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rtl8180: use cached queue mapping for skb in rtl8180_tx
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / ewrk3.c
blob91e59f3a9d6dae11b7deaf1c82f83dc21678a892
1 /* ewrk3.c: A DIGITAL EtherWORKS 3 ethernet driver for Linux.
2
3 Written 1994 by David C. Davies.
4
5 Copyright 1994 Digital Equipment Corporation.
6
7 This software may be used and distributed according to the terms of
8 the GNU General Public License, incorporated herein by reference.
9
10 This driver is written for the Digital Equipment Corporation series
11 of EtherWORKS ethernet cards:
12
13 DE203 Turbo (BNC)
14 DE204 Turbo (TP)
15 DE205 Turbo (TP BNC)
16
17 The driver has been tested on a relatively busy network using the DE205
18 card and benchmarked with 'ttcp': it transferred 16M of data at 975kB/s
19 (7.8Mb/s) to a DECstation 5000/200.
20
21 The author may be reached at davies@maniac.ultranet.com.
22
23 =========================================================================
24 This driver has been written substantially from scratch, although its
25 inheritance of style and stack interface from 'depca.c' and in turn from
26 Donald Becker's 'lance.c' should be obvious.
27
28 The DE203/4/5 boards all use a new proprietary chip in place of the
29 LANCE chip used in prior cards (DEPCA, DE100, DE200/1/2, DE210, DE422).
30 Use the depca.c driver in the standard distribution for the LANCE based
31 cards from DIGITAL; this driver will not work with them.
32
33 The DE203/4/5 cards have 2 main modes: shared memory and I/O only. I/O
34 only makes all the card accesses through I/O transactions and no high
35 (shared) memory is used. This mode provides a >48% performance penalty
36 and is deprecated in this driver, although allowed to provide initial
37 setup when hardstrapped.
38
39 The shared memory mode comes in 3 flavours: 2kB, 32kB and 64kB. There is
40 no point in using any mode other than the 2kB mode - their performances
41 are virtually identical, although the driver has been tested in the 2kB
42 and 32kB modes. I would suggest you uncomment the line:
43
44 FORCE_2K_MODE;
45
46 to allow the driver to configure the card as a 2kB card at your current
47 base address, thus leaving more room to clutter your system box with
48 other memory hungry boards.
49
50 As many ISA and EISA cards can be supported under this driver as you
51 wish, limited primarily by the available IRQ lines, rather than by the
52 available I/O addresses (24 ISA, 16 EISA). I have checked different
53 configurations of multiple depca cards and ewrk3 cards and have not
54 found a problem yet (provided you have at least depca.c v0.38) ...
55
56 The board IRQ setting must be at an unused IRQ which is auto-probed
57 using Donald Becker's autoprobe routines. All these cards are at
58 {5,10,11,15}.
59
60 No 16MB memory limitation should exist with this driver as DMA is not
61 used and the common memory area is in low memory on the network card (my
62 current system has 20MB and I've not had problems yet).
63
64 The ability to load this driver as a loadable module has been included
65 and used extensively during the driver development (to save those long
66 reboot sequences). To utilise this ability, you have to do 8 things:
67
68 0) have a copy of the loadable modules code installed on your system.
69 1) copy ewrk3.c from the /linux/drivers/net directory to your favourite
70 temporary directory.
71 2) edit the source code near line 1898 to reflect the I/O address and
72 IRQ you're using.
73 3) compile ewrk3.c, but include -DMODULE in the command line to ensure
74 that the correct bits are compiled (see end of source code).
75 4) if you are wanting to add a new card, goto 5. Otherwise, recompile a
76 kernel with the ewrk3 configuration turned off and reboot.
77 5) insmod ewrk3.o
78 [Alan Cox: Changed this so you can insmod ewrk3.o irq=x io=y]
79 [Adam Kropelin: now accepts irq=x1,x2 io=y1,y2 for multiple cards]
80 6) run the net startup bits for your new eth?? interface manually
81 (usually /etc/rc.inet[12] at boot time).
82 7) enjoy!
83
84 Note that autoprobing is not allowed in loadable modules - the system is
85 already up and running and you're messing with interrupts.
86
87 To unload a module, turn off the associated interface
88 'ifconfig eth?? down' then 'rmmod ewrk3'.
89
90 Promiscuous mode has been turned off in this driver, but all the
91 multicast address bits have been turned on. This improved the send
92 performance on a busy network by about 13%.
93
94 Ioctl's have now been provided (primarily because I wanted to grab some
95 packet size statistics). They are patterned after 'plipconfig.c' from a
96 suggestion by Alan Cox. Using these ioctls, you can enable promiscuous
97 mode, add/delete multicast addresses, change the hardware address, get
98 packet size distribution statistics and muck around with the control and
99 status register. I'll add others if and when the need arises.
100
101 TO DO:
102 ------
103
104
105 Revision History
106 ----------------
107
108 Version Date Description
109
110 0.1 26-aug-94 Initial writing. ALPHA code release.
111 0.11 31-aug-94 Fixed: 2k mode memory base calc.,
112 LeMAC version calc.,
113 IRQ vector assignments during autoprobe.
114 0.12 31-aug-94 Tested working on LeMAC2 (DE20[345]-AC) card.
115 Fixed up MCA hash table algorithm.
116 0.20 4-sep-94 Added IOCTL functionality.
117 0.21 14-sep-94 Added I/O mode.
118 0.21axp 15-sep-94 Special version for ALPHA AXP Linux V1.0.
119 0.22 16-sep-94 Added more IOCTLs & tidied up.
120 0.23 21-sep-94 Added transmit cut through.
121 0.24 31-oct-94 Added uid checks in some ioctls.
122 0.30 1-nov-94 BETA code release.
123 0.31 5-dec-94 Added check/allocate region code.
124 0.32 16-jan-95 Broadcast packet fix.
125 0.33 10-Feb-95 Fix recognition bug reported by <bkm@star.rl.ac.uk>.
126 0.40 27-Dec-95 Rationalise MODULE and autoprobe code.
127 Rewrite for portability & updated.
128 ALPHA support from <jestabro@amt.tay1.dec.com>
129 Added verify_area() calls in ewrk3_ioctl() from
130 suggestion by <heiko@colossus.escape.de>.
131 Add new multicasting code.
132 0.41 20-Jan-96 Fix IRQ set up problem reported by
133 <kenneth@bbs.sas.ntu.ac.sg>.
134 0.42 22-Apr-96 Fix alloc_device() bug <jari@markkus2.fimr.fi>
135 0.43 16-Aug-96 Update alloc_device() to conform to de4x5.c
136 0.44 08-Nov-01 use library crc32 functions <Matt_Domsch@dell.com>
137 0.45 19-Jul-02 fix unaligned access on alpha <martin@bruli.net>
138 0.46 10-Oct-02 Multiple NIC support when module <akropel1@rochester.rr.com>
139 0.47 18-Oct-02 ethtool support <akropel1@rochester.rr.com>
140 0.48 18-Oct-02 cli/sti removal for 2.5 <vda@port.imtp.ilyichevsk.odessa.ua>
141 ioctl locking, signature search cleanup <akropel1@rochester.rr.com>
142
143 =========================================================================
144 */
145
146 #include <linux/module.h>
147 #include <linux/kernel.h>
148 #include <linux/sched.h>
149 #include <linux/string.h>
150 #include <linux/errno.h>
151 #include <linux/ioport.h>
152 #include <linux/slab.h>
153 #include <linux/interrupt.h>
154 #include <linux/delay.h>
155 #include <linux/init.h>
156 #include <linux/crc32.h>
157 #include <linux/netdevice.h>
158 #include <linux/etherdevice.h>
159 #include <linux/skbuff.h>
160 #include <linux/ethtool.h>
161 #include <linux/time.h>
162 #include <linux/types.h>
163 #include <linux/unistd.h>
164 #include <linux/ctype.h>
165 #include <linux/bitops.h>
166
167 #include <asm/io.h>
168 #include <asm/dma.h>
169 #include <asm/uaccess.h>
170
171 #include "ewrk3.h"
172
173 #define DRV_NAME "ewrk3"
174 #define DRV_VERSION "0.48"
175
176 static char version[] __initdata =
177 DRV_NAME ":v" DRV_VERSION " 2002/10/18 davies@maniac.ultranet.com\n";
178
179 #ifdef EWRK3_DEBUG
180 static int ewrk3_debug = EWRK3_DEBUG;
181 #else
182 static int ewrk3_debug = 1;
183 #endif
184
185 #define EWRK3_NDA 0xffe0 /* No Device Address */
186
187 #define PROBE_LENGTH 32
188 #define ETH_PROM_SIG 0xAA5500FFUL
189
190 #ifndef EWRK3_SIGNATURE
191 #define EWRK3_SIGNATURE {"DE203","DE204","DE205",""}
192 #define EWRK3_STRLEN 8
193 #endif
194
195 #ifndef EWRK3_RAM_BASE_ADDRESSES
196 #define EWRK3_RAM_BASE_ADDRESSES {0xc0000,0xd0000,0x00000}
197 #endif
198
199 /*
200 ** Sets up the I/O area for the autoprobe.
201 */
202 #define EWRK3_IO_BASE 0x100 /* Start address for probe search */
203 #define EWRK3_IOP_INC 0x20 /* I/O address increment */
204 #define EWRK3_TOTAL_SIZE 0x20 /* required I/O address length */
205
206 #ifndef MAX_NUM_EWRK3S
207 #define MAX_NUM_EWRK3S 21
208 #endif
209
210 #ifndef EWRK3_EISA_IO_PORTS
211 #define EWRK3_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
212 #endif
213
214 #ifndef MAX_EISA_SLOTS
215 #define MAX_EISA_SLOTS 16
216 #define EISA_SLOT_INC 0x1000
217 #endif
218
219 #define QUEUE_PKT_TIMEOUT (1*HZ) /* Jiffies */
220
221 /*
222 ** EtherWORKS 3 shared memory window sizes
223 */
224 #define IO_ONLY 0x00
225 #define SHMEM_2K 0x800
226 #define SHMEM_32K 0x8000
227 #define SHMEM_64K 0x10000
228
229 /*
230 ** EtherWORKS 3 IRQ ENABLE/DISABLE
231 */
232 #define ENABLE_IRQs { \
233 icr |= lp->irq_mask;\
234 outb(icr, EWRK3_ICR); /* Enable the IRQs */\
235 }
236
237 #define DISABLE_IRQs { \
238 icr = inb(EWRK3_ICR);\
239 icr &= ~lp->irq_mask;\
240 outb(icr, EWRK3_ICR); /* Disable the IRQs */\
241 }
242
243 /*
244 ** EtherWORKS 3 START/STOP
245 */
246 #define START_EWRK3 { \
247 csr = inb(EWRK3_CSR);\
248 csr &= ~(CSR_TXD|CSR_RXD);\
249 outb(csr, EWRK3_CSR); /* Enable the TX and/or RX */\
250 }
251
252 #define STOP_EWRK3 { \
253 csr = (CSR_TXD|CSR_RXD);\
254 outb(csr, EWRK3_CSR); /* Disable the TX and/or RX */\
255 }
256
257 /*
258 ** The EtherWORKS 3 private structure
259 */
260 #define EWRK3_PKT_STAT_SZ 16
261 #define EWRK3_PKT_BIN_SZ 128 /* Should be >=100 unless you
262 increase EWRK3_PKT_STAT_SZ */
263
264 struct ewrk3_stats {
265 u32 bins[EWRK3_PKT_STAT_SZ];
266 u32 unicast;
267 u32 multicast;
268 u32 broadcast;
269 u32 excessive_collisions;
270 u32 tx_underruns;
271 u32 excessive_underruns;
272 };
273
274 struct ewrk3_private {
275 char adapter_name[80]; /* Name exported to /proc/ioports */
276 u_long shmem_base; /* Shared memory start address */
277 void __iomem *shmem;
278 u_long shmem_length; /* Shared memory window length */
279 struct ewrk3_stats pktStats; /* Private stats counters */
280 u_char irq_mask; /* Adapter IRQ mask bits */
281 u_char mPage; /* Maximum 2kB Page number */
282 u_char lemac; /* Chip rev. level */
283 u_char hard_strapped; /* Don't allow a full open */
284 u_char txc; /* Transmit cut through */
285 void __iomem *mctbl; /* Pointer to the multicast table */
286 u_char led_mask; /* Used to reserve LED access for ethtool */
287 spinlock_t hw_lock;
288 };
289
290 /*
291 ** Force the EtherWORKS 3 card to be in 2kB MODE
292 */
293 #define FORCE_2K_MODE { \
294 shmem_length = SHMEM_2K;\
295 outb(((mem_start - 0x80000) >> 11), EWRK3_MBR);\
296 }
297
298 /*
299 ** Public Functions
300 */
301 static int ewrk3_open(struct net_device *dev);
302 static netdev_tx_t ewrk3_queue_pkt(struct sk_buff *skb, struct net_device *dev);
303 static irqreturn_t ewrk3_interrupt(int irq, void *dev_id);
304 static int ewrk3_close(struct net_device *dev);
305 static void set_multicast_list(struct net_device *dev);
306 static int ewrk3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
307 static const struct ethtool_ops ethtool_ops_203;
308 static const struct ethtool_ops ethtool_ops;
309
310 /*
311 ** Private functions
312 */
313 static int ewrk3_hw_init(struct net_device *dev, u_long iobase);
314 static void ewrk3_init(struct net_device *dev);
315 static int ewrk3_rx(struct net_device *dev);
316 static int ewrk3_tx(struct net_device *dev);
317 static void ewrk3_timeout(struct net_device *dev);
318
319 static void EthwrkSignature(char *name, char *eeprom_image);
320 static int DevicePresent(u_long iobase);
321 static void SetMulticastFilter(struct net_device *dev);
322 static int EISA_signature(char *name, s32 eisa_id);
323
324 static int Read_EEPROM(u_long iobase, u_char eaddr);
325 static int Write_EEPROM(short data, u_long iobase, u_char eaddr);
326 static u_char get_hw_addr(struct net_device *dev, u_char * eeprom_image, char chipType);
327
328 static int ewrk3_probe1(struct net_device *dev, u_long iobase, int irq);
329 static int isa_probe(struct net_device *dev, u_long iobase);
330 static int eisa_probe(struct net_device *dev, u_long iobase);
331
332 static u_char irq[MAX_NUM_EWRK3S+1] = {5, 0, 10, 3, 11, 9, 15, 12};
333
334 static char name[EWRK3_STRLEN + 1];
335 static int num_ewrks3s;
336
337 /*
338 ** Miscellaneous defines...
339 */
340 #define INIT_EWRK3 {\
341 outb(EEPROM_INIT, EWRK3_IOPR);\
342 mdelay(1);\
343 }
344
345 #ifndef MODULE
346 struct net_device * __init ewrk3_probe(int unit)
347 {
348 struct net_device *dev = alloc_etherdev(sizeof(struct ewrk3_private));
349 int err;
350
351 if (!dev)
352 return ERR_PTR(-ENOMEM);
353
354 if (unit >= 0) {
355 sprintf(dev->name, "eth%d", unit);
356 netdev_boot_setup_check(dev);
357 }
358
359 err = ewrk3_probe1(dev, dev->base_addr, dev->irq);
360 if (err)
361 goto out;
362 return dev;
363 out:
364 free_netdev(dev);
365 return ERR_PTR(err);
366
367 }
368 #endif
369
370 static int __init ewrk3_probe1(struct net_device *dev, u_long iobase, int irq)
371 {
372 int err;
373
374 dev->base_addr = iobase;
375 dev->irq = irq;
376
377 /* Address PROM pattern */
378 err = isa_probe(dev, iobase);
379 if (err != 0)
380 err = eisa_probe(dev, iobase);
381
382 if (err)
383 return err;
384
385 err = register_netdev(dev);
386 if (err)
387 release_region(dev->base_addr, EWRK3_TOTAL_SIZE);
388
389 return err;
390 }
391
392 static const struct net_device_ops ewrk3_netdev_ops = {
393 .ndo_open = ewrk3_open,
394 .ndo_start_xmit = ewrk3_queue_pkt,
395 .ndo_stop = ewrk3_close,
396 .ndo_set_multicast_list = set_multicast_list,
397 .ndo_do_ioctl = ewrk3_ioctl,
398 .ndo_tx_timeout = ewrk3_timeout,
399 .ndo_change_mtu = eth_change_mtu,
400 .ndo_set_mac_address = eth_mac_addr,
401 .ndo_validate_addr = eth_validate_addr,
402 };
403
404 static int __init
405 ewrk3_hw_init(struct net_device *dev, u_long iobase)
406 {
407 struct ewrk3_private *lp;
408 int i, status = 0;
409 u_long mem_start, shmem_length;
410 u_char cr, cmr, icr, nicsr, lemac, hard_strapped = 0;
411 u_char eeprom_image[EEPROM_MAX], chksum, eisa_cr = 0;
412
413 /*
414 ** Stop the EWRK3. Enable the DBR ROM. Disable interrupts and remote boot.
415 ** This also disables the EISA_ENABLE bit in the EISA Control Register.
416 */
417 if (iobase > 0x400)
418 eisa_cr = inb(EISA_CR);
419 INIT_EWRK3;
420
421 nicsr = inb(EWRK3_CSR);
422
423 icr = inb(EWRK3_ICR);
424 icr &= 0x70;
425 outb(icr, EWRK3_ICR); /* Disable all the IRQs */
426
427 if (nicsr != (CSR_TXD | CSR_RXD))
428 return -ENXIO;
429
430 /* Check that the EEPROM is alive and well and not living on Pluto... */
431 for (chksum = 0, i = 0; i < EEPROM_MAX; i += 2) {
432 union {
433 short val;
434 char c[2];
435 } tmp;
436
437 tmp.val = (short) Read_EEPROM(iobase, (i >> 1));
438 eeprom_image[i] = tmp.c[0];
439 eeprom_image[i + 1] = tmp.c[1];
440 chksum += eeprom_image[i] + eeprom_image[i + 1];
441 }
442
443 if (chksum != 0) { /* Bad EEPROM Data! */
444 printk("%s: Device has a bad on-board EEPROM.\n", dev->name);
445 return -ENXIO;
446 }
447
448 EthwrkSignature(name, eeprom_image);
449 if (*name == '\0')
450 return -ENXIO;
451
452 dev->base_addr = iobase;
453
454 if (iobase > 0x400) {
455 outb(eisa_cr, EISA_CR); /* Rewrite the EISA CR */
456 }
457 lemac = eeprom_image[EEPROM_CHIPVER];
458 cmr = inb(EWRK3_CMR);
459
460 if (((lemac == LeMAC) && ((cmr & CMR_NO_EEPROM) != CMR_NO_EEPROM)) ||
461 ((lemac == LeMAC2) && !(cmr & CMR_HS))) {
462 printk("%s: %s at %#4lx", dev->name, name, iobase);
463 hard_strapped = 1;
464 } else if ((iobase & 0x0fff) == EWRK3_EISA_IO_PORTS) {
465 /* EISA slot address */
466 printk("%s: %s at %#4lx (EISA slot %ld)",
467 dev->name, name, iobase, ((iobase >> 12) & 0x0f));
468 } else { /* ISA port address */
469 printk("%s: %s at %#4lx", dev->name, name, iobase);
470 }
471
472 printk(", h/w address ");
473 if (lemac != LeMAC2)
474 DevicePresent(iobase); /* need after EWRK3_INIT */
475 status = get_hw_addr(dev, eeprom_image, lemac);
476 printk("%pM\n", dev->dev_addr);
477
478 if (status) {
479 printk(" which has an EEPROM CRC error.\n");
480 return -ENXIO;
481 }
482
483 if (lemac == LeMAC2) { /* Special LeMAC2 CMR things */
484 cmr &= ~(CMR_RA | CMR_WB | CMR_LINK | CMR_POLARITY | CMR_0WS);
485 if (eeprom_image[EEPROM_MISC0] & READ_AHEAD)
486 cmr |= CMR_RA;
487 if (eeprom_image[EEPROM_MISC0] & WRITE_BEHIND)
488 cmr |= CMR_WB;
489 if (eeprom_image[EEPROM_NETMAN0] & NETMAN_POL)
490 cmr |= CMR_POLARITY;
491 if (eeprom_image[EEPROM_NETMAN0] & NETMAN_LINK)
492 cmr |= CMR_LINK;
493 if (eeprom_image[EEPROM_MISC0] & _0WS_ENA)
494 cmr |= CMR_0WS;
495 }
496 if (eeprom_image[EEPROM_SETUP] & SETUP_DRAM)
497 cmr |= CMR_DRAM;
498 outb(cmr, EWRK3_CMR);
499
500 cr = inb(EWRK3_CR); /* Set up the Control Register */
501 cr |= eeprom_image[EEPROM_SETUP] & SETUP_APD;
502 if (cr & SETUP_APD)
503 cr |= eeprom_image[EEPROM_SETUP] & SETUP_PS;
504 cr |= eeprom_image[EEPROM_MISC0] & FAST_BUS;
505 cr |= eeprom_image[EEPROM_MISC0] & ENA_16;
506 outb(cr, EWRK3_CR);
507
508 /*
509 ** Determine the base address and window length for the EWRK3
510 ** RAM from the memory base register.
511 */
512 mem_start = inb(EWRK3_MBR);
513 shmem_length = 0;
514 if (mem_start != 0) {
515 if ((mem_start >= 0x0a) && (mem_start <= 0x0f)) {
516 mem_start *= SHMEM_64K;
517 shmem_length = SHMEM_64K;
518 } else if ((mem_start >= 0x14) && (mem_start <= 0x1f)) {
519 mem_start *= SHMEM_32K;
520 shmem_length = SHMEM_32K;
521 } else if ((mem_start >= 0x40) && (mem_start <= 0xff)) {
522 mem_start = mem_start * SHMEM_2K + 0x80000;
523 shmem_length = SHMEM_2K;
524 } else {
525 return -ENXIO;
526 }
527 }
528 /*
529 ** See the top of this source code for comments about
530 ** uncommenting this line.
531 */
532 /* FORCE_2K_MODE; */
533
534 if (hard_strapped) {
535 printk(" is hard strapped.\n");
536 } else if (mem_start) {
537 printk(" has a %dk RAM window", (int) (shmem_length >> 10));
538 printk(" at 0x%.5lx", mem_start);
539 } else {
540 printk(" is in I/O only mode");
541 }
542
543 lp = netdev_priv(dev);
544 lp->shmem_base = mem_start;
545 lp->shmem = ioremap(mem_start, shmem_length);
546 if (!lp->shmem)
547 return -ENOMEM;
548 lp->shmem_length = shmem_length;
549 lp->lemac = lemac;
550 lp->hard_strapped = hard_strapped;
551 lp->led_mask = CR_LED;
552 spin_lock_init(&lp->hw_lock);
553
554 lp->mPage = 64;
555 if (cmr & CMR_DRAM)
556 lp->mPage <<= 1; /* 2 DRAMS on module */
557
558 sprintf(lp->adapter_name, "%s (%s)", name, dev->name);
559
560 lp->irq_mask = ICR_TNEM | ICR_TXDM | ICR_RNEM | ICR_RXDM;
561
562 if (!hard_strapped) {
563 /*
564 ** Enable EWRK3 board interrupts for autoprobing
565 */
566 icr |= ICR_IE; /* Enable interrupts */
567 outb(icr, EWRK3_ICR);
568
569 /* The DMA channel may be passed in on this parameter. */
570 dev->dma = 0;
571
572 /* To auto-IRQ we enable the initialization-done and DMA err,
573 interrupts. For now we will always get a DMA error. */
574 if (dev->irq < 2) {
575 #ifndef MODULE
576 u_char irqnum;
577 unsigned long irq_mask;
578
579
580 irq_mask = probe_irq_on();
581
582 /*
583 ** Trigger a TNE interrupt.
584 */
585 icr |= ICR_TNEM;
586 outb(1, EWRK3_TDQ); /* Write to the TX done queue */
587 outb(icr, EWRK3_ICR); /* Unmask the TXD interrupt */
588
589 irqnum = irq[((icr & IRQ_SEL) >> 4)];
590
591 mdelay(20);
592 dev->irq = probe_irq_off(irq_mask);
593 if ((dev->irq) && (irqnum == dev->irq)) {
594 printk(" and uses IRQ%d.\n", dev->irq);
595 } else {
596 if (!dev->irq) {
597 printk(" and failed to detect IRQ line.\n");
598 } else if ((irqnum == 1) && (lemac == LeMAC2)) {
599 printk(" and an illegal IRQ line detected.\n");
600 } else {
601 printk(", but incorrect IRQ line detected.\n");
602 }
603 iounmap(lp->shmem);
604 return -ENXIO;
605 }
606
607 DISABLE_IRQs; /* Mask all interrupts */
608
609 #endif /* MODULE */
610 } else {
611 printk(" and requires IRQ%d.\n", dev->irq);
612 }
613 }
614
615 if (ewrk3_debug > 1) {
616 printk(version);
617 }
618 /* The EWRK3-specific entries in the device structure. */
619 dev->netdev_ops = &ewrk3_netdev_ops;
620 if (lp->adapter_name[4] == '3')
621 SET_ETHTOOL_OPS(dev, &ethtool_ops_203);
622 else
623 SET_ETHTOOL_OPS(dev, &ethtool_ops);
624 dev->watchdog_timeo = QUEUE_PKT_TIMEOUT;
625
626 dev->mem_start = 0;
627
628 return 0;
629 }
630
631
632 static int ewrk3_open(struct net_device *dev)
633 {
634 struct ewrk3_private *lp = netdev_priv(dev);
635 u_long iobase = dev->base_addr;
636 int status = 0;
637 u_char icr, csr;
638
639 /*
640 ** Stop the TX and RX...
641 */
642 STOP_EWRK3;
643
644 if (!lp->hard_strapped) {
645 if (request_irq(dev->irq, (void *) ewrk3_interrupt, 0, "ewrk3", dev)) {
646 printk("ewrk3_open(): Requested IRQ%d is busy\n", dev->irq);
647 status = -EAGAIN;
648 } else {
649
650 /*
651 ** Re-initialize the EWRK3...
652 */
653 ewrk3_init(dev);
654
655 if (ewrk3_debug > 1) {
656 printk("%s: ewrk3 open with irq %d\n", dev->name, dev->irq);
657 printk(" physical address: %pM\n", dev->dev_addr);
658 if (lp->shmem_length == 0) {
659 printk(" no shared memory, I/O only mode\n");
660 } else {
661 printk(" start of shared memory: 0x%08lx\n", lp->shmem_base);
662 printk(" window length: 0x%04lx\n", lp->shmem_length);
663 }
664 printk(" # of DRAMS: %d\n", ((inb(EWRK3_CMR) & 0x02) ? 2 : 1));
665 printk(" csr: 0x%02x\n", inb(EWRK3_CSR));
666 printk(" cr: 0x%02x\n", inb(EWRK3_CR));
667 printk(" icr: 0x%02x\n", inb(EWRK3_ICR));
668 printk(" cmr: 0x%02x\n", inb(EWRK3_CMR));
669 printk(" fmqc: 0x%02x\n", inb(EWRK3_FMQC));
670 }
671 netif_start_queue(dev);
672 /*
673 ** Unmask EWRK3 board interrupts
674 */
675 icr = inb(EWRK3_ICR);
676 ENABLE_IRQs;
677
678 }
679 } else {
680 printk(KERN_ERR "%s: ewrk3 available for hard strapped set up only.\n", dev->name);
681 printk(KERN_ERR " Run the 'ewrk3setup' utility or remove the hard straps.\n");
682 return -EINVAL;
683 }
684
685 return status;
686 }
687
688 /*
689 ** Initialize the EtherWORKS 3 operating conditions
690 */
691 static void ewrk3_init(struct net_device *dev)
692 {
693 struct ewrk3_private *lp = netdev_priv(dev);
694 u_char csr, page;
695 u_long iobase = dev->base_addr;
696 int i;
697
698 /*
699 ** Enable any multicasts
700 */
701 set_multicast_list(dev);
702
703 /*
704 ** Set hardware MAC address. Address is initialized from the EEPROM
705 ** during startup but may have since been changed by the user.
706 */
707 for (i=0; i<ETH_ALEN; i++)
708 outb(dev->dev_addr[i], EWRK3_PAR0 + i);
709
710 /*
711 ** Clean out any remaining entries in all the queues here
712 */
713 while (inb(EWRK3_TQ));
714 while (inb(EWRK3_TDQ));
715 while (inb(EWRK3_RQ));
716 while (inb(EWRK3_FMQ));
717
718 /*
719 ** Write a clean free memory queue
720 */
721 for (page = 1; page < lp->mPage; page++) { /* Write the free page numbers */
722 outb(page, EWRK3_FMQ); /* to the Free Memory Queue */
723 }
724
725 START_EWRK3; /* Enable the TX and/or RX */
726 }
727
728 /*
729 * Transmit timeout
730 */
731
732 static void ewrk3_timeout(struct net_device *dev)
733 {
734 struct ewrk3_private *lp = netdev_priv(dev);
735 u_char icr, csr;
736 u_long iobase = dev->base_addr;
737
738 if (!lp->hard_strapped)
739 {
740 printk(KERN_WARNING"%s: transmit timed/locked out, status %04x, resetting.\n",
741 dev->name, inb(EWRK3_CSR));
742
743 /*
744 ** Mask all board interrupts
745 */
746 DISABLE_IRQs;
747
748 /*
749 ** Stop the TX and RX...
750 */
751 STOP_EWRK3;
752
753 ewrk3_init(dev);
754
755 /*
756 ** Unmask EWRK3 board interrupts
757 */
758 ENABLE_IRQs;
759
760 dev->trans_start = jiffies;
761 netif_wake_queue(dev);
762 }
763 }
764
765 /*
766 ** Writes a socket buffer to the free page queue
767 */
768 static netdev_tx_t ewrk3_queue_pkt(struct sk_buff *skb, struct net_device *dev)
769 {
770 struct ewrk3_private *lp = netdev_priv(dev);
771 u_long iobase = dev->base_addr;
772 void __iomem *buf = NULL;
773 u_char icr;
774 u_char page;
775
776 spin_lock_irq (&lp->hw_lock);
777 DISABLE_IRQs;
778
779 /* if no resources available, exit, request packet be queued */
780 if (inb (EWRK3_FMQC) == 0) {
781 printk (KERN_WARNING "%s: ewrk3_queue_pkt(): No free resources...\n",
782 dev->name);
783 printk (KERN_WARNING "%s: ewrk3_queue_pkt(): CSR: %02x ICR: %02x FMQC: %02x\n",
784 dev->name, inb (EWRK3_CSR), inb (EWRK3_ICR),
785 inb (EWRK3_FMQC));
786 goto err_out;
787 }
788
789 /*
790 ** Get a free page from the FMQ
791 */
792 if ((page = inb (EWRK3_FMQ)) >= lp->mPage) {
793 printk ("ewrk3_queue_pkt(): Invalid free memory page (%d).\n",
794 (u_char) page);
795 goto err_out;
796 }
797
798
799 /*
800 ** Set up shared memory window and pointer into the window
801 */
802 if (lp->shmem_length == IO_ONLY) {
803 outb (page, EWRK3_IOPR);
804 } else if (lp->shmem_length == SHMEM_2K) {
805 buf = lp->shmem;
806 outb (page, EWRK3_MPR);
807 } else if (lp->shmem_length == SHMEM_32K) {
808 buf = (((short) page << 11) & 0x7800) + lp->shmem;
809 outb ((page >> 4), EWRK3_MPR);
810 } else if (lp->shmem_length == SHMEM_64K) {
811 buf = (((short) page << 11) & 0xf800) + lp->shmem;
812 outb ((page >> 5), EWRK3_MPR);
813 } else {
814 printk (KERN_ERR "%s: Oops - your private data area is hosed!\n",
815 dev->name);
816 BUG ();
817 }
818
819 /*
820 ** Set up the buffer control structures and copy the data from
821 ** the socket buffer to the shared memory .
822 */
823 if (lp->shmem_length == IO_ONLY) {
824 int i;
825 u_char *p = skb->data;
826 outb ((char) (TCR_QMODE | TCR_PAD | TCR_IFC), EWRK3_DATA);
827 outb ((char) (skb->len & 0xff), EWRK3_DATA);
828 outb ((char) ((skb->len >> 8) & 0xff), EWRK3_DATA);
829 outb ((char) 0x04, EWRK3_DATA);
830 for (i = 0; i < skb->len; i++) {
831 outb (*p++, EWRK3_DATA);
832 }
833 outb (page, EWRK3_TQ); /* Start sending pkt */
834 } else {
835 writeb ((char) (TCR_QMODE | TCR_PAD | TCR_IFC), buf); /* ctrl byte */
836 buf += 1;
837 writeb ((char) (skb->len & 0xff), buf); /* length (16 bit xfer) */
838 buf += 1;
839 if (lp->txc) {
840 writeb(((skb->len >> 8) & 0xff) | XCT, buf);
841 buf += 1;
842 writeb (0x04, buf); /* index byte */
843 buf += 1;
844 writeb (0x00, (buf + skb->len)); /* Write the XCT flag */
845 memcpy_toio (buf, skb->data, PRELOAD); /* Write PRELOAD bytes */
846 outb (page, EWRK3_TQ); /* Start sending pkt */
847 memcpy_toio (buf + PRELOAD,
848 skb->data + PRELOAD,
849 skb->len - PRELOAD);
850 writeb (0xff, (buf + skb->len)); /* Write the XCT flag */
851 } else {
852 writeb ((skb->len >> 8) & 0xff, buf);
853 buf += 1;
854 writeb (0x04, buf); /* index byte */
855 buf += 1;
856 memcpy_toio (buf, skb->data, skb->len); /* Write data bytes */
857 outb (page, EWRK3_TQ); /* Start sending pkt */
858 }
859 }
860
861 ENABLE_IRQs;
862 spin_unlock_irq (&lp->hw_lock);
863
864 dev->stats.tx_bytes += skb->len;
865 dev->trans_start = jiffies;
866 dev_kfree_skb (skb);
867
868 /* Check for free resources: stop Tx queue if there are none */
869 if (inb (EWRK3_FMQC) == 0)
870 netif_stop_queue (dev);
871
872 return NETDEV_TX_OK;
873
874 err_out:
875 ENABLE_IRQs;
876 spin_unlock_irq (&lp->hw_lock);
877 return NETDEV_TX_BUSY;
878 }
879
880 /*
881 ** The EWRK3 interrupt handler.
882 */
883 static irqreturn_t ewrk3_interrupt(int irq, void *dev_id)
884 {
885 struct net_device *dev = dev_id;
886 struct ewrk3_private *lp;
887 u_long iobase;
888 u_char icr, cr, csr;
889
890 lp = netdev_priv(dev);
891 iobase = dev->base_addr;
892
893 /* get the interrupt information */
894 csr = inb(EWRK3_CSR);
895
896 /*
897 ** Mask the EWRK3 board interrupts and turn on the LED
898 */
899 spin_lock(&lp->hw_lock);
900 DISABLE_IRQs;
901
902 cr = inb(EWRK3_CR);
903 cr |= lp->led_mask;
904 outb(cr, EWRK3_CR);
905
906 if (csr & CSR_RNE) /* Rx interrupt (packet[s] arrived) */
907 ewrk3_rx(dev);
908
909 if (csr & CSR_TNE) /* Tx interrupt (packet sent) */
910 ewrk3_tx(dev);
911
912 /*
913 ** Now deal with the TX/RX disable flags. These are set when there
914 ** are no more resources. If resources free up then enable these
915 ** interrupts, otherwise mask them - failure to do this will result
916 ** in the system hanging in an interrupt loop.
917 */
918 if (inb(EWRK3_FMQC)) { /* any resources available? */
919 lp->irq_mask |= ICR_TXDM | ICR_RXDM; /* enable the interrupt source */
920 csr &= ~(CSR_TXD | CSR_RXD); /* ensure restart of a stalled TX or RX */
921 outb(csr, EWRK3_CSR);
922 netif_wake_queue(dev);
923 } else {
924 lp->irq_mask &= ~(ICR_TXDM | ICR_RXDM); /* disable the interrupt source */
925 }
926
927 /* Unmask the EWRK3 board interrupts and turn off the LED */
928 cr &= ~(lp->led_mask);
929 outb(cr, EWRK3_CR);
930 ENABLE_IRQs;
931 spin_unlock(&lp->hw_lock);
932 return IRQ_HANDLED;
933 }
934
935 /* Called with lp->hw_lock held */
936 static int ewrk3_rx(struct net_device *dev)
937 {
938 struct ewrk3_private *lp = netdev_priv(dev);
939 u_long iobase = dev->base_addr;
940 int i, status = 0;
941 u_char page;
942 void __iomem *buf = NULL;
943
944 while (inb(EWRK3_RQC) && !status) { /* Whilst there's incoming data */
945 if ((page = inb(EWRK3_RQ)) < lp->mPage) { /* Get next entry's buffer page */
946 /*
947 ** Set up shared memory window and pointer into the window
948 */
949 if (lp->shmem_length == IO_ONLY) {
950 outb(page, EWRK3_IOPR);
951 } else if (lp->shmem_length == SHMEM_2K) {
952 buf = lp->shmem;
953 outb(page, EWRK3_MPR);
954 } else if (lp->shmem_length == SHMEM_32K) {
955 buf = (((short) page << 11) & 0x7800) + lp->shmem;
956 outb((page >> 4), EWRK3_MPR);
957 } else if (lp->shmem_length == SHMEM_64K) {
958 buf = (((short) page << 11) & 0xf800) + lp->shmem;
959 outb((page >> 5), EWRK3_MPR);
960 } else {
961 status = -1;
962 printk("%s: Oops - your private data area is hosed!\n", dev->name);
963 }
964
965 if (!status) {
966 char rx_status;
967 int pkt_len;
968
969 if (lp->shmem_length == IO_ONLY) {
970 rx_status = inb(EWRK3_DATA);
971 pkt_len = inb(EWRK3_DATA);
972 pkt_len |= ((u_short) inb(EWRK3_DATA) << 8);
973 } else {
974 rx_status = readb(buf);
975 buf += 1;
976 pkt_len = readw(buf);
977 buf += 3;
978 }
979
980 if (!(rx_status & R_ROK)) { /* There was an error. */
981 dev->stats.rx_errors++; /* Update the error stats. */
982 if (rx_status & R_DBE)
983 dev->stats.rx_frame_errors++;
984 if (rx_status & R_CRC)
985 dev->stats.rx_crc_errors++;
986 if (rx_status & R_PLL)
987 dev->stats.rx_fifo_errors++;
988 } else {
989 struct sk_buff *skb;
990
991 if ((skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
992 unsigned char *p;
993 skb_reserve(skb, 2); /* Align to 16 bytes */
994 p = skb_put(skb, pkt_len);
995
996 if (lp->shmem_length == IO_ONLY) {
997 *p = inb(EWRK3_DATA); /* dummy read */
998 for (i = 0; i < pkt_len; i++) {
999 *p++ = inb(EWRK3_DATA);
1000 }
1001 } else {
1002 memcpy_fromio(p, buf, pkt_len);
1003 }
1004
1005 for (i = 1; i < EWRK3_PKT_STAT_SZ - 1; i++) {
1006 if (pkt_len < i * EWRK3_PKT_BIN_SZ) {
1007 lp->pktStats.bins[i]++;
1008 i = EWRK3_PKT_STAT_SZ;
1009 }
1010 }
1011 p = skb->data; /* Look at the dest addr */
1012 if (p[0] & 0x01) { /* Multicast/Broadcast */
1013 if ((*(s16 *) & p[0] == -1) && (*(s16 *) & p[2] == -1) && (*(s16 *) & p[4] == -1)) {
1014 lp->pktStats.broadcast++;
1015 } else {
1016 lp->pktStats.multicast++;
1017 }
1018 } else if ((*(s16 *) & p[0] == *(s16 *) & dev->dev_addr[0]) &&
1019 (*(s16 *) & p[2] == *(s16 *) & dev->dev_addr[2]) &&
1020 (*(s16 *) & p[4] == *(s16 *) & dev->dev_addr[4])) {
1021 lp->pktStats.unicast++;
1022 }
1023 lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */
1024 if (lp->pktStats.bins[0] == 0) { /* Reset counters */
1025 memset(&lp->pktStats, 0, sizeof(lp->pktStats));
1026 }
1027 /*
1028 ** Notify the upper protocol layers that there is another
1029 ** packet to handle
1030 */
1031 skb->protocol = eth_type_trans(skb, dev);
1032 netif_rx(skb);
1033
1034 /*
1035 ** Update stats
1036 */
1037 dev->stats.rx_packets++;
1038 dev->stats.rx_bytes += pkt_len;
1039 } else {
1040 printk("%s: Insufficient memory; nuking packet.\n", dev->name);
1041 dev->stats.rx_dropped++; /* Really, deferred. */
1042 break;
1043 }
1044 }
1045 }
1046 /*
1047 ** Return the received buffer to the free memory queue
1048 */
1049 outb(page, EWRK3_FMQ);
1050 } else {
1051 printk("ewrk3_rx(): Illegal page number, page %d\n", page);
1052 printk("ewrk3_rx(): CSR: %02x ICR: %02x FMQC: %02x\n", inb(EWRK3_CSR), inb(EWRK3_ICR), inb(EWRK3_FMQC));
1053 }
1054 }
1055 return status;
1056 }
1057
1058 /*
1059 ** Buffer sent - check for TX buffer errors.
1060 ** Called with lp->hw_lock held
1061 */
1062 static int ewrk3_tx(struct net_device *dev)
1063 {
1064 struct ewrk3_private *lp = netdev_priv(dev);
1065 u_long iobase = dev->base_addr;
1066 u_char tx_status;
1067
1068 while ((tx_status = inb(EWRK3_TDQ)) > 0) { /* Whilst there's old buffers */
1069 if (tx_status & T_VSTS) { /* The status is valid */
1070 if (tx_status & T_TXE) {
1071 dev->stats.tx_errors++;
1072 if (tx_status & T_NCL)
1073 dev->stats.tx_carrier_errors++;
1074 if (tx_status & T_LCL)
1075 dev->stats.tx_window_errors++;
1076 if (tx_status & T_CTU) {
1077 if ((tx_status & T_COLL) ^ T_XUR) {
1078 lp->pktStats.tx_underruns++;
1079 } else {
1080 lp->pktStats.excessive_underruns++;
1081 }
1082 } else if (tx_status & T_COLL) {
1083 if ((tx_status & T_COLL) ^ T_XCOLL) {
1084 dev->stats.collisions++;
1085 } else {
1086 lp->pktStats.excessive_collisions++;
1087 }
1088 }
1089 } else {
1090 dev->stats.tx_packets++;
1091 }
1092 }
1093 }
1094
1095 return 0;
1096 }
1097
1098 static int ewrk3_close(struct net_device *dev)
1099 {
1100 struct ewrk3_private *lp = netdev_priv(dev);
1101 u_long iobase = dev->base_addr;
1102 u_char icr, csr;
1103
1104 netif_stop_queue(dev);
1105
1106 if (ewrk3_debug > 1) {
1107 printk("%s: Shutting down ethercard, status was %2.2x.\n",
1108 dev->name, inb(EWRK3_CSR));
1109 }
1110 /*
1111 ** We stop the EWRK3 here... mask interrupts and stop TX & RX
1112 */
1113 DISABLE_IRQs;
1114
1115 STOP_EWRK3;
1116
1117 /*
1118 ** Clean out the TX and RX queues here (note that one entry
1119 ** may get added to either the TXD or RX queues if the TX or RX
1120 ** just starts processing a packet before the STOP_EWRK3 command
1121 ** is received. This will be flushed in the ewrk3_open() call).
1122 */
1123 while (inb(EWRK3_TQ));
1124 while (inb(EWRK3_TDQ));
1125 while (inb(EWRK3_RQ));
1126
1127 if (!lp->hard_strapped) {
1128 free_irq(dev->irq, dev);
1129 }
1130 return 0;
1131 }
1132
1133 /*
1134 ** Set or clear the multicast filter for this adapter.
1135 */
1136 static void set_multicast_list(struct net_device *dev)
1137 {
1138 struct ewrk3_private *lp = netdev_priv(dev);
1139 u_long iobase = dev->base_addr;
1140 u_char csr;
1141
1142 csr = inb(EWRK3_CSR);
1143
1144 if (lp->shmem_length == IO_ONLY) {
1145 lp->mctbl = NULL;
1146 } else {
1147 lp->mctbl = lp->shmem + PAGE0_HTE;
1148 }
1149
1150 csr &= ~(CSR_PME | CSR_MCE);
1151 if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
1152 csr |= CSR_PME;
1153 outb(csr, EWRK3_CSR);
1154 } else {
1155 SetMulticastFilter(dev);
1156 csr |= CSR_MCE;
1157 outb(csr, EWRK3_CSR);
1158 }
1159 }
1160
1161 /*
1162 ** Calculate the hash code and update the logical address filter
1163 ** from a list of ethernet multicast addresses.
1164 ** Little endian crc one liner from Matt Thomas, DEC.
1165 **
1166 ** Note that when clearing the table, the broadcast bit must remain asserted
1167 ** to receive broadcast messages.
1168 */
1169 static void SetMulticastFilter(struct net_device *dev)
1170 {
1171 struct ewrk3_private *lp = netdev_priv(dev);
1172 struct dev_mc_list *dmi;
1173 u_long iobase = dev->base_addr;
1174 int i;
1175 char *addrs, bit, byte;
1176 short __iomem *p = lp->mctbl;
1177 u16 hashcode;
1178 u32 crc;
1179
1180 spin_lock_irq(&lp->hw_lock);
1181
1182 if (lp->shmem_length == IO_ONLY) {
1183 outb(0, EWRK3_IOPR);
1184 outw(PAGE0_HTE, EWRK3_PIR1);
1185 } else {
1186 outb(0, EWRK3_MPR);
1187 }
1188
1189 if (dev->flags & IFF_ALLMULTI) {
1190 for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) {
1191 if (lp->shmem_length == IO_ONLY) {
1192 outb(0xff, EWRK3_DATA);
1193 } else { /* memset didn't work here */
1194 writew(0xffff, p);
1195 p++;
1196 i++;
1197 }
1198 }
1199 } else {
1200 /* Clear table except for broadcast bit */
1201 if (lp->shmem_length == IO_ONLY) {
1202 for (i = 0; i < (HASH_TABLE_LEN >> 4) - 1; i++) {
1203 outb(0x00, EWRK3_DATA);
1204 }
1205 outb(0x80, EWRK3_DATA);
1206 i++; /* insert the broadcast bit */
1207 for (; i < (HASH_TABLE_LEN >> 3); i++) {
1208 outb(0x00, EWRK3_DATA);
1209 }
1210 } else {
1211 memset_io(lp->mctbl, 0, HASH_TABLE_LEN >> 3);
1212 writeb(0x80, lp->mctbl + (HASH_TABLE_LEN >> 4) - 1);
1213 }
1214
1215 /* Update table */
1216 netdev_for_each_mc_addr(dmi, dev) {
1217 addrs = dmi->dmi_addr;
1218 if ((*addrs & 0x01) == 1) { /* multicast address? */
1219 crc = ether_crc_le(ETH_ALEN, addrs);
1220 hashcode = crc & ((1 << 9) - 1); /* hashcode is 9 LSb of CRC */
1221
1222 byte = hashcode >> 3; /* bit[3-8] -> byte in filter */
1223 bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */
1224
1225 if (lp->shmem_length == IO_ONLY) {
1226 u_char tmp;
1227
1228 outw(PAGE0_HTE + byte, EWRK3_PIR1);
1229 tmp = inb(EWRK3_DATA);
1230 tmp |= bit;
1231 outw(PAGE0_HTE + byte, EWRK3_PIR1);
1232 outb(tmp, EWRK3_DATA);
1233 } else {
1234 writeb(readb(lp->mctbl + byte) | bit, lp->mctbl + byte);
1235 }
1236 }
1237 }
1238 }
1239
1240 spin_unlock_irq(&lp->hw_lock);
1241 }
1242
1243 /*
1244 ** ISA bus I/O device probe
1245 */
1246 static int __init isa_probe(struct net_device *dev, u_long ioaddr)
1247 {
1248 int i = num_ewrks3s, maxSlots;
1249 int ret = -ENODEV;
1250
1251 u_long iobase;
1252
1253 if (ioaddr >= 0x400)
1254 goto out;
1255
1256 if (ioaddr == 0) { /* Autoprobing */
1257 iobase = EWRK3_IO_BASE; /* Get the first slot address */
1258 maxSlots = 24;
1259 } else { /* Probe a specific location */
1260 iobase = ioaddr;
1261 maxSlots = i + 1;
1262 }
1263
1264 for (; (i < maxSlots) && (dev != NULL);
1265 iobase += EWRK3_IOP_INC, i++)
1266 {
1267 if (request_region(iobase, EWRK3_TOTAL_SIZE, DRV_NAME)) {
1268 if (DevicePresent(iobase) == 0) {
1269 int irq = dev->irq;
1270 ret = ewrk3_hw_init(dev, iobase);
1271 if (!ret)
1272 break;
1273 dev->irq = irq;
1274 }
1275 release_region(iobase, EWRK3_TOTAL_SIZE);
1276 }
1277 }
1278 out:
1279
1280 return ret;
1281 }
1282
1283 /*
1284 ** EISA bus I/O device probe. Probe from slot 1 since slot 0 is usually
1285 ** the motherboard.
1286 */
1287 static int __init eisa_probe(struct net_device *dev, u_long ioaddr)
1288 {
1289 int i, maxSlots;
1290 u_long iobase;
1291 int ret = -ENODEV;
1292
1293 if (ioaddr < 0x1000)
1294 goto out;
1295
1296 iobase = ioaddr;
1297 i = (ioaddr >> 12);
1298 maxSlots = i + 1;
1299
1300 for (i = 1; (i < maxSlots) && (dev != NULL); i++, iobase += EISA_SLOT_INC) {
1301 if (EISA_signature(name, EISA_ID) == 0) {
1302 if (request_region(iobase, EWRK3_TOTAL_SIZE, DRV_NAME) &&
1303 DevicePresent(iobase) == 0) {
1304 int irq = dev->irq;
1305 ret = ewrk3_hw_init(dev, iobase);
1306 if (!ret)
1307 break;
1308 dev->irq = irq;
1309 }
1310 release_region(iobase, EWRK3_TOTAL_SIZE);
1311 }
1312 }
1313
1314 out:
1315 return ret;
1316 }
1317
1318
1319 /*
1320 ** Read the EWRK3 EEPROM using this routine
1321 */
1322 static int Read_EEPROM(u_long iobase, u_char eaddr)
1323 {
1324 int i;
1325
1326 outb((eaddr & 0x3f), EWRK3_PIR1); /* set up 6 bits of address info */
1327 outb(EEPROM_RD, EWRK3_IOPR); /* issue read command */
1328 for (i = 0; i < 5000; i++)
1329 inb(EWRK3_CSR); /* wait 1msec */
1330
1331 return inw(EWRK3_EPROM1); /* 16 bits data return */
1332 }
1333
1334 /*
1335 ** Write the EWRK3 EEPROM using this routine
1336 */
1337 static int Write_EEPROM(short data, u_long iobase, u_char eaddr)
1338 {
1339 int i;
1340
1341 outb(EEPROM_WR_EN, EWRK3_IOPR); /* issue write enable command */
1342 for (i = 0; i < 5000; i++)
1343 inb(EWRK3_CSR); /* wait 1msec */
1344 outw(data, EWRK3_EPROM1); /* write data to register */
1345 outb((eaddr & 0x3f), EWRK3_PIR1); /* set up 6 bits of address info */
1346 outb(EEPROM_WR, EWRK3_IOPR); /* issue write command */
1347 for (i = 0; i < 75000; i++)
1348 inb(EWRK3_CSR); /* wait 15msec */
1349 outb(EEPROM_WR_DIS, EWRK3_IOPR); /* issue write disable command */
1350 for (i = 0; i < 5000; i++)
1351 inb(EWRK3_CSR); /* wait 1msec */
1352
1353 return 0;
1354 }
1355
1356 /*
1357 ** Look for a particular board name in the on-board EEPROM.
1358 */
1359 static void __init EthwrkSignature(char *name, char *eeprom_image)
1360 {
1361 int i;
1362 char *signatures[] = EWRK3_SIGNATURE;
1363
1364 for (i=0; *signatures[i] != '\0'; i++)
1365 if( !strncmp(eeprom_image+EEPROM_PNAME7, signatures[i], strlen(signatures[i])) )
1366 break;
1367
1368 if (*signatures[i] != '\0') {
1369 memcpy(name, eeprom_image+EEPROM_PNAME7, EWRK3_STRLEN);
1370 name[EWRK3_STRLEN] = '\0';
1371 } else
1372 name[0] = '\0';
1373
1374 return;
1375 }
1376
1377 /*
1378 ** Look for a special sequence in the Ethernet station address PROM that
1379 ** is common across all EWRK3 products.
1380 **
1381 ** Search the Ethernet address ROM for the signature. Since the ROM address
1382 ** counter can start at an arbitrary point, the search must include the entire
1383 ** probe sequence length plus the (length_of_the_signature - 1).
1384 ** Stop the search IMMEDIATELY after the signature is found so that the
1385 ** PROM address counter is correctly positioned at the start of the
1386 ** ethernet address for later read out.
1387 */
1388
1389 static int __init DevicePresent(u_long iobase)
1390 {
1391 union {
1392 struct {
1393 u32 a;
1394 u32 b;
1395 } llsig;
1396 char Sig[sizeof(u32) << 1];
1397 }
1398 dev;
1399 short sigLength;
1400 char data;
1401 int i, j, status = 0;
1402
1403 dev.llsig.a = ETH_PROM_SIG;
1404 dev.llsig.b = ETH_PROM_SIG;
1405 sigLength = sizeof(u32) << 1;
1406
1407 for (i = 0, j = 0; j < sigLength && i < PROBE_LENGTH + sigLength - 1; i++) {
1408 data = inb(EWRK3_APROM);
1409 if (dev.Sig[j] == data) { /* track signature */
1410 j++;
1411 } else { /* lost signature; begin search again */
1412 if (data == dev.Sig[0]) {
1413 j = 1;
1414 } else {
1415 j = 0;
1416 }
1417 }
1418 }
1419
1420 if (j != sigLength) {
1421 status = -ENODEV; /* search failed */
1422 }
1423 return status;
1424 }
1425
1426 static u_char __init get_hw_addr(struct net_device *dev, u_char * eeprom_image, char chipType)
1427 {
1428 int i, j, k;
1429 u_short chksum;
1430 u_char crc, lfsr, sd, status = 0;
1431 u_long iobase = dev->base_addr;
1432 u16 tmp;
1433
1434 if (chipType == LeMAC2) {
1435 for (crc = 0x6a, j = 0; j < ETH_ALEN; j++) {
1436 sd = dev->dev_addr[j] = eeprom_image[EEPROM_PADDR0 + j];
1437 outb(dev->dev_addr[j], EWRK3_PAR0 + j);
1438 for (k = 0; k < 8; k++, sd >>= 1) {
1439 lfsr = ((((crc & 0x02) >> 1) ^ (crc & 0x01)) ^ (sd & 0x01)) << 7;
1440 crc = (crc >> 1) + lfsr;
1441 }
1442 }
1443 if (crc != eeprom_image[EEPROM_PA_CRC])
1444 status = -1;
1445 } else {
1446 for (i = 0, k = 0; i < ETH_ALEN;) {
1447 k <<= 1;
1448 if (k > 0xffff)
1449 k -= 0xffff;
1450
1451 k += (u_char) (tmp = inb(EWRK3_APROM));
1452 dev->dev_addr[i] = (u_char) tmp;
1453 outb(dev->dev_addr[i], EWRK3_PAR0 + i);
1454 i++;
1455 k += (u_short) ((tmp = inb(EWRK3_APROM)) << 8);
1456 dev->dev_addr[i] = (u_char) tmp;
1457 outb(dev->dev_addr[i], EWRK3_PAR0 + i);
1458 i++;
1459
1460 if (k > 0xffff)
1461 k -= 0xffff;
1462 }
1463 if (k == 0xffff)
1464 k = 0;
1465 chksum = inb(EWRK3_APROM);
1466 chksum |= (inb(EWRK3_APROM) << 8);
1467 if (k != chksum)
1468 status = -1;
1469 }
1470
1471 return status;
1472 }
1473
1474 /*
1475 ** Look for a particular board name in the EISA configuration space
1476 */
1477 static int __init EISA_signature(char *name, s32 eisa_id)
1478 {
1479 u_long i;
1480 char *signatures[] = EWRK3_SIGNATURE;
1481 char ManCode[EWRK3_STRLEN];
1482 union {
1483 s32 ID;
1484 char Id[4];
1485 } Eisa;
1486 int status = 0;
1487
1488 *name = '\0';
1489 for (i = 0; i < 4; i++) {
1490 Eisa.Id[i] = inb(eisa_id + i);
1491 }
1492
1493 ManCode[0] = (((Eisa.Id[0] >> 2) & 0x1f) + 0x40);
1494 ManCode[1] = (((Eisa.Id[1] & 0xe0) >> 5) + ((Eisa.Id[0] & 0x03) << 3) + 0x40);
1495 ManCode[2] = (((Eisa.Id[2] >> 4) & 0x0f) + 0x30);
1496 ManCode[3] = ((Eisa.Id[2] & 0x0f) + 0x30);
1497 ManCode[4] = (((Eisa.Id[3] >> 4) & 0x0f) + 0x30);
1498 ManCode[5] = '\0';
1499
1500 for (i = 0; (*signatures[i] != '\0') && (*name == '\0'); i++) {
1501 if (strstr(ManCode, signatures[i]) != NULL) {
1502 strcpy(name, ManCode);
1503 status = 1;
1504 }
1505 }
1506
1507 return status; /* return the device name string */
1508 }
1509
1510 static void ewrk3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1511 {
1512 int fwrev = Read_EEPROM(dev->base_addr, EEPROM_REVLVL);
1513
1514 strcpy(info->driver, DRV_NAME);
1515 strcpy(info->version, DRV_VERSION);
1516 sprintf(info->fw_version, "%d", fwrev);
1517 strcpy(info->bus_info, "N/A");
1518 info->eedump_len = EEPROM_MAX;
1519 }
1520
1521 static int ewrk3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1522 {
1523 struct ewrk3_private *lp = netdev_priv(dev);
1524 unsigned long iobase = dev->base_addr;
1525 u8 cr = inb(EWRK3_CR);
1526
1527 switch (lp->adapter_name[4]) {
1528 case '3': /* DE203 */
1529 ecmd->supported = SUPPORTED_BNC;
1530 ecmd->port = PORT_BNC;
1531 break;
1532
1533 case '4': /* DE204 */
1534 ecmd->supported = SUPPORTED_TP;
1535 ecmd->port = PORT_TP;
1536 break;
1537
1538 case '5': /* DE205 */
1539 ecmd->supported = SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_AUI;
1540 ecmd->autoneg = !(cr & CR_APD);
1541 /*
1542 ** Port is only valid if autoneg is disabled
1543 ** and even then we don't know if AUI is jumpered.
1544 */
1545 if (!ecmd->autoneg)
1546 ecmd->port = (cr & CR_PSEL) ? PORT_BNC : PORT_TP;
1547 break;
1548 }
1549
1550 ecmd->supported |= SUPPORTED_10baseT_Half;
1551 ecmd->speed = SPEED_10;
1552 ecmd->duplex = DUPLEX_HALF;
1553 return 0;
1554 }
1555
1556 static int ewrk3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1557 {
1558 struct ewrk3_private *lp = netdev_priv(dev);
1559 unsigned long iobase = dev->base_addr;
1560 unsigned long flags;
1561 u8 cr;
1562
1563 /* DE205 is the only card with anything to set */
1564 if (lp->adapter_name[4] != '5')
1565 return -EOPNOTSUPP;
1566
1567 /* Sanity-check parameters */
1568 if (ecmd->speed != SPEED_10)
1569 return -EINVAL;
1570 if (ecmd->port != PORT_TP && ecmd->port != PORT_BNC)
1571 return -EINVAL; /* AUI is not software-selectable */
1572 if (ecmd->transceiver != XCVR_INTERNAL)
1573 return -EINVAL;
1574 if (ecmd->duplex != DUPLEX_HALF)
1575 return -EINVAL;
1576 if (ecmd->phy_address != 0)
1577 return -EINVAL;
1578
1579 spin_lock_irqsave(&lp->hw_lock, flags);
1580 cr = inb(EWRK3_CR);
1581
1582 /* If Autoneg is set, change to Auto Port mode */
1583 /* Otherwise, disable Auto Port and set port explicitly */
1584 if (ecmd->autoneg) {
1585 cr &= ~CR_APD;
1586 } else {
1587 cr |= CR_APD;
1588 if (ecmd->port == PORT_TP)
1589 cr &= ~CR_PSEL; /* Force TP */
1590 else
1591 cr |= CR_PSEL; /* Force BNC */
1592 }
1593
1594 /* Commit the changes */
1595 outb(cr, EWRK3_CR);
1596 spin_unlock_irqrestore(&lp->hw_lock, flags);
1597 return 0;
1598 }
1599
1600 static u32 ewrk3_get_link(struct net_device *dev)
1601 {
1602 unsigned long iobase = dev->base_addr;
1603 u8 cmr = inb(EWRK3_CMR);
1604 /* DE203 has BNC only and link status does not apply */
1605 /* On DE204 this is always valid since TP is the only port. */
1606 /* On DE205 this reflects TP status even if BNC or AUI is selected. */
1607 return !(cmr & CMR_LINK);
1608 }
1609
1610 static int ewrk3_phys_id(struct net_device *dev, u32 data)
1611 {
1612 struct ewrk3_private *lp = netdev_priv(dev);
1613 unsigned long iobase = dev->base_addr;
1614 unsigned long flags;
1615 u8 cr;
1616 int count;
1617
1618 /* Toggle LED 4x per second */
1619 count = data << 2;
1620
1621 spin_lock_irqsave(&lp->hw_lock, flags);
1622
1623 /* Bail if a PHYS_ID is already in progress */
1624 if (lp->led_mask == 0) {
1625 spin_unlock_irqrestore(&lp->hw_lock, flags);
1626 return -EBUSY;
1627 }
1628
1629 /* Prevent ISR from twiddling the LED */
1630 lp->led_mask = 0;
1631
1632 while (count--) {
1633 /* Toggle the LED */
1634 cr = inb(EWRK3_CR);
1635 outb(cr ^ CR_LED, EWRK3_CR);
1636
1637 /* Wait a little while */
1638 spin_unlock_irqrestore(&lp->hw_lock, flags);
1639 msleep(250);
1640 spin_lock_irqsave(&lp->hw_lock, flags);
1641
1642 /* Exit if we got a signal */
1643 if (signal_pending(current))
1644 break;
1645 }
1646
1647 lp->led_mask = CR_LED;
1648 cr = inb(EWRK3_CR);
1649 outb(cr & ~CR_LED, EWRK3_CR);
1650 spin_unlock_irqrestore(&lp->hw_lock, flags);
1651 return signal_pending(current) ? -ERESTARTSYS : 0;
1652 }
1653
1654 static const struct ethtool_ops ethtool_ops_203 = {
1655 .get_drvinfo = ewrk3_get_drvinfo,
1656 .get_settings = ewrk3_get_settings,
1657 .set_settings = ewrk3_set_settings,
1658 .phys_id = ewrk3_phys_id,
1659 };
1660
1661 static const struct ethtool_ops ethtool_ops = {
1662 .get_drvinfo = ewrk3_get_drvinfo,
1663 .get_settings = ewrk3_get_settings,
1664 .set_settings = ewrk3_set_settings,
1665 .get_link = ewrk3_get_link,
1666 .phys_id = ewrk3_phys_id,
1667 };
1668
1669 /*
1670 ** Perform IOCTL call functions here. Some are privileged operations and the
1671 ** effective uid is checked in those cases.
1672 */
1673 static int ewrk3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1674 {
1675 struct ewrk3_private *lp = netdev_priv(dev);
1676 struct ewrk3_ioctl *ioc = (struct ewrk3_ioctl *) &rq->ifr_ifru;
1677 u_long iobase = dev->base_addr;
1678 int i, j, status = 0;
1679 u_char csr;
1680 unsigned long flags;
1681 union ewrk3_addr {
1682 u_char addr[HASH_TABLE_LEN * ETH_ALEN];
1683 u_short val[(HASH_TABLE_LEN * ETH_ALEN) >> 1];
1684 };
1685
1686 union ewrk3_addr *tmp;
1687
1688 /* All we handle are private IOCTLs */
1689 if (cmd != EWRK3IOCTL)
1690 return -EOPNOTSUPP;
1691
1692 tmp = kmalloc(sizeof(union ewrk3_addr), GFP_KERNEL);
1693 if(tmp==NULL)
1694 return -ENOMEM;
1695
1696 switch (ioc->cmd) {
1697 case EWRK3_GET_HWADDR: /* Get the hardware address */
1698 for (i = 0; i < ETH_ALEN; i++) {
1699 tmp->addr[i] = dev->dev_addr[i];
1700 }
1701 ioc->len = ETH_ALEN;
1702 if (copy_to_user(ioc->data, tmp->addr, ioc->len))
1703 status = -EFAULT;
1704 break;
1705
1706 case EWRK3_SET_HWADDR: /* Set the hardware address */
1707 if (capable(CAP_NET_ADMIN)) {
1708 spin_lock_irqsave(&lp->hw_lock, flags);
1709 csr = inb(EWRK3_CSR);
1710 csr |= (CSR_TXD | CSR_RXD);
1711 outb(csr, EWRK3_CSR); /* Disable the TX and RX */
1712 spin_unlock_irqrestore(&lp->hw_lock, flags);
1713
1714 if (copy_from_user(tmp->addr, ioc->data, ETH_ALEN)) {
1715 status = -EFAULT;
1716 break;
1717 }
1718 spin_lock_irqsave(&lp->hw_lock, flags);
1719 for (i = 0; i < ETH_ALEN; i++) {
1720 dev->dev_addr[i] = tmp->addr[i];
1721 outb(tmp->addr[i], EWRK3_PAR0 + i);
1722 }
1723
1724 csr = inb(EWRK3_CSR);
1725 csr &= ~(CSR_TXD | CSR_RXD); /* Enable the TX and RX */
1726 outb(csr, EWRK3_CSR);
1727 spin_unlock_irqrestore(&lp->hw_lock, flags);
1728 } else {
1729 status = -EPERM;
1730 }
1731
1732 break;
1733 case EWRK3_SET_PROM: /* Set Promiscuous Mode */
1734 if (capable(CAP_NET_ADMIN)) {
1735 spin_lock_irqsave(&lp->hw_lock, flags);
1736 csr = inb(EWRK3_CSR);
1737 csr |= CSR_PME;
1738 csr &= ~CSR_MCE;
1739 outb(csr, EWRK3_CSR);
1740 spin_unlock_irqrestore(&lp->hw_lock, flags);
1741 } else {
1742 status = -EPERM;
1743 }
1744
1745 break;
1746 case EWRK3_CLR_PROM: /* Clear Promiscuous Mode */
1747 if (capable(CAP_NET_ADMIN)) {
1748 spin_lock_irqsave(&lp->hw_lock, flags);
1749 csr = inb(EWRK3_CSR);
1750 csr &= ~CSR_PME;
1751 outb(csr, EWRK3_CSR);
1752 spin_unlock_irqrestore(&lp->hw_lock, flags);
1753 } else {
1754 status = -EPERM;
1755 }
1756
1757 break;
1758 case EWRK3_GET_MCA: /* Get the multicast address table */
1759 spin_lock_irqsave(&lp->hw_lock, flags);
1760 if (lp->shmem_length == IO_ONLY) {
1761 outb(0, EWRK3_IOPR);
1762 outw(PAGE0_HTE, EWRK3_PIR1);
1763 for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) {
1764 tmp->addr[i] = inb(EWRK3_DATA);
1765 }
1766 } else {
1767 outb(0, EWRK3_MPR);
1768 memcpy_fromio(tmp->addr, lp->shmem + PAGE0_HTE, (HASH_TABLE_LEN >> 3));
1769 }
1770 spin_unlock_irqrestore(&lp->hw_lock, flags);
1771
1772 ioc->len = (HASH_TABLE_LEN >> 3);
1773 if (copy_to_user(ioc->data, tmp->addr, ioc->len))
1774 status = -EFAULT;
1775
1776 break;
1777 case EWRK3_SET_MCA: /* Set a multicast address */
1778 if (capable(CAP_NET_ADMIN)) {
1779 if (ioc->len > 1024)
1780 {
1781 status = -EINVAL;
1782 break;
1783 }
1784 if (copy_from_user(tmp->addr, ioc->data, ETH_ALEN * ioc->len)) {
1785 status = -EFAULT;
1786 break;
1787 }
1788 set_multicast_list(dev);
1789 } else {
1790 status = -EPERM;
1791 }
1792
1793 break;
1794 case EWRK3_CLR_MCA: /* Clear all multicast addresses */
1795 if (capable(CAP_NET_ADMIN)) {
1796 set_multicast_list(dev);
1797 } else {
1798 status = -EPERM;
1799 }
1800
1801 break;
1802 case EWRK3_MCA_EN: /* Enable multicast addressing */
1803 if (capable(CAP_NET_ADMIN)) {
1804 spin_lock_irqsave(&lp->hw_lock, flags);
1805 csr = inb(EWRK3_CSR);
1806 csr |= CSR_MCE;
1807 csr &= ~CSR_PME;
1808 outb(csr, EWRK3_CSR);
1809 spin_unlock_irqrestore(&lp->hw_lock, flags);
1810 } else {
1811 status = -EPERM;
1812 }
1813
1814 break;
1815 case EWRK3_GET_STATS: { /* Get the driver statistics */
1816 struct ewrk3_stats *tmp_stats =
1817 kmalloc(sizeof(lp->pktStats), GFP_KERNEL);
1818 if (!tmp_stats) {
1819 status = -ENOMEM;
1820 break;
1821 }
1822
1823 spin_lock_irqsave(&lp->hw_lock, flags);
1824 memcpy(tmp_stats, &lp->pktStats, sizeof(lp->pktStats));
1825 spin_unlock_irqrestore(&lp->hw_lock, flags);
1826
1827 ioc->len = sizeof(lp->pktStats);
1828 if (copy_to_user(ioc->data, tmp_stats, sizeof(lp->pktStats)))
1829 status = -EFAULT;
1830 kfree(tmp_stats);
1831 break;
1832 }
1833 case EWRK3_CLR_STATS: /* Zero out the driver statistics */
1834 if (capable(CAP_NET_ADMIN)) {
1835 spin_lock_irqsave(&lp->hw_lock, flags);
1836 memset(&lp->pktStats, 0, sizeof(lp->pktStats));
1837 spin_unlock_irqrestore(&lp->hw_lock,flags);
1838 } else {
1839 status = -EPERM;
1840 }
1841
1842 break;
1843 case EWRK3_GET_CSR: /* Get the CSR Register contents */
1844 tmp->addr[0] = inb(EWRK3_CSR);
1845 ioc->len = 1;
1846 if (copy_to_user(ioc->data, tmp->addr, ioc->len))
1847 status = -EFAULT;
1848 break;
1849 case EWRK3_SET_CSR: /* Set the CSR Register contents */
1850 if (capable(CAP_NET_ADMIN)) {
1851 if (copy_from_user(tmp->addr, ioc->data, 1)) {
1852 status = -EFAULT;
1853 break;
1854 }
1855 outb(tmp->addr[0], EWRK3_CSR);
1856 } else {
1857 status = -EPERM;
1858 }
1859
1860 break;
1861 case EWRK3_GET_EEPROM: /* Get the EEPROM contents */
1862 if (capable(CAP_NET_ADMIN)) {
1863 for (i = 0; i < (EEPROM_MAX >> 1); i++) {
1864 tmp->val[i] = (short) Read_EEPROM(iobase, i);
1865 }
1866 i = EEPROM_MAX;
1867 tmp->addr[i++] = inb(EWRK3_CMR); /* Config/Management Reg. */
1868 for (j = 0; j < ETH_ALEN; j++) {
1869 tmp->addr[i++] = inb(EWRK3_PAR0 + j);
1870 }
1871 ioc->len = EEPROM_MAX + 1 + ETH_ALEN;
1872 if (copy_to_user(ioc->data, tmp->addr, ioc->len))
1873 status = -EFAULT;
1874 } else {
1875 status = -EPERM;
1876 }
1877
1878 break;
1879 case EWRK3_SET_EEPROM: /* Set the EEPROM contents */
1880 if (capable(CAP_NET_ADMIN)) {
1881 if (copy_from_user(tmp->addr, ioc->data, EEPROM_MAX)) {
1882 status = -EFAULT;
1883 break;
1884 }
1885 for (i = 0; i < (EEPROM_MAX >> 1); i++) {
1886 Write_EEPROM(tmp->val[i], iobase, i);
1887 }
1888 } else {
1889 status = -EPERM;
1890 }
1891
1892 break;
1893 case EWRK3_GET_CMR: /* Get the CMR Register contents */
1894 tmp->addr[0] = inb(EWRK3_CMR);
1895 ioc->len = 1;
1896 if (copy_to_user(ioc->data, tmp->addr, ioc->len))
1897 status = -EFAULT;
1898 break;
1899 case EWRK3_SET_TX_CUT_THRU: /* Set TX cut through mode */
1900 if (capable(CAP_NET_ADMIN)) {
1901 lp->txc = 1;
1902 } else {
1903 status = -EPERM;
1904 }
1905
1906 break;
1907 case EWRK3_CLR_TX_CUT_THRU: /* Clear TX cut through mode */
1908 if (capable(CAP_NET_ADMIN)) {
1909 lp->txc = 0;
1910 } else {
1911 status = -EPERM;
1912 }
1913
1914 break;
1915 default:
1916 status = -EOPNOTSUPP;
1917 }
1918 kfree(tmp);
1919 return status;
1920 }
1921
1922 #ifdef MODULE
1923 static struct net_device *ewrk3_devs[MAX_NUM_EWRK3S];
1924 static int ndevs;
1925 static int io[MAX_NUM_EWRK3S+1] = { 0x300, 0, };
1926
1927 /* '21' below should really be 'MAX_NUM_EWRK3S' */
1928 module_param_array(io, int, NULL, 0);
1929 module_param_array(irq, int, NULL, 0);
1930 MODULE_PARM_DESC(io, "EtherWORKS 3 I/O base address(es)");
1931 MODULE_PARM_DESC(irq, "EtherWORKS 3 IRQ number(s)");
1932
1933 static __exit void ewrk3_exit_module(void)
1934 {
1935 int i;
1936
1937 for( i=0; i<ndevs; i++ ) {
1938 struct net_device *dev = ewrk3_devs[i];
1939 struct ewrk3_private *lp = netdev_priv(dev);
1940 ewrk3_devs[i] = NULL;
1941 unregister_netdev(dev);
1942 release_region(dev->base_addr, EWRK3_TOTAL_SIZE);
1943 iounmap(lp->shmem);
1944 free_netdev(dev);
1945 }
1946 }
1947
1948 static __init int ewrk3_init_module(void)
1949 {
1950 int i=0;
1951
1952 while( io[i] && irq[i] ) {
1953 struct net_device *dev
1954 = alloc_etherdev(sizeof(struct ewrk3_private));
1955
1956 if (!dev)
1957 break;
1958
1959 if (ewrk3_probe1(dev, io[i], irq[i]) != 0) {
1960 free_netdev(dev);
1961 break;
1962 }
1963
1964 ewrk3_devs[ndevs++] = dev;
1965 i++;
1966 }
1967
1968 return ndevs ? 0 : -EIO;
1969 }
1970
1971
1972 /* Hack for breakage in new module stuff */
1973 module_exit(ewrk3_exit_module);
1974 module_init(ewrk3_init_module);
1975 #endif /* MODULE */
1976 MODULE_LICENSE("GPL");
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