forced issue
1221 */
1222 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1223 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1224 else
1225 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1226 break;
1227
1228 case PHYID_MARVELL_1000:
1229 case PHYID_MARVELL_1000S:
1230 /*
1231 * Assert CRS on Transmit
1232 */
1233 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
1234 /*
1235 * Reset to hardware default
1236 */
1237 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1238 break;
1239 default:
1240 ;
1241 }
1242 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
1243 if (BMCR & BMCR_ISO) {
1244 BMCR &= ~BMCR_ISO;
1245 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
1246 }
1247}
1248
1249
1250/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251 * velocity_init_registers - initialise MAC registers
1252 * @vptr: velocity to init
1253 * @type: type of initialisation (hot or cold)
1254 *
1255 * Initialise the MAC on a reset or on first set up on the
1256 * hardware.
1257 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001258static void velocity_init_registers(struct velocity_info *vptr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 enum velocity_init_type type)
1260{
Dave Jonesc4067402009-07-20 17:35:21 +00001261 struct mac_regs __iomem *regs = vptr->mac_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 int i, mii_status;
1263
1264 mac_wol_reset(regs);
1265
1266 switch (type) {
1267 case VELOCITY_INIT_RESET:
1268 case VELOCITY_INIT_WOL:
1269
1270 netif_stop_queue(vptr->dev);
1271
1272 /*
1273 * Reset RX to prevent RX pointer not on the 4X location
1274 */
1275 velocity_rx_reset(vptr);
1276 mac_rx_queue_run(regs);
1277 mac_rx_queue_wake(regs);
1278
1279 mii_status = velocity_get_opt_media_mode(vptr);
1280 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
1281 velocity_print_link_status(vptr);
1282 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
1283 netif_wake_queue(vptr->dev);
1284 }
1285
1286 enable_flow_control_ability(vptr);
1287
1288 mac_clear_isr(regs);
1289 writel(CR0_STOP, &regs->CR0Clr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001290 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291 &regs->CR0Set);
1292
1293 break;
1294
1295 case VELOCITY_INIT_COLD:
1296 default:
1297 /*
1298 * Do reset
1299 */
1300 velocity_soft_reset(vptr);
1301 mdelay(5);
1302
1303 mac_eeprom_reload(regs);
Dave Jonesc4067402009-07-20 17:35:21 +00001304 for (i = 0; i < 6; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
Dave Jonesc4067402009-07-20 17:35:21 +00001306
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307 /*
1308 * clear Pre_ACPI bit.
1309 */
1310 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
1311 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
1312 mac_set_dma_length(regs, vptr->options.DMA_length);
1313
1314 writeb(WOLCFG_SAM | WOLCFG_SAB, &regs->WOLCFGSet);
1315 /*
1316 * Back off algorithm use original IEEE standard
1317 */
1318 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), &regs->CFGB);
1319
1320 /*
1321 * Init CAM filter
1322 */
1323 velocity_init_cam_filter(vptr);
1324
1325 /*
1326 * Set packet filter: Receive directed and broadcast address
1327 */
1328 velocity_set_multi(vptr->dev);
1329
1330 /*
1331 * Enable MII auto-polling
1332 */
1333 enable_mii_autopoll(regs);
1334
1335 vptr->int_mask = INT_MASK_DEF;
1336
Francois Romieu0fe9f152008-07-31 22:10:10 +02001337 writel(vptr->rx.pool_dma, &regs->RDBaseLo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 writew(vptr->options.numrx - 1, &regs->RDCSize);
1339 mac_rx_queue_run(regs);
1340 mac_rx_queue_wake(regs);
1341
1342 writew(vptr->options.numtx - 1, &regs->TDCSize);
1343
Francois Romieu0fe9f152008-07-31 22:10:10 +02001344 for (i = 0; i < vptr->tx.numq; i++) {
1345 writel(vptr->tx.pool_dma[i], &regs->TDBaseLo[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 mac_tx_queue_run(regs, i);
1347 }
1348
1349 init_flow_control_register(vptr);
1350
1351 writel(CR0_STOP, &regs->CR0Clr);
1352 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), &regs->CR0Set);
1353
1354 mii_status = velocity_get_opt_media_mode(vptr);
1355 netif_stop_queue(vptr->dev);
1356
1357 mii_init(vptr, mii_status);
1358
1359 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
1360 velocity_print_link_status(vptr);
1361 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
1362 netif_wake_queue(vptr->dev);
1363 }
1364
1365 enable_flow_control_ability(vptr);
1366 mac_hw_mibs_init(regs);
1367 mac_write_int_mask(vptr->int_mask, regs);
1368 mac_clear_isr(regs);
1369
1370 }
1371}
1372
Dave Jones2cf71d22009-07-23 18:11:12 -07001373static void velocity_give_many_rx_descs(struct velocity_info *vptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374{
Dave Jonesc4067402009-07-20 17:35:21 +00001375 struct mac_regs __iomem *regs = vptr->mac_regs;
Dave Jones2cf71d22009-07-23 18:11:12 -07001376 int avail, dirty, unusable;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377
Dave Jones2cf71d22009-07-23 18:11:12 -07001378 /*
1379 * RD number must be equal to 4X per hardware spec
1380 * (programming guide rev 1.20, p.13)
1381 */
1382 if (vptr->rx.filled < 4)
1383 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384
Dave Jones2cf71d22009-07-23 18:11:12 -07001385 wmb();
1386
1387 unusable = vptr->rx.filled & 0x0003;
1388 dirty = vptr->rx.dirty - unusable;
1389 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
1390 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1391 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 }
1393
Dave Jones2cf71d22009-07-23 18:11:12 -07001394 writew(vptr->rx.filled & 0xfffc, &regs->RBRDU);
1395 vptr->rx.filled = unusable;
1396}
1397
1398/**
1399 * velocity_init_dma_rings - set up DMA rings
1400 * @vptr: Velocity to set up
1401 *
1402 * Allocate PCI mapped DMA rings for the receive and transmit layer
1403 * to use.
1404 */
1405static int velocity_init_dma_rings(struct velocity_info *vptr)
1406{
1407 struct velocity_opt *opt = &vptr->options;
1408 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1409 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1410 struct pci_dev *pdev = vptr->pdev;
1411 dma_addr_t pool_dma;
1412 void *pool;
1413 unsigned int i;
1414
1415 /*
1416 * Allocate all RD/TD rings a single pool.
1417 *
1418 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1419 * alignment
1420 */
1421 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
1422 rx_ring_size, &pool_dma);
1423 if (!pool) {
1424 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1425 vptr->dev->name);
1426 return -ENOMEM;
1427 }
1428
1429 vptr->rx.ring = pool;
1430 vptr->rx.pool_dma = pool_dma;
1431
1432 pool += rx_ring_size;
1433 pool_dma += rx_ring_size;
1434
1435 for (i = 0; i < vptr->tx.numq; i++) {
1436 vptr->tx.rings[i] = pool;
1437 vptr->tx.pool_dma[i] = pool_dma;
1438 pool += tx_ring_size;
1439 pool_dma += tx_ring_size;
1440 }
1441
1442 return 0;
1443}
1444
1445static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1446{
1447 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1448}
1449
1450/**
1451 * velocity_alloc_rx_buf - allocate aligned receive buffer
1452 * @vptr: velocity
1453 * @idx: ring index
1454 *
1455 * Allocate a new full sized buffer for the reception of a frame and
1456 * map it into PCI space for the hardware to use. The hardware
1457 * requires *64* byte alignment of the buffer which makes life
1458 * less fun than would be ideal.
1459 */
1460static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1461{
1462 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1463 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1464
1465 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
1466 if (rd_info->skb == NULL)
1467 return -ENOMEM;
1468
1469 /*
1470 * Do the gymnastics to get the buffer head for data at
1471 * 64byte alignment.
1472 */
1473 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1474 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1475 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1476
1477 /*
1478 * Fill in the descriptor to match
1479 */
1480
1481 *((u32 *) & (rd->rdesc0)) = 0;
1482 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
1483 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1484 rd->pa_high = 0;
1485 return 0;
1486}
1487
1488
1489static int velocity_rx_refill(struct velocity_info *vptr)
1490{
1491 int dirty = vptr->rx.dirty, done = 0;
1492
1493 do {
1494 struct rx_desc *rd = vptr->rx.ring + dirty;
1495
1496 /* Fine for an all zero Rx desc at init time as well */
1497 if (rd->rdesc0.len & OWNED_BY_NIC)
1498 break;
1499
1500 if (!vptr->rx.info[dirty].skb) {
1501 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
1502 break;
1503 }
1504 done++;
1505 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1506 } while (dirty != vptr->rx.curr);
1507
1508 if (done) {
1509 vptr->rx.dirty = dirty;
1510 vptr->rx.filled += done;
1511 }
1512
1513 return done;
1514}
1515
1516/**
1517 * velocity_free_rd_ring - free receive ring
1518 * @vptr: velocity to clean up
1519 *
1520 * Free the receive buffers for each ring slot and any
1521 * attached socket buffers that need to go away.
1522 */
1523static void velocity_free_rd_ring(struct velocity_info *vptr)
1524{
1525 int i;
1526
1527 if (vptr->rx.info == NULL)
1528 return;
1529
1530 for (i = 0; i < vptr->options.numrx; i++) {
1531 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1532 struct rx_desc *rd = vptr->rx.ring + i;
1533
1534 memset(rd, 0, sizeof(*rd));
1535
1536 if (!rd_info->skb)
1537 continue;
1538 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1539 PCI_DMA_FROMDEVICE);
1540 rd_info->skb_dma = 0;
1541
1542 dev_kfree_skb(rd_info->skb);
1543 rd_info->skb = NULL;
1544 }
1545
1546 kfree(vptr->rx.info);
1547 vptr->rx.info = NULL;
1548}
1549
1550
1551
1552/**
1553 * velocity_init_rd_ring - set up receive ring
1554 * @vptr: velocity to configure
1555 *
1556 * Allocate and set up the receive buffers for each ring slot and
1557 * assign them to the network adapter.
1558 */
1559static int velocity_init_rd_ring(struct velocity_info *vptr)
1560{
1561 int ret = -ENOMEM;
1562
1563 vptr->rx.info = kcalloc(vptr->options.numrx,
1564 sizeof(struct velocity_rd_info), GFP_KERNEL);
1565 if (!vptr->rx.info)
1566 goto out;
1567
1568 velocity_init_rx_ring_indexes(vptr);
1569
1570 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
1571 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1572 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1573 velocity_free_rd_ring(vptr);
1574 goto out;
1575 }
1576
1577 ret = 0;
1578out:
1579 return ret;
1580}
1581
1582/**
1583 * velocity_init_td_ring - set up transmit ring
1584 * @vptr: velocity
1585 *
1586 * Set up the transmit ring and chain the ring pointers together.
1587 * Returns zero on success or a negative posix errno code for
1588 * failure.
1589 */
1590static int velocity_init_td_ring(struct velocity_info *vptr)
1591{
1592 dma_addr_t curr;
1593 int j;
1594
1595 /* Init the TD ring entries */
1596 for (j = 0; j < vptr->tx.numq; j++) {
1597 curr = vptr->tx.pool_dma[j];
1598
1599 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
1600 sizeof(struct velocity_td_info),
1601 GFP_KERNEL);
1602 if (!vptr->tx.infos[j]) {
1603 while (--j >= 0)
1604 kfree(vptr->tx.infos[j]);
1605 return -ENOMEM;
1606 }
1607
1608 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 }
1610 return 0;
1611}
1612
Dave Jones2cf71d22009-07-23 18:11:12 -07001613/**
1614 * velocity_free_dma_rings - free PCI ring pointers
1615 * @vptr: Velocity to free from
1616 *
1617 * Clean up the PCI ring buffers allocated to this velocity.
1618 */
1619static void velocity_free_dma_rings(struct velocity_info *vptr)
1620{
1621 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1622 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
1623
1624 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
1625}
1626
1627
1628static int velocity_init_rings(struct velocity_info *vptr, int mtu)
1629{
1630 int ret;
1631
1632 velocity_set_rxbufsize(vptr, mtu);
1633
1634 ret = velocity_init_dma_rings(vptr);
1635 if (ret < 0)
1636 goto out;
1637
1638 ret = velocity_init_rd_ring(vptr);
1639 if (ret < 0)
1640 goto err_free_dma_rings_0;
1641
1642 ret = velocity_init_td_ring(vptr);
1643 if (ret < 0)
1644 goto err_free_rd_ring_1;
1645out:
1646 return ret;
1647
1648err_free_rd_ring_1:
1649 velocity_free_rd_ring(vptr);
1650err_free_dma_rings_0:
1651 velocity_free_dma_rings(vptr);
1652 goto out;
1653}
1654
1655/**
1656 * velocity_free_tx_buf - free transmit buffer
1657 * @vptr: velocity
1658 * @tdinfo: buffer
1659 *
1660 * Release an transmit buffer. If the buffer was preallocated then
1661 * recycle it, if not then unmap the buffer.
1662 */
1663static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1664{
1665 struct sk_buff *skb = tdinfo->skb;
1666 int i;
1667 int pktlen;
1668
1669 /*
1670 * Don't unmap the pre-allocated tx_bufs
1671 */
1672 if (tdinfo->skb_dma) {
1673
1674 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
1675 for (i = 0; i < tdinfo->nskb_dma; i++) {
1676 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], pktlen, PCI_DMA_TODEVICE);
1677 tdinfo->skb_dma[i] = 0;
1678 }
1679 }
1680 dev_kfree_skb_irq(skb);
1681 tdinfo->skb = NULL;
1682}
1683
1684
1685/*
1686 * FIXME: could we merge this with velocity_free_tx_buf ?
1687 */
1688static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1689 int q, int n)
1690{
1691 struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]);
1692 int i;
1693
1694 if (td_info == NULL)
1695 return;
1696
1697 if (td_info->skb) {
1698 for (i = 0; i < td_info->nskb_dma; i++) {
1699 if (td_info->skb_dma[i]) {
1700 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1701 td_info->skb->len, PCI_DMA_TODEVICE);
1702 td_info->skb_dma[i] = 0;
1703 }
1704 }
1705 dev_kfree_skb(td_info->skb);
1706 td_info->skb = NULL;
1707 }
1708}
1709
1710/**
1711 * velocity_free_td_ring - free td ring
1712 * @vptr: velocity
1713 *
1714 * Free up the transmit ring for this particular velocity adapter.
1715 * We free the ring contents but not the ring itself.
1716 */
1717static void velocity_free_td_ring(struct velocity_info *vptr)
1718{
1719 int i, j;
1720
1721 for (j = 0; j < vptr->tx.numq; j++) {
1722 if (vptr->tx.infos[j] == NULL)
1723 continue;
1724 for (i = 0; i < vptr->options.numtx; i++)
1725 velocity_free_td_ring_entry(vptr, j, i);
1726
1727 kfree(vptr->tx.infos[j]);
1728 vptr->tx.infos[j] = NULL;
1729 }
1730}
1731
1732
1733static void velocity_free_rings(struct velocity_info *vptr)
1734{
1735 velocity_free_td_ring(vptr);
1736 velocity_free_rd_ring(vptr);
1737 velocity_free_dma_rings(vptr);
1738}
1739
1740/**
1741 * velocity_error - handle error from controller
1742 * @vptr: velocity
1743 * @status: card status
1744 *
1745 * Process an error report from the hardware and attempt to recover
1746 * the card itself. At the moment we cannot recover from some
1747 * theoretically impossible errors but this could be fixed using
1748 * the pci_device_failed logic to bounce the hardware
1749 *
1750 */
1751static void velocity_error(struct velocity_info *vptr, int status)
1752{
1753
1754 if (status & ISR_TXSTLI) {
1755 struct mac_regs __iomem *regs = vptr->mac_regs;
1756
1757 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(&regs->TDIdx[0]));
1758 BYTE_REG_BITS_ON(TXESR_TDSTR, &regs->TXESR);
1759 writew(TRDCSR_RUN, &regs->TDCSRClr);
1760 netif_stop_queue(vptr->dev);
1761
1762 /* FIXME: port over the pci_device_failed code and use it
1763 here */
1764 }
1765
1766 if (status & ISR_SRCI) {
1767 struct mac_regs __iomem *regs = vptr->mac_regs;
1768 int linked;
1769
1770 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1771 vptr->mii_status = check_connection_type(regs);
1772
1773 /*
1774 * If it is a 3119, disable frame bursting in
1775 * halfduplex mode and enable it in fullduplex
1776 * mode
1777 */
1778 if (vptr->rev_id < REV_ID_VT3216_A0) {
David S. Miller6cdee2f2009-09-02 00:32:56 -07001779 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
Dave Jones2cf71d22009-07-23 18:11:12 -07001780 BYTE_REG_BITS_ON(TCR_TB2BDIS, &regs->TCR);
1781 else
1782 BYTE_REG_BITS_OFF(TCR_TB2BDIS, &regs->TCR);
1783 }
1784 /*
1785 * Only enable CD heart beat counter in 10HD mode
1786 */
1787 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10))
1788 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, &regs->TESTCFG);
1789 else
1790 BYTE_REG_BITS_ON(TESTCFG_HBDIS, &regs->TESTCFG);
1791 }
1792 /*
1793 * Get link status from PHYSR0
1794 */
1795 linked = readb(&regs->PHYSR0) & PHYSR0_LINKGD;
1796
1797 if (linked) {
1798 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1799 netif_carrier_on(vptr->dev);
1800 } else {
1801 vptr->mii_status |= VELOCITY_LINK_FAIL;
1802 netif_carrier_off(vptr->dev);
1803 }
1804
1805 velocity_print_link_status(vptr);
1806 enable_flow_control_ability(vptr);
1807
1808 /*
1809 * Re-enable auto-polling because SRCI will disable
1810 * auto-polling
1811 */
1812
1813 enable_mii_autopoll(regs);
1814
1815 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1816 netif_stop_queue(vptr->dev);
1817 else
1818 netif_wake_queue(vptr->dev);
1819
1820 };
1821 if (status & ISR_MIBFI)
1822 velocity_update_hw_mibs(vptr);
1823 if (status & ISR_LSTEI)
1824 mac_rx_queue_wake(vptr->mac_regs);
1825}
1826
1827/**
1828 * tx_srv - transmit interrupt service
1829 * @vptr; Velocity
1830 * @status:
1831 *
1832 * Scan the queues looking for transmitted packets that
1833 * we can complete and clean up. Update any statistics as
1834 * necessary/
1835 */
1836static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1837{
1838 struct tx_desc *td;
1839 int qnum;
1840 int full = 0;
1841 int idx;
1842 int works = 0;
1843 struct velocity_td_info *tdinfo;
1844 struct net_device_stats *stats = &vptr->dev->stats;
1845
1846 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1847 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
1848 idx = (idx + 1) % vptr->options.numtx) {
1849
1850 /*
1851 * Get Tx Descriptor
1852 */
1853 td = &(vptr->tx.rings[qnum][idx]);
1854 tdinfo = &(vptr->tx.infos[qnum][idx]);
1855
1856 if (td->tdesc0.len & OWNED_BY_NIC)
1857 break;
1858
1859 if ((works++ > 15))
1860 break;
1861
1862 if (td->tdesc0.TSR & TSR0_TERR) {
1863 stats->tx_errors++;
1864 stats->tx_dropped++;
1865 if (td->tdesc0.TSR & TSR0_CDH)
1866 stats->tx_heartbeat_errors++;
1867 if (td->tdesc0.TSR & TSR0_CRS)
1868 stats->tx_carrier_errors++;
1869 if (td->tdesc0.TSR & TSR0_ABT)
1870 stats->tx_aborted_errors++;
1871 if (td->tdesc0.TSR & TSR0_OWC)
1872 stats->tx_window_errors++;
1873 } else {
1874 stats->tx_packets++;
1875 stats->tx_bytes += tdinfo->skb->len;
1876 }
1877 velocity_free_tx_buf(vptr, tdinfo);
1878 vptr->tx.used[qnum]--;
1879 }
1880 vptr->tx.tail[qnum] = idx;
1881
1882 if (AVAIL_TD(vptr, qnum) < 1)
1883 full = 1;
1884 }
1885 /*
1886 * Look to see if we should kick the transmit network
1887 * layer for more work.
1888 */
1889 if (netif_queue_stopped(vptr->dev) && (full == 0)
1890 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1891 netif_wake_queue(vptr->dev);
1892 }
1893 return works;
1894}
1895
1896/**
1897 * velocity_rx_csum - checksum process
1898 * @rd: receive packet descriptor
1899 * @skb: network layer packet buffer
1900 *
1901 * Process the status bits for the received packet and determine
1902 * if the checksum was computed and verified by the hardware
1903 */
1904static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1905{
1906 skb->ip_summed = CHECKSUM_NONE;
1907
1908 if (rd->rdesc1.CSM & CSM_IPKT) {
1909 if (rd->rdesc1.CSM & CSM_IPOK) {
1910 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1911 (rd->rdesc1.CSM & CSM_UDPKT)) {
1912 if (!(rd->rdesc1.CSM & CSM_TUPOK))
1913 return;
1914 }
1915 skb->ip_summed = CHECKSUM_UNNECESSARY;
1916 }
1917 }
1918}
1919
1920/**
1921 * velocity_rx_copy - in place Rx copy for small packets
1922 * @rx_skb: network layer packet buffer candidate
1923 * @pkt_size: received data size
1924 * @rd: receive packet descriptor
1925 * @dev: network device
1926 *
1927 * Replace the current skb that is scheduled for Rx processing by a
1928 * shorter, immediatly allocated skb, if the received packet is small
1929 * enough. This function returns a negative value if the received
1930 * packet is too big or if memory is exhausted.
1931 */
1932static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1933 struct velocity_info *vptr)
1934{
1935 int ret = -1;
1936 if (pkt_size < rx_copybreak) {
1937 struct sk_buff *new_skb;
1938
Eric Dumazet89d71a62009-10-13 05:34:20 +00001939 new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size);
Dave Jones2cf71d22009-07-23 18:11:12 -07001940 if (new_skb) {
1941 new_skb->ip_summed = rx_skb[0]->ip_summed;
Dave Jones2cf71d22009-07-23 18:11:12 -07001942 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1943 *rx_skb = new_skb;
1944 ret = 0;
1945 }
1946
1947 }
1948 return ret;
1949}
1950
1951/**
1952 * velocity_iph_realign - IP header alignment
1953 * @vptr: velocity we are handling
1954 * @skb: network layer packet buffer
1955 * @pkt_size: received data size
1956 *
1957 * Align IP header on a 2 bytes boundary. This behavior can be
1958 * configured by the user.
1959 */
1960static inline void velocity_iph_realign(struct velocity_info *vptr,
1961 struct sk_buff *skb, int pkt_size)
1962{
1963 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1964 memmove(skb->data + 2, skb->data, pkt_size);
1965 skb_reserve(skb, 2);
1966 }
1967}
1968
1969
1970/**
1971 * velocity_receive_frame - received packet processor
1972 * @vptr: velocity we are handling
1973 * @idx: ring index
1974 *
1975 * A packet has arrived. We process the packet and if appropriate
1976 * pass the frame up the network stack
1977 */
1978static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1979{
1980 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1981 struct net_device_stats *stats = &vptr->dev->stats;
1982 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1983 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1984 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1985 struct sk_buff *skb;
1986
1987 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1988 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1989 stats->rx_length_errors++;
1990 return -EINVAL;
1991 }
1992
1993 if (rd->rdesc0.RSR & RSR_MAR)
1994 stats->multicast++;
1995
1996 skb = rd_info->skb;
1997
1998 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1999 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
2000
2001 /*
2002 * Drop frame not meeting IEEE 802.3
2003 */
2004
2005 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
2006 if (rd->rdesc0.RSR & RSR_RL) {
2007 stats->rx_length_errors++;
2008 return -EINVAL;
2009 }
2010 }
2011
2012 pci_action = pci_dma_sync_single_for_device;
2013
2014 velocity_rx_csum(rd, skb);
2015
2016 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
2017 velocity_iph_realign(vptr, skb, pkt_len);
2018 pci_action = pci_unmap_single;
2019 rd_info->skb = NULL;
2020 }
2021
2022 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
2023 PCI_DMA_FROMDEVICE);
2024
2025 skb_put(skb, pkt_len - 4);
2026 skb->protocol = eth_type_trans(skb, vptr->dev);
2027
2028 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
2029 vlan_hwaccel_rx(skb, vptr->vlgrp,
2030 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
2031 } else
2032 netif_rx(skb);
2033
2034 stats->rx_bytes += pkt_len;
2035
2036 return 0;
2037}
2038
2039
2040/**
2041 * velocity_rx_srv - service RX interrupt
2042 * @vptr: velocity
2043 * @status: adapter status (unused)
2044 *
2045 * Walk the receive ring of the velocity adapter and remove
2046 * any received packets from the receive queue. Hand the ring
2047 * slots back to the adapter for reuse.
2048 */
2049static int velocity_rx_srv(struct velocity_info *vptr, int status)
2050{
2051 struct net_device_stats *stats = &vptr->dev->stats;
2052 int rd_curr = vptr->rx.curr;
2053 int works = 0;
2054
2055 do {
2056 struct rx_desc *rd = vptr->rx.ring + rd_curr;
2057
2058 if (!vptr->rx.info[rd_curr].skb)
2059 break;
2060
2061 if (rd->rdesc0.len & OWNED_BY_NIC)
2062 break;
2063
2064 rmb();
2065
2066 /*
2067 * Don't drop CE or RL error frame although RXOK is off
2068 */
2069 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
2070 if (velocity_receive_frame(vptr, rd_curr) < 0)
2071 stats->rx_dropped++;
2072 } else {
2073 if (rd->rdesc0.RSR & RSR_CRC)
2074 stats->rx_crc_errors++;
2075 if (rd->rdesc0.RSR & RSR_FAE)
2076 stats->rx_frame_errors++;
2077
2078 stats->rx_dropped++;
2079 }
2080
2081 rd->size |= RX_INTEN;
2082
2083 rd_curr++;
2084 if (rd_curr >= vptr->options.numrx)
2085 rd_curr = 0;
2086 } while (++works <= 15);
2087
2088 vptr->rx.curr = rd_curr;
2089
2090 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
2091 velocity_give_many_rx_descs(vptr);
2092
2093 VAR_USED(stats);
2094 return works;
2095}
2096
2097
2098/**
2099 * velocity_intr - interrupt callback
2100 * @irq: interrupt number
2101 * @dev_instance: interrupting device
2102 *
2103 * Called whenever an interrupt is generated by the velocity
2104 * adapter IRQ line. We may not be the source of the interrupt
2105 * and need to identify initially if we are, and if not exit as
2106 * efficiently as possible.
2107 */
2108static irqreturn_t velocity_intr(int irq, void *dev_instance)
2109{
2110 struct net_device *dev = dev_instance;
2111 struct velocity_info *vptr = netdev_priv(dev);
2112 u32 isr_status;
2113 int max_count = 0;
2114
2115
2116 spin_lock(&vptr->lock);
2117 isr_status = mac_read_isr(vptr->mac_regs);
2118
2119 /* Not us ? */
2120 if (isr_status == 0) {
2121 spin_unlock(&vptr->lock);
2122 return IRQ_NONE;
2123 }
2124
2125 mac_disable_int(vptr->mac_regs);
2126
2127 /*
2128 * Keep processing the ISR until we have completed
2129 * processing and the isr_status becomes zero
2130 */
2131
2132 while (isr_status != 0) {
2133 mac_write_isr(vptr->mac_regs, isr_status);
2134 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2135 velocity_error(vptr, isr_status);
2136 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2137 max_count += velocity_rx_srv(vptr, isr_status);
2138 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2139 max_count += velocity_tx_srv(vptr, isr_status);
2140 isr_status = mac_read_isr(vptr->mac_regs);
2141 if (max_count > vptr->options.int_works) {
2142 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2143 dev->name);
2144 max_count = 0;
2145 }
2146 }
2147 spin_unlock(&vptr->lock);
2148 mac_enable_int(vptr->mac_regs);
2149 return IRQ_HANDLED;
2150
2151}
2152
2153/**
2154 * velocity_open - interface activation callback
2155 * @dev: network layer device to open
2156 *
2157 * Called when the network layer brings the interface up. Returns
2158 * a negative posix error code on failure, or zero on success.
2159 *
2160 * All the ring allocation and set up is done on open for this
2161 * adapter to minimise memory usage when inactive
2162 */
2163static int velocity_open(struct net_device *dev)
2164{
2165 struct velocity_info *vptr = netdev_priv(dev);
2166 int ret;
2167
2168 ret = velocity_init_rings(vptr, dev->mtu);
2169 if (ret < 0)
2170 goto out;
2171
2172 /* Ensure chip is running */
2173 pci_set_power_state(vptr->pdev, PCI_D0);
2174
2175 velocity_give_many_rx_descs(vptr);
2176
2177 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2178
Julia Lawall1ede9b52009-11-18 08:24:13 +00002179 ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED,
Dave Jones2cf71d22009-07-23 18:11:12 -07002180 dev->name, dev);
2181 if (ret < 0) {
2182 /* Power down the chip */
2183 pci_set_power_state(vptr->pdev, PCI_D3hot);
2184 velocity_free_rings(vptr);
2185 goto out;
2186 }
2187
2188 mac_enable_int(vptr->mac_regs);
2189 netif_start_queue(dev);
2190 vptr->flags |= VELOCITY_FLAGS_OPENED;
2191out:
2192 return ret;
2193}
2194
2195/**
2196 * velocity_shutdown - shut down the chip
2197 * @vptr: velocity to deactivate
2198 *
2199 * Shuts down the internal operations of the velocity and
2200 * disables interrupts, autopolling, transmit and receive
2201 */
2202static void velocity_shutdown(struct velocity_info *vptr)
2203{
2204 struct mac_regs __iomem *regs = vptr->mac_regs;
2205 mac_disable_int(regs);
2206 writel(CR0_STOP, &regs->CR0Set);
2207 writew(0xFFFF, &regs->TDCSRClr);
2208 writeb(0xFF, &regs->RDCSRClr);
2209 safe_disable_mii_autopoll(regs);
2210 mac_clear_isr(regs);
2211}
2212
2213/**
2214 * velocity_change_mtu - MTU change callback
2215 * @dev: network device
2216 * @new_mtu: desired MTU
2217 *
2218 * Handle requests from the networking layer for MTU change on
2219 * this interface. It gets called on a change by the network layer.
2220 * Return zero for success or negative posix error code.
2221 */
2222static int velocity_change_mtu(struct net_device *dev, int new_mtu)
2223{
2224 struct velocity_info *vptr = netdev_priv(dev);
2225 int ret = 0;
2226
2227 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
2228 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
2229 vptr->dev->name);
2230 ret = -EINVAL;
2231 goto out_0;
2232 }
2233
2234 if (!netif_running(dev)) {
2235 dev->mtu = new_mtu;
2236 goto out_0;
2237 }
2238
2239 if (dev->mtu != new_mtu) {
2240 struct velocity_info *tmp_vptr;
2241 unsigned long flags;
2242 struct rx_info rx;
2243 struct tx_info tx;
2244
2245 tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL);
2246 if (!tmp_vptr) {
2247 ret = -ENOMEM;
2248 goto out_0;
2249 }
2250
2251 tmp_vptr->dev = dev;
2252 tmp_vptr->pdev = vptr->pdev;
2253 tmp_vptr->options = vptr->options;
2254 tmp_vptr->tx.numq = vptr->tx.numq;
2255
2256 ret = velocity_init_rings(tmp_vptr, new_mtu);
2257 if (ret < 0)
2258 goto out_free_tmp_vptr_1;
2259
2260 spin_lock_irqsave(&vptr->lock, flags);
2261
2262 netif_stop_queue(dev);
2263 velocity_shutdown(vptr);
2264
2265 rx = vptr->rx;
2266 tx = vptr->tx;
2267
2268 vptr->rx = tmp_vptr->rx;
2269 vptr->tx = tmp_vptr->tx;
2270
2271 tmp_vptr->rx = rx;
2272 tmp_vptr->tx = tx;
2273
2274 dev->mtu = new_mtu;
2275
2276 velocity_give_many_rx_descs(vptr);
2277
2278 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2279
2280 mac_enable_int(vptr->mac_regs);
2281 netif_start_queue(dev);
2282
2283 spin_unlock_irqrestore(&vptr->lock, flags);
2284
2285 velocity_free_rings(tmp_vptr);
2286
2287out_free_tmp_vptr_1:
2288 kfree(tmp_vptr);
2289 }
2290out_0:
2291 return ret;
2292}
2293
2294/**
2295 * velocity_mii_ioctl - MII ioctl handler
2296 * @dev: network device
2297 * @ifr: the ifreq block for the ioctl
2298 * @cmd: the command
2299 *
2300 * Process MII requests made via ioctl from the network layer. These
2301 * are used by tools like kudzu to interrogate the link state of the
2302 * hardware
2303 */
2304static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2305{
2306 struct velocity_info *vptr = netdev_priv(dev);
2307 struct mac_regs __iomem *regs = vptr->mac_regs;
2308 unsigned long flags;
2309 struct mii_ioctl_data *miidata = if_mii(ifr);
2310 int err;
2311
2312 switch (cmd) {
2313 case SIOCGMIIPHY:
2314 miidata->phy_id = readb(&regs->MIIADR) & 0x1f;
2315 break;
2316 case SIOCGMIIREG:
Dave Jones2cf71d22009-07-23 18:11:12 -07002317 if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
2318 return -ETIMEDOUT;
2319 break;
2320 case SIOCSMIIREG:
Dave Jones2cf71d22009-07-23 18:11:12 -07002321 spin_lock_irqsave(&vptr->lock, flags);
2322 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
2323 spin_unlock_irqrestore(&vptr->lock, flags);
2324 check_connection_type(vptr->mac_regs);
2325 if (err)
2326 return err;
2327 break;
2328 default:
2329 return -EOPNOTSUPP;
2330 }
2331 return 0;
2332}
2333
2334
2335/**
2336 * velocity_ioctl - ioctl entry point
2337 * @dev: network device
2338 * @rq: interface request ioctl
2339 * @cmd: command code
2340 *
2341 * Called when the user issues an ioctl request to the network
2342 * device in question. The velocity interface supports MII.
2343 */
2344static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2345{
2346 struct velocity_info *vptr = netdev_priv(dev);
2347 int ret;
2348
2349 /* If we are asked for information and the device is power
2350 saving then we need to bring the device back up to talk to it */
2351
2352 if (!netif_running(dev))
2353 pci_set_power_state(vptr->pdev, PCI_D0);
2354
2355 switch (cmd) {
2356 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2357 case SIOCGMIIREG: /* Read MII PHY register. */
2358 case SIOCSMIIREG: /* Write to MII PHY register. */
2359 ret = velocity_mii_ioctl(dev, rq, cmd);
2360 break;
2361
2362 default:
2363 ret = -EOPNOTSUPP;
2364 }
2365 if (!netif_running(dev))
2366 pci_set_power_state(vptr->pdev, PCI_D3hot);
2367
2368
2369 return ret;
2370}
2371
2372/**
2373 * velocity_get_status - statistics callback
2374 * @dev: network device
2375 *
2376 * Callback from the network layer to allow driver statistics
2377 * to be resynchronized with hardware collected state. In the
2378 * case of the velocity we need to pull the MIB counters from
2379 * the hardware into the counters before letting the network
2380 * layer display them.
2381 */
2382static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2383{
2384 struct velocity_info *vptr = netdev_priv(dev);
2385
2386 /* If the hardware is down, don't touch MII */
2387 if (!netif_running(dev))
2388 return &dev->stats;
2389
2390 spin_lock_irq(&vptr->lock);
2391 velocity_update_hw_mibs(vptr);
2392 spin_unlock_irq(&vptr->lock);
2393
2394 dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2395 dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2396 dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2397
2398// unsigned long rx_dropped; /* no space in linux buffers */
2399 dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2400 /* detailed rx_errors: */
2401// unsigned long rx_length_errors;
2402// unsigned long rx_over_errors; /* receiver ring buff overflow */
2403 dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2404// unsigned long rx_frame_errors; /* recv'd frame alignment error */
2405// unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2406// unsigned long rx_missed_errors; /* receiver missed packet */
2407
2408 /* detailed tx_errors */
2409// unsigned long tx_fifo_errors;
2410
2411 return &dev->stats;
2412}
2413
2414/**
2415 * velocity_close - close adapter callback
2416 * @dev: network device
2417 *
2418 * Callback from the network layer when the velocity is being
2419 * deactivated by the network layer
2420 */
2421static int velocity_close(struct net_device *dev)
2422{
2423 struct velocity_info *vptr = netdev_priv(dev);
2424
2425 netif_stop_queue(dev);
2426 velocity_shutdown(vptr);
2427
2428 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2429 velocity_get_ip(vptr);
2430 if (dev->irq != 0)
2431 free_irq(dev->irq, dev);
2432
2433 /* Power down the chip */
2434 pci_set_power_state(vptr->pdev, PCI_D3hot);
2435
2436 velocity_free_rings(vptr);
2437
2438 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2439 return 0;
2440}
2441
2442/**
2443 * velocity_xmit - transmit packet callback
2444 * @skb: buffer to transmit
2445 * @dev: network device
2446 *
2447 * Called by the networ layer to request a packet is queued to
2448 * the velocity. Returns zero on success.
2449 */
Stephen Hemminger613573252009-08-31 19:50:58 +00002450static netdev_tx_t velocity_xmit(struct sk_buff *skb,
2451 struct net_device *dev)
Dave Jones2cf71d22009-07-23 18:11:12 -07002452{
2453 struct velocity_info *vptr = netdev_priv(dev);
2454 int qnum = 0;
2455 struct tx_desc *td_ptr;
2456 struct velocity_td_info *tdinfo;
2457 unsigned long flags;
2458 int pktlen;
2459 __le16 len;
2460 int index;
2461
2462 if (skb_padto(skb, ETH_ZLEN))
2463 goto out;
2464 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
2465
2466 len = cpu_to_le16(pktlen);
2467
2468 spin_lock_irqsave(&vptr->lock, flags);
2469
2470 index = vptr->tx.curr[qnum];
2471 td_ptr = &(vptr->tx.rings[qnum][index]);
2472 tdinfo = &(vptr->tx.infos[qnum][index]);
2473
2474 td_ptr->tdesc1.TCR = TCR0_TIC;
2475 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2476
2477 /*
2478 * Map the linear network buffer into PCI space and
2479 * add it to the transmit ring.
2480 */
2481 tdinfo->skb = skb;
2482 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2483 td_ptr->tdesc0.len = len;
2484 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2485 td_ptr->td_buf[0].pa_high = 0;
2486 td_ptr->td_buf[0].size = len;
2487 tdinfo->nskb_dma = 1;
2488
2489 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2490
2491 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2492 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2493 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2494 }
2495
2496 /*
2497 * Handle hardware checksum
2498 */
2499 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2500 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2501 const struct iphdr *ip = ip_hdr(skb);
2502 if (ip->protocol == IPPROTO_TCP)
2503 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2504 else if (ip->protocol == IPPROTO_UDP)
2505 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2506 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2507 }
2508 {
2509
2510 int prev = index - 1;
2511
2512 if (prev < 0)
2513 prev = vptr->options.numtx - 1;
2514 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2515 vptr->tx.used[qnum]++;
2516 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
2517
2518 if (AVAIL_TD(vptr, qnum) < 1)
2519 netif_stop_queue(dev);
2520
2521 td_ptr = &(vptr->tx.rings[qnum][prev]);
2522 td_ptr->td_buf[0].size |= TD_QUEUE;
2523 mac_tx_queue_wake(vptr->mac_regs, qnum);
2524 }
2525 dev->trans_start = jiffies;
2526 spin_unlock_irqrestore(&vptr->lock, flags);
2527out:
2528 return NETDEV_TX_OK;
2529}
2530
2531
Stephen Hemminger39a11bd2008-11-19 22:19:33 -08002532static const struct net_device_ops velocity_netdev_ops = {
2533 .ndo_open = velocity_open,
2534 .ndo_stop = velocity_close,
Stephen Hemminger00829822008-11-20 20:14:53 -08002535 .ndo_start_xmit = velocity_xmit,
Stephen Hemminger39a11bd2008-11-19 22:19:33 -08002536 .ndo_get_stats = velocity_get_stats,
2537 .ndo_validate_addr = eth_validate_addr,
Stephen Hemmingerfe96aaa2009-01-09 11:13:14 +00002538 .ndo_set_mac_address = eth_mac_addr,
Stephen Hemminger39a11bd2008-11-19 22:19:33 -08002539 .ndo_set_multicast_list = velocity_set_multi,
2540 .ndo_change_mtu = velocity_change_mtu,
2541 .ndo_do_ioctl = velocity_ioctl,
2542 .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid,
2543 .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid,
2544 .ndo_vlan_rx_register = velocity_vlan_rx_register,
2545};
2546
Linus Torvalds1da177e2005-04-16 15:20:36 -07002547/**
Dave Jones2cf71d22009-07-23 18:11:12 -07002548 * velocity_init_info - init private data
2549 * @pdev: PCI device
2550 * @vptr: Velocity info
2551 * @info: Board type
2552 *
2553 * Set up the initial velocity_info struct for the device that has been
2554 * discovered.
2555 */
2556static void __devinit velocity_init_info(struct pci_dev *pdev,
2557 struct velocity_info *vptr,
2558 const struct velocity_info_tbl *info)
2559{
2560 memset(vptr, 0, sizeof(struct velocity_info));
2561
2562 vptr->pdev = pdev;
2563 vptr->chip_id = info->chip_id;
2564 vptr->tx.numq = info->txqueue;
2565 vptr->multicast_limit = MCAM_SIZE;
2566 spin_lock_init(&vptr->lock);
Dave Jones2cf71d22009-07-23 18:11:12 -07002567}
2568
2569/**
2570 * velocity_get_pci_info - retrieve PCI info for device
2571 * @vptr: velocity device
2572 * @pdev: PCI device it matches
2573 *
2574 * Retrieve the PCI configuration space data that interests us from
2575 * the kernel PCI layer
2576 */
2577static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
2578{
2579 vptr->rev_id = pdev->revision;
2580
2581 pci_set_master(pdev);
2582
2583 vptr->ioaddr = pci_resource_start(pdev, 0);
2584 vptr->memaddr = pci_resource_start(pdev, 1);
2585
2586 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
2587 dev_err(&pdev->dev,
2588 "region #0 is not an I/O resource, aborting.\n");
2589 return -EINVAL;
2590 }
2591
2592 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
2593 dev_err(&pdev->dev,
2594 "region #1 is an I/O resource, aborting.\n");
2595 return -EINVAL;
2596 }
2597
2598 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
2599 dev_err(&pdev->dev, "region #1 is too small.\n");
2600 return -EINVAL;
2601 }
2602 vptr->pdev = pdev;
2603
2604 return 0;
2605}
2606
2607/**
2608 * velocity_print_info - per driver data
2609 * @vptr: velocity
2610 *
2611 * Print per driver data as the kernel driver finds Velocity
2612 * hardware
2613 */
2614static void __devinit velocity_print_info(struct velocity_info *vptr)
2615{
2616 struct net_device *dev = vptr->dev;
2617
2618 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
2619 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
2620 dev->name,
2621 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
2622 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
2623}
2624
2625static u32 velocity_get_link(struct net_device *dev)
2626{
2627 struct velocity_info *vptr = netdev_priv(dev);
2628 struct mac_regs __iomem *regs = vptr->mac_regs;
2629 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, &regs->PHYSR0) ? 1 : 0;
2630}
2631
2632
2633/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634 * velocity_found1 - set up discovered velocity card
2635 * @pdev: PCI device
2636 * @ent: PCI device table entry that matched
2637 *
2638 * Configure a discovered adapter from scratch. Return a negative
2639 * errno error code on failure paths.
2640 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002641static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
2642{
2643 static int first = 1;
2644 struct net_device *dev;
2645 int i;
Sven Hartge07b5f6a2008-10-23 13:03:44 +00002646 const char *drv_string;
Jeff Garzikcabb7662006-06-27 09:25:28 -04002647 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648 struct velocity_info *vptr;
Dave Jonesc4067402009-07-20 17:35:21 +00002649 struct mac_regs __iomem *regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002650 int ret = -ENOMEM;
2651
Jeff Garzike54f4892006-06-27 09:20:08 -04002652 /* FIXME: this driver, like almost all other ethernet drivers,
2653 * can support more than MAX_UNITS.
2654 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002655 if (velocity_nics >= MAX_UNITS) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002656 dev_notice(&pdev->dev, "already found %d NICs.\n",
Jeff Garzike54f4892006-06-27 09:20:08 -04002657 velocity_nics);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002658 return -ENODEV;
2659 }
2660
2661 dev = alloc_etherdev(sizeof(struct velocity_info));
Jeff Garzike54f4892006-06-27 09:20:08 -04002662 if (!dev) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -04002663 dev_err(&pdev->dev, "allocate net device failed.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664 goto out;
2665 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002666
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667 /* Chain it all together */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002668
Linus Torvalds1da177e2005-04-16 15:20:36 -07002669 SET_NETDEV_DEV(dev, &pdev->dev);
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002670 vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002671
2672
2673 if (first) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002674 printk(KERN_INFO "%s Ver. %s\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002675 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
2676 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
2677 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
2678 first = 0;
2679 }
2680
2681 velocity_init_info(pdev, vptr, info);
2682
2683 vptr->dev = dev;
2684
2685 dev->irq = pdev->irq;
2686
2687 ret = pci_enable_device(pdev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002688 if (ret < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002689 goto err_free_dev;
2690
2691 ret = velocity_get_pci_info(vptr, pdev);
2692 if (ret < 0) {
Jeff Garzike54f4892006-06-27 09:20:08 -04002693 /* error message already printed */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002694 goto err_disable;
2695 }
2696
2697 ret = pci_request_regions(pdev, VELOCITY_NAME);
2698 if (ret < 0) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -04002699 dev_err(&pdev->dev, "No PCI resources.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 goto err_disable;
2701 }
2702
Jeff Garzikcabb7662006-06-27 09:25:28 -04002703 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002704 if (regs == NULL) {
2705 ret = -EIO;
2706 goto err_release_res;
2707 }
2708
2709 vptr->mac_regs = regs;
2710
2711 mac_wol_reset(regs);
2712
2713 dev->base_addr = vptr->ioaddr;
2714
2715 for (i = 0; i < 6; i++)
2716 dev->dev_addr[i] = readb(&regs->PAR[i]);
2717
2718
Sven Hartge07b5f6a2008-10-23 13:03:44 +00002719 drv_string = dev_driver_string(&pdev->dev);
2720
2721 velocity_get_options(&vptr->options, velocity_nics, drv_string);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002722
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002723 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002724 * Mask out the options cannot be set to the chip
2725 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002726
Linus Torvalds1da177e2005-04-16 15:20:36 -07002727 vptr->options.flags &= info->flags;
2728
2729 /*
2730 * Enable the chip specified capbilities
2731 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002732
Linus Torvalds1da177e2005-04-16 15:20:36 -07002733 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
2734
2735 vptr->wol_opts = vptr->options.wol_opts;
2736 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2737
2738 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
2739
2740 dev->irq = pdev->irq;
Stephen Hemminger39a11bd2008-11-19 22:19:33 -08002741 dev->netdev_ops = &velocity_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002742 dev->ethtool_ops = &velocity_ethtool_ops;
Stephen Hemminger501e4d22007-08-24 13:56:49 -07002743
Francois Romieud4f73c82008-04-24 23:32:33 +02002744 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
2745 NETIF_F_HW_VLAN_RX;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002746
Stephen Hemminger501e4d22007-08-24 13:56:49 -07002747 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
John W. Linville9f3f46b2005-12-09 10:36:09 -05002748 dev->features |= NETIF_F_IP_CSUM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002749
2750 ret = register_netdev(dev);
2751 if (ret < 0)
2752 goto err_iounmap;
2753
Séguier Régisd3b238a2009-06-16 11:25:49 +00002754 if (!velocity_get_link(dev)) {
Francois Romieu8a22ddd2006-06-23 00:47:06 +02002755 netif_carrier_off(dev);
Séguier Régisd3b238a2009-06-16 11:25:49 +00002756 vptr->mii_status |= VELOCITY_LINK_FAIL;
2757 }
Francois Romieu8a22ddd2006-06-23 00:47:06 +02002758
Linus Torvalds1da177e2005-04-16 15:20:36 -07002759 velocity_print_info(vptr);
2760 pci_set_drvdata(pdev, dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002761
Linus Torvalds1da177e2005-04-16 15:20:36 -07002762 /* and leave the chip powered down */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002763
Linus Torvalds1da177e2005-04-16 15:20:36 -07002764 pci_set_power_state(pdev, PCI_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002765 velocity_nics++;
2766out:
2767 return ret;
2768
2769err_iounmap:
2770 iounmap(regs);
2771err_release_res:
2772 pci_release_regions(pdev);
2773err_disable:
2774 pci_disable_device(pdev);
2775err_free_dev:
2776 free_netdev(dev);
2777 goto out;
2778}
2779
Dave Jones2cf71d22009-07-23 18:11:12 -07002780
2781#ifdef CONFIG_PM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002782/**
Dave Jones2cf71d22009-07-23 18:11:12 -07002783 * wol_calc_crc - WOL CRC
2784 * @pattern: data pattern
2785 * @mask_pattern: mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002786 *
Dave Jones2cf71d22009-07-23 18:11:12 -07002787 * Compute the wake on lan crc hashes for the packet header
2788 * we are interested in.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002789 */
Dave Jones2cf71d22009-07-23 18:11:12 -07002790static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002791{
Dave Jones2cf71d22009-07-23 18:11:12 -07002792 u16 crc = 0xFFFF;
2793 u8 mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002794 int i, j;
2795
Dave Jones2cf71d22009-07-23 18:11:12 -07002796 for (i = 0; i < size; i++) {
2797 mask = mask_pattern[i];
2798
2799 /* Skip this loop if the mask equals to zero */
2800 if (mask == 0x00)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002801 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002802
Dave Jones2cf71d22009-07-23 18:11:12 -07002803 for (j = 0; j < 8; j++) {
2804 if ((mask & 0x01) == 0) {
2805 mask >>= 1;
2806 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002807 }
Dave Jones2cf71d22009-07-23 18:11:12 -07002808 mask >>= 1;
2809 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002810 }
2811 }
Dave Jones2cf71d22009-07-23 18:11:12 -07002812 /* Finally, invert the result once to get the correct data */
2813 crc = ~crc;
2814 return bitrev32(crc) >> 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002815}
2816
2817/**
Dave Jones2cf71d22009-07-23 18:11:12 -07002818 * velocity_set_wol - set up for wake on lan
2819 * @vptr: velocity to set WOL status on
Linus Torvalds1da177e2005-04-16 15:20:36 -07002820 *
Dave Jones2cf71d22009-07-23 18:11:12 -07002821 * Set a card up for wake on lan either by unicast or by
2822 * ARP packet.
2823 *
2824 * FIXME: check static buffer is safe here
Linus Torvalds1da177e2005-04-16 15:20:36 -07002825 */
Dave Jones2cf71d22009-07-23 18:11:12 -07002826static int velocity_set_wol(struct velocity_info *vptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002827{
Dave Jonesc4067402009-07-20 17:35:21 +00002828 struct mac_regs __iomem *regs = vptr->mac_regs;
Dave Jones2cf71d22009-07-23 18:11:12 -07002829 static u8 buf[256];
2830 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002831
Dave Jones2cf71d22009-07-23 18:11:12 -07002832 static u32 mask_pattern[2][4] = {
2833 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
2834 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
2835 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002836
Dave Jones2cf71d22009-07-23 18:11:12 -07002837 writew(0xFFFF, &regs->WOLCRClr);
2838 writeb(WOLCFG_SAB | WOLCFG_SAM, &regs->WOLCFGSet);
2839 writew(WOLCR_MAGIC_EN, &regs->WOLCRSet);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002840
Dave Jones2cf71d22009-07-23 18:11:12 -07002841 /*
2842 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2843 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), &regs->WOLCRSet);
2844 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002845
Dave Jones2cf71d22009-07-23 18:11:12 -07002846 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2847 writew(WOLCR_UNICAST_EN, &regs->WOLCRSet);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002848
Dave Jones2cf71d22009-07-23 18:11:12 -07002849 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
2850 struct arp_packet *arp = (struct arp_packet *) buf;
2851 u16 crc;
2852 memset(buf, 0, sizeof(struct arp_packet) + 7);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002853
Dave Jones2cf71d22009-07-23 18:11:12 -07002854 for (i = 0; i < 4; i++)
2855 writel(mask_pattern[0][i], &regs->ByteMask[0][i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856
Dave Jones2cf71d22009-07-23 18:11:12 -07002857 arp->type = htons(ETH_P_ARP);
2858 arp->ar_op = htons(1);
2859
2860 memcpy(arp->ar_tip, vptr->ip_addr, 4);
2861
2862 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
2863 (u8 *) & mask_pattern[0][0]);
2864
2865 writew(crc, &regs->PatternCRC[0]);
2866 writew(WOLCR_ARP_EN, &regs->WOLCRSet);
2867 }
2868
2869 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, &regs->PWCFGSet);
2870 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, &regs->PWCFGSet);
2871
2872 writew(0x0FFF, &regs->WOLSRClr);
2873
2874 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
2875 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
2876 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2877
2878 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2879 }
2880
2881 if (vptr->mii_status & VELOCITY_SPEED_1000)
2882 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2883
2884 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, &regs->CHIPGCR);
2885
2886 {
2887 u8 GCR;
2888 GCR = readb(&regs->CHIPGCR);
2889 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
2890 writeb(GCR, &regs->CHIPGCR);
2891 }
2892
2893 BYTE_REG_BITS_OFF(ISR_PWEI, &regs->ISR);
2894 /* Turn on SWPTAG just before entering power mode */
2895 BYTE_REG_BITS_ON(STICKHW_SWPTAG, &regs->STICKHW);
2896 /* Go to bed ..... */
2897 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), &regs->STICKHW);
2898
Linus Torvalds1da177e2005-04-16 15:20:36 -07002899 return 0;
2900}
2901
2902/**
Dave Jones2cf71d22009-07-23 18:11:12 -07002903 * velocity_save_context - save registers
2904 * @vptr: velocity
2905 * @context: buffer for stored context
Linus Torvalds1da177e2005-04-16 15:20:36 -07002906 *
Dave Jones2cf71d22009-07-23 18:11:12 -07002907 * Retrieve the current configuration from the velocity hardware
2908 * and stash it in the context structure, for use by the context
2909 * restore functions. This allows us to save things we need across
2910 * power down states
Linus Torvalds1da177e2005-04-16 15:20:36 -07002911 */
Dave Jones2cf71d22009-07-23 18:11:12 -07002912static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002913{
Dave Jones2cf71d22009-07-23 18:11:12 -07002914 struct mac_regs __iomem *regs = vptr->mac_regs;
2915 u16 i;
2916 u8 __iomem *ptr = (u8 __iomem *)regs;
2917
2918 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
2919 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2920
2921 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
2922 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2923
2924 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
2925 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2926
2927}
2928
2929static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
2930{
2931 struct net_device *dev = pci_get_drvdata(pdev);
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04002932 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002933 unsigned long flags;
Francois Romieu580a6902008-07-11 00:03:44 +02002934
Dave Jones2cf71d22009-07-23 18:11:12 -07002935 if (!netif_running(vptr->dev))
2936 return 0;
Francois Romieu580a6902008-07-11 00:03:44 +02002937
Dave Jones2cf71d22009-07-23 18:11:12 -07002938 netif_device_detach(vptr->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002939
2940 spin_lock_irqsave(&vptr->lock, flags);
Dave Jones2cf71d22009-07-23 18:11:12 -07002941 pci_save_state(pdev);
2942#ifdef ETHTOOL_GWOL
2943 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
2944 velocity_get_ip(vptr);
2945 velocity_save_context(vptr, &vptr->context);
2946 velocity_shutdown(vptr);
2947 velocity_set_wol(vptr);
2948 pci_enable_wake(pdev, PCI_D3hot, 1);
2949 pci_set_power_state(pdev, PCI_D3hot);
2950 } else {
2951 velocity_save_context(vptr, &vptr->context);
2952 velocity_shutdown(vptr);
2953 pci_disable_device(pdev);
2954 pci_set_power_state(pdev, pci_choose_state(pdev, state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002955 }
Dave Jones2cf71d22009-07-23 18:11:12 -07002956#else
2957 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2958#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002959 spin_unlock_irqrestore(&vptr->lock, flags);
Dave Jones2cf71d22009-07-23 18:11:12 -07002960 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002961}
2962
2963/**
Dave Jones2cf71d22009-07-23 18:11:12 -07002964 * velocity_restore_context - restore registers
2965 * @vptr: velocity
2966 * @context: buffer for stored context
Linus Torvalds1da177e2005-04-16 15:20:36 -07002967 *
Dave Jones2cf71d22009-07-23 18:11:12 -07002968 * Reload the register configuration from the velocity context
2969 * created by velocity_save_context.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002970 */
Dave Jones2cf71d22009-07-23 18:11:12 -07002971static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002972{
Dave Jones2cf71d22009-07-23 18:11:12 -07002973 struct mac_regs __iomem *regs = vptr->mac_regs;
2974 int i;
2975 u8 __iomem *ptr = (u8 __iomem *)regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002976
Dave Jones2cf71d22009-07-23 18:11:12 -07002977 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4)
2978 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002979
Dave Jones2cf71d22009-07-23 18:11:12 -07002980 /* Just skip cr0 */
2981 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
2982 /* Clear */
2983 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
2984 /* Set */
2985 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002986 }
2987
Dave Jones2cf71d22009-07-23 18:11:12 -07002988 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4)
2989 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
2990
2991 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
2992 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
2993
2994 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++)
2995 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
2996}
2997
2998static int velocity_resume(struct pci_dev *pdev)
2999{
3000 struct net_device *dev = pci_get_drvdata(pdev);
3001 struct velocity_info *vptr = netdev_priv(dev);
3002 unsigned long flags;
3003 int i;
3004
3005 if (!netif_running(vptr->dev))
3006 return 0;
3007
3008 pci_set_power_state(pdev, PCI_D0);
3009 pci_enable_wake(pdev, 0, 0);
3010 pci_restore_state(pdev);
3011
3012 mac_wol_reset(vptr->mac_regs);
3013
3014 spin_lock_irqsave(&vptr->lock, flags);
3015 velocity_restore_context(vptr, &vptr->context);
3016 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003017 mac_disable_int(vptr->mac_regs);
3018
Dave Jones2cf71d22009-07-23 18:11:12 -07003019 velocity_tx_srv(vptr, 0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003020
Dave Jones2cf71d22009-07-23 18:11:12 -07003021 for (i = 0; i < vptr->tx.numq; i++) {
3022 if (vptr->tx.used[i])
3023 mac_tx_queue_wake(vptr->mac_regs, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003024 }
Dave Jones2cf71d22009-07-23 18:11:12 -07003025
Linus Torvalds1da177e2005-04-16 15:20:36 -07003026 mac_enable_int(vptr->mac_regs);
Dave Jones2cf71d22009-07-23 18:11:12 -07003027 spin_unlock_irqrestore(&vptr->lock, flags);
3028 netif_device_attach(vptr->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003029
Dave Jones2cf71d22009-07-23 18:11:12 -07003030 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003031}
Dave Jones2cf71d22009-07-23 18:11:12 -07003032#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07003033
3034/*
3035 * Definition for our device driver. The PCI layer interface
3036 * uses this to handle all our card discover and plugging
3037 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07003038static struct pci_driver velocity_driver = {
3039 .name = VELOCITY_NAME,
3040 .id_table = velocity_id_table,
3041 .probe = velocity_found1,
3042 .remove = __devexit_p(velocity_remove1),
3043#ifdef CONFIG_PM
3044 .suspend = velocity_suspend,
3045 .resume = velocity_resume,
3046#endif
3047};
3048
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049
3050/**
3051 * velocity_ethtool_up - pre hook for ethtool
3052 * @dev: network device
3053 *
3054 * Called before an ethtool operation. We need to make sure the
3055 * chip is out of D3 state before we poke at it.
3056 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07003057static int velocity_ethtool_up(struct net_device *dev)
3058{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003059 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003060 if (!netif_running(dev))
3061 pci_set_power_state(vptr->pdev, PCI_D0);
3062 return 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003063}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003064
3065/**
3066 * velocity_ethtool_down - post hook for ethtool
3067 * @dev: network device
3068 *
3069 * Called after an ethtool operation. Restore the chip back to D3
3070 * state if it isn't running.
3071 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07003072static void velocity_ethtool_down(struct net_device *dev)
3073{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003074 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075 if (!netif_running(dev))
3076 pci_set_power_state(vptr->pdev, PCI_D3hot);
3077}
3078
3079static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3080{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003081 struct velocity_info *vptr = netdev_priv(dev);
Dave Jonesc4067402009-07-20 17:35:21 +00003082 struct mac_regs __iomem *regs = vptr->mac_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003083 u32 status;
3084 status = check_connection_type(vptr->mac_regs);
3085
Jay Cliburn59b693f2006-07-20 23:23:57 +02003086 cmd->supported = SUPPORTED_TP |
3087 SUPPORTED_Autoneg |
3088 SUPPORTED_10baseT_Half |
3089 SUPPORTED_10baseT_Full |
3090 SUPPORTED_100baseT_Half |
3091 SUPPORTED_100baseT_Full |
3092 SUPPORTED_1000baseT_Half |
3093 SUPPORTED_1000baseT_Full;
3094 if (status & VELOCITY_SPEED_1000)
3095 cmd->speed = SPEED_1000;
3096 else if (status & VELOCITY_SPEED_100)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003097 cmd->speed = SPEED_100;
3098 else
3099 cmd->speed = SPEED_10;
3100 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3101 cmd->port = PORT_TP;
3102 cmd->transceiver = XCVR_INTERNAL;
3103 cmd->phy_address = readb(&regs->MIIADR) & 0x1F;
3104
3105 if (status & VELOCITY_DUPLEX_FULL)
3106 cmd->duplex = DUPLEX_FULL;
3107 else
3108 cmd->duplex = DUPLEX_HALF;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003109
Linus Torvalds1da177e2005-04-16 15:20:36 -07003110 return 0;
3111}
3112
3113static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3114{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003115 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003116 u32 curr_status;
3117 u32 new_status = 0;
3118 int ret = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003119
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120 curr_status = check_connection_type(vptr->mac_regs);
3121 curr_status &= (~VELOCITY_LINK_FAIL);
3122
3123 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3124 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3125 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3126 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3127
3128 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3129 ret = -EINVAL;
3130 else
3131 velocity_set_media_mode(vptr, new_status);
3132
3133 return ret;
3134}
3135
Linus Torvalds1da177e2005-04-16 15:20:36 -07003136static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3137{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003138 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003139 strcpy(info->driver, VELOCITY_NAME);
3140 strcpy(info->version, VELOCITY_VERSION);
3141 strcpy(info->bus_info, pci_name(vptr->pdev));
3142}
3143
3144static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3145{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003146 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003147 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3148 wol->wolopts |= WAKE_MAGIC;
3149 /*
3150 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3151 wol.wolopts|=WAKE_PHY;
3152 */
3153 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3154 wol->wolopts |= WAKE_UCAST;
3155 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3156 wol->wolopts |= WAKE_ARP;
3157 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3158}
3159
3160static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3161{
Jeff Garzik8ab6f3f2006-06-27 08:56:23 -04003162 struct velocity_info *vptr = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003163
3164 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3165 return -EFAULT;
3166 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3167
3168 /*
3169 if (wol.wolopts & WAKE_PHY) {
3170 vptr->wol_opts|=VELOCITY_WOL_PHY;
3171 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3172 }
3173 */
3174
3175 if (wol->wolopts & WAKE_MAGIC) {
3176 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3177 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3178 }
3179 if (wol->wolopts & WAKE_UCAST) {
3180 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3181 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3182 }
3183 if (wol->wolopts & WAKE_ARP) {
3184 vptr->wol_opts |= VELOCITY_WOL_ARP;
3185 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3186 }
3187 memcpy(vptr->wol_passwd, wol->sopass, 6);
3188 return 0;
3189}
3190
3191static u32 velocity_get_msglevel(struct net_device *dev)
3192{
3193 return msglevel;
3194}
3195
3196static void velocity_set_msglevel(struct net_device *dev, u32 value)
3197{
3198 msglevel = value;
3199}
3200
Jeff Garzik7282d492006-09-13 14:30:00 -04003201static const struct ethtool_ops velocity_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003202 .get_settings = velocity_get_settings,
3203 .set_settings = velocity_set_settings,
3204 .get_drvinfo = velocity_get_drvinfo,
3205 .get_wol = velocity_ethtool_get_wol,
3206 .set_wol = velocity_ethtool_set_wol,
3207 .get_msglevel = velocity_get_msglevel,
3208 .set_msglevel = velocity_set_msglevel,
3209 .get_link = velocity_get_link,
3210 .begin = velocity_ethtool_up,
3211 .complete = velocity_ethtool_down
3212};
3213
Linus Torvalds1da177e2005-04-16 15:20:36 -07003214#ifdef CONFIG_PM
Randy Dunlapce9f7fe2006-12-18 21:21:10 -08003215#ifdef CONFIG_INET
Linus Torvalds1da177e2005-04-16 15:20:36 -07003216static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3217{
3218 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
Denis V. Luneva3374992008-02-28 20:44:27 -08003219 struct net_device *dev = ifa->ifa_dev->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003220
Ben Hutchings516b4df2009-10-28 04:01:46 -07003221 if (dev_net(dev) == &init_net &&
3222 dev->netdev_ops == &velocity_netdev_ops)
3223 velocity_get_ip(netdev_priv(dev));
Denis V. Luneva3374992008-02-28 20:44:27 -08003224
Linus Torvalds1da177e2005-04-16 15:20:36 -07003225 return NOTIFY_DONE;
3226}
Dave Jones2cf71d22009-07-23 18:11:12 -07003227#endif /* CONFIG_INET */
3228#endif /* CONFIG_PM */
Randy Dunlapce9f7fe2006-12-18 21:21:10 -08003229
Dave Jones2cf71d22009-07-23 18:11:12 -07003230#if defined(CONFIG_PM) && defined(CONFIG_INET)
3231static struct notifier_block velocity_inetaddr_notifier = {
3232 .notifier_call = velocity_netdev_event,
3233};
3234
3235static void velocity_register_notifier(void)
3236{
3237 register_inetaddr_notifier(&velocity_inetaddr_notifier);
3238}
3239
3240static void velocity_unregister_notifier(void)
3241{
3242 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
3243}
3244
3245#else
3246
3247#define velocity_register_notifier() do {} while (0)
3248#define velocity_unregister_notifier() do {} while (0)
3249
3250#endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */
3251
3252/**
3253 * velocity_init_module - load time function
3254 *
3255 * Called when the velocity module is loaded. The PCI driver
3256 * is registered with the PCI layer, and in turn will call
3257 * the probe functions for each velocity adapter installed
3258 * in the system.
3259 */
3260static int __init velocity_init_module(void)
3261{
3262 int ret;
3263
3264 velocity_register_notifier();
3265 ret = pci_register_driver(&velocity_driver);
3266 if (ret < 0)
3267 velocity_unregister_notifier();
3268 return ret;
3269}
3270
3271/**
3272 * velocity_cleanup - module unload
3273 *
3274 * When the velocity hardware is unloaded this function is called.
3275 * It will clean up the notifiers and the unregister the PCI
3276 * driver interface for this hardware. This in turn cleans up
3277 * all discovered interfaces before returning from the function
3278 */
3279static void __exit velocity_cleanup_module(void)
3280{
3281 velocity_unregister_notifier();
3282 pci_unregister_driver(&velocity_driver);
3283}
3284
3285module_init(velocity_init_module);
3286module_exit(velocity_cleanup_module);