Commit | Line | Data |
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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 | ||
1da177e4 LT |
103 | #include <linux/module.h> |
104 | #include <linux/kernel.h> | |
105 | #include <linux/errno.h> | |
106 | #include <linux/timer.h> | |
107 | #include <linux/in.h> | |
108 | #include <linux/ioport.h> | |
109 | #include <linux/string.h> | |
110 | #include <linux/proc_fs.h> | |
111 | #include <linux/ptrace.h> | |
112 | #include <linux/skbuff.h> | |
113 | #include <linux/interrupt.h> | |
114 | #include <linux/delay.h> | |
115 | #include <linux/netdevice.h> | |
116 | #include <linux/trdevice.h> | |
117 | #include <linux/stddef.h> | |
118 | #include <linux/init.h> | |
119 | #include <linux/pci.h> | |
1e7f0bd8 | 120 | #include <linux/dma-mapping.h> |
1da177e4 LT |
121 | #include <linux/spinlock.h> |
122 | #include <linux/version.h> | |
123 | #include <linux/bitops.h> | |
ff5688ae | 124 | #include <linux/jiffies.h> |
1da177e4 LT |
125 | |
126 | #include <net/checksum.h> | |
127 | ||
128 | #include <asm/io.h> | |
129 | #include <asm/system.h> | |
130 | ||
131 | #include "lanstreamer.h" | |
132 | ||
133 | #if (BITS_PER_LONG == 64) | |
134 | #error broken on 64-bit: stores pointer to rx_ring->buffer in 32-bit int | |
135 | #endif | |
136 | ||
137 | ||
138 | /* I've got to put some intelligence into the version number so that Peter and I know | |
139 | * which version of the code somebody has got. | |
140 | * Version Number = a.b.c.d where a.b.c is the level of code and d is the latest author. | |
141 | * So 0.0.1.pds = Peter, 0.0.1.mlp = Mike | |
142 | * | |
143 | * Official releases will only have an a.b.c version number format. | |
144 | */ | |
145 | ||
146 | static char version[] = "LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan\n" | |
147 | " v0.5.3 11/13/02 - Kent Yoder"; | |
148 | ||
149 | static struct pci_device_id streamer_pci_tbl[] = { | |
150 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_TR, PCI_ANY_ID, PCI_ANY_ID,}, | |
151 | {} /* terminating entry */ | |
152 | }; | |
153 | MODULE_DEVICE_TABLE(pci,streamer_pci_tbl); | |
154 | ||
155 | ||
156 | static char *open_maj_error[] = { | |
157 | "No error", "Lobe Media Test", "Physical Insertion", | |
158 | "Address Verification", "Neighbor Notification (Ring Poll)", | |
159 | "Request Parameters", "FDX Registration Request", | |
160 | "FDX Lobe Media Test", "FDX Duplicate Address Check", | |
161 | "Unknown stage" | |
162 | }; | |
163 | ||
164 | static char *open_min_error[] = { | |
165 | "No error", "Function Failure", "Signal Lost", "Wire Fault", | |
166 | "Ring Speed Mismatch", "Timeout", "Ring Failure", "Ring Beaconing", | |
167 | "Duplicate Node Address", "Request Parameters", "Remove Received", | |
168 | "Reserved", "Reserved", "No Monitor Detected for RPL", | |
169 | "Monitor Contention failer for RPL", "FDX Protocol Error" | |
170 | }; | |
171 | ||
172 | /* Module paramters */ | |
173 | ||
174 | /* Ring Speed 0,4,16 | |
175 | * 0 = Autosense | |
176 | * 4,16 = Selected speed only, no autosense | |
177 | * This allows the card to be the first on the ring | |
178 | * and become the active monitor. | |
179 | * | |
180 | * WARNING: Some hubs will allow you to insert | |
181 | * at the wrong speed | |
182 | */ | |
183 | ||
184 | static int ringspeed[STREAMER_MAX_ADAPTERS] = { 0, }; | |
185 | ||
186 | module_param_array(ringspeed, int, NULL, 0); | |
187 | ||
188 | /* Packet buffer size */ | |
189 | ||
190 | static int pkt_buf_sz[STREAMER_MAX_ADAPTERS] = { 0, }; | |
191 | ||
192 | module_param_array(pkt_buf_sz, int, NULL, 0); | |
193 | ||
194 | /* Message Level */ | |
195 | ||
196 | static int message_level[STREAMER_MAX_ADAPTERS] = { 1, }; | |
197 | ||
198 | module_param_array(message_level, int, NULL, 0); | |
199 | ||
200 | #if STREAMER_IOCTL | |
201 | static int streamer_ioctl(struct net_device *, struct ifreq *, int); | |
202 | #endif | |
203 | ||
204 | static int streamer_reset(struct net_device *dev); | |
205 | static int streamer_open(struct net_device *dev); | |
206 | static int streamer_xmit(struct sk_buff *skb, struct net_device *dev); | |
207 | static int streamer_close(struct net_device *dev); | |
208 | static void streamer_set_rx_mode(struct net_device *dev); | |
209 | static irqreturn_t streamer_interrupt(int irq, void *dev_id, | |
210 | struct pt_regs *regs); | |
211 | static struct net_device_stats *streamer_get_stats(struct net_device *dev); | |
212 | static int streamer_set_mac_address(struct net_device *dev, void *addr); | |
213 | static void streamer_arb_cmd(struct net_device *dev); | |
214 | static int streamer_change_mtu(struct net_device *dev, int mtu); | |
215 | static void streamer_srb_bh(struct net_device *dev); | |
216 | static void streamer_asb_bh(struct net_device *dev); | |
217 | #if STREAMER_NETWORK_MONITOR | |
218 | #ifdef CONFIG_PROC_FS | |
219 | static int streamer_proc_info(char *buffer, char **start, off_t offset, | |
220 | int length, int *eof, void *data); | |
221 | static int sprintf_info(char *buffer, struct net_device *dev); | |
222 | struct streamer_private *dev_streamer=NULL; | |
223 | #endif | |
224 | #endif | |
225 | ||
226 | static int __devinit streamer_init_one(struct pci_dev *pdev, | |
227 | const struct pci_device_id *ent) | |
228 | { | |
229 | struct net_device *dev; | |
230 | struct streamer_private *streamer_priv; | |
231 | unsigned long pio_start, pio_end, pio_flags, pio_len; | |
232 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; | |
233 | int rc = 0; | |
234 | static int card_no=-1; | |
235 | u16 pcr; | |
236 | ||
237 | #if STREAMER_DEBUG | |
238 | printk("lanstreamer::streamer_init_one, entry pdev %p\n",pdev); | |
239 | #endif | |
240 | ||
241 | card_no++; | |
242 | dev = alloc_trdev(sizeof(*streamer_priv)); | |
243 | if (dev==NULL) { | |
244 | printk(KERN_ERR "lanstreamer: out of memory.\n"); | |
245 | return -ENOMEM; | |
246 | } | |
247 | ||
248 | SET_MODULE_OWNER(dev); | |
249 | streamer_priv = dev->priv; | |
250 | ||
251 | #if STREAMER_NETWORK_MONITOR | |
252 | #ifdef CONFIG_PROC_FS | |
253 | if (!dev_streamer) | |
254 | create_proc_read_entry("net/streamer_tr", 0, 0, | |
255 | streamer_proc_info, NULL); | |
256 | streamer_priv->next = dev_streamer; | |
257 | dev_streamer = streamer_priv; | |
258 | #endif | |
259 | #endif | |
260 | ||
1e7f0bd8 | 261 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 LT |
262 | if (rc) { |
263 | printk(KERN_ERR "%s: No suitable PCI mapping available.\n", | |
264 | dev->name); | |
265 | rc = -ENODEV; | |
266 | goto err_out; | |
267 | } | |
268 | ||
269 | rc = pci_enable_device(pdev); | |
270 | if (rc) { | |
271 | printk(KERN_ERR "lanstreamer: unable to enable pci device\n"); | |
272 | rc=-EIO; | |
273 | goto err_out; | |
274 | } | |
275 | ||
276 | pci_set_master(pdev); | |
277 | ||
278 | rc = pci_set_mwi(pdev); | |
279 | if (rc) { | |
280 | printk(KERN_ERR "lanstreamer: unable to enable MWI on pci device\n"); | |
281 | goto err_out_disable; | |
282 | } | |
283 | ||
284 | pio_start = pci_resource_start(pdev, 0); | |
285 | pio_end = pci_resource_end(pdev, 0); | |
286 | pio_flags = pci_resource_flags(pdev, 0); | |
287 | pio_len = pci_resource_len(pdev, 0); | |
288 | ||
289 | mmio_start = pci_resource_start(pdev, 1); | |
290 | mmio_end = pci_resource_end(pdev, 1); | |
291 | mmio_flags = pci_resource_flags(pdev, 1); | |
292 | mmio_len = pci_resource_len(pdev, 1); | |
293 | ||
294 | #if STREAMER_DEBUG | |
295 | printk("lanstreamer: pio_start %x pio_end %x pio_len %x pio_flags %x\n", | |
296 | pio_start, pio_end, pio_len, pio_flags); | |
297 | printk("lanstreamer: mmio_start %x mmio_end %x mmio_len %x mmio_flags %x\n", | |
298 | mmio_start, mmio_end, mmio_flags, mmio_len); | |
299 | #endif | |
300 | ||
301 | if (!request_region(pio_start, pio_len, "lanstreamer")) { | |
302 | printk(KERN_ERR "lanstreamer: unable to get pci io addr %lx\n", | |
303 | pio_start); | |
304 | rc= -EBUSY; | |
305 | goto err_out_mwi; | |
306 | } | |
307 | ||
308 | if (!request_mem_region(mmio_start, mmio_len, "lanstreamer")) { | |
309 | printk(KERN_ERR "lanstreamer: unable to get pci mmio addr %lx\n", | |
310 | mmio_start); | |
311 | rc= -EBUSY; | |
312 | goto err_out_free_pio; | |
313 | } | |
314 | ||
315 | streamer_priv->streamer_mmio=ioremap(mmio_start, mmio_len); | |
316 | if (streamer_priv->streamer_mmio == NULL) { | |
317 | printk(KERN_ERR "lanstreamer: unable to remap MMIO %lx\n", | |
318 | mmio_start); | |
319 | rc= -EIO; | |
320 | goto err_out_free_mmio; | |
321 | } | |
322 | ||
323 | init_waitqueue_head(&streamer_priv->srb_wait); | |
324 | init_waitqueue_head(&streamer_priv->trb_wait); | |
325 | ||
326 | dev->open = &streamer_open; | |
327 | dev->hard_start_xmit = &streamer_xmit; | |
328 | dev->change_mtu = &streamer_change_mtu; | |
329 | dev->stop = &streamer_close; | |
330 | #if STREAMER_IOCTL | |
331 | dev->do_ioctl = &streamer_ioctl; | |
332 | #else | |
333 | dev->do_ioctl = NULL; | |
334 | #endif | |
335 | dev->set_multicast_list = &streamer_set_rx_mode; | |
336 | dev->get_stats = &streamer_get_stats; | |
337 | dev->set_mac_address = &streamer_set_mac_address; | |
338 | dev->irq = pdev->irq; | |
339 | dev->base_addr=pio_start; | |
340 | SET_NETDEV_DEV(dev, &pdev->dev); | |
341 | ||
342 | streamer_priv->streamer_card_name = (char *)pdev->resource[0].name; | |
343 | streamer_priv->pci_dev = pdev; | |
344 | ||
345 | if ((pkt_buf_sz[card_no] < 100) || (pkt_buf_sz[card_no] > 18000)) | |
346 | streamer_priv->pkt_buf_sz = PKT_BUF_SZ; | |
347 | else | |
348 | streamer_priv->pkt_buf_sz = pkt_buf_sz[card_no]; | |
349 | ||
350 | streamer_priv->streamer_ring_speed = ringspeed[card_no]; | |
351 | streamer_priv->streamer_message_level = message_level[card_no]; | |
352 | ||
353 | pci_set_drvdata(pdev, dev); | |
354 | ||
355 | spin_lock_init(&streamer_priv->streamer_lock); | |
356 | ||
357 | pci_read_config_word (pdev, PCI_COMMAND, &pcr); | |
358 | pcr |= PCI_COMMAND_SERR; | |
359 | pci_write_config_word (pdev, PCI_COMMAND, pcr); | |
360 | ||
361 | printk("%s \n", version); | |
362 | printk("%s: %s. I/O at %hx, MMIO at %p, using irq %d\n",dev->name, | |
363 | streamer_priv->streamer_card_name, | |
364 | (unsigned int) dev->base_addr, | |
365 | streamer_priv->streamer_mmio, | |
366 | dev->irq); | |
367 | ||
368 | if (streamer_reset(dev)) | |
369 | goto err_out_unmap; | |
370 | ||
371 | rc = register_netdev(dev); | |
372 | if (rc) | |
373 | goto err_out_unmap; | |
374 | return 0; | |
375 | ||
376 | err_out_unmap: | |
377 | iounmap(streamer_priv->streamer_mmio); | |
378 | err_out_free_mmio: | |
379 | release_mem_region(mmio_start, mmio_len); | |
380 | err_out_free_pio: | |
381 | release_region(pio_start, pio_len); | |
382 | err_out_mwi: | |
383 | pci_clear_mwi(pdev); | |
384 | err_out_disable: | |
385 | pci_disable_device(pdev); | |
386 | err_out: | |
387 | free_netdev(dev); | |
388 | #if STREAMER_DEBUG | |
389 | printk("lanstreamer: Exit error %x\n",rc); | |
390 | #endif | |
391 | return rc; | |
392 | } | |
393 | ||
394 | static void __devexit streamer_remove_one(struct pci_dev *pdev) | |
395 | { | |
396 | struct net_device *dev=pci_get_drvdata(pdev); | |
397 | struct streamer_private *streamer_priv; | |
398 | ||
399 | #if STREAMER_DEBUG | |
400 | printk("lanstreamer::streamer_remove_one entry pdev %p\n",pdev); | |
401 | #endif | |
402 | ||
403 | if (dev == NULL) { | |
404 | printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev is NULL\n"); | |
405 | return; | |
406 | } | |
407 | ||
408 | streamer_priv=dev->priv; | |
409 | if (streamer_priv == NULL) { | |
410 | printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev->priv is NULL\n"); | |
411 | return; | |
412 | } | |
413 | ||
414 | #if STREAMER_NETWORK_MONITOR | |
415 | #ifdef CONFIG_PROC_FS | |
416 | { | |
417 | struct streamer_private **p, **next; | |
418 | ||
419 | for (p = &dev_streamer; *p; p = next) { | |
420 | next = &(*p)->next; | |
421 | if (*p == streamer_priv) { | |
422 | *p = *next; | |
423 | break; | |
424 | } | |
425 | } | |
426 | if (!dev_streamer) | |
427 | remove_proc_entry("net/streamer_tr", NULL); | |
428 | } | |
429 | #endif | |
430 | #endif | |
431 | ||
432 | unregister_netdev(dev); | |
433 | iounmap(streamer_priv->streamer_mmio); | |
434 | release_mem_region(pci_resource_start(pdev, 1), pci_resource_len(pdev,1)); | |
435 | release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev,0)); | |
436 | pci_clear_mwi(pdev); | |
437 | pci_disable_device(pdev); | |
438 | free_netdev(dev); | |
439 | pci_set_drvdata(pdev, NULL); | |
440 | } | |
441 | ||
442 | ||
443 | static int streamer_reset(struct net_device *dev) | |
444 | { | |
445 | struct streamer_private *streamer_priv; | |
446 | __u8 __iomem *streamer_mmio; | |
447 | unsigned long t; | |
448 | unsigned int uaa_addr; | |
449 | struct sk_buff *skb = NULL; | |
450 | __u16 misr; | |
451 | ||
452 | streamer_priv = (struct streamer_private *) dev->priv; | |
453 | streamer_mmio = streamer_priv->streamer_mmio; | |
454 | ||
455 | writew(readw(streamer_mmio + BCTL) | BCTL_SOFTRESET, streamer_mmio + BCTL); | |
456 | t = jiffies; | |
457 | /* Hold soft reset bit for a while */ | |
4f2ad811 | 458 | ssleep(1); |
1da177e4 LT |
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)) { | |
4f2ad811 | 514 | msleep_interruptible(100); |
ff5688ae | 515 | if (time_after(jiffies, t + 40 * HZ)) { |
1da177e4 LT |
516 | printk(KERN_ERR |
517 | "IBM PCI tokenring card not responding\n"); | |
518 | release_region(dev->base_addr, STREAMER_IO_SPACE); | |
519 | if (skb) | |
520 | dev_kfree_skb(skb); | |
521 | return -1; | |
522 | } | |
523 | } | |
524 | writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM); | |
525 | misr = readw(streamer_mmio + MISR_RUM); | |
526 | writew(~misr, streamer_mmio + MISR_RUM); | |
527 | ||
528 | if (skb) | |
529 | dev_kfree_skb(skb); /* release skb used for diagnostics */ | |
530 | ||
531 | #if STREAMER_DEBUG | |
532 | printk("LAPWWO: %x, LAPA: %x LAPE: %x\n", | |
533 | readw(streamer_mmio + LAPWWO), readw(streamer_mmio + LAPA), | |
534 | readw(streamer_mmio + LAPE)); | |
535 | #endif | |
536 | ||
537 | #if STREAMER_DEBUG | |
538 | { | |
539 | int i; | |
540 | writew(readw(streamer_mmio + LAPWWO), | |
541 | streamer_mmio + LAPA); | |
542 | printk("initialization response srb dump: "); | |
543 | for (i = 0; i < 10; i++) | |
544 | printk("%x:", | |
545 | ntohs(readw(streamer_mmio + LAPDINC))); | |
546 | printk("\n"); | |
547 | } | |
548 | #endif | |
549 | ||
550 | writew(readw(streamer_mmio + LAPWWO) + 6, streamer_mmio + LAPA); | |
551 | if (readw(streamer_mmio + LAPD)) { | |
552 | printk(KERN_INFO "tokenring card initialization failed. errorcode : %x\n", | |
553 | ntohs(readw(streamer_mmio + LAPD))); | |
554 | release_region(dev->base_addr, STREAMER_IO_SPACE); | |
555 | return -1; | |
556 | } | |
557 | ||
558 | writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA); | |
559 | uaa_addr = ntohs(readw(streamer_mmio + LAPDINC)); | |
560 | readw(streamer_mmio + LAPDINC); /* skip over Level.Addr field */ | |
561 | streamer_priv->streamer_addr_table_addr = ntohs(readw(streamer_mmio + LAPDINC)); | |
562 | streamer_priv->streamer_parms_addr = ntohs(readw(streamer_mmio + LAPDINC)); | |
563 | ||
564 | #if STREAMER_DEBUG | |
565 | printk("UAA resides at %x\n", uaa_addr); | |
566 | #endif | |
567 | ||
568 | /* setup uaa area for access with LAPD */ | |
569 | { | |
570 | int i; | |
571 | __u16 addr; | |
572 | writew(uaa_addr, streamer_mmio + LAPA); | |
573 | for (i = 0; i < 6; i += 2) { | |
574 | addr=ntohs(readw(streamer_mmio+LAPDINC)); | |
575 | dev->dev_addr[i]= (addr >> 8) & 0xff; | |
576 | dev->dev_addr[i+1]= addr & 0xff; | |
577 | } | |
578 | #if STREAMER_DEBUG | |
579 | printk("Adapter address: "); | |
580 | for (i = 0; i < 6; i++) { | |
581 | printk("%02x:", dev->dev_addr[i]); | |
582 | } | |
583 | printk("\n"); | |
584 | #endif | |
585 | } | |
586 | return 0; | |
587 | } | |
588 | ||
589 | static int streamer_open(struct net_device *dev) | |
590 | { | |
591 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
592 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
593 | unsigned long flags; | |
594 | char open_error[255]; | |
595 | int i, open_finished = 1; | |
596 | __u16 srb_word; | |
597 | __u16 srb_open; | |
598 | int rc; | |
599 | ||
600 | if (readw(streamer_mmio+BMCTL_SUM) & BMCTL_RX_ENABLED) { | |
601 | rc=streamer_reset(dev); | |
602 | } | |
603 | ||
1fb9df5d | 604 | if (request_irq(dev->irq, &streamer_interrupt, IRQF_SHARED, "lanstreamer", dev)) { |
1da177e4 LT |
605 | return -EAGAIN; |
606 | } | |
607 | #if STREAMER_DEBUG | |
608 | printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM)); | |
609 | printk("pending ints: %x\n", readw(streamer_mmio + SISR)); | |
610 | #endif | |
611 | ||
612 | writew(SISR_MI | SISR_SRB_REPLY, streamer_mmio + SISR_MASK); /* more ints later, doesn't stop arb cmd interrupt */ | |
613 | writew(LISR_LIE, streamer_mmio + LISR); /* more ints later */ | |
614 | ||
615 | /* adapter is closed, so SRB is pointed to by LAPWWO */ | |
616 | writew(readw(streamer_mmio + LAPWWO), streamer_mmio + LAPA); | |
617 | ||
618 | #if STREAMER_DEBUG | |
619 | printk("LAPWWO: %x, LAPA: %x\n", readw(streamer_mmio + LAPWWO), | |
620 | readw(streamer_mmio + LAPA)); | |
621 | printk("LAPE: %x\n", readw(streamer_mmio + LAPE)); | |
622 | printk("SISR Mask = %04x\n", readw(streamer_mmio + SISR_MASK)); | |
623 | #endif | |
624 | do { | |
625 | int i; | |
626 | ||
627 | for (i = 0; i < SRB_COMMAND_SIZE; i += 2) { | |
628 | writew(0, streamer_mmio + LAPDINC); | |
629 | } | |
630 | ||
631 | writew(readw(streamer_mmio+LAPWWO),streamer_mmio+LAPA); | |
632 | writew(htons(SRB_OPEN_ADAPTER<<8),streamer_mmio+LAPDINC) ; /* open */ | |
633 | writew(htons(STREAMER_CLEAR_RET_CODE<<8),streamer_mmio+LAPDINC); | |
634 | writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC); | |
635 | ||
636 | writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA); | |
637 | #if STREAMER_NETWORK_MONITOR | |
638 | /* If Network Monitor, instruct card to copy MAC frames through the ARB */ | |
639 | 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 */ | |
640 | #else | |
641 | writew(htons(OPEN_ADAPTER_ENABLE_FDX), streamer_mmio + LAPDINC); /* Offset 8 word contains Open.Options */ | |
642 | #endif | |
643 | ||
644 | if (streamer_priv->streamer_laa[0]) { | |
645 | writew(readw(streamer_mmio + LAPWWO) + 12, streamer_mmio + LAPA); | |
646 | writew(htons((streamer_priv->streamer_laa[0] << 8) | | |
647 | streamer_priv->streamer_laa[1]),streamer_mmio+LAPDINC); | |
648 | writew(htons((streamer_priv->streamer_laa[2] << 8) | | |
649 | streamer_priv->streamer_laa[3]),streamer_mmio+LAPDINC); | |
650 | writew(htons((streamer_priv->streamer_laa[4] << 8) | | |
651 | streamer_priv->streamer_laa[5]),streamer_mmio+LAPDINC); | |
652 | memcpy(dev->dev_addr, streamer_priv->streamer_laa, dev->addr_len); | |
653 | } | |
654 | ||
655 | /* save off srb open offset */ | |
656 | srb_open = readw(streamer_mmio + LAPWWO); | |
657 | #if STREAMER_DEBUG | |
658 | writew(readw(streamer_mmio + LAPWWO), | |
659 | streamer_mmio + LAPA); | |
660 | printk("srb open request: \n"); | |
661 | for (i = 0; i < 16; i++) { | |
662 | printk("%x:", ntohs(readw(streamer_mmio + LAPDINC))); | |
663 | } | |
664 | printk("\n"); | |
665 | #endif | |
666 | spin_lock_irqsave(&streamer_priv->streamer_lock, flags); | |
667 | streamer_priv->srb_queued = 1; | |
668 | ||
669 | /* signal solo that SRB command has been issued */ | |
670 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
671 | spin_unlock_irqrestore(&streamer_priv->streamer_lock, flags); | |
672 | ||
673 | while (streamer_priv->srb_queued) { | |
674 | interruptible_sleep_on_timeout(&streamer_priv->srb_wait, 5 * HZ); | |
675 | if (signal_pending(current)) { | |
676 | printk(KERN_WARNING "%s: SRB timed out.\n", dev->name); | |
677 | printk(KERN_WARNING "SISR=%x MISR=%x, LISR=%x\n", | |
678 | readw(streamer_mmio + SISR), | |
679 | readw(streamer_mmio + MISR_RUM), | |
680 | readw(streamer_mmio + LISR)); | |
681 | streamer_priv->srb_queued = 0; | |
682 | break; | |
683 | } | |
684 | } | |
685 | ||
686 | #if STREAMER_DEBUG | |
687 | printk("SISR_MASK: %x\n", readw(streamer_mmio + SISR_MASK)); | |
688 | printk("srb open response:\n"); | |
689 | writew(srb_open, streamer_mmio + LAPA); | |
690 | for (i = 0; i < 10; i++) { | |
691 | printk("%x:", | |
692 | ntohs(readw(streamer_mmio + LAPDINC))); | |
693 | } | |
694 | #endif | |
695 | ||
696 | /* If we get the same return response as we set, the interrupt wasn't raised and the open | |
697 | * timed out. | |
698 | */ | |
699 | writew(srb_open + 2, streamer_mmio + LAPA); | |
700 | srb_word = ntohs(readw(streamer_mmio + LAPD)) >> 8; | |
701 | if (srb_word == STREAMER_CLEAR_RET_CODE) { | |
702 | printk(KERN_WARNING "%s: Adapter Open time out or error.\n", | |
703 | dev->name); | |
704 | return -EIO; | |
705 | } | |
706 | ||
707 | if (srb_word != 0) { | |
708 | if (srb_word == 0x07) { | |
709 | if (!streamer_priv->streamer_ring_speed && open_finished) { /* Autosense , first time around */ | |
710 | printk(KERN_WARNING "%s: Retrying at different ring speed \n", | |
711 | dev->name); | |
712 | open_finished = 0; | |
713 | } else { | |
714 | __u16 error_code; | |
715 | ||
716 | writew(srb_open + 6, streamer_mmio + LAPA); | |
717 | error_code = ntohs(readw(streamer_mmio + LAPD)); | |
718 | strcpy(open_error, open_maj_error[(error_code & 0xf0) >> 4]); | |
719 | strcat(open_error, " - "); | |
720 | strcat(open_error, open_min_error[(error_code & 0x0f)]); | |
721 | ||
722 | if (!streamer_priv->streamer_ring_speed | |
723 | && ((error_code & 0x0f) == 0x0d)) | |
724 | { | |
725 | printk(KERN_WARNING "%s: Tried to autosense ring speed with no monitors present\n", dev->name); | |
726 | printk(KERN_WARNING "%s: Please try again with a specified ring speed \n", dev->name); | |
727 | free_irq(dev->irq, dev); | |
728 | return -EIO; | |
729 | } | |
730 | ||
731 | printk(KERN_WARNING "%s: %s\n", | |
732 | dev->name, open_error); | |
733 | free_irq(dev->irq, dev); | |
734 | return -EIO; | |
735 | ||
736 | } /* if autosense && open_finished */ | |
737 | } else { | |
738 | printk(KERN_WARNING "%s: Bad OPEN response: %x\n", | |
739 | dev->name, srb_word); | |
740 | free_irq(dev->irq, dev); | |
741 | return -EIO; | |
742 | } | |
743 | } else | |
744 | open_finished = 1; | |
745 | } while (!(open_finished)); /* Will only loop if ring speed mismatch re-open attempted && autosense is on */ | |
746 | ||
747 | writew(srb_open + 18, streamer_mmio + LAPA); | |
748 | srb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
749 | if (srb_word & (1 << 3)) | |
750 | if (streamer_priv->streamer_message_level) | |
751 | printk(KERN_INFO "%s: Opened in FDX Mode\n", dev->name); | |
752 | ||
753 | if (srb_word & 1) | |
754 | streamer_priv->streamer_ring_speed = 16; | |
755 | else | |
756 | streamer_priv->streamer_ring_speed = 4; | |
757 | ||
758 | if (streamer_priv->streamer_message_level) | |
759 | printk(KERN_INFO "%s: Opened in %d Mbps mode\n", | |
760 | dev->name, | |
761 | streamer_priv->streamer_ring_speed); | |
762 | ||
763 | writew(srb_open + 8, streamer_mmio + LAPA); | |
764 | streamer_priv->asb = ntohs(readw(streamer_mmio + LAPDINC)); | |
765 | streamer_priv->srb = ntohs(readw(streamer_mmio + LAPDINC)); | |
766 | streamer_priv->arb = ntohs(readw(streamer_mmio + LAPDINC)); | |
767 | readw(streamer_mmio + LAPDINC); /* offset 14 word is rsvd */ | |
768 | streamer_priv->trb = ntohs(readw(streamer_mmio + LAPDINC)); | |
769 | ||
770 | streamer_priv->streamer_receive_options = 0x00; | |
771 | streamer_priv->streamer_copy_all_options = 0; | |
772 | ||
773 | /* setup rx ring */ | |
774 | /* enable rx channel */ | |
775 | writew(~BMCTL_RX_DIS, streamer_mmio + BMCTL_RUM); | |
776 | ||
777 | /* setup rx descriptors */ | |
778 | streamer_priv->streamer_rx_ring= | |
779 | kmalloc( sizeof(struct streamer_rx_desc)* | |
780 | STREAMER_RX_RING_SIZE,GFP_KERNEL); | |
781 | if (!streamer_priv->streamer_rx_ring) { | |
782 | printk(KERN_WARNING "%s ALLOC of streamer rx ring FAILED!!\n",dev->name); | |
783 | return -EIO; | |
784 | } | |
785 | ||
786 | for (i = 0; i < STREAMER_RX_RING_SIZE; i++) { | |
787 | struct sk_buff *skb; | |
788 | ||
789 | skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); | |
790 | if (skb == NULL) | |
791 | break; | |
792 | ||
793 | skb->dev = dev; | |
794 | ||
795 | streamer_priv->streamer_rx_ring[i].forward = | |
796 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[i + 1], | |
797 | sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)); | |
798 | streamer_priv->streamer_rx_ring[i].status = 0; | |
799 | streamer_priv->streamer_rx_ring[i].buffer = | |
800 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, | |
801 | streamer_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE)); | |
802 | streamer_priv->streamer_rx_ring[i].framelen_buflen = streamer_priv->pkt_buf_sz; | |
803 | streamer_priv->rx_ring_skb[i] = skb; | |
804 | } | |
805 | streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1].forward = | |
806 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0], | |
807 | sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)); | |
808 | ||
809 | if (i == 0) { | |
810 | printk(KERN_WARNING "%s: Not enough memory to allocate rx buffers. Adapter disabled\n", dev->name); | |
811 | free_irq(dev->irq, dev); | |
812 | return -EIO; | |
813 | } | |
814 | ||
815 | streamer_priv->rx_ring_last_received = STREAMER_RX_RING_SIZE - 1; /* last processed rx status */ | |
816 | ||
817 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0], | |
818 | sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)), | |
819 | streamer_mmio + RXBDA); | |
820 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1], | |
821 | sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)), | |
822 | streamer_mmio + RXLBDA); | |
823 | ||
824 | /* set bus master interrupt event mask */ | |
825 | writew(MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK); | |
826 | ||
827 | ||
828 | /* setup tx ring */ | |
829 | streamer_priv->streamer_tx_ring=kmalloc(sizeof(struct streamer_tx_desc)* | |
830 | STREAMER_TX_RING_SIZE,GFP_KERNEL); | |
831 | if (!streamer_priv->streamer_tx_ring) { | |
832 | printk(KERN_WARNING "%s ALLOC of streamer_tx_ring FAILED\n",dev->name); | |
833 | return -EIO; | |
834 | } | |
835 | ||
836 | writew(~BMCTL_TX2_DIS, streamer_mmio + BMCTL_RUM); /* Enables TX channel 2 */ | |
837 | for (i = 0; i < STREAMER_TX_RING_SIZE; i++) { | |
838 | streamer_priv->streamer_tx_ring[i].forward = cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
839 | &streamer_priv->streamer_tx_ring[i + 1], | |
840 | sizeof(struct streamer_tx_desc), | |
841 | PCI_DMA_TODEVICE)); | |
842 | streamer_priv->streamer_tx_ring[i].status = 0; | |
843 | streamer_priv->streamer_tx_ring[i].bufcnt_framelen = 0; | |
844 | streamer_priv->streamer_tx_ring[i].buffer = 0; | |
845 | streamer_priv->streamer_tx_ring[i].buflen = 0; | |
846 | streamer_priv->streamer_tx_ring[i].rsvd1 = 0; | |
847 | streamer_priv->streamer_tx_ring[i].rsvd2 = 0; | |
848 | streamer_priv->streamer_tx_ring[i].rsvd3 = 0; | |
849 | } | |
850 | streamer_priv->streamer_tx_ring[STREAMER_TX_RING_SIZE - 1].forward = | |
851 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_tx_ring[0], | |
852 | sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE)); | |
853 | ||
854 | streamer_priv->free_tx_ring_entries = STREAMER_TX_RING_SIZE; | |
855 | streamer_priv->tx_ring_free = 0; /* next entry in tx ring to use */ | |
856 | streamer_priv->tx_ring_last_status = STREAMER_TX_RING_SIZE - 1; | |
857 | ||
858 | /* set Busmaster interrupt event mask (handle receives on interrupt only */ | |
859 | writew(MISR_TX2_EOF | MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK); | |
860 | /* set system event interrupt mask */ | |
861 | writew(SISR_ADAPTER_CHECK | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_ASB_FREE, streamer_mmio + SISR_MASK_SUM); | |
862 | ||
863 | #if STREAMER_DEBUG | |
864 | printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM)); | |
865 | printk("SISR MASK: %x\n", readw(streamer_mmio + SISR_MASK)); | |
866 | #endif | |
867 | ||
868 | #if STREAMER_NETWORK_MONITOR | |
869 | ||
870 | writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA); | |
871 | printk("%s: Node Address: %04x:%04x:%04x\n", dev->name, | |
872 | ntohs(readw(streamer_mmio + LAPDINC)), | |
873 | ntohs(readw(streamer_mmio + LAPDINC)), | |
874 | ntohs(readw(streamer_mmio + LAPDINC))); | |
875 | readw(streamer_mmio + LAPDINC); | |
876 | readw(streamer_mmio + LAPDINC); | |
877 | printk("%s: Functional Address: %04x:%04x\n", dev->name, | |
878 | ntohs(readw(streamer_mmio + LAPDINC)), | |
879 | ntohs(readw(streamer_mmio + LAPDINC))); | |
880 | ||
881 | writew(streamer_priv->streamer_parms_addr + 4, | |
882 | streamer_mmio + LAPA); | |
883 | printk("%s: NAUN Address: %04x:%04x:%04x\n", dev->name, | |
884 | ntohs(readw(streamer_mmio + LAPDINC)), | |
885 | ntohs(readw(streamer_mmio + LAPDINC)), | |
886 | ntohs(readw(streamer_mmio + LAPDINC))); | |
887 | #endif | |
888 | ||
889 | netif_start_queue(dev); | |
890 | netif_carrier_on(dev); | |
891 | return 0; | |
892 | } | |
893 | ||
894 | /* | |
895 | * When we enter the rx routine we do not know how many frames have been | |
896 | * queued on the rx channel. Therefore we start at the next rx status | |
897 | * position and travel around the receive ring until we have completed | |
898 | * all the frames. | |
899 | * | |
900 | * This means that we may process the frame before we receive the end | |
901 | * of frame interrupt. This is why we always test the status instead | |
902 | * of blindly processing the next frame. | |
903 | * | |
904 | */ | |
905 | static void streamer_rx(struct net_device *dev) | |
906 | { | |
907 | struct streamer_private *streamer_priv = | |
908 | (struct streamer_private *) dev->priv; | |
909 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
910 | struct streamer_rx_desc *rx_desc; | |
911 | int rx_ring_last_received, length, frame_length, buffer_cnt = 0; | |
912 | struct sk_buff *skb, *skb2; | |
913 | ||
914 | /* setup the next rx descriptor to be received */ | |
915 | rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)]; | |
916 | rx_ring_last_received = streamer_priv->rx_ring_last_received; | |
917 | ||
918 | while (rx_desc->status & 0x01000000) { /* While processed descriptors are available */ | |
919 | if (rx_ring_last_received != streamer_priv->rx_ring_last_received) | |
920 | { | |
921 | printk(KERN_WARNING "RX Error 1 rx_ring_last_received not the same %x %x\n", | |
922 | rx_ring_last_received, streamer_priv->rx_ring_last_received); | |
923 | } | |
924 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); | |
925 | rx_ring_last_received = streamer_priv->rx_ring_last_received; | |
926 | ||
927 | length = rx_desc->framelen_buflen & 0xffff; /* buffer length */ | |
928 | frame_length = (rx_desc->framelen_buflen >> 16) & 0xffff; | |
929 | ||
930 | if (rx_desc->status & 0x7E830000) { /* errors */ | |
931 | if (streamer_priv->streamer_message_level) { | |
932 | printk(KERN_WARNING "%s: Rx Error %x \n", | |
933 | dev->name, rx_desc->status); | |
934 | } | |
935 | } else { /* received without errors */ | |
936 | if (rx_desc->status & 0x80000000) { /* frame complete */ | |
937 | buffer_cnt = 1; | |
938 | skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); | |
939 | } else { | |
940 | skb = dev_alloc_skb(frame_length); | |
941 | } | |
942 | ||
943 | if (skb == NULL) | |
944 | { | |
945 | printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers. \n", dev->name); | |
946 | streamer_priv->streamer_stats.rx_dropped++; | |
947 | } else { /* we allocated an skb OK */ | |
948 | skb->dev = dev; | |
949 | ||
950 | if (buffer_cnt == 1) { | |
951 | /* release the DMA mapping */ | |
952 | pci_unmap_single(streamer_priv->pci_dev, | |
953 | le32_to_cpu(streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer), | |
954 | streamer_priv->pkt_buf_sz, | |
955 | PCI_DMA_FROMDEVICE); | |
956 | skb2 = streamer_priv->rx_ring_skb[rx_ring_last_received]; | |
957 | #if STREAMER_DEBUG_PACKETS | |
958 | { | |
959 | int i; | |
960 | printk("streamer_rx packet print: skb->data2 %p skb->head %p\n", skb2->data, skb2->head); | |
961 | for (i = 0; i < frame_length; i++) | |
962 | { | |
963 | printk("%x:", skb2->data[i]); | |
964 | if (((i + 1) % 16) == 0) | |
965 | printk("\n"); | |
966 | } | |
967 | printk("\n"); | |
968 | } | |
969 | #endif | |
970 | skb_put(skb2, length); | |
971 | skb2->protocol = tr_type_trans(skb2, dev); | |
972 | /* recycle this descriptor */ | |
973 | streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0; | |
974 | streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz; | |
975 | streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer = | |
976 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, streamer_priv->pkt_buf_sz, | |
977 | PCI_DMA_FROMDEVICE)); | |
978 | streamer_priv->rx_ring_skb[rx_ring_last_received] = skb; | |
979 | /* place recycled descriptor back on the adapter */ | |
980 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
981 | &streamer_priv->streamer_rx_ring[rx_ring_last_received], | |
982 | sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)), | |
983 | streamer_mmio + RXLBDA); | |
984 | /* pass the received skb up to the protocol */ | |
985 | netif_rx(skb2); | |
986 | } else { | |
987 | do { /* Walk the buffers */ | |
988 | pci_unmap_single(streamer_priv->pci_dev, le32_to_cpu(rx_desc->buffer), length, PCI_DMA_FROMDEVICE), | |
989 | memcpy(skb_put(skb, length), (void *)rx_desc->buffer, length); /* copy this fragment */ | |
990 | streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0; | |
991 | streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz; | |
992 | ||
993 | /* give descriptor back to the adapter */ | |
994 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
995 | &streamer_priv->streamer_rx_ring[rx_ring_last_received], | |
996 | length, PCI_DMA_FROMDEVICE)), | |
997 | streamer_mmio + RXLBDA); | |
998 | ||
999 | if (rx_desc->status & 0x80000000) | |
1000 | break; /* this descriptor completes the frame */ | |
1001 | ||
1002 | /* else get the next pending descriptor */ | |
1003 | if (rx_ring_last_received!= streamer_priv->rx_ring_last_received) | |
1004 | { | |
1005 | printk("RX Error rx_ring_last_received not the same %x %x\n", | |
1006 | rx_ring_last_received, | |
1007 | streamer_priv->rx_ring_last_received); | |
1008 | } | |
1009 | rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE-1)]; | |
1010 | ||
1011 | length = rx_desc->framelen_buflen & 0xffff; /* buffer length */ | |
1012 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE - 1); | |
1013 | rx_ring_last_received = streamer_priv->rx_ring_last_received; | |
1014 | } while (1); | |
1015 | ||
1016 | skb->protocol = tr_type_trans(skb, dev); | |
1017 | /* send up to the protocol */ | |
1018 | netif_rx(skb); | |
1019 | } | |
1020 | dev->last_rx = jiffies; | |
1021 | streamer_priv->streamer_stats.rx_packets++; | |
1022 | streamer_priv->streamer_stats.rx_bytes += length; | |
1023 | } /* if skb == null */ | |
1024 | } /* end received without errors */ | |
1025 | ||
1026 | /* try the next one */ | |
1027 | rx_desc = &streamer_priv->streamer_rx_ring[(rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)]; | |
1028 | } /* end for all completed rx descriptors */ | |
1029 | } | |
1030 | ||
1031 | static irqreturn_t streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1032 | { | |
1033 | struct net_device *dev = (struct net_device *) dev_id; | |
1034 | struct streamer_private *streamer_priv = | |
1035 | (struct streamer_private *) dev->priv; | |
1036 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1037 | __u16 sisr; | |
1038 | __u16 misr; | |
1039 | u8 max_intr = MAX_INTR; | |
1040 | ||
1041 | spin_lock(&streamer_priv->streamer_lock); | |
1042 | sisr = readw(streamer_mmio + SISR); | |
1043 | ||
1044 | while((sisr & (SISR_MI | SISR_SRB_REPLY | SISR_ADAPTER_CHECK | SISR_ASB_FREE | | |
1045 | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_PAR_ERR | SISR_SERR_ERR)) | |
1046 | && (max_intr > 0)) { | |
1047 | ||
1048 | if(sisr & SISR_PAR_ERR) { | |
1049 | writew(~SISR_PAR_ERR, streamer_mmio + SISR_RUM); | |
1050 | (void)readw(streamer_mmio + SISR_RUM); | |
1051 | } | |
1052 | ||
1053 | else if(sisr & SISR_SERR_ERR) { | |
1054 | writew(~SISR_SERR_ERR, streamer_mmio + SISR_RUM); | |
1055 | (void)readw(streamer_mmio + SISR_RUM); | |
1056 | } | |
1057 | ||
1058 | else if(sisr & SISR_MI) { | |
1059 | misr = readw(streamer_mmio + MISR_RUM); | |
1060 | ||
1061 | if (misr & MISR_TX2_EOF) { | |
1062 | while(streamer_priv->streamer_tx_ring[(streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1)].status) { | |
1063 | streamer_priv->tx_ring_last_status = (streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1); | |
1064 | streamer_priv->free_tx_ring_entries++; | |
1065 | streamer_priv->streamer_stats.tx_bytes += streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]->len; | |
1066 | streamer_priv->streamer_stats.tx_packets++; | |
1067 | dev_kfree_skb_irq(streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]); | |
1068 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buffer = 0xdeadbeef; | |
1069 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].status = 0; | |
1070 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].bufcnt_framelen = 0; | |
1071 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buflen = 0; | |
1072 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd1 = 0; | |
1073 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd2 = 0; | |
1074 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd3 = 0; | |
1075 | } | |
1076 | netif_wake_queue(dev); | |
1077 | } | |
1078 | ||
1079 | if (misr & MISR_RX_EOF) { | |
1080 | streamer_rx(dev); | |
1081 | } | |
1082 | /* MISR_RX_EOF */ | |
1083 | ||
1084 | if (misr & MISR_RX_NOBUF) { | |
1085 | /* According to the documentation, we don't have to do anything, | |
1086 | * but trapping it keeps it out of /var/log/messages. | |
1087 | */ | |
1088 | } /* SISR_RX_NOBUF */ | |
1089 | ||
1090 | writew(~misr, streamer_mmio + MISR_RUM); | |
1091 | (void)readw(streamer_mmio + MISR_RUM); | |
1092 | } | |
1093 | ||
1094 | else if (sisr & SISR_SRB_REPLY) { | |
1095 | if (streamer_priv->srb_queued == 1) { | |
1096 | wake_up_interruptible(&streamer_priv->srb_wait); | |
1097 | } else if (streamer_priv->srb_queued == 2) { | |
1098 | streamer_srb_bh(dev); | |
1099 | } | |
1100 | streamer_priv->srb_queued = 0; | |
1101 | ||
1102 | writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM); | |
1103 | (void)readw(streamer_mmio + SISR_RUM); | |
1104 | } | |
1105 | ||
1106 | else if (sisr & SISR_ADAPTER_CHECK) { | |
1107 | printk(KERN_WARNING "%s: Adapter Check Interrupt Raised, 8 bytes of information follow:\n", dev->name); | |
1108 | writel(readl(streamer_mmio + LAPWWO), streamer_mmio + LAPA); | |
1109 | printk(KERN_WARNING "%s: Words %x:%x:%x:%x:\n", | |
1110 | dev->name, readw(streamer_mmio + LAPDINC), | |
1111 | ntohs(readw(streamer_mmio + LAPDINC)), | |
1112 | ntohs(readw(streamer_mmio + LAPDINC)), | |
1113 | ntohs(readw(streamer_mmio + LAPDINC))); | |
1114 | netif_stop_queue(dev); | |
1115 | netif_carrier_off(dev); | |
1116 | printk(KERN_WARNING "%s: Adapter must be manually reset.\n", dev->name); | |
1117 | } | |
1118 | ||
1119 | /* SISR_ADAPTER_CHECK */ | |
1120 | else if (sisr & SISR_ASB_FREE) { | |
1121 | /* Wake up anything that is waiting for the asb response */ | |
1122 | if (streamer_priv->asb_queued) { | |
1123 | streamer_asb_bh(dev); | |
1124 | } | |
1125 | writew(~SISR_ASB_FREE, streamer_mmio + SISR_RUM); | |
1126 | (void)readw(streamer_mmio + SISR_RUM); | |
1127 | } | |
1128 | /* SISR_ASB_FREE */ | |
1129 | else if (sisr & SISR_ARB_CMD) { | |
1130 | streamer_arb_cmd(dev); | |
1131 | writew(~SISR_ARB_CMD, streamer_mmio + SISR_RUM); | |
1132 | (void)readw(streamer_mmio + SISR_RUM); | |
1133 | } | |
1134 | /* SISR_ARB_CMD */ | |
1135 | else if (sisr & SISR_TRB_REPLY) { | |
1136 | /* Wake up anything that is waiting for the trb response */ | |
1137 | if (streamer_priv->trb_queued) { | |
1138 | wake_up_interruptible(&streamer_priv-> | |
1139 | trb_wait); | |
1140 | } | |
1141 | streamer_priv->trb_queued = 0; | |
1142 | writew(~SISR_TRB_REPLY, streamer_mmio + SISR_RUM); | |
1143 | (void)readw(streamer_mmio + SISR_RUM); | |
1144 | } | |
1145 | /* SISR_TRB_REPLY */ | |
1146 | ||
1147 | sisr = readw(streamer_mmio + SISR); | |
1148 | max_intr--; | |
1149 | } /* while() */ | |
1150 | ||
1151 | spin_unlock(&streamer_priv->streamer_lock) ; | |
1152 | return IRQ_HANDLED; | |
1153 | } | |
1154 | ||
1155 | static int streamer_xmit(struct sk_buff *skb, struct net_device *dev) | |
1156 | { | |
1157 | struct streamer_private *streamer_priv = | |
1158 | (struct streamer_private *) dev->priv; | |
1159 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1160 | unsigned long flags ; | |
1161 | ||
1162 | spin_lock_irqsave(&streamer_priv->streamer_lock, flags); | |
1163 | ||
1164 | if (streamer_priv->free_tx_ring_entries) { | |
1165 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].status = 0; | |
1166 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].bufcnt_framelen = 0x00020000 | skb->len; | |
1167 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buffer = | |
1168 | cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE)); | |
1169 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd1 = skb->len; | |
1170 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd2 = 0; | |
1171 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd3 = 0; | |
1172 | streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buflen = skb->len; | |
1173 | ||
1174 | streamer_priv->tx_ring_skb[streamer_priv->tx_ring_free] = skb; | |
1175 | streamer_priv->free_tx_ring_entries--; | |
1176 | #if STREAMER_DEBUG_PACKETS | |
1177 | { | |
1178 | int i; | |
1179 | printk("streamer_xmit packet print:\n"); | |
1180 | for (i = 0; i < skb->len; i++) { | |
1181 | printk("%x:", skb->data[i]); | |
1182 | if (((i + 1) % 16) == 0) | |
1183 | printk("\n"); | |
1184 | } | |
1185 | printk("\n"); | |
1186 | } | |
1187 | #endif | |
1188 | ||
1189 | writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, | |
1190 | &streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free], | |
1191 | sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE)), | |
1192 | streamer_mmio + TX2LFDA); | |
1193 | (void)readl(streamer_mmio + TX2LFDA); | |
1194 | ||
1195 | streamer_priv->tx_ring_free = (streamer_priv->tx_ring_free + 1) & (STREAMER_TX_RING_SIZE - 1); | |
1196 | spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags); | |
1197 | return 0; | |
1198 | } else { | |
1199 | netif_stop_queue(dev); | |
1200 | spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags); | |
1201 | return 1; | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | ||
1206 | static int streamer_close(struct net_device *dev) | |
1207 | { | |
1208 | struct streamer_private *streamer_priv = | |
1209 | (struct streamer_private *) dev->priv; | |
1210 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1211 | unsigned long flags; | |
1212 | int i; | |
1213 | ||
1214 | netif_stop_queue(dev); | |
1215 | netif_carrier_off(dev); | |
1216 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1217 | writew(htons(SRB_CLOSE_ADAPTER << 8),streamer_mmio+LAPDINC); | |
1218 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1219 | ||
1220 | spin_lock_irqsave(&streamer_priv->streamer_lock, flags); | |
1221 | ||
1222 | streamer_priv->srb_queued = 1; | |
1223 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1224 | ||
1225 | spin_unlock_irqrestore(&streamer_priv->streamer_lock, flags); | |
1226 | ||
1227 | while (streamer_priv->srb_queued) | |
1228 | { | |
1229 | interruptible_sleep_on_timeout(&streamer_priv->srb_wait, | |
1230 | jiffies + 60 * HZ); | |
1231 | if (signal_pending(current)) | |
1232 | { | |
1233 | printk(KERN_WARNING "%s: SRB timed out.\n", dev->name); | |
1234 | printk(KERN_WARNING "SISR=%x MISR=%x LISR=%x\n", | |
1235 | readw(streamer_mmio + SISR), | |
1236 | readw(streamer_mmio + MISR_RUM), | |
1237 | readw(streamer_mmio + LISR)); | |
1238 | streamer_priv->srb_queued = 0; | |
1239 | break; | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); | |
1244 | ||
1245 | for (i = 0; i < STREAMER_RX_RING_SIZE; i++) { | |
1246 | if (streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]) { | |
1247 | dev_kfree_skb(streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]); | |
1248 | } | |
1249 | streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); | |
1250 | } | |
1251 | ||
1252 | /* reset tx/rx fifo's and busmaster logic */ | |
1253 | ||
1254 | /* TBD. Add graceful way to reset the LLC channel without doing a soft reset. | |
1255 | writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL); | |
1256 | udelay(1); | |
1257 | writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); | |
1258 | */ | |
1259 | ||
1260 | #if STREAMER_DEBUG | |
1261 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1262 | printk("srb): "); | |
1263 | for (i = 0; i < 2; i++) { | |
1264 | printk("%x ", ntohs(readw(streamer_mmio + LAPDINC))); | |
1265 | } | |
1266 | printk("\n"); | |
1267 | #endif | |
1268 | free_irq(dev->irq, dev); | |
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | static void streamer_set_rx_mode(struct net_device *dev) | |
1273 | { | |
1274 | struct streamer_private *streamer_priv = | |
1275 | (struct streamer_private *) dev->priv; | |
1276 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1277 | __u8 options = 0; | |
1278 | struct dev_mc_list *dmi; | |
1279 | unsigned char dev_mc_address[5]; | |
1280 | int i; | |
1281 | ||
1282 | writel(streamer_priv->srb, streamer_mmio + LAPA); | |
1283 | options = streamer_priv->streamer_copy_all_options; | |
1284 | ||
1285 | if (dev->flags & IFF_PROMISC) | |
1286 | options |= (3 << 5); /* All LLC and MAC frames, all through the main rx channel */ | |
1287 | else | |
1288 | options &= ~(3 << 5); | |
1289 | ||
1290 | /* Only issue the srb if there is a change in options */ | |
1291 | ||
1292 | if ((options ^ streamer_priv->streamer_copy_all_options)) | |
1293 | { | |
1294 | /* Now to issue the srb command to alter the copy.all.options */ | |
1295 | writew(htons(SRB_MODIFY_RECEIVE_OPTIONS << 8), streamer_mmio+LAPDINC); | |
1296 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1297 | writew(htons((streamer_priv->streamer_receive_options << 8) | options),streamer_mmio+LAPDINC); | |
1298 | writew(htons(0x4a41),streamer_mmio+LAPDINC); | |
1299 | writew(htons(0x4d45),streamer_mmio+LAPDINC); | |
1300 | writew(htons(0x5320),streamer_mmio+LAPDINC); | |
1301 | writew(0x2020, streamer_mmio + LAPDINC); | |
1302 | ||
1303 | streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ | |
1304 | ||
1305 | writel(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1306 | ||
1307 | streamer_priv->streamer_copy_all_options = options; | |
1308 | return; | |
1309 | } | |
1310 | ||
1311 | /* Set the functional addresses we need for multicast */ | |
1312 | writel(streamer_priv->srb,streamer_mmio+LAPA); | |
1313 | dev_mc_address[0] = dev_mc_address[1] = dev_mc_address[2] = dev_mc_address[3] = 0 ; | |
1314 | ||
1315 | for (i=0,dmi=dev->mc_list;i < dev->mc_count; i++,dmi = dmi->next) | |
1316 | { | |
1317 | dev_mc_address[0] |= dmi->dmi_addr[2] ; | |
1318 | dev_mc_address[1] |= dmi->dmi_addr[3] ; | |
1319 | dev_mc_address[2] |= dmi->dmi_addr[4] ; | |
1320 | dev_mc_address[3] |= dmi->dmi_addr[5] ; | |
1321 | } | |
1322 | ||
1323 | writew(htons(SRB_SET_FUNC_ADDRESS << 8),streamer_mmio+LAPDINC); | |
1324 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1325 | writew(0,streamer_mmio+LAPDINC); | |
1326 | writew(htons( (dev_mc_address[0] << 8) | dev_mc_address[1]),streamer_mmio+LAPDINC); | |
1327 | writew(htons( (dev_mc_address[2] << 8) | dev_mc_address[3]),streamer_mmio+LAPDINC); | |
1328 | streamer_priv->srb_queued = 2 ; | |
1329 | writel(LISR_SRB_CMD,streamer_mmio+LISR_SUM); | |
1330 | } | |
1331 | ||
1332 | static void streamer_srb_bh(struct net_device *dev) | |
1333 | { | |
1334 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
1335 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1336 | __u16 srb_word; | |
1337 | ||
1338 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1339 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1340 | ||
1341 | switch (srb_word) { | |
1342 | ||
1343 | /* SRB_MODIFY_RECEIVE_OPTIONS i.e. set_multicast_list options (promiscuous) | |
1344 | * At some point we should do something if we get an error, such as | |
1345 | * resetting the IFF_PROMISC flag in dev | |
1346 | */ | |
1347 | ||
1348 | case SRB_MODIFY_RECEIVE_OPTIONS: | |
1349 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1350 | ||
1351 | switch (srb_word) { | |
1352 | case 0x01: | |
1353 | printk(KERN_WARNING "%s: Unrecognized srb command\n", dev->name); | |
1354 | break; | |
1355 | case 0x04: | |
1356 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1357 | break; | |
1358 | default: | |
1359 | if (streamer_priv->streamer_message_level) | |
1360 | printk(KERN_WARNING "%s: Receive Options Modified to %x,%x\n", | |
1361 | dev->name, | |
1362 | streamer_priv->streamer_copy_all_options, | |
1363 | streamer_priv->streamer_receive_options); | |
1364 | break; | |
1365 | } /* switch srb[2] */ | |
1366 | break; | |
1367 | ||
1368 | ||
1369 | /* SRB_SET_GROUP_ADDRESS - Multicast group setting | |
1370 | */ | |
1371 | case SRB_SET_GROUP_ADDRESS: | |
1372 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1373 | switch (srb_word) { | |
1374 | case 0x00: | |
1375 | break; | |
1376 | case 0x01: | |
1377 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name); | |
1378 | break; | |
1379 | case 0x04: | |
1380 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1381 | break; | |
1382 | case 0x3c: | |
1383 | printk(KERN_WARNING "%s: Group/Functional address indicator bits not set correctly\n", dev->name); | |
1384 | break; | |
1385 | case 0x3e: /* If we ever implement individual multicast addresses, will need to deal with this */ | |
1386 | printk(KERN_WARNING "%s: Group address registers full\n", dev->name); | |
1387 | break; | |
1388 | case 0x55: | |
1389 | printk(KERN_INFO "%s: Group Address already set.\n", dev->name); | |
1390 | break; | |
1391 | default: | |
1392 | break; | |
1393 | } /* switch srb[2] */ | |
1394 | break; | |
1395 | ||
1396 | ||
1397 | /* SRB_RESET_GROUP_ADDRESS - Remove a multicast address from group list | |
1398 | */ | |
1399 | case SRB_RESET_GROUP_ADDRESS: | |
1400 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1401 | switch (srb_word) { | |
1402 | case 0x00: | |
1403 | break; | |
1404 | case 0x01: | |
1405 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1406 | break; | |
1407 | case 0x04: | |
1408 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1409 | break; | |
1410 | case 0x39: /* Must deal with this if individual multicast addresses used */ | |
1411 | printk(KERN_INFO "%s: Group address not found \n", dev->name); | |
1412 | break; | |
1413 | default: | |
1414 | break; | |
1415 | } /* switch srb[2] */ | |
1416 | break; | |
1417 | ||
1418 | ||
1419 | /* SRB_SET_FUNC_ADDRESS - Called by the set_rx_mode | |
1420 | */ | |
1421 | ||
1422 | case SRB_SET_FUNC_ADDRESS: | |
1423 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1424 | switch (srb_word) { | |
1425 | case 0x00: | |
1426 | if (streamer_priv->streamer_message_level) | |
1427 | printk(KERN_INFO "%s: Functional Address Mask Set \n", dev->name); | |
1428 | break; | |
1429 | case 0x01: | |
1430 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1431 | break; | |
1432 | case 0x04: | |
1433 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1434 | break; | |
1435 | default: | |
1436 | break; | |
1437 | } /* switch srb[2] */ | |
1438 | break; | |
1439 | ||
1440 | /* SRB_READ_LOG - Read and reset the adapter error counters | |
1441 | */ | |
1442 | ||
1443 | case SRB_READ_LOG: | |
1444 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1445 | switch (srb_word) { | |
1446 | case 0x00: | |
1447 | { | |
1448 | int i; | |
1449 | if (streamer_priv->streamer_message_level) | |
1450 | printk(KERN_INFO "%s: Read Log command complete\n", dev->name); | |
1451 | printk("Read Log statistics: "); | |
1452 | writew(streamer_priv->srb + 6, | |
1453 | streamer_mmio + LAPA); | |
1454 | for (i = 0; i < 5; i++) { | |
1455 | printk("%x:", ntohs(readw(streamer_mmio + LAPDINC))); | |
1456 | } | |
1457 | printk("\n"); | |
1458 | } | |
1459 | break; | |
1460 | case 0x01: | |
1461 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1462 | break; | |
1463 | case 0x04: | |
1464 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1465 | break; | |
1466 | ||
1467 | } /* switch srb[2] */ | |
1468 | break; | |
1469 | ||
1470 | /* SRB_READ_SR_COUNTERS - Read and reset the source routing bridge related counters */ | |
1471 | ||
1472 | case SRB_READ_SR_COUNTERS: | |
1473 | srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; | |
1474 | switch (srb_word) { | |
1475 | case 0x00: | |
1476 | if (streamer_priv->streamer_message_level) | |
1477 | printk(KERN_INFO "%s: Read Source Routing Counters issued\n", dev->name); | |
1478 | break; | |
1479 | case 0x01: | |
1480 | printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); | |
1481 | break; | |
1482 | case 0x04: | |
1483 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); | |
1484 | break; | |
1485 | default: | |
1486 | break; | |
1487 | } /* switch srb[2] */ | |
1488 | break; | |
1489 | ||
1490 | default: | |
1491 | printk(KERN_WARNING "%s: Unrecognized srb bh return value.\n", dev->name); | |
1492 | break; | |
1493 | } /* switch srb[0] */ | |
1494 | } | |
1495 | ||
1496 | static struct net_device_stats *streamer_get_stats(struct net_device *dev) | |
1497 | { | |
1498 | struct streamer_private *streamer_priv; | |
1499 | streamer_priv = (struct streamer_private *) dev->priv; | |
1500 | return (struct net_device_stats *) &streamer_priv->streamer_stats; | |
1501 | } | |
1502 | ||
1503 | static int streamer_set_mac_address(struct net_device *dev, void *addr) | |
1504 | { | |
1505 | struct sockaddr *saddr = addr; | |
1506 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
1507 | ||
1508 | if (netif_running(dev)) | |
1509 | { | |
1510 | printk(KERN_WARNING "%s: Cannot set mac/laa address while card is open\n", dev->name); | |
1511 | return -EIO; | |
1512 | } | |
1513 | ||
1514 | memcpy(streamer_priv->streamer_laa, saddr->sa_data, dev->addr_len); | |
1515 | ||
1516 | if (streamer_priv->streamer_message_level) { | |
1517 | printk(KERN_INFO "%s: MAC/LAA Set to = %x.%x.%x.%x.%x.%x\n", | |
1518 | dev->name, streamer_priv->streamer_laa[0], | |
1519 | streamer_priv->streamer_laa[1], | |
1520 | streamer_priv->streamer_laa[2], | |
1521 | streamer_priv->streamer_laa[3], | |
1522 | streamer_priv->streamer_laa[4], | |
1523 | streamer_priv->streamer_laa[5]); | |
1524 | } | |
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | static void streamer_arb_cmd(struct net_device *dev) | |
1529 | { | |
1530 | struct streamer_private *streamer_priv = | |
1531 | (struct streamer_private *) dev->priv; | |
1532 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1533 | __u8 header_len; | |
1534 | __u16 frame_len, buffer_len; | |
1535 | struct sk_buff *mac_frame; | |
1536 | __u8 frame_data[256]; | |
1537 | __u16 buff_off; | |
1538 | __u16 lan_status = 0, lan_status_diff; /* Initialize to stop compiler warning */ | |
1539 | __u8 fdx_prot_error; | |
1540 | __u16 next_ptr; | |
1541 | __u16 arb_word; | |
1542 | ||
1543 | #if STREAMER_NETWORK_MONITOR | |
1544 | struct trh_hdr *mac_hdr; | |
1545 | #endif | |
1546 | ||
1547 | writew(streamer_priv->arb, streamer_mmio + LAPA); | |
1548 | arb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
1549 | ||
1550 | if (arb_word == ARB_RECEIVE_DATA) { /* Receive.data, MAC frames */ | |
1551 | writew(streamer_priv->arb + 6, streamer_mmio + LAPA); | |
1552 | streamer_priv->mac_rx_buffer = buff_off = ntohs(readw(streamer_mmio + LAPDINC)); | |
1553 | header_len=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; /* 802.5 Token-Ring Header Length */ | |
1554 | frame_len = ntohs(readw(streamer_mmio + LAPDINC)); | |
1555 | ||
1556 | #if STREAMER_DEBUG | |
1557 | { | |
1558 | int i; | |
1559 | __u16 next; | |
1560 | __u8 status; | |
1561 | __u16 len; | |
1562 | ||
1563 | writew(ntohs(buff_off), streamer_mmio + LAPA); /*setup window to frame data */ | |
1564 | next = htons(readw(streamer_mmio + LAPDINC)); | |
1565 | status = | |
1566 | ntohs(readw(streamer_mmio + LAPDINC)) & 0xff; | |
1567 | len = ntohs(readw(streamer_mmio + LAPDINC)); | |
1568 | ||
1569 | /* print out 1st 14 bytes of frame data */ | |
1570 | for (i = 0; i < 7; i++) { | |
1571 | printk("Loc %d = %04x\n", i, | |
1572 | ntohs(readw | |
1573 | (streamer_mmio + LAPDINC))); | |
1574 | } | |
1575 | ||
1576 | printk("next %04x, fs %02x, len %04x \n", next, | |
1577 | status, len); | |
1578 | } | |
1579 | #endif | |
1580 | if (!(mac_frame = dev_alloc_skb(frame_len))) { | |
1581 | printk(KERN_WARNING "%s: Memory squeeze, dropping frame.\n", | |
1582 | dev->name); | |
1583 | goto drop_frame; | |
1584 | } | |
1585 | /* Walk the buffer chain, creating the frame */ | |
1586 | ||
1587 | do { | |
1588 | int i; | |
1589 | __u16 rx_word; | |
1590 | ||
1591 | writew(htons(buff_off), streamer_mmio + LAPA); /* setup window to frame data */ | |
1592 | next_ptr = ntohs(readw(streamer_mmio + LAPDINC)); | |
1593 | readw(streamer_mmio + LAPDINC); /* read thru status word */ | |
1594 | buffer_len = ntohs(readw(streamer_mmio + LAPDINC)); | |
1595 | ||
1596 | if (buffer_len > 256) | |
1597 | break; | |
1598 | ||
1599 | i = 0; | |
1600 | while (i < buffer_len) { | |
1601 | rx_word=ntohs(readw(streamer_mmio+LAPDINC)); | |
1602 | frame_data[i]=rx_word >> 8; | |
1603 | frame_data[i+1]=rx_word & 0xff; | |
1604 | i += 2; | |
1605 | } | |
1606 | ||
1607 | memcpy(skb_put(mac_frame, buffer_len), | |
1608 | frame_data, buffer_len); | |
1609 | } while (next_ptr && (buff_off = next_ptr)); | |
1610 | ||
1611 | #if STREAMER_NETWORK_MONITOR | |
1612 | printk(KERN_WARNING "%s: Received MAC Frame, details: \n", | |
1613 | dev->name); | |
1614 | mac_hdr = (struct trh_hdr *) mac_frame->data; | |
1615 | printk(KERN_WARNING | |
1616 | "%s: MAC Frame Dest. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", | |
1617 | dev->name, mac_hdr->daddr[0], mac_hdr->daddr[1], | |
1618 | mac_hdr->daddr[2], mac_hdr->daddr[3], | |
1619 | mac_hdr->daddr[4], mac_hdr->daddr[5]); | |
1620 | printk(KERN_WARNING | |
1621 | "%s: MAC Frame Srce. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", | |
1622 | dev->name, mac_hdr->saddr[0], mac_hdr->saddr[1], | |
1623 | mac_hdr->saddr[2], mac_hdr->saddr[3], | |
1624 | mac_hdr->saddr[4], mac_hdr->saddr[5]); | |
1625 | #endif | |
1626 | mac_frame->dev = dev; | |
1627 | mac_frame->protocol = tr_type_trans(mac_frame, dev); | |
1628 | netif_rx(mac_frame); | |
1629 | ||
1630 | /* Now tell the card we have dealt with the received frame */ | |
1631 | drop_frame: | |
1632 | /* Set LISR Bit 1 */ | |
1633 | writel(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM); | |
1634 | ||
1635 | /* Is the ASB free ? */ | |
1636 | ||
1637 | if (!(readl(streamer_priv->streamer_mmio + SISR) & SISR_ASB_FREE)) | |
1638 | { | |
1639 | streamer_priv->asb_queued = 1; | |
1640 | writel(LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); | |
1641 | return; | |
1642 | /* Drop out and wait for the bottom half to be run */ | |
1643 | } | |
1644 | ||
1645 | ||
1646 | writew(streamer_priv->asb, streamer_mmio + LAPA); | |
1647 | writew(htons(ASB_RECEIVE_DATA << 8), streamer_mmio+LAPDINC); | |
1648 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1649 | writew(0, streamer_mmio + LAPDINC); | |
1650 | writew(htons(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD); | |
1651 | ||
1652 | writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); | |
1653 | ||
1654 | streamer_priv->asb_queued = 2; | |
1655 | return; | |
1656 | ||
1657 | } else if (arb_word == ARB_LAN_CHANGE_STATUS) { /* Lan.change.status */ | |
1658 | writew(streamer_priv->arb + 6, streamer_mmio + LAPA); | |
1659 | lan_status = ntohs(readw(streamer_mmio + LAPDINC)); | |
1660 | fdx_prot_error = ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
1661 | ||
1662 | /* Issue ARB Free */ | |
1663 | writew(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM); | |
1664 | ||
1665 | lan_status_diff = (streamer_priv->streamer_lan_status ^ lan_status) & | |
1666 | lan_status; | |
1667 | ||
1668 | if (lan_status_diff & (LSC_LWF | LSC_ARW | LSC_FPE | LSC_RR)) | |
1669 | { | |
1670 | if (lan_status_diff & LSC_LWF) | |
1671 | printk(KERN_WARNING "%s: Short circuit detected on the lobe\n", dev->name); | |
1672 | if (lan_status_diff & LSC_ARW) | |
1673 | printk(KERN_WARNING "%s: Auto removal error\n", dev->name); | |
1674 | if (lan_status_diff & LSC_FPE) | |
1675 | printk(KERN_WARNING "%s: FDX Protocol Error\n", dev->name); | |
1676 | if (lan_status_diff & LSC_RR) | |
1677 | printk(KERN_WARNING "%s: Force remove MAC frame received\n", dev->name); | |
1678 | ||
1679 | /* Adapter has been closed by the hardware */ | |
1680 | ||
1681 | /* reset tx/rx fifo's and busmaster logic */ | |
1682 | ||
1683 | /* @TBD. no llc reset on autostreamer writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL); | |
1684 | udelay(1); | |
1685 | writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); */ | |
1686 | ||
1687 | netif_stop_queue(dev); | |
1688 | netif_carrier_off(dev); | |
1689 | printk(KERN_WARNING "%s: Adapter must be manually reset.\n", dev->name); | |
1690 | } | |
1691 | /* If serious error */ | |
1692 | if (streamer_priv->streamer_message_level) { | |
1693 | if (lan_status_diff & LSC_SIG_LOSS) | |
1694 | printk(KERN_WARNING "%s: No receive signal detected \n", dev->name); | |
1695 | if (lan_status_diff & LSC_HARD_ERR) | |
1696 | printk(KERN_INFO "%s: Beaconing \n", dev->name); | |
1697 | if (lan_status_diff & LSC_SOFT_ERR) | |
1698 | printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame \n", dev->name); | |
1699 | if (lan_status_diff & LSC_TRAN_BCN) | |
1700 | printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n", dev->name); | |
1701 | if (lan_status_diff & LSC_SS) | |
1702 | printk(KERN_INFO "%s: Single Station on the ring \n", dev->name); | |
1703 | if (lan_status_diff & LSC_RING_REC) | |
1704 | printk(KERN_INFO "%s: Ring recovery ongoing\n", dev->name); | |
1705 | if (lan_status_diff & LSC_FDX_MODE) | |
1706 | printk(KERN_INFO "%s: Operating in FDX mode\n", dev->name); | |
1707 | } | |
1708 | ||
1709 | if (lan_status_diff & LSC_CO) { | |
1710 | if (streamer_priv->streamer_message_level) | |
1711 | printk(KERN_INFO "%s: Counter Overflow \n", dev->name); | |
1712 | ||
1713 | /* Issue READ.LOG command */ | |
1714 | ||
1715 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1716 | writew(htons(SRB_READ_LOG << 8),streamer_mmio+LAPDINC); | |
1717 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1718 | writew(0, streamer_mmio + LAPDINC); | |
1719 | streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ | |
1720 | ||
1721 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1722 | } | |
1723 | ||
1724 | if (lan_status_diff & LSC_SR_CO) { | |
1725 | if (streamer_priv->streamer_message_level) | |
1726 | printk(KERN_INFO "%s: Source routing counters overflow\n", dev->name); | |
1727 | ||
1728 | /* Issue a READ.SR.COUNTERS */ | |
1729 | writew(streamer_priv->srb, streamer_mmio + LAPA); | |
1730 | writew(htons(SRB_READ_SR_COUNTERS << 8), | |
1731 | streamer_mmio+LAPDINC); | |
1732 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), | |
1733 | streamer_mmio+LAPDINC); | |
1734 | streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ | |
1735 | writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); | |
1736 | ||
1737 | } | |
1738 | streamer_priv->streamer_lan_status = lan_status; | |
1739 | } /* Lan.change.status */ | |
1740 | else | |
1741 | printk(KERN_WARNING "%s: Unknown arb command \n", dev->name); | |
1742 | } | |
1743 | ||
1744 | static void streamer_asb_bh(struct net_device *dev) | |
1745 | { | |
1746 | struct streamer_private *streamer_priv = | |
1747 | (struct streamer_private *) dev->priv; | |
1748 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1749 | ||
1750 | if (streamer_priv->asb_queued == 1) | |
1751 | { | |
1752 | /* Dropped through the first time */ | |
1753 | ||
1754 | writew(streamer_priv->asb, streamer_mmio + LAPA); | |
1755 | writew(htons(ASB_RECEIVE_DATA << 8),streamer_mmio+LAPDINC); | |
1756 | writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); | |
1757 | writew(0, streamer_mmio + LAPDINC); | |
1758 | writew(htons(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD); | |
1759 | ||
1760 | writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); | |
1761 | streamer_priv->asb_queued = 2; | |
1762 | ||
1763 | return; | |
1764 | } | |
1765 | ||
1766 | if (streamer_priv->asb_queued == 2) { | |
1767 | __u8 rc; | |
1768 | writew(streamer_priv->asb + 2, streamer_mmio + LAPA); | |
1769 | rc=ntohs(readw(streamer_mmio+LAPD)) >> 8; | |
1770 | switch (rc) { | |
1771 | case 0x01: | |
1772 | printk(KERN_WARNING "%s: Unrecognized command code \n", dev->name); | |
1773 | break; | |
1774 | case 0x26: | |
1775 | printk(KERN_WARNING "%s: Unrecognized buffer address \n", dev->name); | |
1776 | break; | |
1777 | case 0xFF: | |
1778 | /* Valid response, everything should be ok again */ | |
1779 | break; | |
1780 | default: | |
1781 | printk(KERN_WARNING "%s: Invalid return code in asb\n", dev->name); | |
1782 | break; | |
1783 | } | |
1784 | } | |
1785 | streamer_priv->asb_queued = 0; | |
1786 | } | |
1787 | ||
1788 | static int streamer_change_mtu(struct net_device *dev, int mtu) | |
1789 | { | |
1790 | struct streamer_private *streamer_priv = | |
1791 | (struct streamer_private *) dev->priv; | |
1792 | __u16 max_mtu; | |
1793 | ||
1794 | if (streamer_priv->streamer_ring_speed == 4) | |
1795 | max_mtu = 4500; | |
1796 | else | |
1797 | max_mtu = 18000; | |
1798 | ||
1799 | if (mtu > max_mtu) | |
1800 | return -EINVAL; | |
1801 | if (mtu < 100) | |
1802 | return -EINVAL; | |
1803 | ||
1804 | dev->mtu = mtu; | |
1805 | streamer_priv->pkt_buf_sz = mtu + TR_HLEN; | |
1806 | ||
1807 | return 0; | |
1808 | } | |
1809 | ||
1810 | #if STREAMER_NETWORK_MONITOR | |
1811 | #ifdef CONFIG_PROC_FS | |
1812 | static int streamer_proc_info(char *buffer, char **start, off_t offset, | |
1813 | int length, int *eof, void *data) | |
1814 | { | |
1815 | struct streamer_private *sdev=NULL; | |
1816 | struct pci_dev *pci_device = NULL; | |
1817 | int len = 0; | |
1818 | off_t begin = 0; | |
1819 | off_t pos = 0; | |
1820 | int size; | |
1821 | ||
1822 | struct net_device *dev; | |
1823 | ||
1824 | size = sprintf(buffer, "IBM LanStreamer/MPC Chipset Token Ring Adapters\n"); | |
1825 | ||
1826 | pos += size; | |
1827 | len += size; | |
1828 | ||
1829 | for(sdev=dev_streamer; sdev; sdev=sdev->next) { | |
1830 | pci_device=sdev->pci_dev; | |
1831 | dev=pci_get_drvdata(pci_device); | |
1832 | ||
1833 | size = sprintf_info(buffer + len, dev); | |
1834 | len += size; | |
1835 | pos = begin + len; | |
1836 | ||
1837 | if (pos < offset) { | |
1838 | len = 0; | |
1839 | begin = pos; | |
1840 | } | |
1841 | if (pos > offset + length) | |
1842 | break; | |
1843 | } /* for */ | |
1844 | ||
1845 | *start = buffer + (offset - begin); /* Start of wanted data */ | |
1846 | len -= (offset - begin); /* Start slop */ | |
1847 | if (len > length) | |
1848 | len = length; /* Ending slop */ | |
1849 | return len; | |
1850 | } | |
1851 | ||
1852 | static int sprintf_info(char *buffer, struct net_device *dev) | |
1853 | { | |
1854 | struct streamer_private *streamer_priv = | |
1855 | (struct streamer_private *) dev->priv; | |
1856 | __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1857 | struct streamer_adapter_addr_table sat; | |
1858 | struct streamer_parameters_table spt; | |
1859 | int size = 0; | |
1860 | int i; | |
1861 | ||
1862 | writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA); | |
1863 | for (i = 0; i < 14; i += 2) { | |
1864 | __u16 io_word; | |
1865 | __u8 *datap = (__u8 *) & sat; | |
1866 | io_word=ntohs(readw(streamer_mmio+LAPDINC)); | |
1867 | datap[size]=io_word >> 8; | |
1868 | datap[size+1]=io_word & 0xff; | |
1869 | } | |
1870 | writew(streamer_priv->streamer_parms_addr, streamer_mmio + LAPA); | |
1871 | for (i = 0; i < 68; i += 2) { | |
1872 | __u16 io_word; | |
1873 | __u8 *datap = (__u8 *) & spt; | |
1874 | io_word=ntohs(readw(streamer_mmio+LAPDINC)); | |
1875 | datap[size]=io_word >> 8; | |
1876 | datap[size+1]=io_word & 0xff; | |
1877 | } | |
1878 | ||
1879 | ||
1880 | size = sprintf(buffer, "\n%6s: Adapter Address : Node Address : Functional Addr\n", dev->name); | |
1881 | ||
1882 | size += sprintf(buffer + size, | |
1883 | "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x\n", | |
1884 | dev->name, dev->dev_addr[0], dev->dev_addr[1], | |
1885 | dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4], | |
1886 | dev->dev_addr[5], sat.node_addr[0], sat.node_addr[1], | |
1887 | sat.node_addr[2], sat.node_addr[3], sat.node_addr[4], | |
1888 | sat.node_addr[5], sat.func_addr[0], sat.func_addr[1], | |
1889 | sat.func_addr[2], sat.func_addr[3]); | |
1890 | ||
1891 | size += sprintf(buffer + size, "\n%6s: Token Ring Parameters Table:\n", dev->name); | |
1892 | ||
1893 | size += sprintf(buffer + size, "%6s: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code :\n", dev->name); | |
1894 | ||
1895 | size += sprintf(buffer + size, | |
1896 | "%6s: %02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x :\n", | |
1897 | dev->name, spt.phys_addr[0], spt.phys_addr[1], | |
1898 | spt.phys_addr[2], spt.phys_addr[3], | |
1899 | spt.up_node_addr[0], spt.up_node_addr[1], | |
1900 | spt.up_node_addr[2], spt.up_node_addr[3], | |
1901 | spt.up_node_addr[4], spt.up_node_addr[4], | |
1902 | spt.poll_addr[0], spt.poll_addr[1], spt.poll_addr[2], | |
1903 | spt.poll_addr[3], spt.poll_addr[4], spt.poll_addr[5], | |
1904 | ntohs(spt.acc_priority), ntohs(spt.auth_source_class), | |
1905 | ntohs(spt.att_code)); | |
1906 | ||
1907 | size += sprintf(buffer + size, "%6s: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : \n", dev->name); | |
1908 | ||
1909 | size += sprintf(buffer + size, | |
1910 | "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x : %04x : %04x : %04x : \n", | |
1911 | dev->name, spt.source_addr[0], spt.source_addr[1], | |
1912 | spt.source_addr[2], spt.source_addr[3], | |
1913 | spt.source_addr[4], spt.source_addr[5], | |
1914 | ntohs(spt.beacon_type), ntohs(spt.major_vector), | |
1915 | ntohs(spt.lan_status), ntohs(spt.local_ring), | |
1916 | ntohs(spt.mon_error), ntohs(spt.frame_correl)); | |
1917 | ||
1918 | size += sprintf(buffer + size, "%6s: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : \n", | |
1919 | dev->name); | |
1920 | ||
1921 | size += sprintf(buffer + size, | |
1922 | "%6s: : %02x : %02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x : \n", | |
1923 | dev->name, ntohs(spt.beacon_transmit), | |
1924 | ntohs(spt.beacon_receive), spt.beacon_naun[0], | |
1925 | spt.beacon_naun[1], spt.beacon_naun[2], | |
1926 | spt.beacon_naun[3], spt.beacon_naun[4], | |
1927 | spt.beacon_naun[5], spt.beacon_phys[0], | |
1928 | spt.beacon_phys[1], spt.beacon_phys[2], | |
1929 | spt.beacon_phys[3]); | |
1930 | return size; | |
1931 | } | |
1932 | #endif | |
1933 | #endif | |
1934 | ||
1935 | #if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | |
1936 | static int streamer_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
1937 | { | |
1938 | int i; | |
1939 | struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; | |
1940 | u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; | |
1941 | ||
1942 | switch(cmd) { | |
1943 | case IOCTL_SISR_MASK: | |
1944 | writew(SISR_MI, streamer_mmio + SISR_MASK_SUM); | |
1945 | break; | |
1946 | case IOCTL_SPIN_LOCK_TEST: | |
1947 | printk(KERN_INFO "spin_lock() called.\n"); | |
1948 | spin_lock(&streamer_priv->streamer_lock); | |
1949 | spin_unlock(&streamer_priv->streamer_lock); | |
1950 | printk(KERN_INFO "spin_unlock() finished.\n"); | |
1951 | break; | |
1952 | case IOCTL_PRINT_BDAS: | |
1953 | printk(KERN_INFO "bdas: RXBDA: %x RXLBDA: %x TX2FDA: %x TX2LFDA: %x\n", | |
1954 | readw(streamer_mmio + RXBDA), | |
1955 | readw(streamer_mmio + RXLBDA), | |
1956 | readw(streamer_mmio + TX2FDA), | |
1957 | readw(streamer_mmio + TX2LFDA)); | |
1958 | break; | |
1959 | case IOCTL_PRINT_REGISTERS: | |
1960 | printk(KERN_INFO "registers:\n"); | |
1961 | printk(KERN_INFO "SISR: %04x MISR: %04x LISR: %04x BCTL: %04x BMCTL: %04x\nmask %04x mask %04x\n", | |
1962 | readw(streamer_mmio + SISR), | |
1963 | readw(streamer_mmio + MISR_RUM), | |
1964 | readw(streamer_mmio + LISR), | |
1965 | readw(streamer_mmio + BCTL), | |
1966 | readw(streamer_mmio + BMCTL_SUM), | |
1967 | readw(streamer_mmio + SISR_MASK), | |
1968 | readw(streamer_mmio + MISR_MASK)); | |
1969 | break; | |
1970 | case IOCTL_PRINT_RX_BUFS: | |
1971 | printk(KERN_INFO "Print rx bufs:\n"); | |
1972 | for(i=0; i<STREAMER_RX_RING_SIZE; i++) | |
1973 | printk(KERN_INFO "rx_ring %d status: 0x%x\n", i, | |
1974 | streamer_priv->streamer_rx_ring[i].status); | |
1975 | break; | |
1976 | case IOCTL_PRINT_TX_BUFS: | |
1977 | printk(KERN_INFO "Print tx bufs:\n"); | |
1978 | for(i=0; i<STREAMER_TX_RING_SIZE; i++) | |
1979 | printk(KERN_INFO "tx_ring %d status: 0x%x\n", i, | |
1980 | streamer_priv->streamer_tx_ring[i].status); | |
1981 | break; | |
1982 | case IOCTL_RX_CMD: | |
1983 | streamer_rx(dev); | |
1984 | printk(KERN_INFO "Sent rx command.\n"); | |
1985 | break; | |
1986 | default: | |
1987 | printk(KERN_INFO "Bad ioctl!\n"); | |
1988 | } | |
1989 | return 0; | |
1990 | } | |
1991 | #endif | |
1992 | ||
1993 | static struct pci_driver streamer_pci_driver = { | |
1994 | .name = "lanstreamer", | |
1995 | .id_table = streamer_pci_tbl, | |
1996 | .probe = streamer_init_one, | |
1997 | .remove = __devexit_p(streamer_remove_one), | |
1998 | }; | |
1999 | ||
2000 | static int __init streamer_init_module(void) { | |
29917620 | 2001 | return pci_register_driver(&streamer_pci_driver); |
1da177e4 LT |
2002 | } |
2003 | ||
2004 | static void __exit streamer_cleanup_module(void) { | |
2005 | pci_unregister_driver(&streamer_pci_driver); | |
2006 | } | |
2007 | ||
2008 | module_init(streamer_init_module); | |
2009 | module_exit(streamer_cleanup_module); | |
2010 | MODULE_LICENSE("GPL"); |