Commit | Line | Data |
---|---|---|
9c54004e DW |
1 | /* |
2 | * Driver for the Solos PCI ADSL2+ card, designed to support Linux by | |
3 | * Traverse Technologies -- http://www.traverse.com.au/ | |
4 | * Xrio Limited -- http://www.xrio.com/ | |
5 | * | |
6 | * | |
7 | * Copyright © 2008 Traverse Technologies | |
8 | * Copyright © 2008 Intel Corporation | |
9 | * | |
10 | * Authors: Nathan Williams <nathan@traverse.com.au> | |
11 | * David Woodhouse <dwmw2@infradead.org> | |
7c4015bd | 12 | * Treker Chen <treker@xrio.com> |
9c54004e DW |
13 | * |
14 | * This program is free software; you can redistribute it and/or | |
15 | * modify it under the terms of the GNU General Public License | |
16 | * version 2, as published by the Free Software Foundation. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | */ | |
23 | ||
24 | #define DEBUG | |
25 | #define VERBOSE_DEBUG | |
26 | ||
27 | #include <linux/interrupt.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/ioport.h> | |
32 | #include <linux/types.h> | |
33 | #include <linux/pci.h> | |
34 | #include <linux/atm.h> | |
35 | #include <linux/atmdev.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/sysfs.h> | |
38 | #include <linux/device.h> | |
39 | #include <linux/kobject.h> | |
7c4015bd | 40 | #include <linux/firmware.h> |
01e2ffac DW |
41 | #include <linux/ctype.h> |
42 | #include <linux/swab.h> | |
9c54004e | 43 | |
7c4015bd | 44 | #define VERSION "0.07" |
9c54004e DW |
45 | #define PTAG "solos-pci" |
46 | ||
47 | #define CONFIG_RAM_SIZE 128 | |
48 | #define FLAGS_ADDR 0x7C | |
49 | #define IRQ_EN_ADDR 0x78 | |
50 | #define FPGA_VER 0x74 | |
51 | #define IRQ_CLEAR 0x70 | |
7c4015bd SF |
52 | #define WRITE_FLASH 0x6C |
53 | #define PORTS 0x68 | |
54 | #define FLASH_BLOCK 0x64 | |
55 | #define FLASH_BUSY 0x60 | |
56 | #define FPGA_MODE 0x5C | |
57 | #define FLASH_MODE 0x58 | |
90937231 DW |
58 | #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) |
59 | #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) | |
9c54004e DW |
60 | |
61 | #define DATA_RAM_SIZE 32768 | |
4dbedf43 NW |
62 | #define BUF_SIZE 2048 |
63 | #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/ | |
7c4015bd SF |
64 | #define FPGA_PAGE 528 /* FPGA flash page size*/ |
65 | #define SOLOS_PAGE 512 /* Solos flash page size*/ | |
66 | #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/ | |
67 | #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/ | |
9c54004e | 68 | |
4dbedf43 NW |
69 | #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2) |
70 | #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size)) | |
71 | #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2) | |
9c54004e | 72 | |
eaf83e39 DW |
73 | #define RX_DMA_SIZE 2048 |
74 | ||
4dbedf43 NW |
75 | #define FPGA_VERSION(a,b) (((a) << 8) + (b)) |
76 | #define LEGACY_BUFFERS 2 | |
77 | #define DMA_SUPPORTED 4 | |
78 | ||
cc3657e1 | 79 | static int reset = 0; |
9c54004e | 80 | static int atmdebug = 0; |
7c4015bd SF |
81 | static int firmware_upgrade = 0; |
82 | static int fpga_upgrade = 0; | |
4dbedf43 NW |
83 | static int db_firmware_upgrade = 0; |
84 | static int db_fpga_upgrade = 0; | |
9c54004e DW |
85 | |
86 | struct pkt_hdr { | |
87 | __le16 size; | |
88 | __le16 vpi; | |
89 | __le16 vci; | |
90 | __le16 type; | |
91 | }; | |
92 | ||
90937231 DW |
93 | struct solos_skb_cb { |
94 | struct atm_vcc *vcc; | |
95 | uint32_t dma_addr; | |
96 | }; | |
97 | ||
98 | ||
99 | #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) | |
100 | ||
9c54004e DW |
101 | #define PKT_DATA 0 |
102 | #define PKT_COMMAND 1 | |
103 | #define PKT_POPEN 3 | |
104 | #define PKT_PCLOSE 4 | |
87ebb186 | 105 | #define PKT_STATUS 5 |
9c54004e DW |
106 | |
107 | struct solos_card { | |
108 | void __iomem *config_regs; | |
109 | void __iomem *buffers; | |
110 | int nr_ports; | |
f69e4170 | 111 | int tx_mask; |
9c54004e DW |
112 | struct pci_dev *dev; |
113 | struct atm_dev *atmdev[4]; | |
114 | struct tasklet_struct tlet; | |
115 | spinlock_t tx_lock; | |
116 | spinlock_t tx_queue_lock; | |
117 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
118 | spinlock_t param_queue_lock; |
119 | struct list_head param_queue; | |
9c54004e DW |
120 | struct sk_buff_head tx_queue[4]; |
121 | struct sk_buff_head cli_queue[4]; | |
90937231 DW |
122 | struct sk_buff *tx_skb[4]; |
123 | struct sk_buff *rx_skb[4]; | |
01e2ffac | 124 | wait_queue_head_t param_wq; |
fa755b9f | 125 | wait_queue_head_t fw_wq; |
90937231 | 126 | int using_dma; |
4dbedf43 NW |
127 | int fpga_version; |
128 | int buffer_size; | |
9c54004e DW |
129 | }; |
130 | ||
01e2ffac DW |
131 | |
132 | struct solos_param { | |
133 | struct list_head list; | |
134 | pid_t pid; | |
135 | int port; | |
136 | struct sk_buff *response; | |
01e2ffac DW |
137 | }; |
138 | ||
9c54004e DW |
139 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) |
140 | ||
141 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
142 | MODULE_DESCRIPTION("Solos PCI driver"); | |
143 | MODULE_VERSION(VERSION); | |
144 | MODULE_LICENSE("GPL"); | |
cc3657e1 | 145 | MODULE_PARM_DESC(reset, "Reset Solos chips on startup"); |
9c54004e | 146 | MODULE_PARM_DESC(atmdebug, "Print ATM data"); |
7c4015bd SF |
147 | MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); |
148 | MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); | |
4dbedf43 NW |
149 | MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade"); |
150 | MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade"); | |
cc3657e1 | 151 | module_param(reset, int, 0444); |
4306cad6 | 152 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
153 | module_param(firmware_upgrade, int, 0444); |
154 | module_param(fpga_upgrade, int, 0444); | |
4dbedf43 NW |
155 | module_param(db_firmware_upgrade, int, 0444); |
156 | module_param(db_fpga_upgrade, int, 0444); | |
9c54004e | 157 | |
9c54004e DW |
158 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, |
159 | struct atm_vcc *vcc); | |
35c2221b | 160 | static uint32_t fpga_tx(struct solos_card *); |
9c54004e DW |
161 | static irqreturn_t solos_irq(int irq, void *dev_id); |
162 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
163 | static int list_vccs(int vci); | |
1e615df6 | 164 | static void release_vccs(struct atm_dev *dev); |
9c54004e DW |
165 | static int atm_init(struct solos_card *); |
166 | static void atm_remove(struct solos_card *); | |
167 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
168 | static void solos_bh(unsigned long); | |
169 | static int print_buffer(struct sk_buff *buf); | |
170 | ||
171 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
172 | { | |
173 | if (vcc->pop) | |
174 | vcc->pop(vcc, skb); | |
175 | else | |
176 | dev_kfree_skb_any(skb); | |
177 | } | |
178 | ||
01e2ffac DW |
179 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
180 | char *buf) | |
181 | { | |
182 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
183 | struct solos_card *card = atmdev->dev_data; | |
184 | struct solos_param prm; | |
185 | struct sk_buff *skb; | |
186 | struct pkt_hdr *header; | |
187 | int buflen; | |
188 | ||
189 | buflen = strlen(attr->attr.name) + 10; | |
190 | ||
3456b221 | 191 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
192 | if (!skb) { |
193 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
194 | return -ENOMEM; | |
195 | } | |
196 | ||
197 | header = (void *)skb_put(skb, sizeof(*header)); | |
198 | ||
199 | buflen = snprintf((void *)&header[1], buflen - 1, | |
200 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
201 | skb_put(skb, buflen); | |
202 | ||
203 | header->size = cpu_to_le16(buflen); | |
204 | header->vpi = cpu_to_le16(0); | |
205 | header->vci = cpu_to_le16(0); | |
206 | header->type = cpu_to_le16(PKT_COMMAND); | |
207 | ||
208 | prm.pid = current->pid; | |
209 | prm.response = NULL; | |
210 | prm.port = SOLOS_CHAN(atmdev); | |
211 | ||
212 | spin_lock_irq(&card->param_queue_lock); | |
213 | list_add(&prm.list, &card->param_queue); | |
214 | spin_unlock_irq(&card->param_queue_lock); | |
215 | ||
216 | fpga_queue(card, prm.port, skb, NULL); | |
217 | ||
218 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
219 | ||
220 | spin_lock_irq(&card->param_queue_lock); | |
221 | list_del(&prm.list); | |
222 | spin_unlock_irq(&card->param_queue_lock); | |
223 | ||
224 | if (!prm.response) | |
225 | return -EIO; | |
226 | ||
227 | buflen = prm.response->len; | |
228 | memcpy(buf, prm.response->data, buflen); | |
229 | kfree_skb(prm.response); | |
230 | ||
231 | return buflen; | |
232 | } | |
233 | ||
234 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
235 | const char *buf, size_t count) | |
236 | { | |
237 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
238 | struct solos_card *card = atmdev->dev_data; | |
239 | struct solos_param prm; | |
240 | struct sk_buff *skb; | |
241 | struct pkt_hdr *header; | |
242 | int buflen; | |
243 | ssize_t ret; | |
244 | ||
245 | buflen = strlen(attr->attr.name) + 11 + count; | |
246 | ||
3456b221 | 247 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
248 | if (!skb) { |
249 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
250 | return -ENOMEM; | |
251 | } | |
252 | ||
253 | header = (void *)skb_put(skb, sizeof(*header)); | |
254 | ||
255 | buflen = snprintf((void *)&header[1], buflen - 1, | |
256 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
257 | ||
258 | skb_put(skb, buflen); | |
259 | header->size = cpu_to_le16(buflen); | |
260 | header->vpi = cpu_to_le16(0); | |
261 | header->vci = cpu_to_le16(0); | |
262 | header->type = cpu_to_le16(PKT_COMMAND); | |
263 | ||
264 | prm.pid = current->pid; | |
265 | prm.response = NULL; | |
266 | prm.port = SOLOS_CHAN(atmdev); | |
267 | ||
268 | spin_lock_irq(&card->param_queue_lock); | |
269 | list_add(&prm.list, &card->param_queue); | |
270 | spin_unlock_irq(&card->param_queue_lock); | |
271 | ||
272 | fpga_queue(card, prm.port, skb, NULL); | |
273 | ||
274 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
275 | ||
276 | spin_lock_irq(&card->param_queue_lock); | |
277 | list_del(&prm.list); | |
278 | spin_unlock_irq(&card->param_queue_lock); | |
279 | ||
280 | skb = prm.response; | |
281 | ||
282 | if (!skb) | |
283 | return -EIO; | |
284 | ||
285 | buflen = skb->len; | |
286 | ||
287 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
288 | if (skb->data[buflen - 1] == '\n') | |
289 | buflen--; | |
290 | ||
291 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
292 | ret = count; | |
293 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
294 | ret = -EIO; | |
295 | else { | |
296 | /* We know we have enough space allocated for this; we allocated | |
297 | it ourselves */ | |
298 | skb->data[buflen] = 0; | |
299 | ||
300 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
301 | skb->data); | |
302 | ret = -EIO; | |
303 | } | |
304 | kfree_skb(skb); | |
305 | ||
306 | return ret; | |
307 | } | |
308 | ||
87ebb186 DW |
309 | static char *next_string(struct sk_buff *skb) |
310 | { | |
311 | int i = 0; | |
312 | char *this = skb->data; | |
c6428e52 DW |
313 | |
314 | for (i = 0; i < skb->len; i++) { | |
87ebb186 DW |
315 | if (this[i] == '\n') { |
316 | this[i] = 0; | |
c6428e52 | 317 | skb_pull(skb, i + 1); |
87ebb186 DW |
318 | return this; |
319 | } | |
c6428e52 DW |
320 | if (!isprint(this[i])) |
321 | return NULL; | |
87ebb186 DW |
322 | } |
323 | return NULL; | |
324 | } | |
325 | ||
326 | /* | |
327 | * Status packet has fields separated by \n, starting with a version number | |
328 | * for the information therein. Fields are.... | |
329 | * | |
330 | * packet version | |
87ebb186 | 331 | * RxBitRate (version >= 1) |
f87b2ed2 | 332 | * TxBitRate (version >= 1) |
87ebb186 | 333 | * State (version >= 1) |
f87b2ed2 DW |
334 | * LocalSNRMargin (version >= 1) |
335 | * LocalLineAttn (version >= 1) | |
87ebb186 DW |
336 | */ |
337 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
338 | { | |
f87b2ed2 DW |
339 | char *str, *end, *state_str, *snr, *attn; |
340 | int ver, rate_up, rate_down; | |
87ebb186 DW |
341 | |
342 | if (!card->atmdev[port]) | |
343 | return -ENODEV; | |
344 | ||
345 | str = next_string(skb); | |
346 | if (!str) | |
347 | return -EIO; | |
348 | ||
349 | ver = simple_strtol(str, NULL, 10); | |
350 | if (ver < 1) { | |
351 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
352 | ver); | |
353 | return -EIO; | |
354 | } | |
355 | ||
356 | str = next_string(skb); | |
c6428e52 DW |
357 | if (!str) |
358 | return -EIO; | |
95852f48 DW |
359 | if (!strcmp(str, "ERROR")) { |
360 | dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n", | |
361 | port); | |
362 | return 0; | |
363 | } | |
364 | ||
f87b2ed2 | 365 | rate_down = simple_strtol(str, &end, 10); |
87ebb186 DW |
366 | if (*end) |
367 | return -EIO; | |
368 | ||
369 | str = next_string(skb); | |
c6428e52 DW |
370 | if (!str) |
371 | return -EIO; | |
f87b2ed2 | 372 | rate_up = simple_strtol(str, &end, 10); |
87ebb186 DW |
373 | if (*end) |
374 | return -EIO; | |
375 | ||
af780656 | 376 | state_str = next_string(skb); |
c6428e52 DW |
377 | if (!state_str) |
378 | return -EIO; | |
f87b2ed2 DW |
379 | |
380 | /* Anything but 'Showtime' is down */ | |
381 | if (strcmp(state_str, "Showtime")) { | |
382 | card->atmdev[port]->signal = ATM_PHY_SIG_LOST; | |
1e615df6 | 383 | release_vccs(card->atmdev[port]); |
f87b2ed2 DW |
384 | dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str); |
385 | return 0; | |
1e615df6 | 386 | } |
87ebb186 | 387 | |
f87b2ed2 DW |
388 | snr = next_string(skb); |
389 | if (!str) | |
390 | return -EIO; | |
391 | attn = next_string(skb); | |
392 | if (!attn) | |
393 | return -EIO; | |
394 | ||
395 | dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n", | |
396 | port, state_str, rate_down/1000, rate_up/1000, | |
397 | snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn); | |
398 | ||
c6428e52 | 399 | card->atmdev[port]->link_rate = rate_down / 424; |
f87b2ed2 | 400 | card->atmdev[port]->signal = ATM_PHY_SIG_FOUND; |
87ebb186 | 401 | |
87ebb186 DW |
402 | return 0; |
403 | } | |
404 | ||
01e2ffac DW |
405 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
406 | { | |
407 | struct solos_param *prm; | |
408 | unsigned long flags; | |
409 | int cmdpid; | |
410 | int found = 0; | |
411 | ||
412 | if (skb->len < 7) | |
413 | return 0; | |
414 | ||
415 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
416 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
417 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
418 | skb->data[6] != '\n') | |
419 | return 0; | |
420 | ||
421 | cmdpid = simple_strtol(&skb->data[1], NULL, 10); | |
422 | ||
423 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
424 | list_for_each_entry(prm, &card->param_queue, list) { | |
425 | if (prm->port == port && prm->pid == cmdpid) { | |
426 | prm->response = skb; | |
427 | skb_pull(skb, 7); | |
428 | wake_up(&card->param_wq); | |
429 | found = 1; | |
430 | break; | |
431 | } | |
432 | } | |
433 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
434 | return found; | |
435 | } | |
436 | ||
9c54004e DW |
437 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
438 | char *buf) | |
439 | { | |
440 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
441 | struct solos_card *card = atmdev->dev_data; | |
442 | struct sk_buff *skb; | |
443 | ||
444 | spin_lock(&card->cli_queue_lock); | |
445 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
446 | spin_unlock(&card->cli_queue_lock); | |
447 | if(skb == NULL) | |
448 | return sprintf(buf, "No data.\n"); | |
449 | ||
450 | memcpy(buf, skb->data, skb->len); | |
451 | dev_dbg(&card->dev->dev, "len: %d\n", skb->len); | |
452 | ||
453 | kfree_skb(skb); | |
454 | return skb->len; | |
455 | } | |
456 | ||
457 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
458 | { | |
459 | struct sk_buff *skb; | |
460 | struct pkt_hdr *header; | |
461 | ||
9c54004e DW |
462 | if (size > (BUF_SIZE - sizeof(*header))) { |
463 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
464 | return 0; | |
465 | } | |
466 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
467 | if (!skb) { | |
468 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
469 | return 0; | |
470 | } | |
471 | ||
472 | header = (void *)skb_put(skb, sizeof(*header)); | |
473 | ||
474 | header->size = cpu_to_le16(size); | |
475 | header->vpi = cpu_to_le16(0); | |
476 | header->vci = cpu_to_le16(0); | |
477 | header->type = cpu_to_le16(PKT_COMMAND); | |
478 | ||
479 | memcpy(skb_put(skb, size), buf, size); | |
480 | ||
481 | fpga_queue(card, dev, skb, NULL); | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
486 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
487 | const char *buf, size_t count) | |
488 | { | |
489 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
490 | struct solos_card *card = atmdev->dev_data; | |
491 | int err; | |
492 | ||
493 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
494 | ||
495 | return err?:count; | |
496 | } | |
497 | ||
498 | static DEVICE_ATTR(console, 0644, console_show, console_store); | |
d057f0a4 DW |
499 | |
500 | ||
501 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
502 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
503 | ||
504 | #include "solos-attrlist.c" | |
505 | ||
506 | #undef SOLOS_ATTR_RO | |
507 | #undef SOLOS_ATTR_RW | |
508 | ||
509 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
510 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
511 | ||
512 | static struct attribute *solos_attrs[] = { | |
513 | #include "solos-attrlist.c" | |
514 | NULL | |
515 | }; | |
516 | ||
517 | static struct attribute_group solos_attr_group = { | |
518 | .attrs = solos_attrs, | |
519 | .name = "parameters", | |
520 | }; | |
9c54004e | 521 | |
fa755b9f DW |
522 | static int flash_upgrade(struct solos_card *card, int chip) |
523 | { | |
524 | const struct firmware *fw; | |
525 | const char *fw_name; | |
7c4015bd SF |
526 | uint32_t data32 = 0; |
527 | int blocksize = 0; | |
528 | int numblocks = 0; | |
fa755b9f DW |
529 | int offset; |
530 | ||
531 | if (chip == 0) { | |
532 | fw_name = "solos-FPGA.bin"; | |
7c4015bd | 533 | blocksize = FPGA_BLOCK; |
4dbedf43 NW |
534 | } |
535 | ||
536 | if (chip == 1) { | |
fa755b9f | 537 | fw_name = "solos-Firmware.bin"; |
7c4015bd SF |
538 | blocksize = SOLOS_BLOCK; |
539 | } | |
4dbedf43 NW |
540 | |
541 | if (chip == 2){ | |
542 | if (card->fpga_version > LEGACY_BUFFERS){ | |
543 | fw_name = "solos-db-FPGA.bin"; | |
544 | blocksize = FPGA_BLOCK; | |
545 | } else { | |
546 | dev_info(&card->dev->dev, "FPGA version doesn't support daughter board upgrades\n"); | |
547 | return -EPERM; | |
548 | } | |
549 | } | |
550 | ||
551 | if (chip == 3){ | |
552 | if (card->fpga_version > LEGACY_BUFFERS){ | |
553 | fw_name = "solos-Firmware.bin"; | |
554 | blocksize = SOLOS_BLOCK; | |
555 | } else { | |
556 | dev_info(&card->dev->dev, "FPGA version doesn't support daughter board upgrades\n"); | |
557 | return -EPERM; | |
558 | } | |
559 | } | |
fa755b9f DW |
560 | |
561 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
562 | return -ENOENT; | |
563 | ||
564 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
565 | ||
566 | numblocks = fw->size / blocksize; | |
567 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
568 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
569 | ||
7c4015bd SF |
570 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
571 | iowrite32(1, card->config_regs + FPGA_MODE); | |
572 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
7c4015bd | 573 | |
fa755b9f | 574 | /* Set mode to Chip Erase */ |
4dbedf43 NW |
575 | if(chip == 0 || chip == 2) |
576 | dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); | |
577 | if(chip == 1 || chip == 3) | |
578 | dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); | |
fa755b9f | 579 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); |
7c4015bd | 580 | |
7c4015bd | 581 | |
fa755b9f DW |
582 | iowrite32(1, card->config_regs + WRITE_FLASH); |
583 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
584 | ||
585 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
586 | int i; | |
587 | ||
588 | /* Clear write flag */ | |
7c4015bd | 589 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 590 | |
fa755b9f DW |
591 | /* Set mode to Block Write */ |
592 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
593 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
594 | ||
595 | /* Copy block to buffer, swapping each 16 bits */ | |
596 | for(i = 0; i < blocksize; i += 4) { | |
597 | uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
4dbedf43 NW |
598 | if(card->fpga_version > LEGACY_BUFFERS) |
599 | iowrite32(word, FLASH_BUF + i); | |
600 | else | |
601 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 602 | } |
fa755b9f DW |
603 | |
604 | /* Specify block number and then trigger flash write */ | |
605 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
606 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
607 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
608 | } |
609 | ||
fa755b9f DW |
610 | release_firmware(fw); |
611 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
612 | iowrite32(0, card->config_regs + FPGA_MODE); | |
613 | iowrite32(0, card->config_regs + FLASH_MODE); | |
614 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
615 | return 0; | |
7c4015bd SF |
616 | } |
617 | ||
9c54004e DW |
618 | static irqreturn_t solos_irq(int irq, void *dev_id) |
619 | { | |
620 | struct solos_card *card = dev_id; | |
621 | int handled = 1; | |
622 | ||
9c54004e | 623 | iowrite32(0, card->config_regs + IRQ_CLEAR); |
9c54004e | 624 | |
35c2221b | 625 | /* If we're up and running, just kick the tasklet to process TX/RX */ |
fa755b9f | 626 | if (card->atmdev[0]) |
9c54004e | 627 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
628 | else |
629 | wake_up(&card->fw_wq); | |
9c54004e | 630 | |
9c54004e DW |
631 | return IRQ_RETVAL(handled); |
632 | } | |
633 | ||
634 | void solos_bh(unsigned long card_arg) | |
635 | { | |
636 | struct solos_card *card = (void *)card_arg; | |
9c54004e | 637 | uint32_t card_flags; |
9c54004e | 638 | uint32_t rx_done = 0; |
35c2221b | 639 | int port; |
9c54004e | 640 | |
35c2221b DW |
641 | /* |
642 | * Since fpga_tx() is going to need to read the flags under its lock, | |
643 | * it can return them to us so that we don't have to hit PCI MMIO | |
644 | * again for the same information | |
645 | */ | |
646 | card_flags = fpga_tx(card); | |
9c54004e DW |
647 | |
648 | for (port = 0; port < card->nr_ports; port++) { | |
649 | if (card_flags & (0x10 << port)) { | |
90937231 | 650 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
651 | struct sk_buff *skb; |
652 | struct atm_vcc *vcc; | |
653 | int size; | |
654 | ||
90937231 DW |
655 | if (card->using_dma) { |
656 | skb = card->rx_skb[port]; | |
eaf83e39 DW |
657 | card->rx_skb[port] = NULL; |
658 | ||
659 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, | |
660 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
661 | ||
90937231 DW |
662 | header = (void *)skb->data; |
663 | size = le16_to_cpu(header->size); | |
664 | skb_put(skb, size + sizeof(*header)); | |
665 | skb_pull(skb, sizeof(*header)); | |
666 | } else { | |
667 | header = &_hdr; | |
9c54004e | 668 | |
90937231 | 669 | rx_done |= 0x10 << port; |
9c54004e | 670 | |
90937231 | 671 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 672 | |
90937231 | 673 | size = le16_to_cpu(header->size); |
9c54004e | 674 | |
90937231 DW |
675 | skb = alloc_skb(size + 1, GFP_ATOMIC); |
676 | if (!skb) { | |
677 | if (net_ratelimit()) | |
678 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
679 | continue; | |
680 | } | |
9c54004e | 681 | |
90937231 DW |
682 | memcpy_fromio(skb_put(skb, size), |
683 | RX_BUF(card, port) + sizeof(*header), | |
684 | size); | |
685 | } | |
9c54004e DW |
686 | if (atmdebug) { |
687 | dev_info(&card->dev->dev, "Received: device %d\n", port); | |
688 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", | |
90937231 DW |
689 | size, le16_to_cpu(header->vpi), |
690 | le16_to_cpu(header->vci)); | |
9c54004e DW |
691 | print_buffer(skb); |
692 | } | |
693 | ||
90937231 | 694 | switch (le16_to_cpu(header->type)) { |
9c54004e | 695 | case PKT_DATA: |
90937231 DW |
696 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
697 | le16_to_cpu(header->vci)); | |
9c54004e DW |
698 | if (!vcc) { |
699 | if (net_ratelimit()) | |
700 | dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n", | |
90937231 | 701 | le16_to_cpu(header->vci), le16_to_cpu(header->vpi), |
9c54004e DW |
702 | port); |
703 | continue; | |
704 | } | |
705 | atm_charge(vcc, skb->truesize); | |
706 | vcc->push(vcc, skb); | |
707 | atomic_inc(&vcc->stats->rx); | |
708 | break; | |
709 | ||
87ebb186 | 710 | case PKT_STATUS: |
95852f48 DW |
711 | if (process_status(card, port, skb) && |
712 | net_ratelimit()) { | |
713 | dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); | |
714 | print_buffer(skb); | |
715 | } | |
eaf83e39 | 716 | dev_kfree_skb_any(skb); |
87ebb186 DW |
717 | break; |
718 | ||
9c54004e DW |
719 | case PKT_COMMAND: |
720 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
721 | if (process_command(card, port, skb)) |
722 | break; | |
9c54004e DW |
723 | spin_lock(&card->cli_queue_lock); |
724 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
725 | if (net_ratelimit()) | |
726 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
727 | port); | |
eaf83e39 | 728 | dev_kfree_skb_any(skb); |
9c54004e DW |
729 | } else |
730 | skb_queue_tail(&card->cli_queue[port], skb); | |
731 | spin_unlock(&card->cli_queue_lock); | |
732 | break; | |
733 | } | |
734 | } | |
eaf83e39 DW |
735 | /* Allocate RX skbs for any ports which need them */ |
736 | if (card->using_dma && card->atmdev[port] && | |
737 | !card->rx_skb[port]) { | |
738 | struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC); | |
739 | if (skb) { | |
740 | SKB_CB(skb)->dma_addr = | |
741 | pci_map_single(card->dev, skb->data, | |
742 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
743 | iowrite32(SKB_CB(skb)->dma_addr, | |
744 | card->config_regs + RX_DMA_ADDR(port)); | |
745 | card->rx_skb[port] = skb; | |
746 | } else { | |
747 | if (net_ratelimit()) | |
748 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); | |
749 | ||
750 | /* We'll have to try again later */ | |
751 | tasklet_schedule(&card->tlet); | |
752 | } | |
753 | } | |
9c54004e DW |
754 | } |
755 | if (rx_done) | |
756 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
757 | ||
758 | return; | |
759 | } | |
760 | ||
761 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
762 | { | |
763 | struct hlist_head *head; | |
764 | struct atm_vcc *vcc = NULL; | |
765 | struct hlist_node *node; | |
766 | struct sock *s; | |
767 | ||
768 | read_lock(&vcc_sklist_lock); | |
769 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
770 | sk_for_each(s, node, head) { | |
771 | vcc = atm_sk(s); | |
772 | if (vcc->dev == dev && vcc->vci == vci && | |
773 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE) | |
774 | goto out; | |
775 | } | |
776 | vcc = NULL; | |
777 | out: | |
778 | read_unlock(&vcc_sklist_lock); | |
779 | return vcc; | |
780 | } | |
781 | ||
782 | static int list_vccs(int vci) | |
783 | { | |
784 | struct hlist_head *head; | |
785 | struct atm_vcc *vcc; | |
786 | struct hlist_node *node; | |
787 | struct sock *s; | |
788 | int num_found = 0; | |
789 | int i; | |
790 | ||
791 | read_lock(&vcc_sklist_lock); | |
792 | if (vci != 0){ | |
793 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
794 | sk_for_each(s, node, head) { | |
795 | num_found ++; | |
796 | vcc = atm_sk(s); | |
797 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
798 | vcc->dev->number, | |
799 | vcc->vpi, | |
800 | vcc->vci); | |
801 | } | |
802 | } else { | |
1e615df6 | 803 | for(i = 0; i < VCC_HTABLE_SIZE; i++){ |
9c54004e DW |
804 | head = &vcc_hash[i]; |
805 | sk_for_each(s, node, head) { | |
806 | num_found ++; | |
807 | vcc = atm_sk(s); | |
808 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
809 | vcc->dev->number, | |
810 | vcc->vpi, | |
811 | vcc->vci); | |
812 | } | |
813 | } | |
814 | } | |
815 | read_unlock(&vcc_sklist_lock); | |
816 | return num_found; | |
817 | } | |
818 | ||
1e615df6 DW |
819 | static void release_vccs(struct atm_dev *dev) |
820 | { | |
821 | int i; | |
822 | ||
823 | write_lock_irq(&vcc_sklist_lock); | |
824 | for (i = 0; i < VCC_HTABLE_SIZE; i++) { | |
825 | struct hlist_head *head = &vcc_hash[i]; | |
826 | struct hlist_node *node, *tmp; | |
827 | struct sock *s; | |
828 | struct atm_vcc *vcc; | |
829 | ||
830 | sk_for_each_safe(s, node, tmp, head) { | |
831 | vcc = atm_sk(s); | |
832 | if (vcc->dev == dev) { | |
833 | vcc_release_async(vcc, -EPIPE); | |
834 | sk_del_node_init(s); | |
835 | } | |
836 | } | |
837 | } | |
838 | write_unlock_irq(&vcc_sklist_lock); | |
839 | } | |
840 | ||
9c54004e DW |
841 | |
842 | static int popen(struct atm_vcc *vcc) | |
843 | { | |
844 | struct solos_card *card = vcc->dev->dev_data; | |
845 | struct sk_buff *skb; | |
846 | struct pkt_hdr *header; | |
847 | ||
b28a4b9a DW |
848 | if (vcc->qos.aal != ATM_AAL5) { |
849 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
850 | vcc->qos.aal); | |
851 | return -EINVAL; | |
852 | } | |
853 | ||
9c54004e DW |
854 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
855 | if (!skb && net_ratelimit()) { | |
856 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
857 | return -ENOMEM; | |
858 | } | |
859 | header = (void *)skb_put(skb, sizeof(*header)); | |
860 | ||
b76811af | 861 | header->size = cpu_to_le16(0); |
9c54004e DW |
862 | header->vpi = cpu_to_le16(vcc->vpi); |
863 | header->vci = cpu_to_le16(vcc->vci); | |
864 | header->type = cpu_to_le16(PKT_POPEN); | |
865 | ||
866 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
867 | ||
bdc54625 | 868 | set_bit(ATM_VF_ADDR, &vcc->flags); |
9c54004e DW |
869 | set_bit(ATM_VF_READY, &vcc->flags); |
870 | list_vccs(0); | |
871 | ||
9c54004e DW |
872 | |
873 | return 0; | |
874 | } | |
875 | ||
876 | static void pclose(struct atm_vcc *vcc) | |
877 | { | |
878 | struct solos_card *card = vcc->dev->dev_data; | |
879 | struct sk_buff *skb; | |
880 | struct pkt_hdr *header; | |
881 | ||
882 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
883 | if (!skb) { | |
884 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
885 | return; | |
886 | } | |
887 | header = (void *)skb_put(skb, sizeof(*header)); | |
888 | ||
b76811af | 889 | header->size = cpu_to_le16(0); |
9c54004e DW |
890 | header->vpi = cpu_to_le16(vcc->vpi); |
891 | header->vci = cpu_to_le16(vcc->vci); | |
892 | header->type = cpu_to_le16(PKT_PCLOSE); | |
893 | ||
894 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
895 | ||
9c54004e DW |
896 | clear_bit(ATM_VF_ADDR, &vcc->flags); |
897 | clear_bit(ATM_VF_READY, &vcc->flags); | |
898 | ||
899 | return; | |
900 | } | |
901 | ||
902 | static int print_buffer(struct sk_buff *buf) | |
903 | { | |
904 | int len,i; | |
905 | char msg[500]; | |
906 | char item[10]; | |
907 | ||
908 | len = buf->len; | |
909 | for (i = 0; i < len; i++){ | |
910 | if(i % 8 == 0) | |
911 | sprintf(msg, "%02X: ", i); | |
912 | ||
913 | sprintf(item,"%02X ",*(buf->data + i)); | |
914 | strcat(msg, item); | |
915 | if(i % 8 == 7) { | |
916 | sprintf(item, "\n"); | |
917 | strcat(msg, item); | |
918 | printk(KERN_DEBUG "%s", msg); | |
919 | } | |
920 | } | |
921 | if (i % 8 != 0) { | |
922 | sprintf(item, "\n"); | |
923 | strcat(msg, item); | |
924 | printk(KERN_DEBUG "%s", msg); | |
925 | } | |
926 | printk(KERN_DEBUG "\n"); | |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
931 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
932 | struct atm_vcc *vcc) | |
933 | { | |
934 | int old_len; | |
f69e4170 | 935 | unsigned long flags; |
9c54004e | 936 | |
90937231 | 937 | SKB_CB(skb)->vcc = vcc; |
9c54004e | 938 | |
f69e4170 | 939 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
9c54004e DW |
940 | old_len = skb_queue_len(&card->tx_queue[port]); |
941 | skb_queue_tail(&card->tx_queue[port], skb); | |
35c2221b | 942 | if (!old_len) |
f69e4170 | 943 | card->tx_mask |= (1 << port); |
f69e4170 | 944 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); |
9c54004e | 945 | |
f69e4170 DW |
946 | /* Theoretically we could just schedule the tasklet here, but |
947 | that introduces latency we don't want -- it's noticeable */ | |
9c54004e DW |
948 | if (!old_len) |
949 | fpga_tx(card); | |
950 | } | |
951 | ||
35c2221b | 952 | static uint32_t fpga_tx(struct solos_card *card) |
9c54004e | 953 | { |
35c2221b | 954 | uint32_t tx_pending, card_flags; |
9c54004e DW |
955 | uint32_t tx_started = 0; |
956 | struct sk_buff *skb; | |
957 | struct atm_vcc *vcc; | |
958 | unsigned char port; | |
959 | unsigned long flags; | |
960 | ||
961 | spin_lock_irqsave(&card->tx_lock, flags); | |
35c2221b DW |
962 | |
963 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
964 | /* | |
965 | * The queue lock is required for _writing_ to tx_mask, but we're | |
966 | * OK to read it here without locking. The only potential update | |
967 | * that we could race with is in fpga_queue() where it sets a bit | |
968 | * for a new port... but it's going to call this function again if | |
969 | * it's doing that, anyway. | |
970 | */ | |
971 | tx_pending = card->tx_mask & ~card_flags; | |
972 | ||
973 | for (port = 0; tx_pending; tx_pending >>= 1, port++) { | |
974 | if (tx_pending & 1) { | |
eaf83e39 | 975 | struct sk_buff *oldskb = card->tx_skb[port]; |
eaf83e39 DW |
976 | if (oldskb) |
977 | pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, | |
978 | oldskb->len, PCI_DMA_TODEVICE); | |
35c2221b | 979 | |
9c54004e DW |
980 | spin_lock(&card->tx_queue_lock); |
981 | skb = skb_dequeue(&card->tx_queue[port]); | |
f69e4170 DW |
982 | if (!skb) |
983 | card->tx_mask &= ~(1 << port); | |
9c54004e DW |
984 | spin_unlock(&card->tx_queue_lock); |
985 | ||
eaf83e39 DW |
986 | if (skb && !card->using_dma) { |
987 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
bdc54625 | 988 | tx_started |= 1 << port; |
eaf83e39 DW |
989 | oldskb = skb; /* We're done with this skb already */ |
990 | } else if (skb && card->using_dma) { | |
991 | SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data, | |
992 | skb->len, PCI_DMA_TODEVICE); | |
993 | iowrite32(SKB_CB(skb)->dma_addr, | |
994 | card->config_regs + TX_DMA_ADDR(port)); | |
995 | } | |
996 | ||
997 | if (!oldskb) | |
9c54004e DW |
998 | continue; |
999 | ||
eaf83e39 | 1000 | /* Clean up and free oldskb now it's gone */ |
9c54004e DW |
1001 | if (atmdebug) { |
1002 | dev_info(&card->dev->dev, "Transmitted: port %d\n", | |
1003 | port); | |
eaf83e39 | 1004 | print_buffer(oldskb); |
9c54004e | 1005 | } |
90937231 | 1006 | |
eaf83e39 | 1007 | vcc = SKB_CB(oldskb)->vcc; |
90937231 | 1008 | |
eaf83e39 DW |
1009 | if (vcc) { |
1010 | atomic_inc(&vcc->stats->tx); | |
1011 | solos_pop(vcc, oldskb); | |
1012 | } else | |
1013 | dev_kfree_skb_irq(oldskb); | |
90937231 | 1014 | |
9c54004e DW |
1015 | } |
1016 | } | |
bdc54625 | 1017 | /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ |
9c54004e DW |
1018 | if (tx_started) |
1019 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
1020 | ||
1021 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
35c2221b | 1022 | return card_flags; |
9c54004e DW |
1023 | } |
1024 | ||
1025 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
1026 | { | |
1027 | struct solos_card *card = vcc->dev->dev_data; | |
9c54004e | 1028 | struct pkt_hdr *header; |
b76811af | 1029 | int pktlen; |
9c54004e | 1030 | |
b76811af DW |
1031 | pktlen = skb->len; |
1032 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
1033 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
1034 | solos_pop(vcc, skb); | |
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
1039 | int expand_by = 0; | |
1040 | int ret; | |
1041 | ||
1042 | if (skb_headroom(skb) < sizeof(*header)) | |
1043 | expand_by = sizeof(*header) - skb_headroom(skb); | |
1044 | ||
1045 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
1046 | if (ret) { | |
4306cad6 | 1047 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
1048 | solos_pop(vcc, skb); |
1049 | return ret; | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | header = (void *)skb_push(skb, sizeof(*header)); | |
1054 | ||
b76811af DW |
1055 | /* This does _not_ include the size of the header */ |
1056 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1057 | header->vpi = cpu_to_le16(vcc->vpi); |
1058 | header->vci = cpu_to_le16(vcc->vci); | |
1059 | header->type = cpu_to_le16(PKT_DATA); | |
1060 | ||
1061 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | static struct atmdev_ops fpga_ops = { | |
1067 | .open = popen, | |
1068 | .close = pclose, | |
1069 | .ioctl = NULL, | |
1070 | .getsockopt = NULL, | |
1071 | .setsockopt = NULL, | |
1072 | .send = psend, | |
1073 | .send_oam = NULL, | |
1074 | .phy_put = NULL, | |
1075 | .phy_get = NULL, | |
1076 | .change_qos = NULL, | |
1077 | .proc_read = NULL, | |
1078 | .owner = THIS_MODULE | |
1079 | }; | |
1080 | ||
1081 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1082 | { | |
cd5549e0 | 1083 | int err; |
9c54004e DW |
1084 | uint16_t fpga_ver; |
1085 | uint8_t major_ver, minor_ver; | |
1086 | uint32_t data32; | |
1087 | struct solos_card *card; | |
1088 | ||
9c54004e DW |
1089 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1090 | if (!card) | |
1091 | return -ENOMEM; | |
1092 | ||
1093 | card->dev = dev; | |
fa755b9f | 1094 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1095 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1096 | |
1097 | err = pci_enable_device(dev); | |
1098 | if (err) { | |
1099 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1100 | goto out; | |
1101 | } | |
1102 | ||
90937231 DW |
1103 | err = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
1104 | if (err) { | |
1105 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1106 | goto out; | |
1107 | } | |
1108 | ||
9c54004e DW |
1109 | err = pci_request_regions(dev, "solos"); |
1110 | if (err) { | |
1111 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1112 | goto out; | |
1113 | } | |
1114 | ||
1115 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1116 | if (!card->config_regs) { | |
1117 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
1118 | goto out_release_regions; | |
1119 | } | |
1120 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1121 | if (!card->buffers) { | |
1122 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
1123 | goto out_unmap_config; | |
1124 | } | |
1125 | ||
cc3657e1 DW |
1126 | if (reset) { |
1127 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1128 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
1129 | ||
1130 | iowrite32(0, card->config_regs + FPGA_MODE); | |
1131 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
1132 | } | |
9c54004e DW |
1133 | |
1134 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1135 | fpga_ver = (data32 & 0x0000FFFF); | |
1136 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1137 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
4dbedf43 NW |
1138 | card->fpga_version = FPGA_VERSION(major_ver,minor_ver); |
1139 | if (card->fpga_version > LEGACY_BUFFERS) | |
1140 | card->buffer_size = BUF_SIZE; | |
1141 | else | |
1142 | card->buffer_size = OLD_BUF_SIZE; | |
9c54004e DW |
1143 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", |
1144 | major_ver, minor_ver, fpga_ver); | |
1145 | ||
4dbedf43 | 1146 | if (card->fpga_version >= DMA_SUPPORTED){ |
90937231 | 1147 | card->using_dma = 1; |
4dbedf43 NW |
1148 | } else { |
1149 | card->using_dma = 0; | |
eab50f73 DW |
1150 | /* Set RX empty flag for all ports */ |
1151 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1152 | } | |
90937231 | 1153 | |
0fc36aa5 NW |
1154 | data32 = ioread32(card->config_regs + PORTS); |
1155 | card->nr_ports = (data32 & 0x000000FF); | |
9c54004e | 1156 | |
9c54004e | 1157 | pci_set_drvdata(dev, card); |
fa755b9f | 1158 | |
9c54004e DW |
1159 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1160 | spin_lock_init(&card->tx_lock); | |
1161 | spin_lock_init(&card->tx_queue_lock); | |
1162 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1163 | spin_lock_init(&card->param_queue_lock); |
1164 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1165 | |
fcd82664 | 1166 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
9c54004e | 1167 | "solos-pci", card); |
fa755b9f | 1168 | if (err) { |
9c54004e | 1169 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1170 | goto out_unmap_both; |
1171 | } | |
9c54004e | 1172 | |
9c54004e DW |
1173 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); |
1174 | ||
fa755b9f DW |
1175 | if (fpga_upgrade) |
1176 | flash_upgrade(card, 0); | |
1177 | ||
1178 | if (firmware_upgrade) | |
1179 | flash_upgrade(card, 1); | |
1180 | ||
4dbedf43 NW |
1181 | if (db_fpga_upgrade) |
1182 | flash_upgrade(card, 2); | |
1183 | ||
1184 | if (db_firmware_upgrade) | |
1185 | flash_upgrade(card, 3); | |
1186 | ||
fa755b9f DW |
1187 | err = atm_init(card); |
1188 | if (err) | |
1189 | goto out_free_irq; | |
1190 | ||
9c54004e DW |
1191 | return 0; |
1192 | ||
fa755b9f DW |
1193 | out_free_irq: |
1194 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1195 | free_irq(dev->irq, card); | |
1196 | tasklet_kill(&card->tlet); | |
1197 | ||
9c54004e | 1198 | out_unmap_both: |
fa755b9f | 1199 | pci_set_drvdata(dev, NULL); |
9c54004e DW |
1200 | pci_iounmap(dev, card->config_regs); |
1201 | out_unmap_config: | |
1202 | pci_iounmap(dev, card->buffers); | |
1203 | out_release_regions: | |
1204 | pci_release_regions(dev); | |
1205 | out: | |
1206 | return err; | |
1207 | } | |
1208 | ||
1209 | static int atm_init(struct solos_card *card) | |
1210 | { | |
1211 | int i; | |
1212 | ||
9c54004e | 1213 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1214 | struct sk_buff *skb; |
1215 | struct pkt_hdr *header; | |
1216 | ||
9c54004e DW |
1217 | skb_queue_head_init(&card->tx_queue[i]); |
1218 | skb_queue_head_init(&card->cli_queue[i]); | |
1219 | ||
1220 | card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); | |
1221 | if (!card->atmdev[i]) { | |
1222 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1223 | atm_remove(card); | |
1224 | return -ENODEV; | |
1225 | } | |
1226 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1227 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1228 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1229 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1230 | |
1231 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1232 | ||
1233 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1234 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1235 | card->atmdev[i]->dev_data = card; | |
1236 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
87ebb186 DW |
1237 | card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN; |
1238 | ||
1239 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
1240 | if (!skb) { | |
1241 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1242 | continue; | |
1243 | } | |
1244 | ||
1245 | header = (void *)skb_put(skb, sizeof(*header)); | |
1246 | ||
1247 | header->size = cpu_to_le16(0); | |
1248 | header->vpi = cpu_to_le16(0); | |
1249 | header->vci = cpu_to_le16(0); | |
1250 | header->type = cpu_to_le16(PKT_STATUS); | |
1251 | ||
1252 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1253 | } |
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | static void atm_remove(struct solos_card *card) | |
1258 | { | |
1259 | int i; | |
1260 | ||
1261 | for (i = 0; i < card->nr_ports; i++) { | |
1262 | if (card->atmdev[i]) { | |
97d759d3 DW |
1263 | struct sk_buff *skb; |
1264 | ||
9c54004e | 1265 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); |
c0fe3026 DW |
1266 | |
1267 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e | 1268 | atm_dev_deregister(card->atmdev[i]); |
97d759d3 DW |
1269 | |
1270 | skb = card->rx_skb[i]; | |
1271 | if (skb) { | |
1272 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, | |
1273 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
1274 | dev_kfree_skb(skb); | |
1275 | } | |
1276 | skb = card->tx_skb[i]; | |
1277 | if (skb) { | |
1278 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, | |
1279 | skb->len, PCI_DMA_TODEVICE); | |
1280 | dev_kfree_skb(skb); | |
1281 | } | |
1282 | while ((skb = skb_dequeue(&card->tx_queue[i]))) | |
1283 | dev_kfree_skb(skb); | |
1284 | ||
9c54004e DW |
1285 | } |
1286 | } | |
1287 | } | |
1288 | ||
1289 | static void fpga_remove(struct pci_dev *dev) | |
1290 | { | |
1291 | struct solos_card *card = pci_get_drvdata(dev); | |
97d759d3 DW |
1292 | |
1293 | /* Disable IRQs */ | |
1294 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1295 | ||
1296 | /* Reset FPGA */ | |
1297 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1298 | (void)ioread32(card->config_regs + FPGA_MODE); | |
9c54004e | 1299 | |
9c54004e DW |
1300 | atm_remove(card); |
1301 | ||
9c54004e DW |
1302 | free_irq(dev->irq, card); |
1303 | tasklet_kill(&card->tlet); | |
1304 | ||
97d759d3 DW |
1305 | /* Release device from reset */ |
1306 | iowrite32(0, card->config_regs + FPGA_MODE); | |
1307 | (void)ioread32(card->config_regs + FPGA_MODE); | |
1308 | ||
9c54004e DW |
1309 | pci_iounmap(dev, card->buffers); |
1310 | pci_iounmap(dev, card->config_regs); | |
1311 | ||
9c54004e DW |
1312 | pci_release_regions(dev); |
1313 | pci_disable_device(dev); | |
1314 | ||
1315 | pci_set_drvdata(dev, NULL); | |
1316 | kfree(card); | |
9c54004e DW |
1317 | } |
1318 | ||
1319 | static struct pci_device_id fpga_pci_tbl[] __devinitdata = { | |
1320 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
1321 | { 0, } | |
1322 | }; | |
1323 | ||
1324 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1325 | ||
1326 | static struct pci_driver fpga_driver = { | |
1327 | .name = "solos", | |
1328 | .id_table = fpga_pci_tbl, | |
1329 | .probe = fpga_probe, | |
1330 | .remove = fpga_remove, | |
1331 | }; | |
1332 | ||
1333 | ||
1334 | static int __init solos_pci_init(void) | |
1335 | { | |
1336 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); | |
1337 | return pci_register_driver(&fpga_driver); | |
1338 | } | |
1339 | ||
1340 | static void __exit solos_pci_exit(void) | |
1341 | { | |
1342 | pci_unregister_driver(&fpga_driver); | |
1343 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1344 | } | |
1345 | ||
1346 | module_init(solos_pci_init); | |
1347 | module_exit(solos_pci_exit); |