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1da177e4
LT		 1/* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */
2/*
3 Written 1996-1999 by Donald Becker.
4
5 This software may be used and distributed according to the terms
6 of the GNU General Public License, incorporated herein by reference.
7
8 This driver is for the 3Com "Vortex" and "Boomerang" series ethercards.
9 Members of the series include Fast EtherLink 3c590/3c592/3c595/3c597
10 and the EtherLink XL 3c900 and 3c905 cards.
11
12 Problem reports and questions should be directed to
13 vortex@scyld.com
14
15 The author may be reached as becker@scyld.com, or C/O
16 Scyld Computing Corporation
17 410 Severn Ave., Suite 210
18 Annapolis MD 21403
19
1da177e4
LT		 20*/
21
22/*
23 * FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation
24 * as well as other drivers
25 *
26 * NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k
27 * due to dead code elimination. There will be some performance benefits from this due to
28 * elimination of all the tests and reduced cache footprint.
29 */
30
31
32#define DRV_NAME "3c59x"
1da177e4
LT		 33
34
35
36/* A few values that may be tweaked. */
37/* Keep the ring sizes a power of two for efficiency. */
38#define TX_RING_SIZE 16
39#define RX_RING_SIZE 32
40#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
41
42/* "Knobs" that adjust features and parameters. */
43/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
44 Setting to > 1512 effectively disables this feature. */
45#ifndef __arm__
46static int rx_copybreak = 200;
47#else
48/* ARM systems perform better by disregarding the bus-master
49 transfer capability of these cards. -- rmk */
50static int rx_copybreak = 1513;
51#endif
52/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
53static const int mtu = 1500;
54/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
55static int max_interrupt_work = 32;
56/* Tx timeout interval (millisecs) */
57static int watchdog = 5000;
58
59/* Allow aggregation of Tx interrupts. Saves CPU load at the cost
60 * of possible Tx stalls if the system is blocking interrupts
61 * somewhere else. Undefine this to disable.
62 */
63#define tx_interrupt_mitigation 1
64
65/* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */
66#define vortex_debug debug
67#ifdef VORTEX_DEBUG
68static int vortex_debug = VORTEX_DEBUG;
69#else
70static int vortex_debug = 1;
71#endif
72
1da177e4
LT		 73#include <linux/module.h>
74#include <linux/kernel.h>
75#include <linux/string.h>
76#include <linux/timer.h>
77#include <linux/errno.h>
78#include <linux/in.h>
79#include <linux/ioport.h>
80#include <linux/slab.h>
81#include <linux/interrupt.h>
82#include <linux/pci.h>
83#include <linux/mii.h>
84#include <linux/init.h>
85#include <linux/netdevice.h>
86#include <linux/etherdevice.h>
87#include <linux/skbuff.h>
88#include <linux/ethtool.h>
89#include <linux/highmem.h>
90#include <linux/eisa.h>
91#include <linux/bitops.h>
ff5688ae 92#include <linux/jiffies.h>
60e4ad7a 93#include <asm/irq.h> /* For nr_irqs only. */
1da177e4
LT		 94#include <asm/io.h>
95#include <asm/uaccess.h>
96
97/* Kernel compatibility defines, some common to David Hinds' PCMCIA package.
98 This is only in the support-all-kernels source code. */
99
100#define RUN_AT(x) (jiffies + (x))
101
102#include <linux/delay.h>
103
104
105static char version[] __devinitdata =
2c2a8c53 106DRV_NAME ": Donald Becker and others.\n";
1da177e4
LT		 107
108MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
61238602 109MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver ");
1da177e4 110MODULE_LICENSE("GPL");
1da177e4
LT		 111
112
113/* Operational parameter that usually are not changed. */
114
115/* The Vortex size is twice that of the original EtherLinkIII series: the
116 runtime register window, window 1, is now always mapped in.
117 The Boomerang size is twice as large as the Vortex -- it has additional
118 bus master control registers. */
119#define VORTEX_TOTAL_SIZE 0x20
120#define BOOMERANG_TOTAL_SIZE 0x40
121
122/* Set iff a MII transceiver on any interface requires mdio preamble.
123 This only set with the original DP83840 on older 3c905 boards, so the extra
124 code size of a per-interface flag is not worthwhile. */
125static char mii_preamble_required;
126
127#define PFX DRV_NAME ": "
128
129
130
131/*
132 Theory of Operation
133
134I. Board Compatibility
135
136This device driver is designed for the 3Com FastEtherLink and FastEtherLink
137XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs
138versions of the FastEtherLink cards. The supported product IDs are
139 3c590, 3c592, 3c595, 3c597, 3c900, 3c905
140
141The related ISA 3c515 is supported with a separate driver, 3c515.c, included
142with the kernel source or available from
143 cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html
144
145II. Board-specific settings
146
147PCI bus devices are configured by the system at boot time, so no jumpers
148need to be set on the board. The system BIOS should be set to assign the
149PCI INTA signal to an otherwise unused system IRQ line.
150
151The EEPROM settings for media type and forced-full-duplex are observed.
152The EEPROM media type should be left at the default "autoselect" unless using
15310base2 or AUI connections which cannot be reliably detected.
154
155III. Driver operation
156
157The 3c59x series use an interface that's very similar to the previous 3c5x9
158series. The primary interface is two programmed-I/O FIFOs, with an
159alternate single-contiguous-region bus-master transfer (see next).
160
161The 3c900 "Boomerang" series uses a full-bus-master interface with separate
162lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet,
163DEC Tulip and Intel Speedo3. The first chip version retains a compatible
164programmed-I/O interface that has been removed in 'B' and subsequent board
165revisions.
166
167One extension that is advertised in a very large font is that the adapters
168are capable of being bus masters. On the Vortex chip this capability was
169only for a single contiguous region making it far less useful than the full
170bus master capability. There is a significant performance impact of taking
171an extra interrupt or polling for the completion of each transfer, as well
172as difficulty sharing the single transfer engine between the transmit and
173receive threads. Using DMA transfers is a win only with large blocks or
174with the flawed versions of the Intel Orion motherboard PCI controller.
175
176The Boomerang chip's full-bus-master interface is useful, and has the
177currently-unused advantages over other similar chips that queued transmit
178packets may be reordered and receive buffer groups are associated with a
179single frame.
180
181With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme.
182Rather than a fixed intermediate receive buffer, this scheme allocates
183full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as
184the copying breakpoint: it is chosen to trade-off the memory wasted by
185passing the full-sized skbuff to the queue layer for all frames vs. the
186copying cost of copying a frame to a correctly-sized skbuff.
187
188IIIC. Synchronization
189The driver runs as two independent, single-threaded flows of control. One
190is the send-packet routine, which enforces single-threaded use by the
191dev->tbusy flag. The other thread is the interrupt handler, which is single
192threaded by the hardware and other software.
193
194IV. Notes
195
196Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development
1973c590, 3c595, and 3c900 boards.
198The name "Vortex" is the internal 3Com project name for the PCI ASIC, and
199the EISA version is called "Demon". According to Terry these names come
200from rides at the local amusement park.
201
202The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes!
203This driver only supports ethernet packets because of the skbuff allocation
204limit of 4K.
205*/
206
207/* This table drives the PCI probe routines. It's mostly boilerplate in all
208 of the drivers, and will likely be provided by some future kernel.
209*/
210enum pci_flags_bit {
1f1bd5fc 211 PCI_USES_MASTER=4,
1da177e4
LT		 212};
213
214enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8,
215 EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */
216 HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100,
217 INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800,
218 EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000,
219 EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, };
220
221enum vortex_chips {
222 CH_3C590 = 0,
223 CH_3C592,
224 CH_3C597,
225 CH_3C595_1,
226 CH_3C595_2,
227
228 CH_3C595_3,
229 CH_3C900_1,
230 CH_3C900_2,
231 CH_3C900_3,
232 CH_3C900_4,
233
234 CH_3C900_5,
235 CH_3C900B_FL,
236 CH_3C905_1,
237 CH_3C905_2,
238 CH_3C905B_1,
239
240 CH_3C905B_2,
241 CH_3C905B_FX,
242 CH_3C905C,
243 CH_3C9202,
244 CH_3C980,
245 CH_3C9805,
246
247 CH_3CSOHO100_TX,
248 CH_3C555,
249 CH_3C556,
250 CH_3C556B,
251 CH_3C575,
252
253 CH_3C575_1,
254 CH_3CCFE575,
255 CH_3CCFE575CT,
256 CH_3CCFE656,
257 CH_3CCFEM656,
258
259 CH_3CCFEM656_1,
260 CH_3C450,
261 CH_3C920,
262 CH_3C982A,
263 CH_3C982B,
264
265 CH_905BT4,
266 CH_920B_EMB_WNM,
267};
268
269
270/* note: this array directly indexed by above enums, and MUST
271 * be kept in sync with both the enums above, and the PCI device
272 * table below
273 */
274static struct vortex_chip_info {
275 const char *name;
276 int flags;
277 int drv_flags;
278 int io_size;
279} vortex_info_tbl[] __devinitdata = {
280 {"3c590 Vortex 10Mbps",
1f1bd5fc 281 PCI_USES_MASTER, IS_VORTEX, 32, },
1da177e4 282 {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
1f1bd5fc 283 PCI_USES_MASTER, IS_VORTEX, 32, },
1da177e4 284 {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */
1f1bd5fc 285 PCI_USES_MASTER, IS_VORTEX, 32, },
1da177e4 286 {"3c595 Vortex 100baseTx",
1f1bd5fc 287 PCI_USES_MASTER, IS_VORTEX, 32, },
1da177e4 288 {"3c595 Vortex 100baseT4",
1f1bd5fc 289 PCI_USES_MASTER, IS_VORTEX, 32, },
1da177e4
LT		 290
291 {"3c595 Vortex 100base-MII",
1f1bd5fc 292 PCI_USES_MASTER, IS_VORTEX, 32, },
1da177e4 293 {"3c900 Boomerang 10baseT",
1f1bd5fc 294 PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
1da177e4 295 {"3c900 Boomerang 10Mbps Combo",
1f1bd5fc 296 PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, },
1da177e4 297 {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */
1f1bd5fc 298 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
1da177e4 299 {"3c900 Cyclone 10Mbps Combo",
1f1bd5fc 300 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
1da177e4
LT		 301
302 {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */
1f1bd5fc 303 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
1da177e4 304 {"3c900B-FL Cyclone 10base-FL",
1f1bd5fc 305 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
1da177e4 306 {"3c905 Boomerang 100baseTx",
1f1bd5fc 307 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
1da177e4 308 {"3c905 Boomerang 100baseT4",
1f1bd5fc 309 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, },
1da177e4 310 {"3c905B Cyclone 100baseTx",
1f1bd5fc 311 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
1da177e4
LT		 312
313 {"3c905B Cyclone 10/100/BNC",
1f1bd5fc 314 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
1da177e4 315 {"3c905B-FX Cyclone 100baseFx",
1f1bd5fc 316 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, },
1da177e4 317 {"3c905C Tornado",
1f1bd5fc 318 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
1da177e4 319 {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)",
1f1bd5fc 320 PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, },
1da177e4 321 {"3c980 Cyclone",
aa807f79 322 PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
1da177e4
LT		 323
324 {"3c980C Python-T",
1f1bd5fc 325 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, },
1da177e4 326 {"3cSOHO100-TX Hurricane",
b8a1fcee 327 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
1da177e4 328 {"3c555 Laptop Hurricane",
1f1bd5fc 329 PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, },
1da177e4 330 {"3c556 Laptop Tornado",
1f1bd5fc 331 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR|
1da177e4
LT		 332 HAS_HWCKSM, 128, },
333 {"3c556B Laptop Hurricane",
1f1bd5fc 334 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR|
1da177e4
LT		 335 WNO_XCVR_PWR|HAS_HWCKSM, 128, },
336
337 {"3c575 [Megahertz] 10/100 LAN CardBus",
1f1bd5fc 338 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
1da177e4 339 {"3c575 Boomerang CardBus",
1f1bd5fc 340 PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, },
1da177e4 341 {"3CCFE575BT Cyclone CardBus",
1f1bd5fc 342 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|
1da177e4
LT		 343 INVERT_LED_PWR|HAS_HWCKSM, 128, },
344 {"3CCFE575CT Tornado CardBus",
1f1bd5fc 345 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
1da177e4
LT		 346 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
347 {"3CCFE656 Cyclone CardBus",
1f1bd5fc 348 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
1da177e4
LT		 349 INVERT_LED_PWR|HAS_HWCKSM, 128, },
350
351 {"3CCFEM656B Cyclone+Winmodem CardBus",
1f1bd5fc 352 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
1da177e4
LT		 353 INVERT_LED_PWR|HAS_HWCKSM, 128, },
354 {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */
1f1bd5fc 355 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR|
1da177e4
LT		 356 MAX_COLLISION_RESET|HAS_HWCKSM, 128, },
357 {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */
1f1bd5fc 358 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
1da177e4 359 {"3c920 Tornado",
1f1bd5fc 360 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
1da177e4 361 {"3c982 Hydra Dual Port A",
1f1bd5fc 362 PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
1da177e4
LT		 363
364 {"3c982 Hydra Dual Port B",
1f1bd5fc 365 PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, },
1da177e4 366 {"3c905B-T4",
1f1bd5fc 367 PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, },
1da177e4 368 {"3c920B-EMB-WNM Tornado",
1f1bd5fc 369 PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, },
1da177e4
LT		 370
371 {NULL,}, /* NULL terminated list. */
372};
373
374
375static struct pci_device_id vortex_pci_tbl[] = {
376 { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 },
377 { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 },
378 { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 },
379 { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 },
380 { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 },
381
382 { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 },
383 { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 },
384 { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 },
385 { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 },
386 { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 },
387
388 { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 },
389 { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL },
390 { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 },
391 { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 },
392 { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 },
393
394 { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 },
395 { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX },
396 { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C },
397 { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 },
398 { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 },
399 { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 },
400
401 { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX },
402 { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 },
403 { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 },
404 { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B },
405 { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 },
406
407 { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 },
408 { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 },
409 { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT },
410 { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 },
411 { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 },
412
413 { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 },
414 { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 },
415 { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 },
416 { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A },
417 { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B },
418
419 { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 },
420 { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM },
421
422 {0,} /* 0 terminated list. */
423};
424MODULE_DEVICE_TABLE(pci, vortex_pci_tbl);
425
426
427/* Operational definitions.
428 These are not used by other compilation units and thus are not
429 exported in a ".h" file.
430
431 First the windows. There are eight register windows, with the command
432 and status registers available in each.
433 */
62afe595 434#define EL3WINDOW(win_num) iowrite16(SelectWindow + (win_num), ioaddr + EL3_CMD)
1da177e4
LT		 435#define EL3_CMD 0x0e
436#define EL3_STATUS 0x0e
437
438/* The top five bits written to EL3_CMD are a command, the lower
439 11 bits are the parameter, if applicable.
440 Note that 11 parameters bits was fine for ethernet, but the new chip
441 can handle FDDI length frames (~4500 octets) and now parameters count
442 32-bit 'Dwords' rather than octets. */
443
444enum vortex_cmd {
445 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
446 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11,
447 UpStall = 6<<11, UpUnstall = (6<<11)+1,
448 DownStall = (6<<11)+2, DownUnstall = (6<<11)+3,
449 RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
450 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
451 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
452 SetTxThreshold = 18<<11, SetTxStart = 19<<11,
453 StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11,
454 StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,};
455
456/* The SetRxFilter command accepts the following classes: */
457enum RxFilter {
458 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
459
460/* Bits in the general status register. */
461enum vortex_status {
462 IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004,
463 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
464 IntReq = 0x0040, StatsFull = 0x0080,
465 DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10,
466 DMAInProgress = 1<<11, /* DMA controller is still busy.*/
467 CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/
468};
469
470/* Register window 1 offsets, the window used in normal operation.
471 On the Vortex this window is always mapped at offsets 0x10-0x1f. */
472enum Window1 {
473 TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
474 RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B,
475 TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
476};
477enum Window0 {
478 Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
479 Wn0EepromData = 12, /* Window 0: EEPROM results register. */
480 IntrStatus=0x0E, /* Valid in all windows. */
481};
482enum Win0_EEPROM_bits {
483 EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
484 EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
485 EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
486};
487/* EEPROM locations. */
488enum eeprom_offset {
489 PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3,
490 EtherLink3ID=7, IFXcvrIO=8, IRQLine=9,
491 NodeAddr01=10, NodeAddr23=11, NodeAddr45=12,
492 DriverTune=13, Checksum=15};
493
494enum Window2 { /* Window 2. */
495 Wn2_ResetOptions=12,
496};
497enum Window3 { /* Window 3: MAC/config bits. */
498 Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8,
499};
500
501#define BFEXT(value, offset, bitcount) \
502 ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1))
503
504#define BFINS(lhs, rhs, offset, bitcount) \
505 (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \
506 (((rhs) & ((1 << (bitcount)) - 1)) << (offset)))
507
508#define RAM_SIZE(v) BFEXT(v, 0, 3)
509#define RAM_WIDTH(v) BFEXT(v, 3, 1)
510#define RAM_SPEED(v) BFEXT(v, 4, 2)
511#define ROM_SIZE(v) BFEXT(v, 6, 2)
512#define RAM_SPLIT(v) BFEXT(v, 16, 2)
513#define XCVR(v) BFEXT(v, 20, 4)
514#define AUTOSELECT(v) BFEXT(v, 24, 1)
515
516enum Window4 { /* Window 4: Xcvr/media bits. */
517 Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10,
518};
519enum Win4_Media_bits {
520 Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
521 Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
522 Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
523 Media_LnkBeat = 0x0800,
524};
525enum Window7 { /* Window 7: Bus Master control. */
526 Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6,
527 Wn7_MasterStatus = 12,
528};
529/* Boomerang bus master control registers. */
530enum MasterCtrl {
531 PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c,
532 TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38,
533};
534
535/* The Rx and Tx descriptor lists.
536 Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
537 alignment contraint on tx_ring[] and rx_ring[]. */
538#define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */
539#define DN_COMPLETE 0x00010000 /* This packet has been downloaded */
540struct boom_rx_desc {
cc2d6596
AV		 541 __le32 next; /* Last entry points to 0. */
542 __le32 status;
543 __le32 addr; /* Up to 63 addr/len pairs possible. */
544 __le32 length; /* Set LAST_FRAG to indicate last pair. */
1da177e4
LT		 545};
546/* Values for the Rx status entry. */
547enum rx_desc_status {
548 RxDComplete=0x00008000, RxDError=0x4000,
549 /* See boomerang_rx() for actual error bits */
550 IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27,
551 IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31,
552};
553
554#ifdef MAX_SKB_FRAGS
555#define DO_ZEROCOPY 1
556#else
557#define DO_ZEROCOPY 0
558#endif
559
560struct boom_tx_desc {
cc2d6596
AV		 561 __le32 next; /* Last entry points to 0. */
562 __le32 status; /* bits 0:12 length, others see below. */
1da177e4
LT		 563#if DO_ZEROCOPY
564 struct {
cc2d6596
AV		 565 __le32 addr;
566 __le32 length;
1da177e4
LT		 567 } frag[1+MAX_SKB_FRAGS];
568#else
cc2d6596
AV		 569 __le32 addr;
570 __le32 length;
1da177e4
LT		 571#endif
572};
573
574/* Values for the Tx status entry. */
575enum tx_desc_status {
576 CRCDisable=0x2000, TxDComplete=0x8000,
577 AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000,
578 TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */
579};
580
581/* Chip features we care about in vp->capabilities, read from the EEPROM. */
582enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 };
583
584struct vortex_extra_stats {
8d1d0340
SK		 585 unsigned long tx_deferred;
586 unsigned long tx_max_collisions;
587 unsigned long tx_multiple_collisions;
588 unsigned long tx_single_collisions;
589 unsigned long rx_bad_ssd;
1da177e4
LT		 590};
591
592struct vortex_private {
593 /* The Rx and Tx rings should be quad-word-aligned. */
594 struct boom_rx_desc* rx_ring;
595 struct boom_tx_desc* tx_ring;
596 dma_addr_t rx_ring_dma;
597 dma_addr_t tx_ring_dma;
598 /* The addresses of transmit- and receive-in-place skbuffs. */
599 struct sk_buff* rx_skbuff[RX_RING_SIZE];
600 struct sk_buff* tx_skbuff[TX_RING_SIZE];
601 unsigned int cur_rx, cur_tx; /* The next free ring entry */
602 unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
1da177e4
LT		 603 struct vortex_extra_stats xstats; /* NIC-specific extra stats */
604 struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
605 dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */
606
607 /* PCI configuration space information. */
608 struct device *gendev;
62afe595
JL		 609 void __iomem *ioaddr; /* IO address space */
610 void __iomem *cb_fn_base; /* CardBus function status addr space. */
1da177e4
LT		 611
612 /* Some values here only for performance evaluation and path-coverage */
613 int rx_nocopy, rx_copy, queued_packet, rx_csumhits;
614 int card_idx;
615
616 /* The remainder are related to chip state, mostly media selection. */
617 struct timer_list timer; /* Media selection timer. */
618 struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */
619 int options; /* User-settable misc. driver options. */
620 unsigned int media_override:4, /* Passed-in media type. */
621 default_media:4, /* Read from the EEPROM/Wn3_Config. */
09ce3512 622 full_duplex:1, autoselect:1,
1da177e4
LT		 623 bus_master:1, /* Vortex can only do a fragment bus-m. */
624 full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */
625 flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */
626 partner_flow_ctrl:1, /* Partner supports flow control */
627 has_nway:1,
628 enable_wol:1, /* Wake-on-LAN is enabled */
629 pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */
630 open:1,
631 medialock:1,
632 must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */
633 large_frames:1; /* accept large frames */
634 int drv_flags;
635 u16 status_enable;
636 u16 intr_enable;
637 u16 available_media; /* From Wn3_Options. */
638 u16 capabilities, info1, info2; /* Various, from EEPROM. */
639 u16 advertising; /* NWay media advertisement */
640 unsigned char phys[2]; /* MII device addresses. */
641 u16 deferred; /* Resend these interrupts when we
642 * bale from the ISR */
643 u16 io_size; /* Size of PCI region (for release_region) */
644 spinlock_t lock; /* Serialise access to device & its vortex_private */
645 struct mii_if_info mii; /* MII lib hooks/info */
646};
647
648#ifdef CONFIG_PCI
649#define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL)
650#else
651#define DEVICE_PCI(dev) NULL
652#endif
653
654#define VORTEX_PCI(vp) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL)
655
656#ifdef CONFIG_EISA
657#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
658#else
659#define DEVICE_EISA(dev) NULL
660#endif
661
662#define VORTEX_EISA(vp) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL)
663
664/* The action to take with a media selection timer tick.
665 Note that we deviate from the 3Com order by checking 10base2 before AUI.
666 */
667enum xcvr_types {
668 XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
669 XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10,
670};
671
f71e1309 672static const struct media_table {
1da177e4
LT		 673 char *name;
674 unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
675 mask:8, /* The transceiver-present bit in Wn3_Config.*/
676 next:8; /* The media type to try next. */
677 int wait; /* Time before we check media status. */
678} media_tbl[] = {
679 { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10},
680 { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10},
681 { "undefined", 0, 0x80, XCVR_10baseT, 10000},
682 { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10},
683 { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10},
684 { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10},
685 { "MII", 0, 0x41, XCVR_10baseT, 3*HZ },
686 { "undefined", 0, 0x01, XCVR_10baseT, 10000},
687 { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ},
688 { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ },
689 { "Default", 0, 0xFF, XCVR_10baseT, 10000},
690};
691
692static struct {
693 const char str[ETH_GSTRING_LEN];
694} ethtool_stats_keys[] = {
695 { "tx_deferred" },
8d1d0340 696 { "tx_max_collisions" },
1da177e4 697 { "tx_multiple_collisions" },
8d1d0340 698 { "tx_single_collisions" },
1da177e4
LT		 699 { "rx_bad_ssd" },
700};
701
702/* number of ETHTOOL_GSTATS u64's */
8d1d0340 703#define VORTEX_NUM_STATS 5
1da177e4 704
62afe595 705static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
1da177e4 706 int chip_idx, int card_idx);
c8303d10 707static int vortex_up(struct net_device *dev);
1da177e4
LT		 708static void vortex_down(struct net_device *dev, int final);
709static int vortex_open(struct net_device *dev);
62afe595 710static void mdio_sync(void __iomem *ioaddr, int bits);
1da177e4
LT		 711static int mdio_read(struct net_device *dev, int phy_id, int location);
712static void mdio_write(struct net_device *vp, int phy_id, int location, int value);
713static void vortex_timer(unsigned long arg);
714static void rx_oom_timer(unsigned long arg);
715static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev);
716static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev);
717static int vortex_rx(struct net_device *dev);
718static int boomerang_rx(struct net_device *dev);
7d12e780
DH		 719static irqreturn_t vortex_interrupt(int irq, void *dev_id);
720static irqreturn_t boomerang_interrupt(int irq, void *dev_id);
1da177e4
LT		 721static int vortex_close(struct net_device *dev);
722static void dump_tx_ring(struct net_device *dev);
62afe595 723static void update_stats(void __iomem *ioaddr, struct net_device *dev);
1da177e4
LT		 724static struct net_device_stats *vortex_get_stats(struct net_device *dev);
725static void set_rx_mode(struct net_device *dev);
726#ifdef CONFIG_PCI
727static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
728#endif
729static void vortex_tx_timeout(struct net_device *dev);
730static void acpi_set_WOL(struct net_device *dev);
7282d491 731static const struct ethtool_ops vortex_ethtool_ops;
1da177e4
LT		 732static void set_8021q_mode(struct net_device *dev, int enable);
733
1da177e4
LT		 734/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
735/* Option count limit only -- unlimited interfaces are supported. */
736#define MAX_UNITS 8
9954ab7f
JL		 737static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 };
738static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
739static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
740static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
741static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
900fd17d 742static int use_mmio[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 };
1da177e4
LT		 743static int global_options = -1;
744static int global_full_duplex = -1;
745static int global_enable_wol = -1;
900fd17d 746static int global_use_mmio = -1;
1da177e4 747
1da177e4
LT		 748/* Variables to work-around the Compaq PCI BIOS32 problem. */
749static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900;
750static struct net_device *compaq_net_device;
751
752static int vortex_cards_found;
753
754module_param(debug, int, 0);
755module_param(global_options, int, 0);
756module_param_array(options, int, NULL, 0);
757module_param(global_full_duplex, int, 0);
758module_param_array(full_duplex, int, NULL, 0);
759module_param_array(hw_checksums, int, NULL, 0);
760module_param_array(flow_ctrl, int, NULL, 0);
761module_param(global_enable_wol, int, 0);
762module_param_array(enable_wol, int, NULL, 0);
763module_param(rx_copybreak, int, 0);
764module_param(max_interrupt_work, int, 0);
765module_param(compaq_ioaddr, int, 0);
766module_param(compaq_irq, int, 0);
767module_param(compaq_device_id, int, 0);
768module_param(watchdog, int, 0);
900fd17d
JL		 769module_param(global_use_mmio, int, 0);
770module_param_array(use_mmio, int, NULL, 0);
1da177e4
LT		 771MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
772MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex");
773MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset");
774MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)");
46e5e4a8 775MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if full_duplex is unset");
1da177e4
LT		 776MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)");
777MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)");
778MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)");
46e5e4a8 779MODULE_PARM_DESC(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if enable_wol is unset");
1da177e4
LT		 780MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames");
781MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt");
782MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)");
783MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)");
784MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)");
785MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds");
900fd17d
JL		 786MODULE_PARM_DESC(global_use_mmio, "3c59x: same as use_mmio, but applies to all NICs if options is unset");
787MODULE_PARM_DESC(use_mmio, "3c59x: use memory-mapped PCI I/O resource (0-1)");
1da177e4
LT		 788
789#ifdef CONFIG_NET_POLL_CONTROLLER
790static void poll_vortex(struct net_device *dev)
791{
792 struct vortex_private *vp = netdev_priv(dev);
793 unsigned long flags;
0d38ff1d 794 local_irq_save(flags);
7d12e780 795 (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev);
1da177e4 796 local_irq_restore(flags);
6aa20a22 797}
1da177e4
LT		 798#endif
799
800#ifdef CONFIG_PM
801
a880c4cd 802static int vortex_suspend(struct pci_dev *pdev, pm_message_t state)
1da177e4
LT		 803{
804 struct net_device *dev = pci_get_drvdata(pdev);
805
806 if (dev && dev->priv) {
807 if (netif_running(dev)) {
808 netif_device_detach(dev);
809 vortex_down(dev, 1);
810 }
5b039e68
RW		 811 pci_save_state(pdev);
812 pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
813 free_irq(dev->irq, dev);
814 pci_disable_device(pdev);
815 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1da177e4
LT		 816 }
817 return 0;
818}
819
a880c4cd 820static int vortex_resume(struct pci_dev *pdev)
1da177e4
LT		 821{
822 struct net_device *dev = pci_get_drvdata(pdev);
5b039e68 823 struct vortex_private *vp = netdev_priv(dev);
e1265153 824 int err;
1da177e4 825
5b039e68
RW		 826 if (dev && vp) {
827 pci_set_power_state(pdev, PCI_D0);
828 pci_restore_state(pdev);
e1265153
DM		 829 err = pci_enable_device(pdev);
830 if (err) {
831 printk(KERN_WARNING "%s: Could not enable device \n",
832 dev->name);
833 return err;
834 }
5b039e68
RW		 835 pci_set_master(pdev);
836 if (request_irq(dev->irq, vp->full_bus_master_rx ?
1fb9df5d 837 &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev)) {
5b039e68
RW		 838 printk(KERN_WARNING "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
839 pci_disable_device(pdev);
840 return -EBUSY;
841 }
1da177e4 842 if (netif_running(dev)) {
c8303d10
MH		 843 err = vortex_up(dev);
844 if (err)
845 return err;
846 else
847 netif_device_attach(dev);
1da177e4
LT		 848 }
849 }
850 return 0;
851}
852
853#endif /* CONFIG_PM */
854
855#ifdef CONFIG_EISA
856static struct eisa_device_id vortex_eisa_ids[] = {
857 { "TCM5920", CH_3C592 },
858 { "TCM5970", CH_3C597 },
859 { "" }
860};
07563c71 861MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
1da177e4 862
95c408a9 863static int __init vortex_eisa_probe(struct device *device)
1da177e4 864{
62afe595 865 void __iomem *ioaddr;
1da177e4
LT		 866 struct eisa_device *edev;
867
a880c4cd 868 edev = to_eisa_device(device);
1da177e4 869
62afe595 870 if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME))
1da177e4
LT		 871 return -EBUSY;
872
62afe595
JL		 873 ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE);
874
875 if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12,
1da177e4 876 edev->id.driver_data, vortex_cards_found)) {
a880c4cd 877 release_region(edev->base_addr, VORTEX_TOTAL_SIZE);
1da177e4
LT		 878 return -ENODEV;
879 }
880
881 vortex_cards_found++;
882
883 return 0;
884}
885
95c408a9 886static int __devexit vortex_eisa_remove(struct device *device)
1da177e4
LT		 887{
888 struct eisa_device *edev;
889 struct net_device *dev;
890 struct vortex_private *vp;
62afe595 891 void __iomem *ioaddr;
1da177e4 892
a880c4cd
SK		 893 edev = to_eisa_device(device);
894 dev = eisa_get_drvdata(edev);
1da177e4
LT		 895
896 if (!dev) {
897 printk("vortex_eisa_remove called for Compaq device!\n");
898 BUG();
899 }
900
901 vp = netdev_priv(dev);
62afe595 902 ioaddr = vp->ioaddr;
6aa20a22 903
a880c4cd
SK		 904 unregister_netdev(dev);
905 iowrite16(TotalReset|0x14, ioaddr + EL3_CMD);
906 release_region(dev->base_addr, VORTEX_TOTAL_SIZE);
1da177e4 907
a880c4cd 908 free_netdev(dev);
1da177e4
LT		 909 return 0;
910}
95c408a9
RB		 911
912static struct eisa_driver vortex_eisa_driver = {
913 .id_table = vortex_eisa_ids,
914 .driver = {
915 .name = "3c59x",
916 .probe = vortex_eisa_probe,
917 .remove = __devexit_p(vortex_eisa_remove)
918 }
919};
920
921#endif /* CONFIG_EISA */
1da177e4
LT		 922
923/* returns count found (>= 0), or negative on error */
a880c4cd 924static int __init vortex_eisa_init(void)
1da177e4
LT		 925{
926 int eisa_found = 0;
927 int orig_cards_found = vortex_cards_found;
928
929#ifdef CONFIG_EISA
c2f6fabb
BH		 930 int err;
931
932 err = eisa_driver_register (&vortex_eisa_driver);
933 if (!err) {
934 /*
935 * Because of the way EISA bus is probed, we cannot assume
936 * any device have been found when we exit from
937 * eisa_driver_register (the bus root driver may not be
938 * initialized yet). So we blindly assume something was
939 * found, and let the sysfs magic happend...
940 */
941 eisa_found = 1;
1da177e4
LT		 942 }
943#endif
6aa20a22 944
1da177e4
LT		 945 /* Special code to work-around the Compaq PCI BIOS32 problem. */
946 if (compaq_ioaddr) {
62afe595
JL		 947 vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE),
948 compaq_irq, compaq_device_id, vortex_cards_found++);
1da177e4
LT		 949 }
950
951 return vortex_cards_found - orig_cards_found + eisa_found;
952}
953
954/* returns count (>= 0), or negative on error */
a880c4cd 955static int __devinit vortex_init_one(struct pci_dev *pdev,
1da177e4
LT		 956 const struct pci_device_id *ent)
957{
900fd17d
JL		 958 int rc, unit, pci_bar;
959 struct vortex_chip_info *vci;
960 void __iomem *ioaddr;
1da177e4 961
6aa20a22 962 /* wake up and enable device */
a880c4cd 963 rc = pci_enable_device(pdev);
1da177e4
LT		 964 if (rc < 0)
965 goto out;
966
900fd17d
JL		 967 unit = vortex_cards_found;
968
969 if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
970 /* Determine the default if the user didn't override us */
971 vci = &vortex_info_tbl[ent->driver_data];
972 pci_bar = vci->drv_flags & (IS_CYCLONE | IS_TORNADO) ? 1 : 0;
973 } else if (unit < MAX_UNITS && use_mmio[unit] >= 0)
974 pci_bar = use_mmio[unit] ? 1 : 0;
975 else
976 pci_bar = global_use_mmio ? 1 : 0;
977
978 ioaddr = pci_iomap(pdev, pci_bar, 0);
979 if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
980 ioaddr = pci_iomap(pdev, 0, 0);
981
982 rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
983 ent->driver_data, unit);
1da177e4 984 if (rc < 0) {
a880c4cd 985 pci_disable_device(pdev);
1da177e4
LT		 986 goto out;
987 }
988
989 vortex_cards_found++;
990
991out:
992 return rc;
993}
994
995/*
996 * Start up the PCI/EISA device which is described by *gendev.
997 * Return 0 on success.
998 *
999 * NOTE: pdev can be NULL, for the case of a Compaq device
1000 */
1001static int __devinit vortex_probe1(struct device *gendev,
62afe595 1002 void __iomem *ioaddr, int irq,
1da177e4
LT		 1003 int chip_idx, int card_idx)
1004{
1005 struct vortex_private *vp;
1006 int option;
1007 unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */
1008 int i, step;
1009 struct net_device *dev;
1010 static int printed_version;
1011 int retval, print_info;
1012 struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
361d5ee3 1013 const char *print_name = "3c59x";
1da177e4
LT		 1014 struct pci_dev *pdev = NULL;
1015 struct eisa_device *edev = NULL;
1016
1017 if (!printed_version) {
1018 printk (version);
1019 printed_version = 1;
1020 }
1021
1022 if (gendev) {
1023 if ((pdev = DEVICE_PCI(gendev))) {
1024 print_name = pci_name(pdev);
1025 }
1026
1027 if ((edev = DEVICE_EISA(gendev))) {
1028 print_name = edev->dev.bus_id;
1029 }
1030 }
1031
1032 dev = alloc_etherdev(sizeof(*vp));
1033 retval = -ENOMEM;
1034 if (!dev) {
1035 printk (KERN_ERR PFX "unable to allocate etherdev, aborting\n");
1036 goto out;
1037 }
1da177e4
LT		 1038 SET_NETDEV_DEV(dev, gendev);
1039 vp = netdev_priv(dev);
1040
1041 option = global_options;
1042
1043 /* The lower four bits are the media type. */
1044 if (dev->mem_start) {
1045 /*
1046 * The 'options' param is passed in as the third arg to the
1047 * LILO 'ether=' argument for non-modular use
1048 */
1049 option = dev->mem_start;
1050 }
1051 else if (card_idx < MAX_UNITS) {
1052 if (options[card_idx] >= 0)
1053 option = options[card_idx];
1054 }
1055
1056 if (option > 0) {
1057 if (option & 0x8000)
1058 vortex_debug = 7;
1059 if (option & 0x4000)
1060 vortex_debug = 2;
1061 if (option & 0x0400)
1062 vp->enable_wol = 1;
1063 }
1064
1065 print_info = (vortex_debug > 1);
1066 if (print_info)
1067 printk (KERN_INFO "See Documentation/networking/vortex.txt\n");
1068
61238602 1069 printk(KERN_INFO "%s: 3Com %s %s at %p.\n",
1da177e4
LT		 1070 print_name,
1071 pdev ? "PCI" : "EISA",
1072 vci->name,
1073 ioaddr);
1074
62afe595 1075 dev->base_addr = (unsigned long)ioaddr;
1da177e4
LT		 1076 dev->irq = irq;
1077 dev->mtu = mtu;
62afe595 1078 vp->ioaddr = ioaddr;
1da177e4
LT		 1079 vp->large_frames = mtu > 1500;
1080 vp->drv_flags = vci->drv_flags;
1081 vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0;
1082 vp->io_size = vci->io_size;
1083 vp->card_idx = card_idx;
1084
1085 /* module list only for Compaq device */
1086 if (gendev == NULL) {
1087 compaq_net_device = dev;
1088 }
1089
1090 /* PCI-only startup logic */
1091 if (pdev) {
1092 /* EISA resources already marked, so only PCI needs to do this here */
1093 /* Ignore return value, because Cardbus drivers already allocate for us */
62afe595 1094 if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
1da177e4
LT		 1095 vp->must_free_region = 1;
1096
6aa20a22 1097 /* enable bus-mastering if necessary */
1da177e4 1098 if (vci->flags & PCI_USES_MASTER)
a880c4cd 1099 pci_set_master(pdev);
1da177e4
LT		 1100
1101 if (vci->drv_flags & IS_VORTEX) {
1102 u8 pci_latency;
1103 u8 new_latency = 248;
1104
1105 /* Check the PCI latency value. On the 3c590 series the latency timer
1106 must be set to the maximum value to avoid data corruption that occurs
1107 when the timer expires during a transfer. This bug exists the Vortex
1108 chip only. */
1109 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
1110 if (pci_latency < new_latency) {
1111 printk(KERN_INFO "%s: Overriding PCI latency"
1112 " timer (CFLT) setting of %d, new value is %d.\n",
1113 print_name, pci_latency, new_latency);
1114 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
1115 }
1116 }
1117 }
1118
1119 spin_lock_init(&vp->lock);
1120 vp->gendev = gendev;
1121 vp->mii.dev = dev;
1122 vp->mii.mdio_read = mdio_read;
1123 vp->mii.mdio_write = mdio_write;
1124 vp->mii.phy_id_mask = 0x1f;
1125 vp->mii.reg_num_mask = 0x1f;
1126
1127 /* Makes sure rings are at least 16 byte aligned. */
1128 vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
1129 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1130 &vp->rx_ring_dma);
1131 retval = -ENOMEM;
cc2d6596 1132 if (!vp->rx_ring)
1da177e4
LT		 1133 goto free_region;
1134
1135 vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
1136 vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
1137
1138 /* if we are a PCI driver, we store info in pdev->driver_data
6aa20a22 1139 * instead of a module list */
1da177e4
LT		 1140 if (pdev)
1141 pci_set_drvdata(pdev, dev);
1142 if (edev)
a880c4cd 1143 eisa_set_drvdata(edev, dev);
1da177e4
LT		 1144
1145 vp->media_override = 7;
1146 if (option >= 0) {
1147 vp->media_override = ((option & 7) == 2) ? 0 : option & 15;
1148 if (vp->media_override != 7)
1149 vp->medialock = 1;
1150 vp->full_duplex = (option & 0x200) ? 1 : 0;
1151 vp->bus_master = (option & 16) ? 1 : 0;
1152 }
1153
1154 if (global_full_duplex > 0)
1155 vp->full_duplex = 1;
1156 if (global_enable_wol > 0)
1157 vp->enable_wol = 1;
1158
1159 if (card_idx < MAX_UNITS) {
1160 if (full_duplex[card_idx] > 0)
1161 vp->full_duplex = 1;
1162 if (flow_ctrl[card_idx] > 0)
1163 vp->flow_ctrl = 1;
1164 if (enable_wol[card_idx] > 0)
1165 vp->enable_wol = 1;
1166 }
1167
125d5ce8 1168 vp->mii.force_media = vp->full_duplex;
1da177e4
LT		 1169 vp->options = option;
1170 /* Read the station address from the EEPROM. */
1171 EL3WINDOW(0);
1172 {
1173 int base;
1174
1175 if (vci->drv_flags & EEPROM_8BIT)
1176 base = 0x230;
1177 else if (vci->drv_flags & EEPROM_OFFSET)
1178 base = EEPROM_Read + 0x30;
1179 else
1180 base = EEPROM_Read;
1181
1182 for (i = 0; i < 0x40; i++) {
1183 int timer;
62afe595 1184 iowrite16(base + i, ioaddr + Wn0EepromCmd);
1da177e4
LT		 1185 /* Pause for at least 162 us. for the read to take place. */
1186 for (timer = 10; timer >= 0; timer--) {
1187 udelay(162);
62afe595 1188 if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0)
1da177e4
LT		 1189 break;
1190 }
62afe595 1191 eeprom[i] = ioread16(ioaddr + Wn0EepromData);
1da177e4
LT		 1192 }
1193 }
1194 for (i = 0; i < 0x18; i++)
1195 checksum ^= eeprom[i];
1196 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1197 if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */
1198 while (i < 0x21)
1199 checksum ^= eeprom[i++];
1200 checksum = (checksum ^ (checksum >> 8)) & 0xff;
1201 }
1202 if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO))
1203 printk(" ***INVALID CHECKSUM %4.4x*** ", checksum);
1204 for (i = 0; i < 3; i++)
cc2d6596 1205 ((__be16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]);
bb531fc0 1206 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
0795af57 1207 if (print_info)
e174961c 1208 printk(" %pM", dev->dev_addr);
1da177e4
LT		 1209 /* Unfortunately an all zero eeprom passes the checksum and this
1210 gets found in the wild in failure cases. Crypto is hard 8) */
1211 if (!is_valid_ether_addr(dev->dev_addr)) {
1212 retval = -EINVAL;
1213 printk(KERN_ERR "*** EEPROM MAC address is invalid.\n");
1214 goto free_ring; /* With every pack */
1215 }
1216 EL3WINDOW(2);
1217 for (i = 0; i < 6; i++)
62afe595 1218 iowrite8(dev->dev_addr[i], ioaddr + i);
1da177e4 1219
1da177e4
LT		 1220 if (print_info)
1221 printk(", IRQ %d\n", dev->irq);
1222 /* Tell them about an invalid IRQ. */
60e4ad7a 1223 if (dev->irq <= 0 || dev->irq >= nr_irqs)
1da177e4
LT		 1224 printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***\n",
1225 dev->irq);
1da177e4
LT		 1226
1227 EL3WINDOW(4);
62afe595 1228 step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1;
1da177e4
LT		 1229 if (print_info) {
1230 printk(KERN_INFO " product code %02x%02x rev %02x.%d date %02d-"
1231 "%02d-%02d\n", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14],
1232 step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9);
1233 }
1234
1235
1236 if (pdev && vci->drv_flags & HAS_CB_FNS) {
1da177e4
LT		 1237 unsigned short n;
1238
62afe595
JL		 1239 vp->cb_fn_base = pci_iomap(pdev, 2, 0);
1240 if (!vp->cb_fn_base) {
1da177e4 1241 retval = -ENOMEM;
62afe595 1242 goto free_ring;
1da177e4 1243 }
62afe595 1244
1da177e4 1245 if (print_info) {
7c7459d1
GKH		 1246 printk(KERN_INFO "%s: CardBus functions mapped "
1247 "%16.16llx->%p\n",
1248 print_name,
1249 (unsigned long long)pci_resource_start(pdev, 2),
62afe595 1250 vp->cb_fn_base);
1da177e4
LT		 1251 }
1252 EL3WINDOW(2);
1253
62afe595 1254 n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
1da177e4
LT		 1255 if (vp->drv_flags & INVERT_LED_PWR)
1256 n |= 0x10;
1257 if (vp->drv_flags & INVERT_MII_PWR)
1258 n |= 0x4000;
62afe595 1259 iowrite16(n, ioaddr + Wn2_ResetOptions);
1da177e4
LT		 1260 if (vp->drv_flags & WNO_XCVR_PWR) {
1261 EL3WINDOW(0);
62afe595 1262 iowrite16(0x0800, ioaddr);
1da177e4
LT		 1263 }
1264 }
1265
1266 /* Extract our information from the EEPROM data. */
1267 vp->info1 = eeprom[13];
1268 vp->info2 = eeprom[15];
1269 vp->capabilities = eeprom[16];
1270
1271 if (vp->info1 & 0x8000) {
1272 vp->full_duplex = 1;
1273 if (print_info)
1274 printk(KERN_INFO "Full duplex capable\n");
1275 }
1276
1277 {
f71e1309 1278 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
1da177e4
LT		 1279 unsigned int config;
1280 EL3WINDOW(3);
62afe595 1281 vp->available_media = ioread16(ioaddr + Wn3_Options);
1da177e4
LT		 1282 if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */
1283 vp->available_media = 0x40;
62afe595 1284 config = ioread32(ioaddr + Wn3_Config);
1da177e4
LT		 1285 if (print_info) {
1286 printk(KERN_DEBUG " Internal config register is %4.4x, "
62afe595 1287 "transceivers %#x.\n", config, ioread16(ioaddr + Wn3_Options));
1da177e4
LT		 1288 printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
1289 8 << RAM_SIZE(config),
1290 RAM_WIDTH(config) ? "word" : "byte",
1291 ram_split[RAM_SPLIT(config)],
1292 AUTOSELECT(config) ? "autoselect/" : "",
1293 XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" :
1294 media_tbl[XCVR(config)].name);
1295 }
1296 vp->default_media = XCVR(config);
1297 if (vp->default_media == XCVR_NWAY)
1298 vp->has_nway = 1;
1299 vp->autoselect = AUTOSELECT(config);
1300 }
1301
1302 if (vp->media_override != 7) {
1303 printk(KERN_INFO "%s: Media override to transceiver type %d (%s).\n",
1304 print_name, vp->media_override,
1305 media_tbl[vp->media_override].name);
1306 dev->if_port = vp->media_override;
1307 } else
1308 dev->if_port = vp->default_media;
1309
1310 if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) ||
1311 dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1312 int phy, phy_idx = 0;
1313 EL3WINDOW(4);
1314 mii_preamble_required++;
1315 if (vp->drv_flags & EXTRA_PREAMBLE)
1316 mii_preamble_required++;
1317 mdio_sync(ioaddr, 32);
106427e6 1318 mdio_read(dev, 24, MII_BMSR);
1da177e4
LT		 1319 for (phy = 0; phy < 32 && phy_idx < 1; phy++) {
1320 int mii_status, phyx;
1321
1322 /*
1323 * For the 3c905CX we look at index 24 first, because it bogusly
1324 * reports an external PHY at all indices
1325 */
1326 if (phy == 0)
1327 phyx = 24;
1328 else if (phy <= 24)
1329 phyx = phy - 1;
1330 else
1331 phyx = phy;
106427e6 1332 mii_status = mdio_read(dev, phyx, MII_BMSR);
1da177e4
LT		 1333 if (mii_status && mii_status != 0xffff) {
1334 vp->phys[phy_idx++] = phyx;
1335 if (print_info) {
1336 printk(KERN_INFO " MII transceiver found at address %d,"
1337 " status %4x.\n", phyx, mii_status);
1338 }
1339 if ((mii_status & 0x0040) == 0)
1340 mii_preamble_required++;
1341 }
1342 }
1343 mii_preamble_required--;
1344 if (phy_idx == 0) {
1345 printk(KERN_WARNING" ***WARNING*** No MII transceivers found!\n");
1346 vp->phys[0] = 24;
1347 } else {
106427e6 1348 vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE);
1da177e4
LT		 1349 if (vp->full_duplex) {
1350 /* Only advertise the FD media types. */
1351 vp->advertising &= ~0x02A0;
1352 mdio_write(dev, vp->phys[0], 4, vp->advertising);
1353 }
1354 }
1355 vp->mii.phy_id = vp->phys[0];
1356 }
1357
1358 if (vp->capabilities & CapBusMaster) {
1359 vp->full_bus_master_tx = 1;
1360 if (print_info) {
1361 printk(KERN_INFO " Enabling bus-master transmits and %s receives.\n",
1362 (vp->info2 & 1) ? "early" : "whole-frame" );
1363 }
1364 vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2;
1365 vp->bus_master = 0; /* AKPM: vortex only */
1366 }
1367
1368 /* The 3c59x-specific entries in the device structure. */
1369 dev->open = vortex_open;
1370 if (vp->full_bus_master_tx) {
1371 dev->hard_start_xmit = boomerang_start_xmit;
1372 /* Actually, it still should work with iommu. */
32fb5f06
JL		 1373 if (card_idx < MAX_UNITS &&
1374 ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) ||
1375 hw_checksums[card_idx] == 1)) {
d311b0d3 1376 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
1da177e4
LT		 1377 }
1378 } else {
1379 dev->hard_start_xmit = vortex_start_xmit;
1380 }
1381
1382 if (print_info) {
1383 printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabled\n",
1384 print_name,
1385 (dev->features & NETIF_F_SG) ? "en":"dis",
1386 (dev->features & NETIF_F_IP_CSUM) ? "en":"dis");
1387 }
1388
1389 dev->stop = vortex_close;
1390 dev->get_stats = vortex_get_stats;
1391#ifdef CONFIG_PCI
1392 dev->do_ioctl = vortex_ioctl;
1393#endif
1394 dev->ethtool_ops = &vortex_ethtool_ops;
1395 dev->set_multicast_list = set_rx_mode;
1396 dev->tx_timeout = vortex_tx_timeout;
1397 dev->watchdog_timeo = (watchdog * HZ) / 1000;
1398#ifdef CONFIG_NET_POLL_CONTROLLER
6aa20a22 1399 dev->poll_controller = poll_vortex;
1da177e4
LT		 1400#endif
1401 if (pdev) {
1402 vp->pm_state_valid = 1;
1403 pci_save_state(VORTEX_PCI(vp));
1404 acpi_set_WOL(dev);
1405 }
1406 retval = register_netdev(dev);
1407 if (retval == 0)
1408 return 0;
1409
1410free_ring:
1411 pci_free_consistent(pdev,
1412 sizeof(struct boom_rx_desc) * RX_RING_SIZE
1413 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
1414 vp->rx_ring,
1415 vp->rx_ring_dma);
1416free_region:
1417 if (vp->must_free_region)
62afe595 1418 release_region(dev->base_addr, vci->io_size);
1da177e4
LT		 1419 free_netdev(dev);
1420 printk(KERN_ERR PFX "vortex_probe1 fails. Returns %d\n", retval);
1421out:
1422 return retval;
1423}
1424
1425static void
1426issue_and_wait(struct net_device *dev, int cmd)
1427{
62afe595
JL		 1428 struct vortex_private *vp = netdev_priv(dev);
1429 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 1430 int i;
1431
62afe595 1432 iowrite16(cmd, ioaddr + EL3_CMD);
1da177e4 1433 for (i = 0; i < 2000; i++) {
62afe595 1434 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
1da177e4
LT		 1435 return;
1436 }
1437
1438 /* OK, that didn't work. Do it the slow way. One second */
1439 for (i = 0; i < 100000; i++) {
62afe595 1440 if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) {
1da177e4
LT		 1441 if (vortex_debug > 1)
1442 printk(KERN_INFO "%s: command 0x%04x took %d usecs\n",
1443 dev->name, cmd, i * 10);
1444 return;
1445 }
1446 udelay(10);
1447 }
1448 printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n",
62afe595 1449 dev->name, cmd, ioread16(ioaddr + EL3_STATUS));
1da177e4
LT		 1450}
1451
125d5ce8
SK		 1452static void
1453vortex_set_duplex(struct net_device *dev)
1454{
1455 struct vortex_private *vp = netdev_priv(dev);
1456 void __iomem *ioaddr = vp->ioaddr;
1457
1458 printk(KERN_INFO "%s: setting %s-duplex.\n",
1459 dev->name, (vp->full_duplex) ? "full" : "half");
1460
1461 EL3WINDOW(3);
1462 /* Set the full-duplex bit. */
1463 iowrite16(((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) |
1464 (vp->large_frames ? 0x40 : 0) |
1465 ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ?
1466 0x100 : 0),
1467 ioaddr + Wn3_MAC_Ctrl);
125d5ce8
SK		 1468}
1469
1470static void vortex_check_media(struct net_device *dev, unsigned int init)
1471{
1472 struct vortex_private *vp = netdev_priv(dev);
1473 unsigned int ok_to_print = 0;
1474
1475 if (vortex_debug > 3)
1476 ok_to_print = 1;
1477
1478 if (mii_check_media(&vp->mii, ok_to_print, init)) {
1479 vp->full_duplex = vp->mii.full_duplex;
1480 vortex_set_duplex(dev);
1481 } else if (init) {
1482 vortex_set_duplex(dev);
1483 }
1484}
1485
c8303d10 1486static int
1da177e4
LT		 1487vortex_up(struct net_device *dev)
1488{
1da177e4 1489 struct vortex_private *vp = netdev_priv(dev);
62afe595 1490 void __iomem *ioaddr = vp->ioaddr;
1da177e4 1491 unsigned int config;
0280f9f9 1492 int i, mii_reg1, mii_reg5, err = 0;
1da177e4
LT		 1493
1494 if (VORTEX_PCI(vp)) {
1495 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3c8fad18
DR		 1496 if (vp->pm_state_valid)
1497 pci_restore_state(VORTEX_PCI(vp));
c8303d10
MH		 1498 err = pci_enable_device(VORTEX_PCI(vp));
1499 if (err) {
1500 printk(KERN_WARNING "%s: Could not enable device \n",
1501 dev->name);
1502 goto err_out;
1503 }
1da177e4
LT		 1504 }
1505
1506 /* Before initializing select the active media port. */
1507 EL3WINDOW(3);
62afe595 1508 config = ioread32(ioaddr + Wn3_Config);
1da177e4
LT		 1509
1510 if (vp->media_override != 7) {
1511 printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n",
1512 dev->name, vp->media_override,
1513 media_tbl[vp->media_override].name);
1514 dev->if_port = vp->media_override;
1515 } else if (vp->autoselect) {
1516 if (vp->has_nway) {
1517 if (vortex_debug > 1)
1518 printk(KERN_INFO "%s: using NWAY device table, not %d\n",
1519 dev->name, dev->if_port);
1520 dev->if_port = XCVR_NWAY;
1521 } else {
1522 /* Find first available media type, starting with 100baseTx. */
1523 dev->if_port = XCVR_100baseTx;
1524 while (! (vp->available_media & media_tbl[dev->if_port].mask))
1525 dev->if_port = media_tbl[dev->if_port].next;
1526 if (vortex_debug > 1)
1527 printk(KERN_INFO "%s: first available media type: %s\n",
1528 dev->name, media_tbl[dev->if_port].name);
1529 }
1530 } else {
1531 dev->if_port = vp->default_media;
1532 if (vortex_debug > 1)
1533 printk(KERN_INFO "%s: using default media %s\n",
1534 dev->name, media_tbl[dev->if_port].name);
1535 }
1536
1537 init_timer(&vp->timer);
1538 vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait);
1539 vp->timer.data = (unsigned long)dev;
1540 vp->timer.function = vortex_timer; /* timer handler */
1541 add_timer(&vp->timer);
1542
1543 init_timer(&vp->rx_oom_timer);
1544 vp->rx_oom_timer.data = (unsigned long)dev;
1545 vp->rx_oom_timer.function = rx_oom_timer;
1546
1547 if (vortex_debug > 1)
1548 printk(KERN_DEBUG "%s: Initial media type %s.\n",
1549 dev->name, media_tbl[dev->if_port].name);
1550
125d5ce8 1551 vp->full_duplex = vp->mii.force_media;
1da177e4
LT		 1552 config = BFINS(config, dev->if_port, 20, 4);
1553 if (vortex_debug > 6)
1554 printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config);
62afe595 1555 iowrite32(config, ioaddr + Wn3_Config);
1da177e4
LT		 1556
1557 if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) {
1da177e4 1558 EL3WINDOW(4);
09ce3512
SK		 1559 mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR);
1560 mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA);
1561 vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0);
373492d0 1562 vp->mii.full_duplex = vp->full_duplex;
09ce3512 1563
125d5ce8 1564 vortex_check_media(dev, 1);
1da177e4 1565 }
125d5ce8
SK		 1566 else
1567 vortex_set_duplex(dev);
1da177e4 1568
09ce3512
SK		 1569 issue_and_wait(dev, TxReset);
1570 /*
1571 * Don't reset the PHY - that upsets autonegotiation during DHCP operations.
1572 */
1573 issue_and_wait(dev, RxReset|0x04);
1574
1da177e4 1575
62afe595 1576 iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
1da177e4
LT		 1577
1578 if (vortex_debug > 1) {
1579 EL3WINDOW(4);
1580 printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n",
62afe595 1581 dev->name, dev->irq, ioread16(ioaddr + Wn4_Media));
1da177e4
LT		 1582 }
1583
1584 /* Set the station address and mask in window 2 each time opened. */
1585 EL3WINDOW(2);
1586 for (i = 0; i < 6; i++)
62afe595 1587 iowrite8(dev->dev_addr[i], ioaddr + i);
1da177e4 1588 for (; i < 12; i+=2)
62afe595 1589 iowrite16(0, ioaddr + i);
1da177e4
LT		 1590
1591 if (vp->cb_fn_base) {
62afe595 1592 unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010;
1da177e4
LT		 1593 if (vp->drv_flags & INVERT_LED_PWR)
1594 n |= 0x10;
1595 if (vp->drv_flags & INVERT_MII_PWR)
1596 n |= 0x4000;
62afe595 1597 iowrite16(n, ioaddr + Wn2_ResetOptions);
1da177e4
LT		 1598 }
1599
1600 if (dev->if_port == XCVR_10base2)
1601 /* Start the thinnet transceiver. We should really wait 50ms...*/
62afe595 1602 iowrite16(StartCoax, ioaddr + EL3_CMD);
1da177e4
LT		 1603 if (dev->if_port != XCVR_NWAY) {
1604 EL3WINDOW(4);
62afe595 1605 iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) |
1da177e4
LT		 1606 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1607 }
1608
1609 /* Switch to the stats window, and clear all stats by reading. */
62afe595 1610 iowrite16(StatsDisable, ioaddr + EL3_CMD);
1da177e4
LT		 1611 EL3WINDOW(6);
1612 for (i = 0; i < 10; i++)
62afe595
JL		 1613 ioread8(ioaddr + i);
1614 ioread16(ioaddr + 10);
1615 ioread16(ioaddr + 12);
1da177e4
LT		 1616 /* New: On the Vortex we must also clear the BadSSD counter. */
1617 EL3WINDOW(4);
62afe595 1618 ioread8(ioaddr + 12);
1da177e4 1619 /* ..and on the Boomerang we enable the extra statistics bits. */
62afe595 1620 iowrite16(0x0040, ioaddr + Wn4_NetDiag);
1da177e4
LT		 1621
1622 /* Switch to register set 7 for normal use. */
1623 EL3WINDOW(7);
1624
1625 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1626 vp->cur_rx = vp->dirty_rx = 0;
1627 /* Initialize the RxEarly register as recommended. */
62afe595
JL		 1628 iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD);
1629 iowrite32(0x0020, ioaddr + PktStatus);
1630 iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr);
1da177e4
LT		 1631 }
1632 if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
1633 vp->cur_tx = vp->dirty_tx = 0;
1634 if (vp->drv_flags & IS_BOOMERANG)
62afe595 1635 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */
1da177e4
LT		 1636 /* Clear the Rx, Tx rings. */
1637 for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */
1638 vp->rx_ring[i].status = 0;
1639 for (i = 0; i < TX_RING_SIZE; i++)
1640 vp->tx_skbuff[i] = NULL;
62afe595 1641 iowrite32(0, ioaddr + DownListPtr);
1da177e4
LT		 1642 }
1643 /* Set receiver mode: presumably accept b-case and phys addr only. */
1644 set_rx_mode(dev);
1645 /* enable 802.1q tagged frames */
1646 set_8021q_mode(dev, 1);
62afe595 1647 iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
1da177e4 1648
62afe595
JL		 1649 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1650 iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
1da177e4
LT		 1651 /* Allow status bits to be seen. */
1652 vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete|
1653 (vp->full_bus_master_tx ? DownComplete : TxAvailable) |
1654 (vp->full_bus_master_rx ? UpComplete : RxComplete) |
1655 (vp->bus_master ? DMADone : 0);
1656 vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable |
1657 (vp->full_bus_master_rx ? 0 : RxComplete) |
1658 StatsFull | HostError | TxComplete | IntReq
1659 | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete;
62afe595 1660 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
1da177e4 1661 /* Ack all pending events, and set active indicator mask. */
62afe595 1662 iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
1da177e4 1663 ioaddr + EL3_CMD);
62afe595 1664 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
1da177e4 1665 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
62afe595 1666 iowrite32(0x8000, vp->cb_fn_base + 4);
1da177e4 1667 netif_start_queue (dev);
c8303d10
MH		 1668err_out:
1669 return err;
1da177e4
LT		 1670}
1671
1672static int
1673vortex_open(struct net_device *dev)
1674{
1675 struct vortex_private *vp = netdev_priv(dev);
1676 int i;
1677 int retval;
1678
1679 /* Use the now-standard shared IRQ implementation. */
1680 if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ?
1fb9df5d 1681 &boomerang_interrupt : &vortex_interrupt, IRQF_SHARED, dev->name, dev))) {
1da177e4 1682 printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq);
c8303d10 1683 goto err;
1da177e4
LT		 1684 }
1685
1686 if (vp->full_bus_master_rx) { /* Boomerang bus master. */
1687 if (vortex_debug > 2)
1688 printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name);
1689 for (i = 0; i < RX_RING_SIZE; i++) {
1690 struct sk_buff *skb;
1691 vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1));
1692 vp->rx_ring[i].status = 0; /* Clear complete bit. */
1693 vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG);
9a5d3414
SH		 1694
1695 skb = __netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN,
1696 GFP_KERNEL);
1da177e4
LT		 1697 vp->rx_skbuff[i] = skb;
1698 if (skb == NULL)
1699 break; /* Bad news! */
9a5d3414
SH		 1700
1701 skb_reserve(skb, NET_IP_ALIGN); /* Align IP on 16 byte boundaries */
689be439 1702 vp->rx_ring[i].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
1da177e4
LT		 1703 }
1704 if (i != RX_RING_SIZE) {
1705 int j;
1706 printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name);
1707 for (j = 0; j < i; j++) {
1708 if (vp->rx_skbuff[j]) {
1709 dev_kfree_skb(vp->rx_skbuff[j]);
1710 vp->rx_skbuff[j] = NULL;
1711 }
1712 }
1713 retval = -ENOMEM;
c8303d10 1714 goto err_free_irq;
1da177e4
LT		 1715 }
1716 /* Wrap the ring. */
1717 vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma);
1718 }
1719
c8303d10
MH		 1720 retval = vortex_up(dev);
1721 if (!retval)
1722 goto out;
1da177e4 1723
c8303d10 1724err_free_irq:
1da177e4 1725 free_irq(dev->irq, dev);
c8303d10 1726err:
1da177e4
LT		 1727 if (vortex_debug > 1)
1728 printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval);
c8303d10 1729out:
1da177e4
LT		 1730 return retval;
1731}
1732
1733static void
1734vortex_timer(unsigned long data)
1735{
1736 struct net_device *dev = (struct net_device *)data;
1737 struct vortex_private *vp = netdev_priv(dev);
62afe595 1738 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 1739 int next_tick = 60*HZ;
1740 int ok = 0;
125d5ce8 1741 int media_status, old_window;
1da177e4
LT		 1742
1743 if (vortex_debug > 2) {
1744 printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n",
1745 dev->name, media_tbl[dev->if_port].name);
1746 printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
1747 }
1748
0a9da4bd 1749 disable_irq_lockdep(dev->irq);
62afe595 1750 old_window = ioread16(ioaddr + EL3_CMD) >> 13;
1da177e4 1751 EL3WINDOW(4);
62afe595 1752 media_status = ioread16(ioaddr + Wn4_Media);
1da177e4
LT		 1753 switch (dev->if_port) {
1754 case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx:
1755 if (media_status & Media_LnkBeat) {
1756 netif_carrier_on(dev);
1757 ok = 1;
1758 if (vortex_debug > 1)
1759 printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n",
1760 dev->name, media_tbl[dev->if_port].name, media_status);
1761 } else {
1762 netif_carrier_off(dev);
1763 if (vortex_debug > 1) {
1764 printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n",
1765 dev->name, media_tbl[dev->if_port].name, media_status);
1766 }
1767 }
1768 break;
1769 case XCVR_MII: case XCVR_NWAY:
1770 {
1da177e4 1771 ok = 1;
c5643cab
IM		 1772 /* Interrupts are already disabled */
1773 spin_lock(&vp->lock);
125d5ce8 1774 vortex_check_media(dev, 0);
c5643cab 1775 spin_unlock(&vp->lock);
1da177e4
LT		 1776 }
1777 break;
1778 default: /* Other media types handled by Tx timeouts. */
1779 if (vortex_debug > 1)
1780 printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n",
1781 dev->name, media_tbl[dev->if_port].name, media_status);
1782 ok = 1;
1783 }
b4ff6450
SK		 1784
1785 if (!netif_carrier_ok(dev))
1786 next_tick = 5*HZ;
1787
e94d10eb
SK		 1788 if (vp->medialock)
1789 goto leave_media_alone;
1790
a880c4cd 1791 if (!ok) {
1da177e4
LT		 1792 unsigned int config;
1793
1794 do {
1795 dev->if_port = media_tbl[dev->if_port].next;
1796 } while ( ! (vp->available_media & media_tbl[dev->if_port].mask));
1797 if (dev->if_port == XCVR_Default) { /* Go back to default. */
1798 dev->if_port = vp->default_media;
1799 if (vortex_debug > 1)
1800 printk(KERN_DEBUG "%s: Media selection failing, using default "
1801 "%s port.\n",
1802 dev->name, media_tbl[dev->if_port].name);
1803 } else {
1804 if (vortex_debug > 1)
1805 printk(KERN_DEBUG "%s: Media selection failed, now trying "
1806 "%s port.\n",
1807 dev->name, media_tbl[dev->if_port].name);
1808 next_tick = media_tbl[dev->if_port].wait;
1809 }
62afe595 1810 iowrite16((media_status & ~(Media_10TP|Media_SQE)) |
1da177e4
LT		 1811 media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media);
1812
1813 EL3WINDOW(3);
62afe595 1814 config = ioread32(ioaddr + Wn3_Config);
1da177e4 1815 config = BFINS(config, dev->if_port, 20, 4);
62afe595 1816 iowrite32(config, ioaddr + Wn3_Config);
1da177e4 1817
62afe595 1818 iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax,
1da177e4
LT		 1819 ioaddr + EL3_CMD);
1820 if (vortex_debug > 1)
1821 printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config);
1822 /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */
1823 }
1da177e4
LT		 1824
1825leave_media_alone:
1826 if (vortex_debug > 2)
1827 printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n",
1828 dev->name, media_tbl[dev->if_port].name);
1829
e94d10eb 1830 EL3WINDOW(old_window);
0a9da4bd 1831 enable_irq_lockdep(dev->irq);
1da177e4
LT		 1832 mod_timer(&vp->timer, RUN_AT(next_tick));
1833 if (vp->deferred)
62afe595 1834 iowrite16(FakeIntr, ioaddr + EL3_CMD);
1da177e4
LT		 1835 return;
1836}
1837
1838static void vortex_tx_timeout(struct net_device *dev)
1839{
1840 struct vortex_private *vp = netdev_priv(dev);
62afe595 1841 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 1842
1843 printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n",
62afe595
JL		 1844 dev->name, ioread8(ioaddr + TxStatus),
1845 ioread16(ioaddr + EL3_STATUS));
1da177e4
LT		 1846 EL3WINDOW(4);
1847 printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n",
62afe595
JL		 1848 ioread16(ioaddr + Wn4_NetDiag),
1849 ioread16(ioaddr + Wn4_Media),
1850 ioread32(ioaddr + PktStatus),
1851 ioread16(ioaddr + Wn4_FIFODiag));
1da177e4 1852 /* Slight code bloat to be user friendly. */
62afe595 1853 if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88)
1da177e4
LT		 1854 printk(KERN_ERR "%s: Transmitter encountered 16 collisions --"
1855 " network cable problem?\n", dev->name);
62afe595 1856 if (ioread16(ioaddr + EL3_STATUS) & IntLatch) {
1da177e4
LT		 1857 printk(KERN_ERR "%s: Interrupt posted but not delivered --"
1858 " IRQ blocked by another device?\n", dev->name);
1859 /* Bad idea here.. but we might as well handle a few events. */
1860 {
1861 /*
1862 * Block interrupts because vortex_interrupt does a bare spin_lock()
1863 */
1864 unsigned long flags;
1865 local_irq_save(flags);
1866 if (vp->full_bus_master_tx)
7d12e780 1867 boomerang_interrupt(dev->irq, dev);
1da177e4 1868 else
7d12e780 1869 vortex_interrupt(dev->irq, dev);
1da177e4
LT		 1870 local_irq_restore(flags);
1871 }
1872 }
1873
1874 if (vortex_debug > 0)
1875 dump_tx_ring(dev);
1876
1877 issue_and_wait(dev, TxReset);
1878
1daad055 1879 dev->stats.tx_errors++;
1da177e4
LT		 1880 if (vp->full_bus_master_tx) {
1881 printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name);
62afe595
JL		 1882 if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0)
1883 iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc),
1da177e4
LT		 1884 ioaddr + DownListPtr);
1885 if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
1886 netif_wake_queue (dev);
1887 if (vp->drv_flags & IS_BOOMERANG)
62afe595
JL		 1888 iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
1889 iowrite16(DownUnstall, ioaddr + EL3_CMD);
1da177e4 1890 } else {
1daad055 1891 dev->stats.tx_dropped++;
1da177e4
LT		 1892 netif_wake_queue(dev);
1893 }
6aa20a22 1894
1da177e4 1895 /* Issue Tx Enable */
62afe595 1896 iowrite16(TxEnable, ioaddr + EL3_CMD);
1da177e4 1897 dev->trans_start = jiffies;
6aa20a22 1898
1da177e4
LT		 1899 /* Switch to register set 7 for normal use. */
1900 EL3WINDOW(7);
1901}
1902
1903/*
1904 * Handle uncommon interrupt sources. This is a separate routine to minimize
1905 * the cache impact.
1906 */
1907static void
1908vortex_error(struct net_device *dev, int status)
1909{
1910 struct vortex_private *vp = netdev_priv(dev);
62afe595 1911 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 1912 int do_tx_reset = 0, reset_mask = 0;
1913 unsigned char tx_status = 0;
1914
1915 if (vortex_debug > 2) {
1916 printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status);
1917 }
1918
1919 if (status & TxComplete) { /* Really "TxError" for us. */
62afe595 1920 tx_status = ioread8(ioaddr + TxStatus);
1da177e4
LT		 1921 /* Presumably a tx-timeout. We must merely re-enable. */
1922 if (vortex_debug > 2
1923 || (tx_status != 0x88 && vortex_debug > 0)) {
1924 printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n",
1925 dev->name, tx_status);
1926 if (tx_status == 0x82) {
1927 printk(KERN_ERR "Probably a duplex mismatch. See "
1928 "Documentation/networking/vortex.txt\n");
1929 }
1930 dump_tx_ring(dev);
1931 }
1daad055
PZ		 1932 if (tx_status & 0x14) dev->stats.tx_fifo_errors++;
1933 if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
0000754c 1934 if (tx_status & 0x08) vp->xstats.tx_max_collisions++;
62afe595 1935 iowrite8(0, ioaddr + TxStatus);
1da177e4
LT		 1936 if (tx_status & 0x30) { /* txJabber or txUnderrun */
1937 do_tx_reset = 1;
0000754c
AM		 1938 } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */
1939 do_tx_reset = 1;
1940 reset_mask = 0x0108; /* Reset interface logic, but not download logic */
1941 } else { /* Merely re-enable the transmitter. */
62afe595 1942 iowrite16(TxEnable, ioaddr + EL3_CMD);
1da177e4
LT		 1943 }
1944 }
1945
1946 if (status & RxEarly) { /* Rx early is unused. */
1947 vortex_rx(dev);
62afe595 1948 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
1da177e4
LT		 1949 }
1950 if (status & StatsFull) { /* Empty statistics. */
1951 static int DoneDidThat;
1952 if (vortex_debug > 4)
1953 printk(KERN_DEBUG "%s: Updating stats.\n", dev->name);
1954 update_stats(ioaddr, dev);
1955 /* HACK: Disable statistics as an interrupt source. */
1956 /* This occurs when we have the wrong media type! */
1957 if (DoneDidThat == 0 &&
62afe595 1958 ioread16(ioaddr + EL3_STATUS) & StatsFull) {
1da177e4
LT		 1959 printk(KERN_WARNING "%s: Updating statistics failed, disabling "
1960 "stats as an interrupt source.\n", dev->name);
1961 EL3WINDOW(5);
62afe595 1962 iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD);
1da177e4
LT		 1963 vp->intr_enable &= ~StatsFull;
1964 EL3WINDOW(7);
1965 DoneDidThat++;
1966 }
1967 }
1968 if (status & IntReq) { /* Restore all interrupt sources. */
62afe595
JL		 1969 iowrite16(vp->status_enable, ioaddr + EL3_CMD);
1970 iowrite16(vp->intr_enable, ioaddr + EL3_CMD);
1da177e4
LT		 1971 }
1972 if (status & HostError) {
1973 u16 fifo_diag;
1974 EL3WINDOW(4);
62afe595 1975 fifo_diag = ioread16(ioaddr + Wn4_FIFODiag);
1da177e4
LT		 1976 printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n",
1977 dev->name, fifo_diag);
1978 /* Adapter failure requires Tx/Rx reset and reinit. */
1979 if (vp->full_bus_master_tx) {
62afe595 1980 int bus_status = ioread32(ioaddr + PktStatus);
1da177e4
LT		 1981 /* 0x80000000 PCI master abort. */
1982 /* 0x40000000 PCI target abort. */
1983 if (vortex_debug)
1984 printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status);
1985
1986 /* In this case, blow the card away */
1987 /* Must not enter D3 or we can't legally issue the reset! */
1988 vortex_down(dev, 0);
1989 issue_and_wait(dev, TotalReset | 0xff);
1990 vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */
1991 } else if (fifo_diag & 0x0400)
1992 do_tx_reset = 1;
1993 if (fifo_diag & 0x3000) {
1994 /* Reset Rx fifo and upload logic */
1995 issue_and_wait(dev, RxReset|0x07);
1996 /* Set the Rx filter to the current state. */
1997 set_rx_mode(dev);
1998 /* enable 802.1q VLAN tagged frames */
1999 set_8021q_mode(dev, 1);
62afe595
JL		 2000 iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
2001 iowrite16(AckIntr | HostError, ioaddr + EL3_CMD);
1da177e4
LT		 2002 }
2003 }
2004
2005 if (do_tx_reset) {
2006 issue_and_wait(dev, TxReset|reset_mask);
62afe595 2007 iowrite16(TxEnable, ioaddr + EL3_CMD);
1da177e4
LT		 2008 if (!vp->full_bus_master_tx)
2009 netif_wake_queue(dev);
2010 }
2011}
2012
2013static int
2014vortex_start_xmit(struct sk_buff *skb, struct net_device *dev)
2015{
2016 struct vortex_private *vp = netdev_priv(dev);
62afe595 2017 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2018
2019 /* Put out the doubleword header... */
62afe595 2020 iowrite32(skb->len, ioaddr + TX_FIFO);
1da177e4
LT		 2021 if (vp->bus_master) {
2022 /* Set the bus-master controller to transfer the packet. */
2023 int len = (skb->len + 3) & ~3;
a880c4cd 2024 iowrite32(vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE),
1da177e4 2025 ioaddr + Wn7_MasterAddr);
62afe595 2026 iowrite16(len, ioaddr + Wn7_MasterLen);
1da177e4 2027 vp->tx_skb = skb;
62afe595 2028 iowrite16(StartDMADown, ioaddr + EL3_CMD);
1da177e4
LT		 2029 /* netif_wake_queue() will be called at the DMADone interrupt. */
2030 } else {
2031 /* ... and the packet rounded to a doubleword. */
62afe595 2032 iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
1da177e4 2033 dev_kfree_skb (skb);
62afe595 2034 if (ioread16(ioaddr + TxFree) > 1536) {
1da177e4
LT		 2035 netif_start_queue (dev); /* AKPM: redundant? */
2036 } else {
2037 /* Interrupt us when the FIFO has room for max-sized packet. */
2038 netif_stop_queue(dev);
62afe595 2039 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
1da177e4
LT		 2040 }
2041 }
2042
2043 dev->trans_start = jiffies;
2044
2045 /* Clear the Tx status stack. */
2046 {
2047 int tx_status;
2048 int i = 32;
2049
62afe595 2050 while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) {
1da177e4
LT		 2051 if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */
2052 if (vortex_debug > 2)
2053 printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n",
2054 dev->name, tx_status);
1daad055
PZ		 2055 if (tx_status & 0x04) dev->stats.tx_fifo_errors++;
2056 if (tx_status & 0x38) dev->stats.tx_aborted_errors++;
1da177e4
LT		 2057 if (tx_status & 0x30) {
2058 issue_and_wait(dev, TxReset);
2059 }
62afe595 2060 iowrite16(TxEnable, ioaddr + EL3_CMD);
1da177e4 2061 }
62afe595 2062 iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */
1da177e4
LT		 2063 }
2064 }
2065 return 0;
2066}
2067
2068static int
2069boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
2070{
2071 struct vortex_private *vp = netdev_priv(dev);
62afe595 2072 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2073 /* Calculate the next Tx descriptor entry. */
2074 int entry = vp->cur_tx % TX_RING_SIZE;
2075 struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE];
2076 unsigned long flags;
2077
2078 if (vortex_debug > 6) {
2079 printk(KERN_DEBUG "boomerang_start_xmit()\n");
0f667ff5
JL		 2080 printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n",
2081 dev->name, vp->cur_tx);
1da177e4
LT		 2082 }
2083
2084 if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
2085 if (vortex_debug > 0)
2086 printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n",
2087 dev->name);
2088 netif_stop_queue(dev);
2089 return 1;
2090 }
2091
2092 vp->tx_skbuff[entry] = skb;
2093
2094 vp->tx_ring[entry].next = 0;
2095#if DO_ZEROCOPY
84fa7933 2096 if (skb->ip_summed != CHECKSUM_PARTIAL)
1da177e4
LT		 2097 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2098 else
2099 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum);
2100
2101 if (!skb_shinfo(skb)->nr_frags) {
2102 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2103 skb->len, PCI_DMA_TODEVICE));
2104 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG);
2105 } else {
2106 int i;
2107
2108 vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data,
2109 skb->len-skb->data_len, PCI_DMA_TODEVICE));
2110 vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len);
2111
2112 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2113 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2114
2115 vp->tx_ring[entry].frag[i+1].addr =
2116 cpu_to_le32(pci_map_single(VORTEX_PCI(vp),
2117 (void*)page_address(frag->page) + frag->page_offset,
2118 frag->size, PCI_DMA_TODEVICE));
2119
2120 if (i == skb_shinfo(skb)->nr_frags-1)
2121 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG);
2122 else
2123 vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size);
2124 }
2125 }
2126#else
2127 vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
2128 vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG);
2129 vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded);
2130#endif
2131
2132 spin_lock_irqsave(&vp->lock, flags);
2133 /* Wait for the stall to complete. */
2134 issue_and_wait(dev, DownStall);
2135 prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc));
62afe595
JL		 2136 if (ioread32(ioaddr + DownListPtr) == 0) {
2137 iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr);
1da177e4
LT		 2138 vp->queued_packet++;
2139 }
2140
2141 vp->cur_tx++;
2142 if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) {
2143 netif_stop_queue (dev);
2144 } else { /* Clear previous interrupt enable. */
2145#if defined(tx_interrupt_mitigation)
2146 /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef
2147 * were selected, this would corrupt DN_COMPLETE. No?
2148 */
2149 prev_entry->status &= cpu_to_le32(~TxIntrUploaded);
2150#endif
2151 }
62afe595 2152 iowrite16(DownUnstall, ioaddr + EL3_CMD);
1da177e4
LT		 2153 spin_unlock_irqrestore(&vp->lock, flags);
2154 dev->trans_start = jiffies;
2155 return 0;
2156}
2157
2158/* The interrupt handler does all of the Rx thread work and cleans up
2159 after the Tx thread. */
2160
2161/*
2162 * This is the ISR for the vortex series chips.
2163 * full_bus_master_tx == 0 && full_bus_master_rx == 0
2164 */
2165
2166static irqreturn_t
7d12e780 2167vortex_interrupt(int irq, void *dev_id)
1da177e4
LT		 2168{
2169 struct net_device *dev = dev_id;
2170 struct vortex_private *vp = netdev_priv(dev);
62afe595 2171 void __iomem *ioaddr;
1da177e4
LT		 2172 int status;
2173 int work_done = max_interrupt_work;
2174 int handled = 0;
2175
62afe595 2176 ioaddr = vp->ioaddr;
1da177e4
LT		 2177 spin_lock(&vp->lock);
2178
62afe595 2179 status = ioread16(ioaddr + EL3_STATUS);
1da177e4
LT		 2180
2181 if (vortex_debug > 6)
2182 printk("vortex_interrupt(). status=0x%4x\n", status);
2183
2184 if ((status & IntLatch) == 0)
2185 goto handler_exit; /* No interrupt: shared IRQs cause this */
2186 handled = 1;
2187
2188 if (status & IntReq) {
2189 status |= vp->deferred;
2190 vp->deferred = 0;
2191 }
2192
2193 if (status == 0xffff) /* h/w no longer present (hotplug)? */
2194 goto handler_exit;
2195
2196 if (vortex_debug > 4)
2197 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
62afe595 2198 dev->name, status, ioread8(ioaddr + Timer));
1da177e4
LT		 2199
2200 do {
2201 if (vortex_debug > 5)
2202 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2203 dev->name, status);
2204 if (status & RxComplete)
2205 vortex_rx(dev);
2206
2207 if (status & TxAvailable) {
2208 if (vortex_debug > 5)
2209 printk(KERN_DEBUG " TX room bit was handled.\n");
2210 /* There's room in the FIFO for a full-sized packet. */
62afe595 2211 iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD);
1da177e4
LT		 2212 netif_wake_queue (dev);
2213 }
2214
2215 if (status & DMADone) {
62afe595
JL		 2216 if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) {
2217 iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */
1da177e4
LT		 2218 pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE);
2219 dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */
62afe595 2220 if (ioread16(ioaddr + TxFree) > 1536) {
1da177e4
LT		 2221 /*
2222 * AKPM: FIXME: I don't think we need this. If the queue was stopped due to
2223 * insufficient FIFO room, the TxAvailable test will succeed and call
2224 * netif_wake_queue()
2225 */
2226 netif_wake_queue(dev);
2227 } else { /* Interrupt when FIFO has room for max-sized packet. */
62afe595 2228 iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
1da177e4
LT		 2229 netif_stop_queue(dev);
2230 }
2231 }
2232 }
2233 /* Check for all uncommon interrupts at once. */
2234 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
2235 if (status == 0xffff)
2236 break;
2237 vortex_error(dev, status);
2238 }
2239
2240 if (--work_done < 0) {
2241 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2242 "%4.4x.\n", dev->name, status);
2243 /* Disable all pending interrupts. */
2244 do {
2245 vp->deferred |= status;
62afe595 2246 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
1da177e4 2247 ioaddr + EL3_CMD);
62afe595
JL		 2248 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2249 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
1da177e4
LT		 2250 /* The timer will reenable interrupts. */
2251 mod_timer(&vp->timer, jiffies + 1*HZ);
2252 break;
2253 }
2254 /* Acknowledge the IRQ. */
62afe595
JL		 2255 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
2256 } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete));
1da177e4
LT		 2257
2258 if (vortex_debug > 4)
2259 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2260 dev->name, status);
2261handler_exit:
2262 spin_unlock(&vp->lock);
2263 return IRQ_RETVAL(handled);
2264}
2265
2266/*
2267 * This is the ISR for the boomerang series chips.
2268 * full_bus_master_tx == 1 && full_bus_master_rx == 1
2269 */
2270
2271static irqreturn_t
7d12e780 2272boomerang_interrupt(int irq, void *dev_id)
1da177e4
LT		 2273{
2274 struct net_device *dev = dev_id;
2275 struct vortex_private *vp = netdev_priv(dev);
62afe595 2276 void __iomem *ioaddr;
1da177e4
LT		 2277 int status;
2278 int work_done = max_interrupt_work;
2279
62afe595 2280 ioaddr = vp->ioaddr;
1da177e4
LT		 2281
2282 /*
2283 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
2284 * and boomerang_start_xmit
2285 */
2286 spin_lock(&vp->lock);
2287
62afe595 2288 status = ioread16(ioaddr + EL3_STATUS);
1da177e4
LT		 2289
2290 if (vortex_debug > 6)
2291 printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status);
2292
2293 if ((status & IntLatch) == 0)
2294 goto handler_exit; /* No interrupt: shared IRQs can cause this */
2295
2296 if (status == 0xffff) { /* h/w no longer present (hotplug)? */
2297 if (vortex_debug > 1)
2298 printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n");
2299 goto handler_exit;
2300 }
2301
2302 if (status & IntReq) {
2303 status |= vp->deferred;
2304 vp->deferred = 0;
2305 }
2306
2307 if (vortex_debug > 4)
2308 printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n",
62afe595 2309 dev->name, status, ioread8(ioaddr + Timer));
1da177e4
LT		 2310 do {
2311 if (vortex_debug > 5)
2312 printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n",
2313 dev->name, status);
2314 if (status & UpComplete) {
62afe595 2315 iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD);
1da177e4
LT		 2316 if (vortex_debug > 5)
2317 printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n");
2318 boomerang_rx(dev);
2319 }
2320
2321 if (status & DownComplete) {
2322 unsigned int dirty_tx = vp->dirty_tx;
2323
62afe595 2324 iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD);
1da177e4
LT		 2325 while (vp->cur_tx - dirty_tx > 0) {
2326 int entry = dirty_tx % TX_RING_SIZE;
2327#if 1 /* AKPM: the latter is faster, but cyclone-only */
62afe595 2328 if (ioread32(ioaddr + DownListPtr) ==
1da177e4
LT		 2329 vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc))
2330 break; /* It still hasn't been processed. */
2331#else
2332 if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0)
2333 break; /* It still hasn't been processed. */
2334#endif
6aa20a22 2335
1da177e4
LT		 2336 if (vp->tx_skbuff[entry]) {
2337 struct sk_buff *skb = vp->tx_skbuff[entry];
6aa20a22 2338#if DO_ZEROCOPY
1da177e4
LT		 2339 int i;
2340 for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
2341 pci_unmap_single(VORTEX_PCI(vp),
2342 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
2343 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
2344 PCI_DMA_TODEVICE);
2345#else
2346 pci_unmap_single(VORTEX_PCI(vp),
2347 le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE);
2348#endif
2349 dev_kfree_skb_irq(skb);
2350 vp->tx_skbuff[entry] = NULL;
2351 } else {
2352 printk(KERN_DEBUG "boomerang_interrupt: no skb!\n");
2353 }
1daad055 2354 /* dev->stats.tx_packets++; Counted below. */
1da177e4
LT		 2355 dirty_tx++;
2356 }
2357 vp->dirty_tx = dirty_tx;
2358 if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) {
2359 if (vortex_debug > 6)
2360 printk(KERN_DEBUG "boomerang_interrupt: wake queue\n");
2361 netif_wake_queue (dev);
2362 }
2363 }
2364
2365 /* Check for all uncommon interrupts at once. */
2366 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq))
2367 vortex_error(dev, status);
2368
2369 if (--work_done < 0) {
2370 printk(KERN_WARNING "%s: Too much work in interrupt, status "
2371 "%4.4x.\n", dev->name, status);
2372 /* Disable all pending interrupts. */
2373 do {
2374 vp->deferred |= status;
62afe595 2375 iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable),
1da177e4 2376 ioaddr + EL3_CMD);
62afe595
JL		 2377 iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD);
2378 } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch);
1da177e4
LT		 2379 /* The timer will reenable interrupts. */
2380 mod_timer(&vp->timer, jiffies + 1*HZ);
2381 break;
2382 }
2383 /* Acknowledge the IRQ. */
62afe595 2384 iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
1da177e4 2385 if (vp->cb_fn_base) /* The PCMCIA people are idiots. */
62afe595 2386 iowrite32(0x8000, vp->cb_fn_base + 4);
1da177e4 2387
62afe595 2388 } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch);
1da177e4
LT		 2389
2390 if (vortex_debug > 4)
2391 printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n",
2392 dev->name, status);
2393handler_exit:
2394 spin_unlock(&vp->lock);
2395 return IRQ_HANDLED;
2396}
2397
2398static int vortex_rx(struct net_device *dev)
2399{
2400 struct vortex_private *vp = netdev_priv(dev);
62afe595 2401 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2402 int i;
2403 short rx_status;
2404
2405 if (vortex_debug > 5)
2406 printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n",
62afe595
JL		 2407 ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus));
2408 while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) {
1da177e4 2409 if (rx_status & 0x4000) { /* Error, update stats. */
62afe595 2410 unsigned char rx_error = ioread8(ioaddr + RxErrors);
1da177e4
LT		 2411 if (vortex_debug > 2)
2412 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
1daad055
PZ		 2413 dev->stats.rx_errors++;
2414 if (rx_error & 0x01) dev->stats.rx_over_errors++;
2415 if (rx_error & 0x02) dev->stats.rx_length_errors++;
2416 if (rx_error & 0x04) dev->stats.rx_frame_errors++;
2417 if (rx_error & 0x08) dev->stats.rx_crc_errors++;
2418 if (rx_error & 0x10) dev->stats.rx_length_errors++;
1da177e4
LT		 2419 } else {
2420 /* The packet length: up to 4.5K!. */
2421 int pkt_len = rx_status & 0x1fff;
2422 struct sk_buff *skb;
2423
2424 skb = dev_alloc_skb(pkt_len + 5);
2425 if (vortex_debug > 4)
2426 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2427 pkt_len, rx_status);
2428 if (skb != NULL) {
1da177e4
LT		 2429 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2430 /* 'skb_put()' points to the start of sk_buff data area. */
2431 if (vp->bus_master &&
62afe595 2432 ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) {
1da177e4
LT		 2433 dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len),
2434 pkt_len, PCI_DMA_FROMDEVICE);
62afe595
JL		 2435 iowrite32(dma, ioaddr + Wn7_MasterAddr);
2436 iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
2437 iowrite16(StartDMAUp, ioaddr + EL3_CMD);
2438 while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)
1da177e4
LT		 2439 ;
2440 pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE);
2441 } else {
62afe595
JL		 2442 ioread32_rep(ioaddr + RX_FIFO,
2443 skb_put(skb, pkt_len),
2444 (pkt_len + 3) >> 2);
1da177e4 2445 }
62afe595 2446 iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
1da177e4
LT		 2447 skb->protocol = eth_type_trans(skb, dev);
2448 netif_rx(skb);
2449 dev->last_rx = jiffies;
1daad055 2450 dev->stats.rx_packets++;
1da177e4
LT		 2451 /* Wait a limited time to go to next packet. */
2452 for (i = 200; i >= 0; i--)
62afe595 2453 if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress))
1da177e4
LT		 2454 break;
2455 continue;
2456 } else if (vortex_debug > 0)
2457 printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of "
2458 "size %d.\n", dev->name, pkt_len);
1daad055 2459 dev->stats.rx_dropped++;
1da177e4 2460 }
1da177e4
LT		 2461 issue_and_wait(dev, RxDiscard);
2462 }
2463
2464 return 0;
2465}
2466
2467static int
2468boomerang_rx(struct net_device *dev)
2469{
2470 struct vortex_private *vp = netdev_priv(dev);
2471 int entry = vp->cur_rx % RX_RING_SIZE;
62afe595 2472 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2473 int rx_status;
2474 int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx;
2475
2476 if (vortex_debug > 5)
62afe595 2477 printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS));
1da177e4
LT		 2478
2479 while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){
2480 if (--rx_work_limit < 0)
2481 break;
2482 if (rx_status & RxDError) { /* Error, update stats. */
2483 unsigned char rx_error = rx_status >> 16;
2484 if (vortex_debug > 2)
2485 printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error);
1daad055
PZ		 2486 dev->stats.rx_errors++;
2487 if (rx_error & 0x01) dev->stats.rx_over_errors++;
2488 if (rx_error & 0x02) dev->stats.rx_length_errors++;
2489 if (rx_error & 0x04) dev->stats.rx_frame_errors++;
2490 if (rx_error & 0x08) dev->stats.rx_crc_errors++;
2491 if (rx_error & 0x10) dev->stats.rx_length_errors++;
1da177e4
LT		 2492 } else {
2493 /* The packet length: up to 4.5K!. */
2494 int pkt_len = rx_status & 0x1fff;
2495 struct sk_buff *skb;
2496 dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr);
2497
2498 if (vortex_debug > 4)
2499 printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
2500 pkt_len, rx_status);
2501
2502 /* Check if the packet is long enough to just accept without
2503 copying to a properly sized skbuff. */
cc2d6596 2504 if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
1da177e4
LT		 2505 skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
2506 pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2507 /* 'skb_put()' points to the start of sk_buff data area. */
2508 memcpy(skb_put(skb, pkt_len),
689be439 2509 vp->rx_skbuff[entry]->data,
1da177e4
LT		 2510 pkt_len);
2511 pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2512 vp->rx_copy++;
2513 } else {
2514 /* Pass up the skbuff already on the Rx ring. */
2515 skb = vp->rx_skbuff[entry];
2516 vp->rx_skbuff[entry] = NULL;
2517 skb_put(skb, pkt_len);
2518 pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2519 vp->rx_nocopy++;
2520 }
2521 skb->protocol = eth_type_trans(skb, dev);
2522 { /* Use hardware checksum info. */
2523 int csum_bits = rx_status & 0xee000000;
2524 if (csum_bits &&
2525 (csum_bits == (IPChksumValid | TCPChksumValid) ||
2526 csum_bits == (IPChksumValid | UDPChksumValid))) {
2527 skb->ip_summed = CHECKSUM_UNNECESSARY;
2528 vp->rx_csumhits++;
2529 }
2530 }
2531 netif_rx(skb);
2532 dev->last_rx = jiffies;
1daad055 2533 dev->stats.rx_packets++;
1da177e4
LT		 2534 }
2535 entry = (++vp->cur_rx) % RX_RING_SIZE;
2536 }
2537 /* Refill the Rx ring buffers. */
2538 for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) {
2539 struct sk_buff *skb;
2540 entry = vp->dirty_rx % RX_RING_SIZE;
2541 if (vp->rx_skbuff[entry] == NULL) {
9a5d3414 2542 skb = netdev_alloc_skb(dev, PKT_BUF_SZ + NET_IP_ALIGN);
1da177e4
LT		 2543 if (skb == NULL) {
2544 static unsigned long last_jif;
ff5688ae 2545 if (time_after(jiffies, last_jif + 10 * HZ)) {
1da177e4
LT		 2546 printk(KERN_WARNING "%s: memory shortage\n", dev->name);
2547 last_jif = jiffies;
2548 }
2549 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE)
2550 mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1));
2551 break; /* Bad news! */
2552 }
9a5d3414
SH		 2553
2554 skb_reserve(skb, NET_IP_ALIGN);
689be439 2555 vp->rx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE));
1da177e4
LT		 2556 vp->rx_skbuff[entry] = skb;
2557 }
2558 vp->rx_ring[entry].status = 0; /* Clear complete bit. */
62afe595 2559 iowrite16(UpUnstall, ioaddr + EL3_CMD);
1da177e4
LT		 2560 }
2561 return 0;
2562}
2563
2564/*
2565 * If we've hit a total OOM refilling the Rx ring we poll once a second
2566 * for some memory. Otherwise there is no way to restart the rx process.
2567 */
2568static void
2569rx_oom_timer(unsigned long arg)
2570{
2571 struct net_device *dev = (struct net_device *)arg;
2572 struct vortex_private *vp = netdev_priv(dev);
2573
2574 spin_lock_irq(&vp->lock);
2575 if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */
2576 boomerang_rx(dev);
2577 if (vortex_debug > 1) {
2578 printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name,
2579 ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying");
2580 }
2581 spin_unlock_irq(&vp->lock);
2582}
2583
2584static void
2585vortex_down(struct net_device *dev, int final_down)
2586{
2587 struct vortex_private *vp = netdev_priv(dev);
62afe595 2588 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2589
2590 netif_stop_queue (dev);
2591
2592 del_timer_sync(&vp->rx_oom_timer);
2593 del_timer_sync(&vp->timer);
2594
1daad055 2595 /* Turn off statistics ASAP. We update dev->stats below. */
62afe595 2596 iowrite16(StatsDisable, ioaddr + EL3_CMD);
1da177e4
LT		 2597
2598 /* Disable the receiver and transmitter. */
62afe595
JL		 2599 iowrite16(RxDisable, ioaddr + EL3_CMD);
2600 iowrite16(TxDisable, ioaddr + EL3_CMD);
1da177e4
LT		 2601
2602 /* Disable receiving 802.1q tagged frames */
2603 set_8021q_mode(dev, 0);
2604
2605 if (dev->if_port == XCVR_10base2)
2606 /* Turn off thinnet power. Green! */
62afe595 2607 iowrite16(StopCoax, ioaddr + EL3_CMD);
1da177e4 2608
62afe595 2609 iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1da177e4
LT		 2610
2611 update_stats(ioaddr, dev);
2612 if (vp->full_bus_master_rx)
62afe595 2613 iowrite32(0, ioaddr + UpListPtr);
1da177e4 2614 if (vp->full_bus_master_tx)
62afe595 2615 iowrite32(0, ioaddr + DownListPtr);
1da177e4
LT		 2616
2617 if (final_down && VORTEX_PCI(vp)) {
3c8fad18 2618 vp->pm_state_valid = 1;
1da177e4
LT		 2619 pci_save_state(VORTEX_PCI(vp));
2620 acpi_set_WOL(dev);
2621 }
2622}
2623
2624static int
2625vortex_close(struct net_device *dev)
2626{
2627 struct vortex_private *vp = netdev_priv(dev);
62afe595 2628 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2629 int i;
2630
2631 if (netif_device_present(dev))
2632 vortex_down(dev, 1);
2633
2634 if (vortex_debug > 1) {
2635 printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n",
62afe595 2636 dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus));
1da177e4
LT		 2637 printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d"
2638 " tx_queued %d Rx pre-checksummed %d.\n",
2639 dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits);
2640 }
2641
2642#if DO_ZEROCOPY
32fb5f06
JL		 2643 if (vp->rx_csumhits &&
2644 (vp->drv_flags & HAS_HWCKSM) == 0 &&
2645 (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) {
2646 printk(KERN_WARNING "%s supports hardware checksums, and we're "
2647 "not using them!\n", dev->name);
1da177e4
LT		 2648 }
2649#endif
6aa20a22 2650
1da177e4
LT		 2651 free_irq(dev->irq, dev);
2652
2653 if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */
2654 for (i = 0; i < RX_RING_SIZE; i++)
2655 if (vp->rx_skbuff[i]) {
2656 pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr),
2657 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
2658 dev_kfree_skb(vp->rx_skbuff[i]);
2659 vp->rx_skbuff[i] = NULL;
2660 }
2661 }
2662 if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */
2663 for (i = 0; i < TX_RING_SIZE; i++) {
2664 if (vp->tx_skbuff[i]) {
2665 struct sk_buff *skb = vp->tx_skbuff[i];
2666#if DO_ZEROCOPY
2667 int k;
2668
2669 for (k=0; k<=skb_shinfo(skb)->nr_frags; k++)
2670 pci_unmap_single(VORTEX_PCI(vp),
2671 le32_to_cpu(vp->tx_ring[i].frag[k].addr),
2672 le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF,
2673 PCI_DMA_TODEVICE);
2674#else
2675 pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE);
2676#endif
2677 dev_kfree_skb(skb);
2678 vp->tx_skbuff[i] = NULL;
2679 }
2680 }
2681 }
2682
2683 return 0;
2684}
2685
2686static void
2687dump_tx_ring(struct net_device *dev)
2688{
2689 if (vortex_debug > 0) {
2690 struct vortex_private *vp = netdev_priv(dev);
62afe595 2691 void __iomem *ioaddr = vp->ioaddr;
6aa20a22 2692
1da177e4
LT		 2693 if (vp->full_bus_master_tx) {
2694 int i;
62afe595 2695 int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */
1da177e4
LT		 2696
2697 printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n",
2698 vp->full_bus_master_tx,
2699 vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE,
2700 vp->cur_tx, vp->cur_tx % TX_RING_SIZE);
2701 printk(KERN_ERR " Transmit list %8.8x vs. %p.\n",
62afe595 2702 ioread32(ioaddr + DownListPtr),
1da177e4
LT		 2703 &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]);
2704 issue_and_wait(dev, DownStall);
2705 for (i = 0; i < TX_RING_SIZE; i++) {
2706 printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i,
2707 &vp->tx_ring[i],
2708#if DO_ZEROCOPY
2709 le32_to_cpu(vp->tx_ring[i].frag[0].length),
2710#else
2711 le32_to_cpu(vp->tx_ring[i].length),
2712#endif
2713 le32_to_cpu(vp->tx_ring[i].status));
2714 }
2715 if (!stalled)
62afe595 2716 iowrite16(DownUnstall, ioaddr + EL3_CMD);
1da177e4
LT		 2717 }
2718 }
2719}
2720
2721static struct net_device_stats *vortex_get_stats(struct net_device *dev)
2722{
2723 struct vortex_private *vp = netdev_priv(dev);
62afe595 2724 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2725 unsigned long flags;
2726
2727 if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */
2728 spin_lock_irqsave (&vp->lock, flags);
62afe595 2729 update_stats(ioaddr, dev);
1da177e4
LT		 2730 spin_unlock_irqrestore (&vp->lock, flags);
2731 }
1daad055 2732 return &dev->stats;
1da177e4
LT		 2733}
2734
2735/* Update statistics.
2736 Unlike with the EL3 we need not worry about interrupts changing
2737 the window setting from underneath us, but we must still guard
2738 against a race condition with a StatsUpdate interrupt updating the
2739 table. This is done by checking that the ASM (!) code generated uses
2740 atomic updates with '+='.
2741 */
62afe595 2742static void update_stats(void __iomem *ioaddr, struct net_device *dev)
1da177e4
LT		 2743{
2744 struct vortex_private *vp = netdev_priv(dev);
62afe595 2745 int old_window = ioread16(ioaddr + EL3_CMD);
1da177e4
LT		 2746
2747 if (old_window == 0xffff) /* Chip suspended or ejected. */
2748 return;
2749 /* Unlike the 3c5x9 we need not turn off stats updates while reading. */
2750 /* Switch to the stats window, and read everything. */
2751 EL3WINDOW(6);
1daad055
PZ		 2752 dev->stats.tx_carrier_errors += ioread8(ioaddr + 0);
2753 dev->stats.tx_heartbeat_errors += ioread8(ioaddr + 1);
2754 dev->stats.tx_window_errors += ioread8(ioaddr + 4);
2755 dev->stats.rx_fifo_errors += ioread8(ioaddr + 5);
2756 dev->stats.tx_packets += ioread8(ioaddr + 6);
2757 dev->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4;
62afe595 2758 /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */
1da177e4
LT		 2759 /* Don't bother with register 9, an extension of registers 6&7.
2760 If we do use the 6&7 values the atomic update assumption above
2761 is invalid. */
1daad055
PZ		 2762 dev->stats.rx_bytes += ioread16(ioaddr + 10);
2763 dev->stats.tx_bytes += ioread16(ioaddr + 12);
1da177e4 2764 /* Extra stats for get_ethtool_stats() */
62afe595 2765 vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2);
8d1d0340 2766 vp->xstats.tx_single_collisions += ioread8(ioaddr + 3);
62afe595 2767 vp->xstats.tx_deferred += ioread8(ioaddr + 8);
1da177e4 2768 EL3WINDOW(4);
62afe595 2769 vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12);
1da177e4 2770
1daad055 2771 dev->stats.collisions = vp->xstats.tx_multiple_collisions
8d1d0340
SK		 2772 + vp->xstats.tx_single_collisions
2773 + vp->xstats.tx_max_collisions;
2774
1da177e4 2775 {
62afe595 2776 u8 up = ioread8(ioaddr + 13);
1daad055
PZ		 2777 dev->stats.rx_bytes += (up & 0x0f) << 16;
2778 dev->stats.tx_bytes += (up & 0xf0) << 12;
1da177e4
LT		 2779 }
2780
2781 EL3WINDOW(old_window >> 13);
2782 return;
2783}
2784
2785static int vortex_nway_reset(struct net_device *dev)
2786{
2787 struct vortex_private *vp = netdev_priv(dev);
62afe595 2788 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2789 unsigned long flags;
2790 int rc;
2791
2792 spin_lock_irqsave(&vp->lock, flags);
2793 EL3WINDOW(4);
2794 rc = mii_nway_restart(&vp->mii);
2795 spin_unlock_irqrestore(&vp->lock, flags);
2796 return rc;
2797}
2798
1da177e4
LT		 2799static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2800{
2801 struct vortex_private *vp = netdev_priv(dev);
62afe595 2802 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2803 unsigned long flags;
2804 int rc;
2805
2806 spin_lock_irqsave(&vp->lock, flags);
2807 EL3WINDOW(4);
2808 rc = mii_ethtool_gset(&vp->mii, cmd);
2809 spin_unlock_irqrestore(&vp->lock, flags);
2810 return rc;
2811}
2812
2813static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2814{
2815 struct vortex_private *vp = netdev_priv(dev);
62afe595 2816 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2817 unsigned long flags;
2818 int rc;
2819
2820 spin_lock_irqsave(&vp->lock, flags);
2821 EL3WINDOW(4);
2822 rc = mii_ethtool_sset(&vp->mii, cmd);
2823 spin_unlock_irqrestore(&vp->lock, flags);
2824 return rc;
2825}
2826
2827static u32 vortex_get_msglevel(struct net_device *dev)
2828{
2829 return vortex_debug;
2830}
2831
2832static void vortex_set_msglevel(struct net_device *dev, u32 dbg)
2833{
2834 vortex_debug = dbg;
2835}
2836
b9f2c044 2837static int vortex_get_sset_count(struct net_device *dev, int sset)
1da177e4 2838{
b9f2c044
JG		 2839 switch (sset) {
2840 case ETH_SS_STATS:
2841 return VORTEX_NUM_STATS;
2842 default:
2843 return -EOPNOTSUPP;
2844 }
1da177e4
LT		 2845}
2846
2847static void vortex_get_ethtool_stats(struct net_device *dev,
2848 struct ethtool_stats *stats, u64 *data)
2849{
2850 struct vortex_private *vp = netdev_priv(dev);
62afe595 2851 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2852 unsigned long flags;
2853
2854 spin_lock_irqsave(&vp->lock, flags);
62afe595 2855 update_stats(ioaddr, dev);
1da177e4
LT		 2856 spin_unlock_irqrestore(&vp->lock, flags);
2857
2858 data[0] = vp->xstats.tx_deferred;
8d1d0340
SK		 2859 data[1] = vp->xstats.tx_max_collisions;
2860 data[2] = vp->xstats.tx_multiple_collisions;
2861 data[3] = vp->xstats.tx_single_collisions;
2862 data[4] = vp->xstats.rx_bad_ssd;
1da177e4
LT		 2863}
2864
2865
2866static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data)
2867{
2868 switch (stringset) {
2869 case ETH_SS_STATS:
2870 memcpy(data, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
2871 break;
2872 default:
2873 WARN_ON(1);
2874 break;
2875 }
2876}
2877
2878static void vortex_get_drvinfo(struct net_device *dev,
2879 struct ethtool_drvinfo *info)
2880{
2881 struct vortex_private *vp = netdev_priv(dev);
2882
2883 strcpy(info->driver, DRV_NAME);
1da177e4
LT		 2884 if (VORTEX_PCI(vp)) {
2885 strcpy(info->bus_info, pci_name(VORTEX_PCI(vp)));
2886 } else {
2887 if (VORTEX_EISA(vp))
2888 sprintf(info->bus_info, vp->gendev->bus_id);
2889 else
2890 sprintf(info->bus_info, "EISA 0x%lx %d",
2891 dev->base_addr, dev->irq);
2892 }
2893}
2894
7282d491 2895static const struct ethtool_ops vortex_ethtool_ops = {
1da177e4
LT		 2896 .get_drvinfo = vortex_get_drvinfo,
2897 .get_strings = vortex_get_strings,
2898 .get_msglevel = vortex_get_msglevel,
2899 .set_msglevel = vortex_set_msglevel,
2900 .get_ethtool_stats = vortex_get_ethtool_stats,
b9f2c044 2901 .get_sset_count = vortex_get_sset_count,
1da177e4
LT		 2902 .get_settings = vortex_get_settings,
2903 .set_settings = vortex_set_settings,
373a6887 2904 .get_link = ethtool_op_get_link,
1da177e4
LT		 2905 .nway_reset = vortex_nway_reset,
2906};
2907
2908#ifdef CONFIG_PCI
2909/*
2910 * Must power the device up to do MDIO operations
2911 */
2912static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2913{
2914 int err;
2915 struct vortex_private *vp = netdev_priv(dev);
62afe595 2916 void __iomem *ioaddr = vp->ioaddr;
1da177e4 2917 unsigned long flags;
cc2d6596 2918 pci_power_t state = 0;
1da177e4
LT		 2919
2920 if(VORTEX_PCI(vp))
2921 state = VORTEX_PCI(vp)->current_state;
2922
2923 /* The kernel core really should have pci_get_power_state() */
2924
2925 if(state != 0)
2926 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
2927 spin_lock_irqsave(&vp->lock, flags);
2928 EL3WINDOW(4);
2929 err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
2930 spin_unlock_irqrestore(&vp->lock, flags);
2931 if(state != 0)
2932 pci_set_power_state(VORTEX_PCI(vp), state);
2933
2934 return err;
2935}
2936#endif
2937
2938
2939/* Pre-Cyclone chips have no documented multicast filter, so the only
2940 multicast setting is to receive all multicast frames. At least
2941 the chip has a very clean way to set the mode, unlike many others. */
2942static void set_rx_mode(struct net_device *dev)
2943{
62afe595
JL		 2944 struct vortex_private *vp = netdev_priv(dev);
2945 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 2946 int new_mode;
2947
2948 if (dev->flags & IFF_PROMISC) {
d5b20697 2949 if (vortex_debug > 3)
1da177e4
LT		 2950 printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name);
2951 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm;
2952 } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) {
2953 new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast;
2954 } else
2955 new_mode = SetRxFilter | RxStation | RxBroadcast;
2956
62afe595 2957 iowrite16(new_mode, ioaddr + EL3_CMD);
1da177e4
LT		 2958}
2959
2960#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
2961/* Setup the card so that it can receive frames with an 802.1q VLAN tag.
2962 Note that this must be done after each RxReset due to some backwards
2963 compatibility logic in the Cyclone and Tornado ASICs */
2964
2965/* The Ethernet Type used for 802.1q tagged frames */
2966#define VLAN_ETHER_TYPE 0x8100
2967
2968static void set_8021q_mode(struct net_device *dev, int enable)
2969{
2970 struct vortex_private *vp = netdev_priv(dev);
62afe595
JL		 2971 void __iomem *ioaddr = vp->ioaddr;
2972 int old_window = ioread16(ioaddr + EL3_CMD);
1da177e4
LT		 2973 int mac_ctrl;
2974
2975 if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) {
2976 /* cyclone and tornado chipsets can recognize 802.1q
2977 * tagged frames and treat them correctly */
2978
2979 int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */
2980 if (enable)
2981 max_pkt_size += 4; /* 802.1Q VLAN tag */
2982
2983 EL3WINDOW(3);
62afe595 2984 iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize);
1da177e4
LT		 2985
2986 /* set VlanEtherType to let the hardware checksumming
2987 treat tagged frames correctly */
2988 EL3WINDOW(7);
62afe595 2989 iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType);
1da177e4
LT		 2990 } else {
2991 /* on older cards we have to enable large frames */
2992
2993 vp->large_frames = dev->mtu > 1500 || enable;
2994
2995 EL3WINDOW(3);
62afe595 2996 mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl);
1da177e4
LT		 2997 if (vp->large_frames)
2998 mac_ctrl |= 0x40;
2999 else
3000 mac_ctrl &= ~0x40;
62afe595 3001 iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl);
1da177e4
LT		 3002 }
3003
3004 EL3WINDOW(old_window);
3005}
3006#else
3007
3008static void set_8021q_mode(struct net_device *dev, int enable)
3009{
3010}
3011
3012
3013#endif
3014
3015/* MII transceiver control section.
3016 Read and write the MII registers using software-generated serial
3017 MDIO protocol. See the MII specifications or DP83840A data sheet
3018 for details. */
3019
3020/* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
3021 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
3022 "overclocking" issues. */
62afe595 3023#define mdio_delay() ioread32(mdio_addr)
1da177e4
LT		 3024
3025#define MDIO_SHIFT_CLK 0x01
3026#define MDIO_DIR_WRITE 0x04
3027#define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE)
3028#define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE)
3029#define MDIO_DATA_READ 0x02
3030#define MDIO_ENB_IN 0x00
3031
3032/* Generate the preamble required for initial synchronization and
3033 a few older transceivers. */
62afe595 3034static void mdio_sync(void __iomem *ioaddr, int bits)
1da177e4 3035{
62afe595 3036 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
1da177e4
LT		 3037
3038 /* Establish sync by sending at least 32 logic ones. */
3039 while (-- bits >= 0) {
62afe595 3040 iowrite16(MDIO_DATA_WRITE1, mdio_addr);
1da177e4 3041 mdio_delay();
62afe595 3042 iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
1da177e4
LT		 3043 mdio_delay();
3044 }
3045}
3046
3047static int mdio_read(struct net_device *dev, int phy_id, int location)
3048{
3049 int i;
62afe595
JL		 3050 struct vortex_private *vp = netdev_priv(dev);
3051 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 3052 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
3053 unsigned int retval = 0;
62afe595 3054 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
1da177e4
LT		 3055
3056 if (mii_preamble_required)
3057 mdio_sync(ioaddr, 32);
3058
3059 /* Shift the read command bits out. */
3060 for (i = 14; i >= 0; i--) {
3061 int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
62afe595 3062 iowrite16(dataval, mdio_addr);
1da177e4 3063 mdio_delay();
62afe595 3064 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
1da177e4
LT		 3065 mdio_delay();
3066 }
3067 /* Read the two transition, 16 data, and wire-idle bits. */
3068 for (i = 19; i > 0; i--) {
62afe595 3069 iowrite16(MDIO_ENB_IN, mdio_addr);
1da177e4 3070 mdio_delay();
62afe595
JL		 3071 retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
3072 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
1da177e4
LT		 3073 mdio_delay();
3074 }
3075 return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff;
3076}
3077
3078static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
3079{
62afe595
JL		 3080 struct vortex_private *vp = netdev_priv(dev);
3081 void __iomem *ioaddr = vp->ioaddr;
1da177e4 3082 int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value;
62afe595 3083 void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt;
1da177e4
LT		 3084 int i;
3085
3086 if (mii_preamble_required)
3087 mdio_sync(ioaddr, 32);
3088
3089 /* Shift the command bits out. */
3090 for (i = 31; i >= 0; i--) {
3091 int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
62afe595 3092 iowrite16(dataval, mdio_addr);
1da177e4 3093 mdio_delay();
62afe595 3094 iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr);
1da177e4
LT		 3095 mdio_delay();
3096 }
3097 /* Leave the interface idle. */
3098 for (i = 1; i >= 0; i--) {
62afe595 3099 iowrite16(MDIO_ENB_IN, mdio_addr);
1da177e4 3100 mdio_delay();
62afe595 3101 iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
1da177e4
LT		 3102 mdio_delay();
3103 }
3104 return;
3105}
a880c4cd 3106
1da177e4
LT		 3107/* ACPI: Advanced Configuration and Power Interface. */
3108/* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */
3109static void acpi_set_WOL(struct net_device *dev)
3110{
3111 struct vortex_private *vp = netdev_priv(dev);
62afe595 3112 void __iomem *ioaddr = vp->ioaddr;
1da177e4
LT		 3113
3114 if (vp->enable_wol) {
3115 /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */
3116 EL3WINDOW(7);
62afe595 3117 iowrite16(2, ioaddr + 0x0c);
1da177e4 3118 /* The RxFilter must accept the WOL frames. */
62afe595
JL		 3119 iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
3120 iowrite16(RxEnable, ioaddr + EL3_CMD);
1da177e4 3121
1a1769f3
SK		 3122 if (pci_enable_wake(VORTEX_PCI(vp), PCI_D3hot, 1)) {
3123 printk(KERN_INFO "%s: WOL not supported.\n",
3124 pci_name(VORTEX_PCI(vp)));
3125
3126 vp->enable_wol = 0;
3127 return;
3128 }
3c8fad18
DR		 3129
3130 /* Change the power state to D3; RxEnable doesn't take effect. */
3131 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
1da177e4 3132 }
1da177e4
LT		 3133}
3134
3135
a880c4cd 3136static void __devexit vortex_remove_one(struct pci_dev *pdev)
1da177e4
LT		 3137{
3138 struct net_device *dev = pci_get_drvdata(pdev);
3139 struct vortex_private *vp;
3140
3141 if (!dev) {
3142 printk("vortex_remove_one called for Compaq device!\n");
3143 BUG();
3144 }
3145
3146 vp = netdev_priv(dev);
3147
62afe595
JL		 3148 if (vp->cb_fn_base)
3149 pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
3150
1da177e4
LT		 3151 unregister_netdev(dev);
3152
3153 if (VORTEX_PCI(vp)) {
3154 pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */
3155 if (vp->pm_state_valid)
3156 pci_restore_state(VORTEX_PCI(vp));
3157 pci_disable_device(VORTEX_PCI(vp));
3158 }
3159 /* Should really use issue_and_wait() here */
62afe595
JL		 3160 iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
3161 vp->ioaddr + EL3_CMD);
3162
3163 pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
1da177e4
LT		 3164
3165 pci_free_consistent(pdev,
3166 sizeof(struct boom_rx_desc) * RX_RING_SIZE
3167 + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
3168 vp->rx_ring,
3169 vp->rx_ring_dma);
3170 if (vp->must_free_region)
3171 release_region(dev->base_addr, vp->io_size);
3172 free_netdev(dev);
3173}
3174
3175
3176static struct pci_driver vortex_driver = {
3177 .name = "3c59x",
3178 .probe = vortex_init_one,
3179 .remove = __devexit_p(vortex_remove_one),
3180 .id_table = vortex_pci_tbl,
3181#ifdef CONFIG_PM
3182 .suspend = vortex_suspend,
3183 .resume = vortex_resume,
3184#endif
3185};
3186
3187
3188static int vortex_have_pci;
3189static int vortex_have_eisa;
3190
3191
a880c4cd 3192static int __init vortex_init(void)
1da177e4
LT		 3193{
3194 int pci_rc, eisa_rc;
3195
29917620 3196 pci_rc = pci_register_driver(&vortex_driver);
1da177e4
LT		 3197 eisa_rc = vortex_eisa_init();
3198
3199 if (pci_rc == 0)
3200 vortex_have_pci = 1;
3201 if (eisa_rc > 0)
3202 vortex_have_eisa = 1;
3203
3204 return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV;
3205}
3206
3207
a880c4cd 3208static void __exit vortex_eisa_cleanup(void)
1da177e4
LT		 3209{
3210 struct vortex_private *vp;
62afe595 3211 void __iomem *ioaddr;
1da177e4
LT		 3212
3213#ifdef CONFIG_EISA
3214 /* Take care of the EISA devices */
a880c4cd 3215 eisa_driver_unregister(&vortex_eisa_driver);
1da177e4 3216#endif
6aa20a22 3217
1da177e4
LT		 3218 if (compaq_net_device) {
3219 vp = compaq_net_device->priv;
62afe595
JL		 3220 ioaddr = ioport_map(compaq_net_device->base_addr,
3221 VORTEX_TOTAL_SIZE);
1da177e4 3222
a880c4cd
SK		 3223 unregister_netdev(compaq_net_device);
3224 iowrite16(TotalReset, ioaddr + EL3_CMD);
62afe595
JL		 3225 release_region(compaq_net_device->base_addr,
3226 VORTEX_TOTAL_SIZE);
1da177e4 3227
a880c4cd 3228 free_netdev(compaq_net_device);
1da177e4
LT		 3229 }
3230}
3231
3232
a880c4cd 3233static void __exit vortex_cleanup(void)
1da177e4
LT		 3234{
3235 if (vortex_have_pci)
a880c4cd 3236 pci_unregister_driver(&vortex_driver);
1da177e4 3237 if (vortex_have_eisa)
a880c4cd 3238 vortex_eisa_cleanup();
1da177e4
LT		 3239}
3240
3241
3242module_init(vortex_init);
3243module_exit(vortex_cleanup);
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