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1da177e4 LT |
1 | /* |
2 | * lanstreamer.c -- driver for the IBM Auto LANStreamer PCI Adapter | |
3 | * | |
4 | * Written By: Mike Sullivan, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 1999 IBM Corporation | |
7 | * | |
8 | * Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC | |
9 | * chipset. | |
10 | * | |
11 | * This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic | |
12 | * chipsets) written by: | |
13 | * 1999 Peter De Schrijver All Rights Reserved | |
14 | * 1999 Mike Phillips (phillim@amtrak.com) | |
15 | * | |
16 | * Base Driver Skeleton: | |
17 | * Written 1993-94 by Donald Becker. | |
18 | * | |
19 | * Copyright 1993 United States Government as represented by the | |
20 | * Director, National Security Agency. | |
21 | * | |
22 | * This program is free software; you can redistribute it and/or modify | |
23 | * it under the terms of the GNU General Public License as published by | |
24 | * the Free Software Foundation; either version 2 of the License, or | |
25 | * (at your option) any later version. | |
26 | * | |
27 | * This program is distributed in the hope that it will be useful, | |
28 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
30 | * GNU General Public License for more details. | |
31 | * | |
32 | * NO WARRANTY | |
33 | * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR | |
34 | * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT | |
35 | * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, | |
36 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is | |
37 | * solely responsible for determining the appropriateness of using and | |
38 | * distributing the Program and assumes all risks associated with its | |
39 | * exercise of rights under this Agreement, including but not limited to | |
40 | * the risks and costs of program errors, damage to or loss of data, | |
41 | * programs or equipment, and unavailability or interruption of operations. | |
42 | * | |
43 | * DISCLAIMER OF LIABILITY | |
44 | * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY | |
45 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND | |
47 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
48 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
49 | * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED | |
50 | * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES | |
51 | * | |
52 | * You should have received a copy of the GNU General Public License | |
53 | * along with this program; if not, write to the Free Software | |
54 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
55 | * | |
56 | * | |
57 | * 12/10/99 - Alpha Release 0.1.0 | |
58 | * First release to the public | |
59 | * 03/03/00 - Merged to kernel, indented -kr -i8 -bri0, fixed some missing | |
60 | * malloc free checks, reviewed code. <alan@redhat.com> | |
61 | * 03/13/00 - Added spinlocks for smp | |
62 | * 03/08/01 - Added support for module_init() and module_exit() | |
63 | * 08/15/01 - Added ioctl() functionality for debugging, changed netif_*_queue | |
64 | * calls and other incorrectness - Kent Yoder <yoder1@us.ibm.com> | |
65 | * 11/05/01 - Restructured the interrupt function, added delays, reduced the | |
66 | * the number of TX descriptors to 1, which together can prevent | |
67 | * the card from locking up the box - <yoder1@us.ibm.com> | |
68 | * 09/27/02 - New PCI interface + bug fix. - <yoder1@us.ibm.com> | |
69 | * 11/13/02 - Removed free_irq calls which could cause a hang, added | |
70 | * netif_carrier_{on|off} - <yoder1@us.ibm.com> | |
71 | * | |
72 | * To Do: | |
73 | * | |
74 | * | |
75 | * If Problems do Occur | |
76 | * Most problems can be rectified by either closing and opening the interface | |
77 | * (ifconfig down and up) or rmmod and insmod'ing the driver (a bit difficult | |
78 | * if compiled into the kernel). | |
79 | */ | |
80 | ||
81 | /* Change STREAMER_DEBUG to 1 to get verbose, and I mean really verbose, messages */ | |
82 | ||
83 | #define STREAMER_DEBUG 0 | |
84 | #define STREAMER_DEBUG_PACKETS 0 | |
85 | ||
86 | /* Change STREAMER_NETWORK_MONITOR to receive mac frames through the arb channel. | |
87 | * Will also create a /proc/net/streamer_tr entry if proc_fs is compiled into the | |
88 | * kernel. | |
89 | * Intended to be used to create a ring-error reporting network module | |
90 | * i.e. it will give you the source address of beaconers on the ring | |
91 | */ | |
92 | ||
93 | #define STREAMER_NETWORK_MONITOR 0 | |
94 | ||
95 | /* #define CONFIG_PROC_FS */ | |
96 | ||
97 | /* | |
98 | * Allow or disallow ioctl's for debugging | |
99 | */ | |
100 | ||
101 | #define STREAMER_IOCTL 0 | |
102 | ||
103 | #include <linux/config.h> | |
104 | #include <linux/module.h> | |
105 | #include <linux/kernel.h> | |
106 | #include <linux/errno.h> | |
107 | #include <linux/timer.h> | |
108 | #include <linux/in.h> | |
109 | #include <linux/ioport.h> | |
110 | #include <linux/string.h> | |
111 | #include <linux/proc_fs.h> | |
112 | #include <linux/ptrace.h> | |
113 | #include <linux/skbuff.h> | |
114 | #include <linux/interrupt.h> | |
115 | #include <linux/delay.h> | |
116 | #include <linux/netdevice.h> | |
117 | #include <linux/trdevice.h> | |
118 | #include <linux/stddef.h> | |
119 | #include <linux/init.h> | |
120 | #include <linux/pci.h> | |
121 | #include <linux/spinlock.h> | |
122 | #include <linux/version.h> | |
123 | #include <linux/bitops.h> | |
124 | ||
125 | #include <net/checksum.h> | |
126 | ||
127 | #include <asm/io.h> | |
128 | #include <asm/system.h> | |
129 | ||
130 | #include "lanstreamer.h" | |
131 | ||
132 | #if (BITS_PER_LONG == 64) | |
133 | #error broken on 64-bit: stores pointer to rx_ring->buffer in 32-bit int | |
134 | #endif | |
135 | ||
136 | ||
137 | /* I've got to put some intelligence into the version number so that Peter and I know | |
138 | * which version of the code somebody has got. | |
139 | * Version Number = a.b.c.d where a.b.c is the level of code and d is the latest author. | |
140 | * So 0.0.1.pds = Peter, 0.0.1.mlp = Mike | |
141 | * | |
142 | * Official releases will only have an a.b.c version number format. | |
143 | */ | |
144 | ||
145 | static char version[] = "LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan\n" | |
146 | " v0.5.3 11/13/02 - Kent Yoder"; | |
147 | ||
148 | static struct pci_device_id streamer_pci_tbl[] = { | |
149 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_TR, PCI_ANY_ID, PCI_ANY_ID,}, | |
150 | {} /* terminating entry */ | |
151 | }; | |
152 | MODULE_DEVICE_TABLE(pci,streamer_pci_tbl); | |
153 | ||
154 | ||
155 | static char *open_maj_error[] = { | |
156 | "No error", "Lobe Media Test", "Physical Insertion", | |
157 | "Address Verification", "Neighbor Notification (Ring Poll)", | |
158 | "Request Parameters", "FDX Registration Request", | |
159 | "FDX Lobe Media Test", "FDX Duplicate Address Check", | |
160 | "Unknown stage" | |
161 | }; | |
162 | ||
163 | static char *open_min_error[] = { | |
164 | "No error", "Function Failure", "Signal Lost", "Wire Fault", | |
165 | "Ring Speed Mismatch", "Timeout", "Ring Failure", "Ring Beaconing", | |
166 | "Duplicate Node Address", "Request Parameters", "Remove Received", | |
167 | "Reserved", "Reserved", "No Monitor Detected for RPL", | |
168 | "Monitor Contention failer for RPL", "FDX Protocol Error" | |
169 | }; | |
170 | ||
171 | /* Module paramters */ | |
172 | ||
173 | /* Ring Speed 0,4,16 | |
174 | * 0 = Autosense | |
175 | * 4,16 = Selected speed only, no autosense | |
176 | * This allows the card to be the first on the ring | |
177 | * and become the active monitor. | |
178 | * | |
179 | * WARNING: Some hubs will allow you to insert | |
180 | * at the wrong speed | |
181 | */ | |
182 | ||
183 | static int ringspeed[STREAMER_MAX_ADAPTERS] = { 0, }; | |
184 | ||
185 | module_param_array(ringspeed, int, NULL, 0); | |
186 | ||
187 | /* Packet buffer size */ | |
188 | ||
189 | static int pkt_buf_sz[STREAMER_MAX_ADAPTERS] = { 0, }; | |
190 | ||
191 | module_param_array(pkt_buf_sz, int, NULL, 0); | |
192 | ||
193 | /* Message Level */ | |
194 | ||
195 | static int message_level[STREAMER_MAX_ADAPTERS] = { 1, }; | |
196 | ||
197 | module_param_array(message_level, int, NULL, 0); | |
198 | ||
199 | #if STREAMER_IOCTL | |
200 | static int streamer_ioctl(struct net_device *, struct ifreq *, int); | |
201 | #endif | |
202 | ||
203 | static int streamer_reset(struct net_device *dev); | |
204 | static int streamer_open(struct net_device *dev); | |
205 | static int streamer_xmit(struct sk_buff *skb, struct net_device *dev); | |
206 | static int streamer_close(struct net_device *dev); | |
207 | static void streamer_set_rx_mode(struct net_device *dev); | |
208 | static irqreturn_t streamer_interrupt(int irq, void *dev_id, | |
209 | struct pt_regs *regs); | |
210 | static struct net_device_stats *streamer_get_stats(struct net_device *dev); | |
211 | static int streamer_set_mac_address(struct net_device *dev, void *addr); | |
212 | static void streamer_arb_cmd(struct net_device *dev); | |
213 | static int streamer_change_mtu(struct net_device *dev, int mtu); | |
214 | static void streamer_srb_bh(struct net_device *dev); | |
215 | static void streamer_asb_bh(struct net_device *dev); | |
216 | #if STREAMER_NETWORK_MONITOR | |
217 | #ifdef CONFIG_PROC_FS | |
218 | static int streamer_proc_info(char *buffer, char **start, off_t offset, | |
219 | int length, int *eof, void *data); | |
220 | static int sprintf_info(char *buffer, struct net_device *dev); | |
221 | struct streamer_private *dev_streamer=NULL; | |
222 | #endif | |
223 | #endif | |
224 | ||
225 | static int __devinit streamer_init_one(struct pci_dev *pdev, | |
226 | const struct pci_device_id *ent) | |
227 | { | |
228 | struct net_device *dev; | |
229 | struct streamer_private *streamer_priv; | |
230 | unsigned long pio_start, pio_end, pio_flags, pio_len; | |
231 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; | |
232 | int rc = 0; | |
233 | static int card_no=-1; | |
234 | u16 pcr; | |
235 | ||
236 | #if STREAMER_DEBUG | |
237 | printk("lanstreamer::streamer_init_one, entry pdev %p\n",pdev); | |
238 | #endif | |
239 | ||
240 | card_no++; | |
241 | dev = alloc_trdev(sizeof(*streamer_priv)); | |
242 | if (dev==NULL) { | |
243 | printk(KERN_ERR "lanstreamer: out of memory.\n"); | |
244 | return -ENOMEM; | |
245 | } | |
246 | ||
247 | SET_MODULE_OWNER(dev); | |
248 | streamer_priv = dev->priv; | |
249 | ||
250 | #if STREAMER_NETWORK_MONITOR | |
251 | #ifdef CONFIG_PROC_FS | |
252 | if (!dev_streamer) | |
253 | create_proc_read_entry("net/streamer_tr", 0, 0, | |
254 | streamer_proc_info, NULL); | |
255 | streamer_priv->next = dev_streamer; | |
256 | dev_streamer = streamer_priv; | |
257 | #endif | |
258 | #endif | |
259 | ||
260 | rc = pci_set_dma_mask(pdev, 0xFFFFFFFFULL); | |
261 | if (rc) { | |
262 | printk(KERN_ERR "%s: No suitable PCI mapping available.\n", | |
263 | dev->name); | |
264 | rc = -ENODEV; | |
265 | goto err_out; | |
266 | } | |
267 | ||
268 | rc = pci_enable_device(pdev); | |
269 | if (rc) { | |
270 | printk(KERN_ERR "lanstreamer: unable to enable pci device\n"); | |
271 | rc=-EIO; | |
272 | goto err_out; | |
273 | } | |
274 | ||
275 | pci_set_master(pdev); | |
276 | ||
277 | rc = pci_set_mwi(pdev); | |
278 | if (rc) { | |
279 | printk(KERN_ERR "lanstreamer: unable to enable MWI on pci device\n"); | |
280 | goto err_out_disable; | |
281 | } | |
282 | ||
283 | pio_start = pci_resource_start(pdev, 0); | |
284 | pio_end = pci_resource_end(pdev, 0); | |
285 | pio_flags = pci_resource_flags(pdev, 0); | |
286 | pio_len = pci_resource_len(pdev, 0); | |
287 | ||
288 | mmio_start = pci_resource_start(pdev, 1); | |
289 | mmio_end = pci_resource_end(pdev, 1); | |
290 | mmio_flags = pci_resource_flags(pdev, 1); | |
291 | mmio_len = pci_resource_len(pdev, 1); | |
292 | ||
293 | #if STREAMER_DEBUG | |
294 | printk("lanstreamer: pio_start %x pio_end %x pio_len %x pio_flags %x\n", | |
295 | pio_start, pio_end, pio_len, pio_flags); | |
296 | printk("lanstreamer: mmio_start %x mmio_end %x mmio_len %x mmio_flags %x\n", | |
297 | mmio_start, mmio_end, mmio_flags, mmio_len); | |
298 | #endif | |
299 | ||
300 | if (!request_region(pio_start, pio_len, "lanstreamer")) { | |
301 | printk(KERN_ERR "lanstreamer: unable to get pci io addr %lx\n", | |
302 | pio_start); | |
303 | rc= -EBUSY; | |
304 | goto err_out_mwi; | |
305 | } | |
306 | ||
307 | if (!request_mem_region(mmio_start, mmio_len, "lanstreamer")) { | |
308 | printk(KERN_ERR "lanstreamer: unable to get pci mmio addr %lx\n", | |
309 | mmio_start); | |
310 | rc= -EBUSY; | |
311 | goto err_out_free_pio; | |
312 | } | |
313 | ||
314 | streamer_priv->streamer_mmio=ioremap(mmio_start, mmio_len); | |
315 | if (streamer_priv->streamer_mmio == NULL) { | |
316 | printk(KERN_ERR "lanstreamer: unable to remap MMIO %lx\n", | |
317 | mmio_start); | |
318 | rc= -EIO; | |
319 | goto err_out_free_mmio; | |
320 | } | |
321 | ||
322 | init_waitqueue_head(&streamer_priv->srb_wait); | |
323 | init_waitqueue_head(&streamer_priv->trb_wait); | |
324 | ||
325 | dev->open = &streamer_open; | |
326 | dev->hard_start_xmit = &streamer_xmit; | |
327 | dev->change_mtu = &streamer_change_mtu; | |
328 | dev->stop = &streamer_close; | |
329 | #if STREAMER_IOCTL | |
330 | dev->do_ioctl = &streamer_ioctl; | |
331 | #else | |
332 | dev->do_ioctl = NULL; | |
333 | #endif | |
334 | dev->set_multicast_list = &streamer_set_rx_mode; | |
335 | dev->get_stats = &streamer_get_stats; | |
336 | dev->set_mac_address = &streamer_set_mac_address; | |
337 | dev->irq = pdev->irq; | |
338 | dev->base_addr=pio_start; | |
339 | SET_NETDEV_DEV(dev, &pdev->dev); | |
340 | ||
341 | streamer_priv->streamer_card_name = (char *)pdev->resource[0].name; | |
342 | streamer_priv->pci_dev = pdev; | |
343 | ||
344 | if ((pkt_buf_sz[card_no] < 100) || (pkt_buf_sz[card_no] > 18000)) | |
345 | streamer_priv->pkt_buf_sz = PKT_BUF_SZ; | |
346 | else | |
347 | streamer_priv->pkt_buf_sz = pkt_buf_sz[card_no]; | |
348 | ||
349 | streamer_priv->streamer_ring_speed = ringspeed[card_no]; | |
350 | streamer_priv->streamer_message_level = message_level[card_no]; | |
351 | ||
352 | pci_set_drvdata(pdev, dev); | |
353 | ||
354 | spin_lock_init(&streamer_priv->streamer_lock); | |
355 | ||
356 | pci_read_config_word (pdev, PCI_COMMAND, &pcr); | |
357 | pcr |= PCI_COMMAND_SERR; | |
358 | pci_write_config_word (pdev, PCI_COMMAND, pcr); | |
359 | ||
360 | printk("%s \n", version); | |
361 | printk("%s: %s. I/O at %hx, MMIO at %p, using irq %d\n",dev->name, | |
362 | streamer_priv->streamer_card_name, | |
363 | (unsigned int) dev->base_addr, | |
364 | streamer_priv->streamer_mmio, | |
365 | dev->irq); | |
366 | ||
367 | if (streamer_reset(dev)) | |
368 | goto err_out_unmap; | |
369 | ||
370 | rc = register_netdev(dev); | |
371 | if (rc) | |
372 | goto err_out_unmap; | |
373 | return 0; | |
374 | ||
375 | err_out_unmap: | |
376 | iounmap(streamer_priv->streamer_mmio); | |
377 | err_out_free_mmio: | |
378 | release_mem_region(mmio_start, mmio_len); | |
379 | err_out_free_pio: | |
380 | release_region(pio_start, pio_len); | |
381 | err_out_mwi: | |
382 | pci_clear_mwi(pdev); | |
383 | err_out_disable: | |
384 | pci_disable_device(pdev); | |
385 | err_out: | |
386 | free_netdev(dev); | |
387 | #if STREAMER_DEBUG | |
388 | printk("lanstreamer: Exit error %x\n",rc); | |
389 | #endif | |
390 | return rc; | |
391 | } | |
392 | ||
393 | static void __devexit streamer_remove_one(struct pci_dev *pdev) | |
394 | { | |
395 | struct net_device *dev=pci_get_drvdata(pdev); | |
396 | struct streamer_private *streamer_priv; | |
397 | ||
398 | #if STREAMER_DEBUG | |
399 | printk("lanstreamer::streamer_remove_one entry pdev %p\n",pdev); | |
400 | #endif | |
401 | ||
402 | if (dev == NULL) { | |
403 | printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev is NULL\n"); | |
404 | return; | |
405 | } | |
406 | ||
407 | streamer_priv=dev->priv; | |
408 | if (streamer_priv == NULL) { | |
409 | printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev->priv is NULL\n"); | |
410 | return; | |
411 | } | |
412 | ||
413 | #if STREAMER_NETWORK_MONITOR | |
414 | #ifdef CONFIG_PROC_FS | |
415 | { | |
416 | struct streamer_private **p, **next; | |
417 | ||
418 | for (p = &dev_streamer; *p; p = next) { | |
419 | next = &(*p)->next; | |
420 | if (*p == streamer_priv) { | |
421 | *p = *next; | |
422 | break; | |
423 | } | |
424 | } | |
425 | if (!dev_streamer) | |
426 | remove_proc_entry("net/streamer_tr", NULL); | |
427 | } | |
428 | #endif | |
429 | #endif | |
430 | ||
431 | unregister_netdev(dev); | |
432 | iounmap(streamer_priv->streamer_mmio); | |
433 | release_mem_region(pci_resource_start(pdev, 1), pci_resource_len(pdev,1)); | |
434 | release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev,0)); | |
435 | pci_clear_mwi(pdev); | |
436 | pci_disable_device(pdev); | |
437 | free_netdev(dev); | |
438 | pci_set_drvdata(pdev, NULL); | |
439 | } | |
440 | ||
441 | ||
442 | static int streamer_reset(struct net_device *dev) | |
443 | { | |
444 | struct streamer_private *streamer_priv; | |
445 | __u8 __iomem *streamer_mmio; | |
446 | unsigned long t; | |
447 | unsigned int uaa_addr; | |
448 | struct sk_buff *skb = NULL; | |
449 | __u16 misr; | |
450 | ||
451 | streamer_priv = (struct streamer_private *) dev->priv; | |
452 | streamer_mmio = streamer_priv->streamer_mmio; | |
453 | ||
454 | writew(readw(streamer_mmio + BCTL) | BCTL_SOFTRESET, streamer_mmio + BCTL); | |
455 | t = jiffies; | |
456 | /* Hold soft reset bit for a while */ | |
457 | current->state = TASK_UNINTERRUPTIBLE; | |
458 | schedule_timeout(HZ); | |
459 | ||
460 | writew(readw(streamer_mmio + BCTL) & ~BCTL_SOFTRESET, | |
461 | streamer_mmio + BCTL); | |
462 | ||
463 | #if STREAMER_DEBUG | |
464 | printk("BCTL: %x\n", readw(streamer_mmio + BCTL)); | |
465 | printk("GPR: %x\n", readw(streamer_mmio + GPR)); | |
466 | printk("SISRMASK: %x\n", readw(streamer_mmio + SISR_MASK)); | |
467 | #endif | |
468 | writew(readw(streamer_mmio + BCTL) | (BCTL_RX_FIFO_8 | BCTL_TX_FIFO_8), streamer_mmio + BCTL ); | |
469 | ||
470 | if (streamer_priv->streamer_ring_speed == 0) { /* Autosense */ | |
471 | writew(readw(streamer_mmio + GPR) | GPR_AUTOSENSE, | |
472 | streamer_mmio + GPR); | |
473 | if (streamer_priv->streamer_message_level) | |
474 | printk(KERN_INFO "%s: Ringspeed autosense mode on\n", | |
475 | dev->name); | |
476 | } else if (streamer_priv->streamer_ring_speed == 16) { | |
477 | if (streamer_priv->streamer_message_level) | |
478 | printk(KERN_INFO "%s: Trying to open at 16 Mbps as requested\n", | |
479 | dev->name); | |
480 | writew(GPR_16MBPS, streamer_mmio + GPR); | |
481 | } else if (streamer_priv->streamer_ring_speed == 4) { | |
482 | if (streamer_priv->streamer_message_level) | |
483 | printk(KERN_INFO "%s: Trying to open at 4 Mbps as requested\n", | |
484 | dev->name); | |
485 | writew(0, streamer_mmio + GPR); | |
486 | } | |
487 | ||
488 | skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); | |
489 | if (!skb) { | |
490 | printk(KERN_INFO "%s: skb allocation for diagnostics failed...proceeding\n", | |
491 | dev->name); | |
492 | } else { | |
493 | struct streamer_rx_desc *rx_ring; | |
494 | u8 *data; | |
495 | ||
496 | rx_ring=(struct streamer_rx_desc *)skb->data; | |
497 | data=((u8 *)skb->data)+sizeof(struct streamer_rx_desc); | |
498 | rx_ring->forward=0; | |
499 | rx_ring->status=0; | |
500 | rx_ring->buffer=cpu_to_le32(pci_map_single(streamer_priv->pci_dev, data, | |
501 | 512, PCI_DMA_FROMDEVICE)); | |
502 | rx_ring->framelen_buflen=512; | |
503 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, rx_ring, 512, PCI_DMA_FROMDEVICE)), | |
504 | streamer_mmio+RXBDA); | |
505 | } | |
506 | ||
507 | #if STREAMER_DEBUG | |
508 | printk("GPR = %x\n", readw(streamer_mmio + GPR)); | |
509 | #endif | |
510 | /* start solo init */ | |
511 | writew(SISR_MI, streamer_mmio + SISR_MASK_SUM); | |
512 | ||
513 | while (!((readw(streamer_mmio + SISR)) & SISR_SRB_REPLY)) { | |
514 | current->state = TASK_INTERRUPTIBLE; | |
515 | schedule_timeout(HZ/10); | |
516 | if (jiffies - t > 40 * HZ) { | |
517 | printk(KERN_ERR | |
518 | "IBM PCI tokenring card not responding\n"); | |
519 | release_region(dev->base_addr, STREAMER_IO_SPACE); | |
520 | if (skb) | |
521 | dev_kfree_skb(skb); | |
522 | return -1; | |
523 | } | |
524 | } | |
525 | writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM); | |
526 | misr = readw(streamer_mmio + MISR_RUM); | |
527 | writew(~misr, streamer_mmio + MISR_RUM); | |
528 | ||
529 | if (skb) | |
530 | dev_kfree_skb(skb); /* release skb used for diagnostics */ | |
531 | ||
532 | #if STREAMER_DEBUG | |
533 | printk("LAPWWO: %x, LAPA: %x LAPE: %x\n", | |
534 | readw(streamer_mmio + LAPWWO), readw(streamer_mmio + LAPA), | |
535 | readw(streamer_mmio + LAPE)); | |
536 | #endif | |
537 | ||
538 | #if STREAMER_DEBUG | |
539 | { | |
540 | int i; | |
541 | writew(readw(streamer_mmio + LAPWWO), | |
542 | streamer_mmio + LAPA); | |
543 | printk("initialization response srb dump: "); | |
544 | for (i = 0; i < 10; i++) | |
545 | printk("%x:", | |
546 | ntohs(readw(streamer_mmio + LAPDINC))); | |
547 | printk("\n"); | |
548 | } | |
549 | #endif | |
550 | ||
551 | writew(readw(streamer_mmio + LAPWWO) + 6, streamer_mmio + LAPA); | |
552 | if (readw(streamer_mmio + LAPD)) { | |
553 | printk(KERN_INFO "tokenring card initialization failed. errorcode : %x\n", | |
554 | ntohs(readw(streamer_mmio + LAPD))); | |
555 | release_region(dev->base_addr, STREAMER_IO_SPACE); | |
556 | return -1; | |
557 | } | |
558 | ||
559 | writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA); | |
560 | uaa_addr = ntohs(readw(streamer_mmio + LAPDINC)); | |
561 | readw(streamer_mmio + LAPDINC); /* skip over Level.Addr field */ | |
562 | streamer_priv->streamer_addr_table_addr = ntohs(readw(streamer_mmio + LAPDINC)); | |
563 | streamer_priv->streamer_parms_addr = ntohs(readw(streamer_mmio + LAPDINC)); | |
564 | ||
565 | #if STREAMER_DEBUG | |
566 | printk("UAA resides at %x\n", uaa_addr); | |
567 | #endif | |
568 | ||
569 | /* setup uaa area for access with LAPD */ | |
570 | { | |
571 | int i; | |
572 | __u16 addr; | |
573 | writew(uaa_addr, streamer_mmio + LAPA); | |
574 | for (i = 0; i < 6; i += 2) { | |
575 | addr=ntohs(readw(streamer_mmio+LAPDINC)); | |
576 | dev->dev_addr[i]= (addr >> 8) & 0xff; | |
577 | dev->dev_addr[i+1]= addr & 0xff; | |
578 | } | |
579 | #if STREAMER_DEBUG | |
580 | printk("Adapter address: "); | |
581 | for (i = 0; i < 6; i++) { | |
582 | printk("%02x:", dev->dev_addr[i]); | |
583 | } | |
584 | printk("\n"); | |
585 | #endif | |
586 | } | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static int streamer_open(struct net_device *dev) | |
591 | { | |
592 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
593 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
594 | unsigned long flags; | |
595 | char open_error[255]; | |
596 | int i, open_finished = 1; | |
597 | __u16 srb_word; | |
598 | __u16 srb_open; | |
599 | int rc; | |
600 | ||
601 | if (readw(streamer_mmio+BMCTL_SUM) & BMCTL_RX_ENABLED) { | |
602 | rc=streamer_reset(dev); | |
603 | } | |
604 | ||
605 | if (request_irq(dev->irq, &streamer_interrupt, SA_SHIRQ, "lanstreamer", dev)) { | |
606 | return -EAGAIN; | |
607 | } | |
608 | #if STREAMER_DEBUG | |
609 | printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM)); | |
610 | printk("pending ints: %x\n", readw(streamer_mmio + SISR)); | |
611 | #endif | |
612 | ||
613 | writew(SISR_MI | SISR_SRB_REPLY, streamer_mmio + SISR_MASK); /* more ints later, doesn't stop arb cmd interrupt */ | |
614 | writew(LISR_LIE, streamer_mmio + LISR); /* more ints later */ | |
615 | ||
616 | /* adapter is closed, so SRB is pointed to by LAPWWO */ | |
617 | writew(readw(streamer_mmio + LAPWWO), streamer_mmio + LAPA); | |
618 | ||
619 | #if STREAMER_DEBUG | |
620 | printk("LAPWWO: %x, LAPA: %x\n", readw(streamer_mmio + LAPWWO), | |
621 | readw(streamer_mmio + LAPA)); | |
622 | printk("LAPE: %x\n", readw(streamer_mmio + LAPE)); | |
623 | printk("SISR Mask = %04x\n", readw(streamer_mmio + SISR_MASK)); | |
624 | #endif | |
625 | do { | |
626 | int i; | |
627 | ||
628 | for (i = 0; i < SRB_COMMAND_SIZE; i += 2) { | |
629 | writew(0, streamer_mmio + LAPDINC); | |
630 | } | |
631 | ||
632 | writew(readw(streamer_mmio+LAPWWO),streamer_mmio+LAPA); | |
633 | writew(htons(SRB_OPEN_ADAPTER<<8),streamer_mmio+LAPDINC) ; /* open */ | |
634 | writew(htons(STREAMER_CLEAR_RET_CODE<<8),streamer_mmio+LAPDINC); | |
635 | writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC); | |
636 | ||
637 | writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA); | |
638 | #if STREAMER_NETWORK_MONITOR | |
639 | /* If Network Monitor, instruct card to copy MAC frames through the ARB */ | |
640 | writew(htons(OPEN_ADAPTER_ENABLE_FDX | OPEN_ADAPTER_PASS_ADC_MAC | OPEN_ADAPTER_PASS_ATT_MAC | OPEN_ADAPTER_PASS_BEACON), streamer_mmio + LAPDINC); /* offset 8 word contains open options */ | |
641 | #else | |
642 | writew(htons(OPEN_ADAPTER_ENABLE_FDX), streamer_mmio + LAPDINC); /* Offset 8 word contains Open.Options */ | |
643 | #endif | |
644 | ||
645 | if (streamer_priv->streamer_laa[0]) { | |
646 | writew(readw(streamer_mmio + LAPWWO) + 12, streamer_mmio + LAPA); | |
647 | writew(htons((streamer_priv->streamer_laa[0] << 8) | | |
648 | streamer_priv->streamer_laa[1]),streamer_mmio+LAPDINC); | |
649 | writew(htons((streamer_priv->streamer_laa[2] << 8) | | |
650 | streamer_priv->streamer_laa[3]),streamer_mmio+LAPDINC); | |
651 | writew(htons((streamer_priv->streamer_laa[4] << 8) | | |
652 | streamer_priv->streamer_laa[5]),streamer_mmio+LAPDINC); | |
653 | memcpy(dev->dev_addr, streamer_priv->streamer_laa, dev->addr_len); | |
654 | } | |
655 | ||
656 | /* save off srb open offset */ | |
657 | srb_open = readw(streamer_mmio + LAPWWO); | |
658 | #if STREAMER_DEBUG | |
659 | writew(readw(streamer_mmio + LAPWWO), | |
660 | streamer_mmio + LAPA); | |
661 | printk("srb open request: \n"); | |
662 | for (i = 0; i < 16; i++) { | |
663 | printk("%x:", ntohs(readw(streamer_mmio + LAPDINC))); | |
664 | } | |
665 | printk("\n"); | |
666 | #endif | |
667 | spin_lock_irqsave(&streamer_priv->streamer_lock, flags); | |
668 | streamer_priv->srb_queued = 1; | |
669 | ||
670 | /* signal solo that SRB command has been issued */ | |
671 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
672 | spin_unlock_irqrestore(&streamer_priv->streamer_lock, flags); | |
673 | ||
674 | while (streamer_priv->srb_queued) { | |
675 | interruptible_sleep_on_timeout(&streamer_priv->srb_wait, 5 * HZ); | |
676 | if (signal_pending(current)) { | |
677 | printk(KERN_WARNING "%s: SRB timed out.\n", dev->name); | |
678 | printk(KERN_WARNING "SISR=%x MISR=%x, LISR=%x\n", | |
679 | readw(streamer_mmio + SISR), | |
680 | readw(streamer_mmio + MISR_RUM), | |
681 | readw(streamer_mmio + LISR)); | |
682 | streamer_priv->srb_queued = 0; | |
683 | break; | |
684 | } | |
685 | } | |
686 | ||
687 | #if STREAMER_DEBUG | |
688 | printk("SISR_MASK: %x\n", readw(streamer_mmio + SISR_MASK)); | |
689 | printk("srb open response:\n"); | |
690 | writew(srb_open, streamer_mmio + LAPA); | |
691 | for (i = 0; i < 10; i++) { | |
692 | printk("%x:", | |
693 | ntohs(readw(streamer_mmio + LAPDINC))); | |
694 | } | |
695 | #endif | |
696 | ||
697 | /* If we get the same return response as we set, the interrupt wasn't raised and the open | |
698 | * timed out. | |
699 | */ | |
700 | writew(srb_open + 2, streamer_mmio + LAPA); | |
701 | srb_word = ntohs(readw(streamer_mmio + LAPD)) >> 8; | |
702 | if (srb_word == STREAMER_CLEAR_RET_CODE) { | |
703 | printk(KERN_WARNING "%s: Adapter Open time out or error.\n", | |
704 | dev->name); | |
705 | return -EIO; | |
706 | } | |
707 | ||
708 | if (srb_word != 0) { | |
709 | if (srb_word == 0x07) { | |
710 | if (!streamer_priv->streamer_ring_speed && open_finished) { /* Autosense , first time around */ | |
711 | printk(KERN_WARNING "%s: Retrying at different ring speed \n", | |
712 | dev->name); | |
713 | open_finished = 0; | |
714 | } else { | |
715 | __u16 error_code; | |
716 | ||
717 | writew(srb_open + 6, streamer_mmio + LAPA); | |
718 | error_code = ntohs(readw(streamer_mmio + LAPD)); | |
719 | strcpy(open_error, open_maj_error[(error_code & 0xf0) >> 4]); | |
720 | strcat(open_error, " - "); | |
721 | strcat(open_error, open_min_error[(error_code & 0x0f)]); | |
722 | ||
723 | if (!streamer_priv->streamer_ring_speed | |
724 | && ((error_code & 0x0f) == 0x0d)) | |
725 | { | |
726 | printk(KERN_WARNING "%s: Tried to autosense ring speed with no monitors present\n", dev->name); | |
727 | printk(KERN_WARNING "%s: Please try again with a specified ring speed \n", dev->name); | |
728 | free_irq(dev->irq, dev); | |
729 | return -EIO; | |
730 | } | |
731 | ||
732 | printk(KERN_WARNING "%s: %s\n", | |
733 | dev->name, open_error); | |
734 | free_irq(dev->irq, dev); | |
735 | return -EIO; | |
736 | ||
737 | } /* if autosense && open_finished */ | |
738 | } else { | |
739 | printk(KERN_WARNING "%s: Bad OPEN response: %x\n", | |
740 | dev->name, srb_word); | |
741 | free_irq(dev->irq, dev); | |
742 | return -EIO; | |
743 | } | |
744 | } else | |
745 | open_finished = 1; | |
746 | } while (!(open_finished)); /* Will only loop if ring speed mismatch re-open attempted && autosense is on */ | |
747 | ||
748 | writew(srb_open + 18, streamer_mmio + LAPA); | |
749 | srb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
750 | if (srb_word & (1 << 3)) | |
751 | if (streamer_priv->streamer_message_level) | |
752 | printk(KERN_INFO "%s: Opened in FDX Mode\n", dev->name); | |
753 | ||
754 | if (srb_word & 1) | |
755 | streamer_priv->streamer_ring_speed = 16; | |
756 | else | |
757 | streamer_priv->streamer_ring_speed = 4; | |
758 | ||
759 | if (streamer_priv->streamer_message_level) | |
760 | printk(KERN_INFO "%s: Opened in %d Mbps mode\n", | |
761 | dev->name, | |
762 | streamer_priv->streamer_ring_speed); | |
763 | ||
764 | writew(srb_open + 8, streamer_mmio + LAPA); | |
765 | streamer_priv->asb = ntohs(readw(streamer_mmio + LAPDINC)); | |
766 | streamer_priv->srb = ntohs(readw(streamer_mmio + LAPDINC)); | |
767 | streamer_priv->arb = ntohs(readw(streamer_mmio + LAPDINC)); | |
768 | readw(streamer_mmio + LAPDINC); /* offset 14 word is rsvd */ | |
769 | streamer_priv->trb = ntohs(readw(streamer_mmio + LAPDINC)); | |
770 | ||
771 | streamer_priv->streamer_receive_options = 0x00; | |
772 | streamer_priv->streamer_copy_all_options = 0; | |
773 | ||
774 | /* setup rx ring */ | |
775 | /* enable rx channel */ | |
776 | writew(~BMCTL_RX_DIS, streamer_mmio + BMCTL_RUM); | |
777 | ||
778 | /* setup rx descriptors */ | |
779 | streamer_priv->streamer_rx_ring= | |
780 | kmalloc( sizeof(struct streamer_rx_desc)* | |
781 | STREAMER_RX_RING_SIZE,GFP_KERNEL); | |
782 | if (!streamer_priv->streamer_rx_ring) { | |
783 | printk(KERN_WARNING "%s ALLOC of streamer rx ring FAILED!!\n",dev->name); | |
784 | return -EIO; | |
785 | } | |
786 | ||
787 | for (i = 0; i < STREAMER_RX_RING_SIZE; i++) { | |
788 | struct sk_buff *skb; | |
789 | ||
790 | skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); | |
791 | if (skb == NULL) | |
792 | break; | |
793 | ||
794 | skb->dev = dev; | |
795 | ||
796 | streamer_priv->streamer_rx_ring[i].forward = | |
797 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[i + 1], | |
798 | sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)); | |
799 | streamer_priv->streamer_rx_ring[i].status = 0; | |
800 | streamer_priv->streamer_rx_ring[i].buffer = | |
801 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, | |
802 | streamer_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE)); | |
803 | streamer_priv->streamer_rx_ring[i].framelen_buflen = streamer_priv->pkt_buf_sz; | |
804 | streamer_priv->rx_ring_skb[i] = skb; | |
805 | } | |
806 | streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1].forward = | |
807 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0], | |
808 | sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)); | |
809 | ||
810 | if (i == 0) { | |
811 | printk(KERN_WARNING "%s: Not enough memory to allocate rx buffers. Adapter disabled\n", dev->name); | |
812 | free_irq(dev->irq, dev); | |
813 | return -EIO; | |
814 | } | |
815 | ||
816 | streamer_priv->rx_ring_last_received = STREAMER_RX_RING_SIZE - 1; /* last processed rx status */ | |
817 | ||
818 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0], | |
819 | sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)), | |
820 | streamer_mmio + RXBDA); | |
821 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1], | |
822 | sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)), | |
823 | streamer_mmio + RXLBDA); | |
824 | ||
825 | /* set bus master interrupt event mask */ | |
826 | writew(MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK); | |
827 | ||
828 | ||
829 | /* setup tx ring */ | |
830 | streamer_priv->streamer_tx_ring=kmalloc(sizeof(struct streamer_tx_desc)* | |
831 | STREAMER_TX_RING_SIZE,GFP_KERNEL); | |
832 | if (!streamer_priv->streamer_tx_ring) { | |
833 | printk(KERN_WARNING "%s ALLOC of streamer_tx_ring FAILED\n",dev->name); | |
834 | return -EIO; | |
835 | } | |
836 | ||
837 | writew(~BMCTL_TX2_DIS, streamer_mmio + BMCTL_RUM); /* Enables TX channel 2 */ | |
838 | for (i = 0; i < STREAMER_TX_RING_SIZE; i++) { | |
839 | streamer_priv->streamer_tx_ring[i].forward = cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
840 | &streamer_priv->streamer_tx_ring[i + 1], | |
841 | sizeof(struct streamer_tx_desc), | |
842 | PCI_DMA_TODEVICE)); | |
843 | streamer_priv->streamer_tx_ring[i].status = 0; | |
844 | streamer_priv->streamer_tx_ring[i].bufcnt_framelen = 0; | |
845 | streamer_priv->streamer_tx_ring[i].buffer = 0; | |
846 | streamer_priv->streamer_tx_ring[i].buflen = 0; | |
847 | streamer_priv->streamer_tx_ring[i].rsvd1 = 0; | |
848 | streamer_priv->streamer_tx_ring[i].rsvd2 = 0; | |
849 | streamer_priv->streamer_tx_ring[i].rsvd3 = 0; | |
850 | } | |
851 | streamer_priv->streamer_tx_ring[STREAMER_TX_RING_SIZE - 1].forward = | |
852 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_tx_ring[0], | |
853 | sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE)); | |
854 | ||
855 | streamer_priv->free_tx_ring_entries = STREAMER_TX_RING_SIZE; | |
856 | streamer_priv->tx_ring_free = 0; /* next entry in tx ring to use */ | |
857 | streamer_priv->tx_ring_last_status = STREAMER_TX_RING_SIZE - 1; | |
858 | ||
859 | /* set Busmaster interrupt event mask (handle receives on interrupt only */ | |
860 | writew(MISR_TX2_EOF | MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK); | |
861 | /* set system event interrupt mask */ | |
862 | writew(SISR_ADAPTER_CHECK | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_ASB_FREE, streamer_mmio + SISR_MASK_SUM); | |
863 | ||
864 | #if STREAMER_DEBUG | |
865 | printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM)); | |
866 | printk("SISR MASK: %x\n", readw(streamer_mmio + SISR_MASK)); | |
867 | #endif | |
868 | ||
869 | #if STREAMER_NETWORK_MONITOR | |
870 | ||
871 | writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA); | |
872 | printk("%s: Node Address: %04x:%04x:%04x\n", dev->name, | |
873 | ntohs(readw(streamer_mmio + LAPDINC)), | |
874 | ntohs(readw(streamer_mmio + LAPDINC)), | |
875 | ntohs(readw(streamer_mmio + LAPDINC))); | |
876 | readw(streamer_mmio + LAPDINC); | |
877 | readw(streamer_mmio + LAPDINC); | |
878 | printk("%s: Functional Address: %04x:%04x\n", dev->name, | |
879 | ntohs(readw(streamer_mmio + LAPDINC)), | |
880 | ntohs(readw(streamer_mmio + LAPDINC))); | |
881 | ||
882 | writew(streamer_priv->streamer_parms_addr + 4, | |
883 | streamer_mmio + LAPA); | |
884 | printk("%s: NAUN Address: %04x:%04x:%04x\n", dev->name, | |
885 | ntohs(readw(streamer_mmio + LAPDINC)), | |
886 | ntohs(readw(streamer_mmio + LAPDINC)), | |
887 | ntohs(readw(streamer_mmio + LAPDINC))); | |
888 | #endif | |
889 | ||
890 | netif_start_queue(dev); | |
891 | netif_carrier_on(dev); | |
892 | return 0; | |
893 | } | |
894 | ||
895 | /* | |
896 | * When we enter the rx routine we do not know how many frames have been | |
897 | * queued on the rx channel. Therefore we start at the next rx status | |
898 | * position and travel around the receive ring until we have completed | |
899 | * all the frames. | |
900 | * | |
901 | * This means that we may process the frame before we receive the end | |
902 | * of frame interrupt. This is why we always test the status instead | |
903 | * of blindly processing the next frame. | |
904 | * | |
905 | */ | |
906 | static void streamer_rx(struct net_device *dev) | |
907 | { | |
908 | struct streamer_private *streamer_priv = | |
909 | (struct streamer_private *) dev->priv; | |
910 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
911 | struct streamer_rx_desc *rx_desc; | |
912 | int rx_ring_last_received, length, frame_length, buffer_cnt = 0; | |
913 | struct sk_buff *skb, *skb2; | |
914 | ||
915 | /* setup the next rx descriptor to be received */ | |
916 | rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)]; | |
917 | rx_ring_last_received = streamer_priv->rx_ring_last_received; | |
918 | ||
919 | while (rx_desc->status & 0x01000000) { /* While processed descriptors are available */ | |
920 | if (rx_ring_last_received != streamer_priv->rx_ring_last_received) | |
921 | { | |
922 | printk(KERN_WARNING "RX Error 1 rx_ring_last_received not the same %x %x\n", | |
923 | rx_ring_last_received, streamer_priv->rx_ring_last_received); | |
924 | } | |
925 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); | |
926 | rx_ring_last_received = streamer_priv->rx_ring_last_received; | |
927 | ||
928 | length = rx_desc->framelen_buflen & 0xffff; /* buffer length */ | |
929 | frame_length = (rx_desc->framelen_buflen >> 16) & 0xffff; | |
930 | ||
931 | if (rx_desc->status & 0x7E830000) { /* errors */ | |
932 | if (streamer_priv->streamer_message_level) { | |
933 | printk(KERN_WARNING "%s: Rx Error %x \n", | |
934 | dev->name, rx_desc->status); | |
935 | } | |
936 | } else { /* received without errors */ | |
937 | if (rx_desc->status & 0x80000000) { /* frame complete */ | |
938 | buffer_cnt = 1; | |
939 | skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); | |
940 | } else { | |
941 | skb = dev_alloc_skb(frame_length); | |
942 | } | |
943 | ||
944 | if (skb == NULL) | |
945 | { | |
946 | printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers. \n", dev->name); | |
947 | streamer_priv->streamer_stats.rx_dropped++; | |
948 | } else { /* we allocated an skb OK */ | |
949 | skb->dev = dev; | |
950 | ||
951 | if (buffer_cnt == 1) { | |
952 | /* release the DMA mapping */ | |
953 | pci_unmap_single(streamer_priv->pci_dev, | |
954 | le32_to_cpu(streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer), | |
955 | streamer_priv->pkt_buf_sz, | |
956 | PCI_DMA_FROMDEVICE); | |
957 | skb2 = streamer_priv->rx_ring_skb[rx_ring_last_received]; | |
958 | #if STREAMER_DEBUG_PACKETS | |
959 | { | |
960 | int i; | |
961 | printk("streamer_rx packet print: skb->data2 %p skb->head %p\n", skb2->data, skb2->head); | |
962 | for (i = 0; i < frame_length; i++) | |
963 | { | |
964 | printk("%x:", skb2->data[i]); | |
965 | if (((i + 1) % 16) == 0) | |
966 | printk("\n"); | |
967 | } | |
968 | printk("\n"); | |
969 | } | |
970 | #endif | |
971 | skb_put(skb2, length); | |
972 | skb2->protocol = tr_type_trans(skb2, dev); | |
973 | /* recycle this descriptor */ | |
974 | streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0; | |
975 | streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz; | |
976 | streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer = | |
977 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, streamer_priv->pkt_buf_sz, | |
978 | PCI_DMA_FROMDEVICE)); | |
979 | streamer_priv->rx_ring_skb[rx_ring_last_received] = skb; | |
980 | /* place recycled descriptor back on the adapter */ | |
981 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
982 | &streamer_priv->streamer_rx_ring[rx_ring_last_received], | |
983 | sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)), | |
984 | streamer_mmio + RXLBDA); | |
985 | /* pass the received skb up to the protocol */ | |
986 | netif_rx(skb2); | |
987 | } else { | |
988 | do { /* Walk the buffers */ | |
989 | pci_unmap_single(streamer_priv->pci_dev, le32_to_cpu(rx_desc->buffer), length, PCI_DMA_FROMDEVICE), | |
990 | memcpy(skb_put(skb, length), (void *)rx_desc->buffer, length); /* copy this fragment */ | |
991 | streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0; | |
992 | streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz; | |
993 | ||
994 | /* give descriptor back to the adapter */ | |
995 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
996 | &streamer_priv->streamer_rx_ring[rx_ring_last_received], | |
997 | length, PCI_DMA_FROMDEVICE)), | |
998 | streamer_mmio + RXLBDA); | |
999 | ||
1000 | if (rx_desc->status & 0x80000000) | |
1001 | break; /* this descriptor completes the frame */ | |
1002 | ||
1003 | /* else get the next pending descriptor */ | |
1004 | if (rx_ring_last_received!= streamer_priv->rx_ring_last_received) | |
1005 | { | |
1006 | printk("RX Error rx_ring_last_received not the same %x %x\n", | |
1007 | rx_ring_last_received, | |
1008 | streamer_priv->rx_ring_last_received); | |
1009 | } | |
1010 | rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE-1)]; | |
1011 | ||
1012 | length = rx_desc->framelen_buflen & 0xffff; /* buffer length */ | |
1013 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE - 1); | |
1014 | rx_ring_last_received = streamer_priv->rx_ring_last_received; | |
1015 | } while (1); | |
1016 | ||
1017 | skb->protocol = tr_type_trans(skb, dev); | |
1018 | /* send up to the protocol */ | |
1019 | netif_rx(skb); | |
1020 | } | |
1021 | dev->last_rx = jiffies; | |
1022 | streamer_priv->streamer_stats.rx_packets++; | |
1023 | streamer_priv->streamer_stats.rx_bytes += length; | |
1024 | } /* if skb == null */ | |
1025 | } /* end received without errors */ | |
1026 | ||
1027 | /* try the next one */ | |
1028 | rx_desc = &streamer_priv->streamer_rx_ring[(rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)]; | |
1029 | } /* end for all completed rx descriptors */ | |
1030 | } | |
1031 | ||
1032 | static irqreturn_t streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1033 | { | |
1034 | struct net_device *dev = (struct net_device *) dev_id; | |
1035 | struct streamer_private *streamer_priv = | |
1036 | (struct streamer_private *) dev->priv; | |
1037 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1038 | __u16 sisr; | |
1039 | __u16 misr; | |
1040 | u8 max_intr = MAX_INTR; | |
1041 | ||
1042 | spin_lock(&streamer_priv->streamer_lock); | |
1043 | sisr = readw(streamer_mmio + SISR); | |
1044 | ||
1045 | while((sisr & (SISR_MI | SISR_SRB_REPLY | SISR_ADAPTER_CHECK | SISR_ASB_FREE | | |
1046 | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_PAR_ERR | SISR_SERR_ERR)) | |
1047 | && (max_intr > 0)) { | |
1048 | ||
1049 | if(sisr & SISR_PAR_ERR) { | |
1050 | writew(~SISR_PAR_ERR, streamer_mmio + SISR_RUM); | |
1051 | (void)readw(streamer_mmio + SISR_RUM); | |
1052 | } | |
1053 | ||
1054 | else if(sisr & SISR_SERR_ERR) { | |
1055 | writew(~SISR_SERR_ERR, streamer_mmio + SISR_RUM); | |
1056 | (void)readw(streamer_mmio + SISR_RUM); | |
1057 | } | |
1058 | ||
1059 | else if(sisr & SISR_MI) { | |
1060 | misr = readw(streamer_mmio + MISR_RUM); | |
1061 | ||
1062 | if (misr & MISR_TX2_EOF) { | |
1063 | while(streamer_priv->streamer_tx_ring[(streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1)].status) { | |
1064 | streamer_priv->tx_ring_last_status = (streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1); | |
1065 | streamer_priv->free_tx_ring_entries++; | |
1066 | streamer_priv->streamer_stats.tx_bytes += streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]->len; | |
1067 | streamer_priv->streamer_stats.tx_packets++; | |
1068 | dev_kfree_skb_irq(streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]); | |
1069 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buffer = 0xdeadbeef; | |
1070 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].status = 0; | |
1071 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].bufcnt_framelen = 0; | |
1072 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buflen = 0; | |
1073 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd1 = 0; | |
1074 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd2 = 0; | |
1075 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd3 = 0; | |
1076 | } | |
1077 | netif_wake_queue(dev); | |
1078 | } | |
1079 | ||
1080 | if (misr & MISR_RX_EOF) { | |
1081 | streamer_rx(dev); | |
1082 | } | |
1083 | /* MISR_RX_EOF */ | |
1084 | ||
1085 | if (misr & MISR_RX_NOBUF) { | |
1086 | /* According to the documentation, we don't have to do anything, | |
1087 | * but trapping it keeps it out of /var/log/messages. | |
1088 | */ | |
1089 | } /* SISR_RX_NOBUF */ | |
1090 | ||
1091 | writew(~misr, streamer_mmio + MISR_RUM); | |
1092 | (void)readw(streamer_mmio + MISR_RUM); | |
1093 | } | |
1094 | ||
1095 | else if (sisr & SISR_SRB_REPLY) { | |
1096 | if (streamer_priv->srb_queued == 1) { | |
1097 | wake_up_interruptible(&streamer_priv->srb_wait); | |
1098 | } else if (streamer_priv->srb_queued == 2) { | |
1099 | streamer_srb_bh(dev); | |
1100 | } | |
1101 | streamer_priv->srb_queued = 0; | |
1102 | ||
1103 | writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM); | |
1104 | (void)readw(streamer_mmio + SISR_RUM); | |
1105 | } | |
1106 | ||
1107 | else if (sisr & SISR_ADAPTER_CHECK) { | |
1108 | printk(KERN_WARNING "%s: Adapter Check Interrupt Raised, 8 bytes of information follow:\n", dev->name); | |
1109 | writel(readl(streamer_mmio + LAPWWO), streamer_mmio + LAPA); | |
1110 | printk(KERN_WARNING "%s: Words %x:%x:%x:%x:\n", | |
1111 | dev->name, readw(streamer_mmio + LAPDINC), | |
1112 | ntohs(readw(streamer_mmio + LAPDINC)), | |
1113 | ntohs(readw(streamer_mmio + LAPDINC)), | |
1114 | ntohs(readw(streamer_mmio + LAPDINC))); | |
1115 | netif_stop_queue(dev); | |
1116 | netif_carrier_off(dev); | |
1117 | printk(KERN_WARNING "%s: Adapter must be manually reset.\n", dev->name); | |
1118 | } | |
1119 | ||
1120 | /* SISR_ADAPTER_CHECK */ | |
1121 | else if (sisr & SISR_ASB_FREE) { | |
1122 | /* Wake up anything that is waiting for the asb response */ | |
1123 | if (streamer_priv->asb_queued) { | |
1124 | streamer_asb_bh(dev); | |
1125 | } | |
1126 | writew(~SISR_ASB_FREE, streamer_mmio + SISR_RUM); | |
1127 | (void)readw(streamer_mmio + SISR_RUM); | |
1128 | } | |
1129 | /* SISR_ASB_FREE */ | |
1130 | else if (sisr & SISR_ARB_CMD) { | |
1131 | streamer_arb_cmd(dev); | |
1132 | writew(~SISR_ARB_CMD, streamer_mmio + SISR_RUM); | |
1133 | (void)readw(streamer_mmio + SISR_RUM); | |
1134 | } | |
1135 | /* SISR_ARB_CMD */ | |
1136 | else if (sisr & SISR_TRB_REPLY) { | |
1137 | /* Wake up anything that is waiting for the trb response */ | |
1138 | if (streamer_priv->trb_queued) { | |
1139 | wake_up_interruptible(&streamer_priv-> | |
1140 | trb_wait); | |
1141 | } | |
1142 | streamer_priv->trb_queued = 0; | |
1143 | writew(~SISR_TRB_REPLY, streamer_mmio + SISR_RUM); | |
1144 | (void)readw(streamer_mmio + SISR_RUM); | |
1145 | } | |
1146 | /* SISR_TRB_REPLY */ | |
1147 | ||
1148 | sisr = readw(streamer_mmio + SISR); | |
1149 | max_intr--; | |
1150 | } /* while() */ | |
1151 | ||
1152 | spin_unlock(&streamer_priv->streamer_lock) ; | |
1153 | return IRQ_HANDLED; | |
1154 | } | |
1155 | ||
1156 | static int streamer_xmit(struct sk_buff *skb, struct net_device *dev) | |
1157 | { | |
1158 | struct streamer_private *streamer_priv = | |
1159 | (struct streamer_private *) dev->priv; | |
1160 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1161 | unsigned long flags ; | |
1162 | ||
1163 | spin_lock_irqsave(&streamer_priv->streamer_lock, flags); | |
1164 | ||
1165 | if (streamer_priv->free_tx_ring_entries) { | |
1166 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].status = 0; | |
1167 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].bufcnt_framelen = 0x00020000 | skb->len; | |
1168 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buffer = | |
1169 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE)); | |
1170 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd1 = skb->len; | |
1171 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd2 = 0; | |
1172 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd3 = 0; | |
1173 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buflen = skb->len; | |
1174 | ||
1175 | streamer_priv->tx_ring_skb[streamer_priv->tx_ring_free] = skb; | |
1176 | streamer_priv->free_tx_ring_entries--; | |
1177 | #if STREAMER_DEBUG_PACKETS | |
1178 | { | |
1179 | int i; | |
1180 | printk("streamer_xmit packet print:\n"); | |
1181 | for (i = 0; i < skb->len; i++) { | |
1182 | printk("%x:", skb->data[i]); | |
1183 | if (((i + 1) % 16) == 0) | |
1184 | printk("\n"); | |
1185 | } | |
1186 | printk("\n"); | |
1187 | } | |
1188 | #endif | |
1189 | ||
1190 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
1191 | &streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free], | |
1192 | sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE)), | |
1193 | streamer_mmio + TX2LFDA); | |
1194 | (void)readl(streamer_mmio + TX2LFDA); | |
1195 | ||
1196 | streamer_priv->tx_ring_free = (streamer_priv->tx_ring_free + 1) & (STREAMER_TX_RING_SIZE - 1); | |
1197 | spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags); | |
1198 | return 0; | |
1199 | } else { | |
1200 | netif_stop_queue(dev); | |
1201 | spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags); | |
1202 | return 1; | |
1203 | } | |
1204 | } | |
1205 | ||
1206 | ||
1207 | static int streamer_close(struct net_device *dev) | |
1208 | { | |
1209 | struct streamer_private *streamer_priv = | |
1210 | (struct streamer_private *) dev->priv; | |
1211 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1212 | unsigned long flags; | |
1213 | int i; | |
1214 | ||
1215 | netif_stop_queue(dev); | |
1216 | netif_carrier_off(dev); | |
1217 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1218 | writew(htons(SRB_CLOSE_ADAPTER << 8),streamer_mmio+LAPDINC); | |
1219 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1220 | ||
1221 | spin_lock_irqsave(&streamer_priv->streamer_lock, flags); | |
1222 | ||
1223 | streamer_priv->srb_queued = 1; | |
1224 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1225 | ||
1226 | spin_unlock_irqrestore(&streamer_priv->streamer_lock, flags); | |
1227 | ||
1228 | while (streamer_priv->srb_queued) | |
1229 | { | |
1230 | interruptible_sleep_on_timeout(&streamer_priv->srb_wait, | |
1231 | jiffies + 60 * HZ); | |
1232 | if (signal_pending(current)) | |
1233 | { | |
1234 | printk(KERN_WARNING "%s: SRB timed out.\n", dev->name); | |
1235 | printk(KERN_WARNING "SISR=%x MISR=%x LISR=%x\n", | |
1236 | readw(streamer_mmio + SISR), | |
1237 | readw(streamer_mmio + MISR_RUM), | |
1238 | readw(streamer_mmio + LISR)); | |
1239 | streamer_priv->srb_queued = 0; | |
1240 | break; | |
1241 | } | |
1242 | } | |
1243 | ||
1244 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); | |
1245 | ||
1246 | for (i = 0; i < STREAMER_RX_RING_SIZE; i++) { | |
1247 | if (streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]) { | |
1248 | dev_kfree_skb(streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]); | |
1249 | } | |
1250 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); | |
1251 | } | |
1252 | ||
1253 | /* reset tx/rx fifo's and busmaster logic */ | |
1254 | ||
1255 | /* TBD. Add graceful way to reset the LLC channel without doing a soft reset. | |
1256 | writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL); | |
1257 | udelay(1); | |
1258 | writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); | |
1259 | */ | |
1260 | ||
1261 | #if STREAMER_DEBUG | |
1262 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1263 | printk("srb): "); | |
1264 | for (i = 0; i < 2; i++) { | |
1265 | printk("%x ", ntohs(readw(streamer_mmio + LAPDINC))); | |
1266 | } | |
1267 | printk("\n"); | |
1268 | #endif | |
1269 | free_irq(dev->irq, dev); | |
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | static void streamer_set_rx_mode(struct net_device *dev) | |
1274 | { | |
1275 | struct streamer_private *streamer_priv = | |
1276 | (struct streamer_private *) dev->priv; | |
1277 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1278 | __u8 options = 0; | |
1279 | struct dev_mc_list *dmi; | |
1280 | unsigned char dev_mc_address[5]; | |
1281 | int i; | |
1282 | ||
1283 | writel(streamer_priv->srb, streamer_mmio + LAPA); | |
1284 | options = streamer_priv->streamer_copy_all_options; | |
1285 | ||
1286 | if (dev->flags & IFF_PROMISC) | |
1287 | options |= (3 << 5); /* All LLC and MAC frames, all through the main rx channel */ | |
1288 | else | |
1289 | options &= ~(3 << 5); | |
1290 | ||
1291 | /* Only issue the srb if there is a change in options */ | |
1292 | ||
1293 | if ((options ^ streamer_priv->streamer_copy_all_options)) | |
1294 | { | |
1295 | /* Now to issue the srb command to alter the copy.all.options */ | |
1296 | writew(htons(SRB_MODIFY_RECEIVE_OPTIONS << 8), streamer_mmio+LAPDINC); | |
1297 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1298 | writew(htons((streamer_priv->streamer_receive_options << 8) | options),streamer_mmio+LAPDINC); | |
1299 | writew(htons(0x4a41),streamer_mmio+LAPDINC); | |
1300 | writew(htons(0x4d45),streamer_mmio+LAPDINC); | |
1301 | writew(htons(0x5320),streamer_mmio+LAPDINC); | |
1302 | writew(0x2020, streamer_mmio + LAPDINC); | |
1303 | ||
1304 | streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ | |
1305 | ||
1306 | writel(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1307 | ||
1308 | streamer_priv->streamer_copy_all_options = options; | |
1309 | return; | |
1310 | } | |
1311 | ||
1312 | /* Set the functional addresses we need for multicast */ | |
1313 | writel(streamer_priv->srb,streamer_mmio+LAPA); | |
1314 | dev_mc_address[0] = dev_mc_address[1] = dev_mc_address[2] = dev_mc_address[3] = 0 ; | |
1315 | ||
1316 | for (i=0,dmi=dev->mc_list;i < dev->mc_count; i++,dmi = dmi->next) | |
1317 | { | |
1318 | dev_mc_address[0] |= dmi->dmi_addr[2] ; | |
1319 | dev_mc_address[1] |= dmi->dmi_addr[3] ; | |
1320 | dev_mc_address[2] |= dmi->dmi_addr[4] ; | |
1321 | dev_mc_address[3] |= dmi->dmi_addr[5] ; | |
1322 | } | |
1323 | ||
1324 | writew(htons(SRB_SET_FUNC_ADDRESS << 8),streamer_mmio+LAPDINC); | |
1325 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1326 | writew(0,streamer_mmio+LAPDINC); | |
1327 | writew(htons( (dev_mc_address[0] << 8) | dev_mc_address[1]),streamer_mmio+LAPDINC); | |
1328 | writew(htons( (dev_mc_address[2] << 8) | dev_mc_address[3]),streamer_mmio+LAPDINC); | |
1329 | streamer_priv->srb_queued = 2 ; | |
1330 | writel(LISR_SRB_CMD,streamer_mmio+LISR_SUM); | |
1331 | } | |
1332 | ||
1333 | static void streamer_srb_bh(struct net_device *dev) | |
1334 | { | |
1335 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
1336 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1337 | __u16 srb_word; | |
1338 | ||
1339 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1340 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1341 | ||
1342 | switch (srb_word) { | |
1343 | ||
1344 | /* SRB_MODIFY_RECEIVE_OPTIONS i.e. set_multicast_list options (promiscuous) | |
1345 | * At some point we should do something if we get an error, such as | |
1346 | * resetting the IFF_PROMISC flag in dev | |
1347 | */ | |
1348 | ||
1349 | case SRB_MODIFY_RECEIVE_OPTIONS: | |
1350 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1351 | ||
1352 | switch (srb_word) { | |
1353 | case 0x01: | |
1354 | printk(KERN_WARNING "%s: Unrecognized srb command\n", dev->name); | |
1355 | break; | |
1356 | case 0x04: | |
1357 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1358 | break; | |
1359 | default: | |
1360 | if (streamer_priv->streamer_message_level) | |
1361 | printk(KERN_WARNING "%s: Receive Options Modified to %x,%x\n", | |
1362 | dev->name, | |
1363 | streamer_priv->streamer_copy_all_options, | |
1364 | streamer_priv->streamer_receive_options); | |
1365 | break; | |
1366 | } /* switch srb[2] */ | |
1367 | break; | |
1368 | ||
1369 | ||
1370 | /* SRB_SET_GROUP_ADDRESS - Multicast group setting | |
1371 | */ | |
1372 | case SRB_SET_GROUP_ADDRESS: | |
1373 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1374 | switch (srb_word) { | |
1375 | case 0x00: | |
1376 | break; | |
1377 | case 0x01: | |
1378 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name); | |
1379 | break; | |
1380 | case 0x04: | |
1381 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1382 | break; | |
1383 | case 0x3c: | |
1384 | printk(KERN_WARNING "%s: Group/Functional address indicator bits not set correctly\n", dev->name); | |
1385 | break; | |
1386 | case 0x3e: /* If we ever implement individual multicast addresses, will need to deal with this */ | |
1387 | printk(KERN_WARNING "%s: Group address registers full\n", dev->name); | |
1388 | break; | |
1389 | case 0x55: | |
1390 | printk(KERN_INFO "%s: Group Address already set.\n", dev->name); | |
1391 | break; | |
1392 | default: | |
1393 | break; | |
1394 | } /* switch srb[2] */ | |
1395 | break; | |
1396 | ||
1397 | ||
1398 | /* SRB_RESET_GROUP_ADDRESS - Remove a multicast address from group list | |
1399 | */ | |
1400 | case SRB_RESET_GROUP_ADDRESS: | |
1401 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1402 | switch (srb_word) { | |
1403 | case 0x00: | |
1404 | break; | |
1405 | case 0x01: | |
1406 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1407 | break; | |
1408 | case 0x04: | |
1409 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1410 | break; | |
1411 | case 0x39: /* Must deal with this if individual multicast addresses used */ | |
1412 | printk(KERN_INFO "%s: Group address not found \n", dev->name); | |
1413 | break; | |
1414 | default: | |
1415 | break; | |
1416 | } /* switch srb[2] */ | |
1417 | break; | |
1418 | ||
1419 | ||
1420 | /* SRB_SET_FUNC_ADDRESS - Called by the set_rx_mode | |
1421 | */ | |
1422 | ||
1423 | case SRB_SET_FUNC_ADDRESS: | |
1424 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1425 | switch (srb_word) { | |
1426 | case 0x00: | |
1427 | if (streamer_priv->streamer_message_level) | |
1428 | printk(KERN_INFO "%s: Functional Address Mask Set \n", dev->name); | |
1429 | break; | |
1430 | case 0x01: | |
1431 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1432 | break; | |
1433 | case 0x04: | |
1434 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1435 | break; | |
1436 | default: | |
1437 | break; | |
1438 | } /* switch srb[2] */ | |
1439 | break; | |
1440 | ||
1441 | /* SRB_READ_LOG - Read and reset the adapter error counters | |
1442 | */ | |
1443 | ||
1444 | case SRB_READ_LOG: | |
1445 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1446 | switch (srb_word) { | |
1447 | case 0x00: | |
1448 | { | |
1449 | int i; | |
1450 | if (streamer_priv->streamer_message_level) | |
1451 | printk(KERN_INFO "%s: Read Log command complete\n", dev->name); | |
1452 | printk("Read Log statistics: "); | |
1453 | writew(streamer_priv->srb + 6, | |
1454 | streamer_mmio + LAPA); | |
1455 | for (i = 0; i < 5; i++) { | |
1456 | printk("%x:", ntohs(readw(streamer_mmio + LAPDINC))); | |
1457 | } | |
1458 | printk("\n"); | |
1459 | } | |
1460 | break; | |
1461 | case 0x01: | |
1462 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1463 | break; | |
1464 | case 0x04: | |
1465 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1466 | break; | |
1467 | ||
1468 | } /* switch srb[2] */ | |
1469 | break; | |
1470 | ||
1471 | /* SRB_READ_SR_COUNTERS - Read and reset the source routing bridge related counters */ | |
1472 | ||
1473 | case SRB_READ_SR_COUNTERS: | |
1474 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1475 | switch (srb_word) { | |
1476 | case 0x00: | |
1477 | if (streamer_priv->streamer_message_level) | |
1478 | printk(KERN_INFO "%s: Read Source Routing Counters issued\n", dev->name); | |
1479 | break; | |
1480 | case 0x01: | |
1481 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1482 | break; | |
1483 | case 0x04: | |
1484 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1485 | break; | |
1486 | default: | |
1487 | break; | |
1488 | } /* switch srb[2] */ | |
1489 | break; | |
1490 | ||
1491 | default: | |
1492 | printk(KERN_WARNING "%s: Unrecognized srb bh return value.\n", dev->name); | |
1493 | break; | |
1494 | } /* switch srb[0] */ | |
1495 | } | |
1496 | ||
1497 | static struct net_device_stats *streamer_get_stats(struct net_device *dev) | |
1498 | { | |
1499 | struct streamer_private *streamer_priv; | |
1500 | streamer_priv = (struct streamer_private *) dev->priv; | |
1501 | return (struct net_device_stats *) &streamer_priv->streamer_stats; | |
1502 | } | |
1503 | ||
1504 | static int streamer_set_mac_address(struct net_device *dev, void *addr) | |
1505 | { | |
1506 | struct sockaddr *saddr = addr; | |
1507 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
1508 | ||
1509 | if (netif_running(dev)) | |
1510 | { | |
1511 | printk(KERN_WARNING "%s: Cannot set mac/laa address while card is open\n", dev->name); | |
1512 | return -EIO; | |
1513 | } | |
1514 | ||
1515 | memcpy(streamer_priv->streamer_laa, saddr->sa_data, dev->addr_len); | |
1516 | ||
1517 | if (streamer_priv->streamer_message_level) { | |
1518 | printk(KERN_INFO "%s: MAC/LAA Set to = %x.%x.%x.%x.%x.%x\n", | |
1519 | dev->name, streamer_priv->streamer_laa[0], | |
1520 | streamer_priv->streamer_laa[1], | |
1521 | streamer_priv->streamer_laa[2], | |
1522 | streamer_priv->streamer_laa[3], | |
1523 | streamer_priv->streamer_laa[4], | |
1524 | streamer_priv->streamer_laa[5]); | |
1525 | } | |
1526 | return 0; | |
1527 | } | |
1528 | ||
1529 | static void streamer_arb_cmd(struct net_device *dev) | |
1530 | { | |
1531 | struct streamer_private *streamer_priv = | |
1532 | (struct streamer_private *) dev->priv; | |
1533 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1534 | __u8 header_len; | |
1535 | __u16 frame_len, buffer_len; | |
1536 | struct sk_buff *mac_frame; | |
1537 | __u8 frame_data[256]; | |
1538 | __u16 buff_off; | |
1539 | __u16 lan_status = 0, lan_status_diff; /* Initialize to stop compiler warning */ | |
1540 | __u8 fdx_prot_error; | |
1541 | __u16 next_ptr; | |
1542 | __u16 arb_word; | |
1543 | ||
1544 | #if STREAMER_NETWORK_MONITOR | |
1545 | struct trh_hdr *mac_hdr; | |
1546 | #endif | |
1547 | ||
1548 | writew(streamer_priv->arb, streamer_mmio + LAPA); | |
1549 | arb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
1550 | ||
1551 | if (arb_word == ARB_RECEIVE_DATA) { /* Receive.data, MAC frames */ | |
1552 | writew(streamer_priv->arb + 6, streamer_mmio + LAPA); | |
1553 | streamer_priv->mac_rx_buffer = buff_off = ntohs(readw(streamer_mmio + LAPDINC)); | |
1554 | header_len=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; /* 802.5 Token-Ring Header Length */ | |
1555 | frame_len = ntohs(readw(streamer_mmio + LAPDINC)); | |
1556 | ||
1557 | #if STREAMER_DEBUG | |
1558 | { | |
1559 | int i; | |
1560 | __u16 next; | |
1561 | __u8 status; | |
1562 | __u16 len; | |
1563 | ||
1564 | writew(ntohs(buff_off), streamer_mmio + LAPA); /*setup window to frame data */ | |
1565 | next = htons(readw(streamer_mmio + LAPDINC)); | |
1566 | status = | |
1567 | ntohs(readw(streamer_mmio + LAPDINC)) & 0xff; | |
1568 | len = ntohs(readw(streamer_mmio + LAPDINC)); | |
1569 | ||
1570 | /* print out 1st 14 bytes of frame data */ | |
1571 | for (i = 0; i < 7; i++) { | |
1572 | printk("Loc %d = %04x\n", i, | |
1573 | ntohs(readw | |
1574 | (streamer_mmio + LAPDINC))); | |
1575 | } | |
1576 | ||
1577 | printk("next %04x, fs %02x, len %04x \n", next, | |
1578 | status, len); | |
1579 | } | |
1580 | #endif | |
1581 | if (!(mac_frame = dev_alloc_skb(frame_len))) { | |
1582 | printk(KERN_WARNING "%s: Memory squeeze, dropping frame.\n", | |
1583 | dev->name); | |
1584 | goto drop_frame; | |
1585 | } | |
1586 | /* Walk the buffer chain, creating the frame */ | |
1587 | ||
1588 | do { | |
1589 | int i; | |
1590 | __u16 rx_word; | |
1591 | ||
1592 | writew(htons(buff_off), streamer_mmio + LAPA); /* setup window to frame data */ | |
1593 | next_ptr = ntohs(readw(streamer_mmio + LAPDINC)); | |
1594 | readw(streamer_mmio + LAPDINC); /* read thru status word */ | |
1595 | buffer_len = ntohs(readw(streamer_mmio + LAPDINC)); | |
1596 | ||
1597 | if (buffer_len > 256) | |
1598 | break; | |
1599 | ||
1600 | i = 0; | |
1601 | while (i < buffer_len) { | |
1602 | rx_word=ntohs(readw(streamer_mmio+LAPDINC)); | |
1603 | frame_data[i]=rx_word >> 8; | |
1604 | frame_data[i+1]=rx_word & 0xff; | |
1605 | i += 2; | |
1606 | } | |
1607 | ||
1608 | memcpy(skb_put(mac_frame, buffer_len), | |
1609 | frame_data, buffer_len); | |
1610 | } while (next_ptr && (buff_off = next_ptr)); | |
1611 | ||
1612 | #if STREAMER_NETWORK_MONITOR | |
1613 | printk(KERN_WARNING "%s: Received MAC Frame, details: \n", | |
1614 | dev->name); | |
1615 | mac_hdr = (struct trh_hdr *) mac_frame->data; | |
1616 | printk(KERN_WARNING | |
1617 | "%s: MAC Frame Dest. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", | |
1618 | dev->name, mac_hdr->daddr[0], mac_hdr->daddr[1], | |
1619 | mac_hdr->daddr[2], mac_hdr->daddr[3], | |
1620 | mac_hdr->daddr[4], mac_hdr->daddr[5]); | |
1621 | printk(KERN_WARNING | |
1622 | "%s: MAC Frame Srce. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", | |
1623 | dev->name, mac_hdr->saddr[0], mac_hdr->saddr[1], | |
1624 | mac_hdr->saddr[2], mac_hdr->saddr[3], | |
1625 | mac_hdr->saddr[4], mac_hdr->saddr[5]); | |
1626 | #endif | |
1627 | mac_frame->dev = dev; | |
1628 | mac_frame->protocol = tr_type_trans(mac_frame, dev); | |
1629 | netif_rx(mac_frame); | |
1630 | ||
1631 | /* Now tell the card we have dealt with the received frame */ | |
1632 | drop_frame: | |
1633 | /* Set LISR Bit 1 */ | |
1634 | writel(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM); | |
1635 | ||
1636 | /* Is the ASB free ? */ | |
1637 | ||
1638 | if (!(readl(streamer_priv->streamer_mmio + SISR) & SISR_ASB_FREE)) | |
1639 | { | |
1640 | streamer_priv->asb_queued = 1; | |
1641 | writel(LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); | |
1642 | return; | |
1643 | /* Drop out and wait for the bottom half to be run */ | |
1644 | } | |
1645 | ||
1646 | ||
1647 | writew(streamer_priv->asb, streamer_mmio + LAPA); | |
1648 | writew(htons(ASB_RECEIVE_DATA << 8), streamer_mmio+LAPDINC); | |
1649 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1650 | writew(0, streamer_mmio + LAPDINC); | |
1651 | writew(htons(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD); | |
1652 | ||
1653 | writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); | |
1654 | ||
1655 | streamer_priv->asb_queued = 2; | |
1656 | return; | |
1657 | ||
1658 | } else if (arb_word == ARB_LAN_CHANGE_STATUS) { /* Lan.change.status */ | |
1659 | writew(streamer_priv->arb + 6, streamer_mmio + LAPA); | |
1660 | lan_status = ntohs(readw(streamer_mmio + LAPDINC)); | |
1661 | fdx_prot_error = ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
1662 | ||
1663 | /* Issue ARB Free */ | |
1664 | writew(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM); | |
1665 | ||
1666 | lan_status_diff = (streamer_priv->streamer_lan_status ^ lan_status) & | |
1667 | lan_status; | |
1668 | ||
1669 | if (lan_status_diff & (LSC_LWF | LSC_ARW | LSC_FPE | LSC_RR)) | |
1670 | { | |
1671 | if (lan_status_diff & LSC_LWF) | |
1672 | printk(KERN_WARNING "%s: Short circuit detected on the lobe\n", dev->name); | |
1673 | if (lan_status_diff & LSC_ARW) | |
1674 | printk(KERN_WARNING "%s: Auto removal error\n", dev->name); | |
1675 | if (lan_status_diff & LSC_FPE) | |
1676 | printk(KERN_WARNING "%s: FDX Protocol Error\n", dev->name); | |
1677 | if (lan_status_diff & LSC_RR) | |
1678 | printk(KERN_WARNING "%s: Force remove MAC frame received\n", dev->name); | |
1679 | ||
1680 | /* Adapter has been closed by the hardware */ | |
1681 | ||
1682 | /* reset tx/rx fifo's and busmaster logic */ | |
1683 | ||
1684 | /* @TBD. no llc reset on autostreamer writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL); | |
1685 | udelay(1); | |
1686 | writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); */ | |
1687 | ||
1688 | netif_stop_queue(dev); | |
1689 | netif_carrier_off(dev); | |
1690 | printk(KERN_WARNING "%s: Adapter must be manually reset.\n", dev->name); | |
1691 | } | |
1692 | /* If serious error */ | |
1693 | if (streamer_priv->streamer_message_level) { | |
1694 | if (lan_status_diff & LSC_SIG_LOSS) | |
1695 | printk(KERN_WARNING "%s: No receive signal detected \n", dev->name); | |
1696 | if (lan_status_diff & LSC_HARD_ERR) | |
1697 | printk(KERN_INFO "%s: Beaconing \n", dev->name); | |
1698 | if (lan_status_diff & LSC_SOFT_ERR) | |
1699 | printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame \n", dev->name); | |
1700 | if (lan_status_diff & LSC_TRAN_BCN) | |
1701 | printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n", dev->name); | |
1702 | if (lan_status_diff & LSC_SS) | |
1703 | printk(KERN_INFO "%s: Single Station on the ring \n", dev->name); | |
1704 | if (lan_status_diff & LSC_RING_REC) | |
1705 | printk(KERN_INFO "%s: Ring recovery ongoing\n", dev->name); | |
1706 | if (lan_status_diff & LSC_FDX_MODE) | |
1707 | printk(KERN_INFO "%s: Operating in FDX mode\n", dev->name); | |
1708 | } | |
1709 | ||
1710 | if (lan_status_diff & LSC_CO) { | |
1711 | if (streamer_priv->streamer_message_level) | |
1712 | printk(KERN_INFO "%s: Counter Overflow \n", dev->name); | |
1713 | ||
1714 | /* Issue READ.LOG command */ | |
1715 | ||
1716 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1717 | writew(htons(SRB_READ_LOG << 8),streamer_mmio+LAPDINC); | |
1718 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1719 | writew(0, streamer_mmio + LAPDINC); | |
1720 | streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ | |
1721 | ||
1722 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1723 | } | |
1724 | ||
1725 | if (lan_status_diff & LSC_SR_CO) { | |
1726 | if (streamer_priv->streamer_message_level) | |
1727 | printk(KERN_INFO "%s: Source routing counters overflow\n", dev->name); | |
1728 | ||
1729 | /* Issue a READ.SR.COUNTERS */ | |
1730 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1731 | writew(htons(SRB_READ_SR_COUNTERS << 8), | |
1732 | streamer_mmio+LAPDINC); | |
1733 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), | |
1734 | streamer_mmio+LAPDINC); | |
1735 | streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ | |
1736 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1737 | ||
1738 | } | |
1739 | streamer_priv->streamer_lan_status = lan_status; | |
1740 | } /* Lan.change.status */ | |
1741 | else | |
1742 | printk(KERN_WARNING "%s: Unknown arb command \n", dev->name); | |
1743 | } | |
1744 | ||
1745 | static void streamer_asb_bh(struct net_device *dev) | |
1746 | { | |
1747 | struct streamer_private *streamer_priv = | |
1748 | (struct streamer_private *) dev->priv; | |
1749 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1750 | ||
1751 | if (streamer_priv->asb_queued == 1) | |
1752 | { | |
1753 | /* Dropped through the first time */ | |
1754 | ||
1755 | writew(streamer_priv->asb, streamer_mmio + LAPA); | |
1756 | writew(htons(ASB_RECEIVE_DATA << 8),streamer_mmio+LAPDINC); | |
1757 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1758 | writew(0, streamer_mmio + LAPDINC); | |
1759 | writew(htons(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD); | |
1760 | ||
1761 | writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); | |
1762 | streamer_priv->asb_queued = 2; | |
1763 | ||
1764 | return; | |
1765 | } | |
1766 | ||
1767 | if (streamer_priv->asb_queued == 2) { | |
1768 | __u8 rc; | |
1769 | writew(streamer_priv->asb + 2, streamer_mmio + LAPA); | |
1770 | rc=ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
1771 | switch (rc) { | |
1772 | case 0x01: | |
1773 | printk(KERN_WARNING "%s: Unrecognized command code \n", dev->name); | |
1774 | break; | |
1775 | case 0x26: | |
1776 | printk(KERN_WARNING "%s: Unrecognized buffer address \n", dev->name); | |
1777 | break; | |
1778 | case 0xFF: | |
1779 | /* Valid response, everything should be ok again */ | |
1780 | break; | |
1781 | default: | |
1782 | printk(KERN_WARNING "%s: Invalid return code in asb\n", dev->name); | |
1783 | break; | |
1784 | } | |
1785 | } | |
1786 | streamer_priv->asb_queued = 0; | |
1787 | } | |
1788 | ||
1789 | static int streamer_change_mtu(struct net_device *dev, int mtu) | |
1790 | { | |
1791 | struct streamer_private *streamer_priv = | |
1792 | (struct streamer_private *) dev->priv; | |
1793 | __u16 max_mtu; | |
1794 | ||
1795 | if (streamer_priv->streamer_ring_speed == 4) | |
1796 | max_mtu = 4500; | |
1797 | else | |
1798 | max_mtu = 18000; | |
1799 | ||
1800 | if (mtu > max_mtu) | |
1801 | return -EINVAL; | |
1802 | if (mtu < 100) | |
1803 | return -EINVAL; | |
1804 | ||
1805 | dev->mtu = mtu; | |
1806 | streamer_priv->pkt_buf_sz = mtu + TR_HLEN; | |
1807 | ||
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | #if STREAMER_NETWORK_MONITOR | |
1812 | #ifdef CONFIG_PROC_FS | |
1813 | static int streamer_proc_info(char *buffer, char **start, off_t offset, | |
1814 | int length, int *eof, void *data) | |
1815 | { | |
1816 | struct streamer_private *sdev=NULL; | |
1817 | struct pci_dev *pci_device = NULL; | |
1818 | int len = 0; | |
1819 | off_t begin = 0; | |
1820 | off_t pos = 0; | |
1821 | int size; | |
1822 | ||
1823 | struct net_device *dev; | |
1824 | ||
1825 | size = sprintf(buffer, "IBM LanStreamer/MPC Chipset Token Ring Adapters\n"); | |
1826 | ||
1827 | pos += size; | |
1828 | len += size; | |
1829 | ||
1830 | for(sdev=dev_streamer; sdev; sdev=sdev->next) { | |
1831 | pci_device=sdev->pci_dev; | |
1832 | dev=pci_get_drvdata(pci_device); | |
1833 | ||
1834 | size = sprintf_info(buffer + len, dev); | |
1835 | len += size; | |
1836 | pos = begin + len; | |
1837 | ||
1838 | if (pos < offset) { | |
1839 | len = 0; | |
1840 | begin = pos; | |
1841 | } | |
1842 | if (pos > offset + length) | |
1843 | break; | |
1844 | } /* for */ | |
1845 | ||
1846 | *start = buffer + (offset - begin); /* Start of wanted data */ | |
1847 | len -= (offset - begin); /* Start slop */ | |
1848 | if (len > length) | |
1849 | len = length; /* Ending slop */ | |
1850 | return len; | |
1851 | } | |
1852 | ||
1853 | static int sprintf_info(char *buffer, struct net_device *dev) | |
1854 | { | |
1855 | struct streamer_private *streamer_priv = | |
1856 | (struct streamer_private *) dev->priv; | |
1857 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1858 | struct streamer_adapter_addr_table sat; | |
1859 | struct streamer_parameters_table spt; | |
1860 | int size = 0; | |
1861 | int i; | |
1862 | ||
1863 | writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA); | |
1864 | for (i = 0; i < 14; i += 2) { | |
1865 | __u16 io_word; | |
1866 | __u8 *datap = (__u8 *) & sat; | |
1867 | io_word=ntohs(readw(streamer_mmio+LAPDINC)); | |
1868 | datap[size]=io_word >> 8; | |
1869 | datap[size+1]=io_word & 0xff; | |
1870 | } | |
1871 | writew(streamer_priv->streamer_parms_addr, streamer_mmio + LAPA); | |
1872 | for (i = 0; i < 68; i += 2) { | |
1873 | __u16 io_word; | |
1874 | __u8 *datap = (__u8 *) & spt; | |
1875 | io_word=ntohs(readw(streamer_mmio+LAPDINC)); | |
1876 | datap[size]=io_word >> 8; | |
1877 | datap[size+1]=io_word & 0xff; | |
1878 | } | |
1879 | ||
1880 | ||
1881 | size = sprintf(buffer, "\n%6s: Adapter Address : Node Address : Functional Addr\n", dev->name); | |
1882 | ||
1883 | size += sprintf(buffer + size, | |
1884 | "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x\n", | |
1885 | dev->name, dev->dev_addr[0], dev->dev_addr[1], | |
1886 | dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4], | |
1887 | dev->dev_addr[5], sat.node_addr[0], sat.node_addr[1], | |
1888 | sat.node_addr[2], sat.node_addr[3], sat.node_addr[4], | |
1889 | sat.node_addr[5], sat.func_addr[0], sat.func_addr[1], | |
1890 | sat.func_addr[2], sat.func_addr[3]); | |
1891 | ||
1892 | size += sprintf(buffer + size, "\n%6s: Token Ring Parameters Table:\n", dev->name); | |
1893 | ||
1894 | size += sprintf(buffer + size, "%6s: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code :\n", dev->name); | |
1895 | ||
1896 | size += sprintf(buffer + size, | |
1897 | "%6s: %02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x :\n", | |
1898 | dev->name, spt.phys_addr[0], spt.phys_addr[1], | |
1899 | spt.phys_addr[2], spt.phys_addr[3], | |
1900 | spt.up_node_addr[0], spt.up_node_addr[1], | |
1901 | spt.up_node_addr[2], spt.up_node_addr[3], | |
1902 | spt.up_node_addr[4], spt.up_node_addr[4], | |
1903 | spt.poll_addr[0], spt.poll_addr[1], spt.poll_addr[2], | |
1904 | spt.poll_addr[3], spt.poll_addr[4], spt.poll_addr[5], | |
1905 | ntohs(spt.acc_priority), ntohs(spt.auth_source_class), | |
1906 | ntohs(spt.att_code)); | |
1907 | ||
1908 | size += sprintf(buffer + size, "%6s: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : \n", dev->name); | |
1909 | ||
1910 | size += sprintf(buffer + size, | |
1911 | "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x : %04x : %04x : %04x : \n", | |
1912 | dev->name, spt.source_addr[0], spt.source_addr[1], | |
1913 | spt.source_addr[2], spt.source_addr[3], | |
1914 | spt.source_addr[4], spt.source_addr[5], | |
1915 | ntohs(spt.beacon_type), ntohs(spt.major_vector), | |
1916 | ntohs(spt.lan_status), ntohs(spt.local_ring), | |
1917 | ntohs(spt.mon_error), ntohs(spt.frame_correl)); | |
1918 | ||
1919 | size += sprintf(buffer + size, "%6s: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : \n", | |
1920 | dev->name); | |
1921 | ||
1922 | size += sprintf(buffer + size, | |
1923 | "%6s: : %02x : %02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x : \n", | |
1924 | dev->name, ntohs(spt.beacon_transmit), | |
1925 | ntohs(spt.beacon_receive), spt.beacon_naun[0], | |
1926 | spt.beacon_naun[1], spt.beacon_naun[2], | |
1927 | spt.beacon_naun[3], spt.beacon_naun[4], | |
1928 | spt.beacon_naun[5], spt.beacon_phys[0], | |
1929 | spt.beacon_phys[1], spt.beacon_phys[2], | |
1930 | spt.beacon_phys[3]); | |
1931 | return size; | |
1932 | } | |
1933 | #endif | |
1934 | #endif | |
1935 | ||
1936 | #if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | |
1937 | static int streamer_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
1938 | { | |
1939 | int i; | |
1940 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
1941 | u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1942 | ||
1943 | switch(cmd) { | |
1944 | case IOCTL_SISR_MASK: | |
1945 | writew(SISR_MI, streamer_mmio + SISR_MASK_SUM); | |
1946 | break; | |
1947 | case IOCTL_SPIN_LOCK_TEST: | |
1948 | printk(KERN_INFO "spin_lock() called.\n"); | |
1949 | spin_lock(&streamer_priv->streamer_lock); | |
1950 | spin_unlock(&streamer_priv->streamer_lock); | |
1951 | printk(KERN_INFO "spin_unlock() finished.\n"); | |
1952 | break; | |
1953 | case IOCTL_PRINT_BDAS: | |
1954 | printk(KERN_INFO "bdas: RXBDA: %x RXLBDA: %x TX2FDA: %x TX2LFDA: %x\n", | |
1955 | readw(streamer_mmio + RXBDA), | |
1956 | readw(streamer_mmio + RXLBDA), | |
1957 | readw(streamer_mmio + TX2FDA), | |
1958 | readw(streamer_mmio + TX2LFDA)); | |
1959 | break; | |
1960 | case IOCTL_PRINT_REGISTERS: | |
1961 | printk(KERN_INFO "registers:\n"); | |
1962 | printk(KERN_INFO "SISR: %04x MISR: %04x LISR: %04x BCTL: %04x BMCTL: %04x\nmask %04x mask %04x\n", | |
1963 | readw(streamer_mmio + SISR), | |
1964 | readw(streamer_mmio + MISR_RUM), | |
1965 | readw(streamer_mmio + LISR), | |
1966 | readw(streamer_mmio + BCTL), | |
1967 | readw(streamer_mmio + BMCTL_SUM), | |
1968 | readw(streamer_mmio + SISR_MASK), | |
1969 | readw(streamer_mmio + MISR_MASK)); | |
1970 | break; | |
1971 | case IOCTL_PRINT_RX_BUFS: | |
1972 | printk(KERN_INFO "Print rx bufs:\n"); | |
1973 | for(i=0; i<STREAMER_RX_RING_SIZE; i++) | |
1974 | printk(KERN_INFO "rx_ring %d status: 0x%x\n", i, | |
1975 | streamer_priv->streamer_rx_ring[i].status); | |
1976 | break; | |
1977 | case IOCTL_PRINT_TX_BUFS: | |
1978 | printk(KERN_INFO "Print tx bufs:\n"); | |
1979 | for(i=0; i<STREAMER_TX_RING_SIZE; i++) | |
1980 | printk(KERN_INFO "tx_ring %d status: 0x%x\n", i, | |
1981 | streamer_priv->streamer_tx_ring[i].status); | |
1982 | break; | |
1983 | case IOCTL_RX_CMD: | |
1984 | streamer_rx(dev); | |
1985 | printk(KERN_INFO "Sent rx command.\n"); | |
1986 | break; | |
1987 | default: | |
1988 | printk(KERN_INFO "Bad ioctl!\n"); | |
1989 | } | |
1990 | return 0; | |
1991 | } | |
1992 | #endif | |
1993 | ||
1994 | static struct pci_driver streamer_pci_driver = { | |
1995 | .name = "lanstreamer", | |
1996 | .id_table = streamer_pci_tbl, | |
1997 | .probe = streamer_init_one, | |
1998 | .remove = __devexit_p(streamer_remove_one), | |
1999 | }; | |
2000 | ||
2001 | static int __init streamer_init_module(void) { | |
2002 | return pci_module_init(&streamer_pci_driver); | |
2003 | } | |
2004 | ||
2005 | static void __exit streamer_cleanup_module(void) { | |
2006 | pci_unregister_driver(&streamer_pci_driver); | |
2007 | } | |
2008 | ||
2009 | module_init(streamer_init_module); | |
2010 | module_exit(streamer_cleanup_module); | |
2011 | MODULE_LICENSE("GPL"); |