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> | |
5a0e3ad6 | 43 | #include <linux/slab.h> |
9c54004e | 44 | |
7c4015bd | 45 | #define VERSION "0.07" |
9c54004e DW |
46 | #define PTAG "solos-pci" |
47 | ||
48 | #define CONFIG_RAM_SIZE 128 | |
49 | #define FLAGS_ADDR 0x7C | |
50 | #define IRQ_EN_ADDR 0x78 | |
51 | #define FPGA_VER 0x74 | |
52 | #define IRQ_CLEAR 0x70 | |
7c4015bd SF |
53 | #define WRITE_FLASH 0x6C |
54 | #define PORTS 0x68 | |
55 | #define FLASH_BLOCK 0x64 | |
56 | #define FLASH_BUSY 0x60 | |
57 | #define FPGA_MODE 0x5C | |
58 | #define FLASH_MODE 0x58 | |
90937231 DW |
59 | #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) |
60 | #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) | |
9c54004e DW |
61 | |
62 | #define DATA_RAM_SIZE 32768 | |
4dbedf43 NW |
63 | #define BUF_SIZE 2048 |
64 | #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/ | |
7c4015bd SF |
65 | #define FPGA_PAGE 528 /* FPGA flash page size*/ |
66 | #define SOLOS_PAGE 512 /* Solos flash page size*/ | |
67 | #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/ | |
68 | #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/ | |
9c54004e | 69 | |
4dbedf43 NW |
70 | #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2) |
71 | #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size)) | |
72 | #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2) | |
9c54004e | 73 | |
eaf83e39 DW |
74 | #define RX_DMA_SIZE 2048 |
75 | ||
4dbedf43 NW |
76 | #define FPGA_VERSION(a,b) (((a) << 8) + (b)) |
77 | #define LEGACY_BUFFERS 2 | |
78 | #define DMA_SUPPORTED 4 | |
79 | ||
cc3657e1 | 80 | static int reset = 0; |
9c54004e | 81 | static int atmdebug = 0; |
7c4015bd SF |
82 | static int firmware_upgrade = 0; |
83 | static int fpga_upgrade = 0; | |
4dbedf43 NW |
84 | static int db_firmware_upgrade = 0; |
85 | static int db_fpga_upgrade = 0; | |
9c54004e DW |
86 | |
87 | struct pkt_hdr { | |
88 | __le16 size; | |
89 | __le16 vpi; | |
90 | __le16 vci; | |
91 | __le16 type; | |
92 | }; | |
93 | ||
90937231 DW |
94 | struct solos_skb_cb { |
95 | struct atm_vcc *vcc; | |
96 | uint32_t dma_addr; | |
97 | }; | |
98 | ||
99 | ||
100 | #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) | |
101 | ||
9c54004e DW |
102 | #define PKT_DATA 0 |
103 | #define PKT_COMMAND 1 | |
104 | #define PKT_POPEN 3 | |
105 | #define PKT_PCLOSE 4 | |
87ebb186 | 106 | #define PKT_STATUS 5 |
9c54004e DW |
107 | |
108 | struct solos_card { | |
109 | void __iomem *config_regs; | |
110 | void __iomem *buffers; | |
111 | int nr_ports; | |
f69e4170 | 112 | int tx_mask; |
9c54004e DW |
113 | struct pci_dev *dev; |
114 | struct atm_dev *atmdev[4]; | |
115 | struct tasklet_struct tlet; | |
116 | spinlock_t tx_lock; | |
117 | spinlock_t tx_queue_lock; | |
118 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
119 | spinlock_t param_queue_lock; |
120 | struct list_head param_queue; | |
9c54004e DW |
121 | struct sk_buff_head tx_queue[4]; |
122 | struct sk_buff_head cli_queue[4]; | |
90937231 DW |
123 | struct sk_buff *tx_skb[4]; |
124 | struct sk_buff *rx_skb[4]; | |
01e2ffac | 125 | wait_queue_head_t param_wq; |
fa755b9f | 126 | wait_queue_head_t fw_wq; |
90937231 | 127 | int using_dma; |
4dbedf43 NW |
128 | int fpga_version; |
129 | int buffer_size; | |
9c54004e DW |
130 | }; |
131 | ||
01e2ffac DW |
132 | |
133 | struct solos_param { | |
134 | struct list_head list; | |
135 | pid_t pid; | |
136 | int port; | |
137 | struct sk_buff *response; | |
9c54004e DW |
138 | }; |
139 | ||
140 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) | |
141 | ||
142 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
143 | MODULE_DESCRIPTION("Solos PCI driver"); | |
144 | MODULE_VERSION(VERSION); | |
145 | MODULE_LICENSE("GPL"); | |
9fca79d6 BH |
146 | MODULE_FIRMWARE("solos-FPGA.bin"); |
147 | MODULE_FIRMWARE("solos-Firmware.bin"); | |
148 | MODULE_FIRMWARE("solos-db-FPGA.bin"); | |
cc3657e1 | 149 | MODULE_PARM_DESC(reset, "Reset Solos chips on startup"); |
9c54004e | 150 | MODULE_PARM_DESC(atmdebug, "Print ATM data"); |
7c4015bd SF |
151 | MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); |
152 | MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); | |
4dbedf43 NW |
153 | MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade"); |
154 | MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade"); | |
cc3657e1 | 155 | module_param(reset, int, 0444); |
4306cad6 | 156 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
157 | module_param(firmware_upgrade, int, 0444); |
158 | module_param(fpga_upgrade, int, 0444); | |
4dbedf43 NW |
159 | module_param(db_firmware_upgrade, int, 0444); |
160 | module_param(db_fpga_upgrade, int, 0444); | |
9c54004e DW |
161 | |
162 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
163 | struct atm_vcc *vcc); | |
35c2221b | 164 | static uint32_t fpga_tx(struct solos_card *); |
9c54004e DW |
165 | static irqreturn_t solos_irq(int irq, void *dev_id); |
166 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
167 | static int list_vccs(int vci); | |
1e615df6 | 168 | static void release_vccs(struct atm_dev *dev); |
9c54004e DW |
169 | static int atm_init(struct solos_card *); |
170 | static void atm_remove(struct solos_card *); | |
171 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
172 | static void solos_bh(unsigned long); | |
173 | static int print_buffer(struct sk_buff *buf); | |
174 | ||
175 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
176 | { | |
177 | if (vcc->pop) | |
178 | vcc->pop(vcc, skb); | |
179 | else | |
180 | dev_kfree_skb_any(skb); | |
181 | } | |
182 | ||
01e2ffac DW |
183 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
184 | char *buf) | |
185 | { | |
186 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
187 | struct solos_card *card = atmdev->dev_data; | |
188 | struct solos_param prm; | |
189 | struct sk_buff *skb; | |
190 | struct pkt_hdr *header; | |
191 | int buflen; | |
192 | ||
193 | buflen = strlen(attr->attr.name) + 10; | |
194 | ||
3456b221 | 195 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
196 | if (!skb) { |
197 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
198 | return -ENOMEM; | |
199 | } | |
200 | ||
201 | header = (void *)skb_put(skb, sizeof(*header)); | |
202 | ||
203 | buflen = snprintf((void *)&header[1], buflen - 1, | |
204 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
205 | skb_put(skb, buflen); | |
206 | ||
207 | header->size = cpu_to_le16(buflen); | |
208 | header->vpi = cpu_to_le16(0); | |
209 | header->vci = cpu_to_le16(0); | |
210 | header->type = cpu_to_le16(PKT_COMMAND); | |
211 | ||
212 | prm.pid = current->pid; | |
213 | prm.response = NULL; | |
214 | prm.port = SOLOS_CHAN(atmdev); | |
215 | ||
216 | spin_lock_irq(&card->param_queue_lock); | |
217 | list_add(&prm.list, &card->param_queue); | |
218 | spin_unlock_irq(&card->param_queue_lock); | |
219 | ||
220 | fpga_queue(card, prm.port, skb, NULL); | |
221 | ||
222 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
223 | ||
224 | spin_lock_irq(&card->param_queue_lock); | |
225 | list_del(&prm.list); | |
226 | spin_unlock_irq(&card->param_queue_lock); | |
227 | ||
228 | if (!prm.response) | |
229 | return -EIO; | |
230 | ||
231 | buflen = prm.response->len; | |
232 | memcpy(buf, prm.response->data, buflen); | |
233 | kfree_skb(prm.response); | |
234 | ||
235 | return buflen; | |
236 | } | |
237 | ||
238 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
239 | const char *buf, size_t count) | |
240 | { | |
241 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
242 | struct solos_card *card = atmdev->dev_data; | |
243 | struct solos_param prm; | |
244 | struct sk_buff *skb; | |
245 | struct pkt_hdr *header; | |
246 | int buflen; | |
247 | ssize_t ret; | |
248 | ||
249 | buflen = strlen(attr->attr.name) + 11 + count; | |
250 | ||
3456b221 | 251 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
252 | if (!skb) { |
253 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
254 | return -ENOMEM; | |
255 | } | |
256 | ||
257 | header = (void *)skb_put(skb, sizeof(*header)); | |
258 | ||
259 | buflen = snprintf((void *)&header[1], buflen - 1, | |
260 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
261 | ||
262 | skb_put(skb, buflen); | |
263 | header->size = cpu_to_le16(buflen); | |
264 | header->vpi = cpu_to_le16(0); | |
265 | header->vci = cpu_to_le16(0); | |
266 | header->type = cpu_to_le16(PKT_COMMAND); | |
267 | ||
268 | prm.pid = current->pid; | |
269 | prm.response = NULL; | |
270 | prm.port = SOLOS_CHAN(atmdev); | |
271 | ||
272 | spin_lock_irq(&card->param_queue_lock); | |
273 | list_add(&prm.list, &card->param_queue); | |
274 | spin_unlock_irq(&card->param_queue_lock); | |
275 | ||
276 | fpga_queue(card, prm.port, skb, NULL); | |
277 | ||
278 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
279 | ||
280 | spin_lock_irq(&card->param_queue_lock); | |
281 | list_del(&prm.list); | |
282 | spin_unlock_irq(&card->param_queue_lock); | |
283 | ||
284 | skb = prm.response; | |
285 | ||
286 | if (!skb) | |
287 | return -EIO; | |
288 | ||
289 | buflen = skb->len; | |
290 | ||
291 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
292 | if (skb->data[buflen - 1] == '\n') | |
293 | buflen--; | |
294 | ||
295 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
296 | ret = count; | |
297 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
298 | ret = -EIO; | |
299 | else { | |
300 | /* We know we have enough space allocated for this; we allocated | |
301 | it ourselves */ | |
302 | skb->data[buflen] = 0; | |
303 | ||
304 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
305 | skb->data); | |
306 | ret = -EIO; | |
307 | } | |
308 | kfree_skb(skb); | |
309 | ||
310 | return ret; | |
311 | } | |
312 | ||
87ebb186 DW |
313 | static char *next_string(struct sk_buff *skb) |
314 | { | |
315 | int i = 0; | |
316 | char *this = skb->data; | |
c6428e52 DW |
317 | |
318 | for (i = 0; i < skb->len; i++) { | |
87ebb186 DW |
319 | if (this[i] == '\n') { |
320 | this[i] = 0; | |
c6428e52 | 321 | skb_pull(skb, i + 1); |
87ebb186 DW |
322 | return this; |
323 | } | |
c6428e52 DW |
324 | if (!isprint(this[i])) |
325 | return NULL; | |
87ebb186 DW |
326 | } |
327 | return NULL; | |
328 | } | |
329 | ||
330 | /* | |
331 | * Status packet has fields separated by \n, starting with a version number | |
332 | * for the information therein. Fields are.... | |
333 | * | |
334 | * packet version | |
87ebb186 | 335 | * RxBitRate (version >= 1) |
f87b2ed2 | 336 | * TxBitRate (version >= 1) |
87ebb186 | 337 | * State (version >= 1) |
f87b2ed2 DW |
338 | * LocalSNRMargin (version >= 1) |
339 | * LocalLineAttn (version >= 1) | |
87ebb186 DW |
340 | */ |
341 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
342 | { | |
f87b2ed2 DW |
343 | char *str, *end, *state_str, *snr, *attn; |
344 | int ver, rate_up, rate_down; | |
87ebb186 DW |
345 | |
346 | if (!card->atmdev[port]) | |
347 | return -ENODEV; | |
348 | ||
349 | str = next_string(skb); | |
350 | if (!str) | |
351 | return -EIO; | |
352 | ||
353 | ver = simple_strtol(str, NULL, 10); | |
354 | if (ver < 1) { | |
355 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
356 | ver); | |
357 | return -EIO; | |
358 | } | |
359 | ||
360 | str = next_string(skb); | |
c6428e52 DW |
361 | if (!str) |
362 | return -EIO; | |
95852f48 DW |
363 | if (!strcmp(str, "ERROR")) { |
364 | dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n", | |
365 | port); | |
366 | return 0; | |
367 | } | |
368 | ||
f87b2ed2 | 369 | rate_down = simple_strtol(str, &end, 10); |
87ebb186 DW |
370 | if (*end) |
371 | return -EIO; | |
372 | ||
373 | str = next_string(skb); | |
c6428e52 DW |
374 | if (!str) |
375 | return -EIO; | |
f87b2ed2 | 376 | rate_up = simple_strtol(str, &end, 10); |
87ebb186 DW |
377 | if (*end) |
378 | return -EIO; | |
379 | ||
af780656 | 380 | state_str = next_string(skb); |
c6428e52 DW |
381 | if (!state_str) |
382 | return -EIO; | |
f87b2ed2 DW |
383 | |
384 | /* Anything but 'Showtime' is down */ | |
385 | if (strcmp(state_str, "Showtime")) { | |
49d49106 | 386 | atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST); |
1e615df6 | 387 | release_vccs(card->atmdev[port]); |
f87b2ed2 DW |
388 | dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str); |
389 | return 0; | |
1e615df6 | 390 | } |
87ebb186 | 391 | |
f87b2ed2 | 392 | snr = next_string(skb); |
6cf5767c | 393 | if (!snr) |
f87b2ed2 DW |
394 | return -EIO; |
395 | attn = next_string(skb); | |
396 | if (!attn) | |
397 | return -EIO; | |
398 | ||
399 | dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n", | |
400 | port, state_str, rate_down/1000, rate_up/1000, | |
401 | snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn); | |
402 | ||
c6428e52 | 403 | card->atmdev[port]->link_rate = rate_down / 424; |
49d49106 | 404 | atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND); |
87ebb186 | 405 | |
87ebb186 DW |
406 | return 0; |
407 | } | |
408 | ||
01e2ffac DW |
409 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
410 | { | |
411 | struct solos_param *prm; | |
412 | unsigned long flags; | |
413 | int cmdpid; | |
414 | int found = 0; | |
415 | ||
416 | if (skb->len < 7) | |
417 | return 0; | |
418 | ||
419 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
420 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
421 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
422 | skb->data[6] != '\n') | |
423 | return 0; | |
424 | ||
425 | cmdpid = simple_strtol(&skb->data[1], NULL, 10); | |
426 | ||
427 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
428 | list_for_each_entry(prm, &card->param_queue, list) { | |
429 | if (prm->port == port && prm->pid == cmdpid) { | |
430 | prm->response = skb; | |
431 | skb_pull(skb, 7); | |
432 | wake_up(&card->param_wq); | |
433 | found = 1; | |
434 | break; | |
435 | } | |
436 | } | |
437 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
438 | return found; | |
439 | } | |
440 | ||
9c54004e DW |
441 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
442 | char *buf) | |
443 | { | |
444 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
445 | struct solos_card *card = atmdev->dev_data; | |
446 | struct sk_buff *skb; | |
f1ee89d5 | 447 | unsigned int len; |
9c54004e DW |
448 | |
449 | spin_lock(&card->cli_queue_lock); | |
450 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
451 | spin_unlock(&card->cli_queue_lock); | |
452 | if(skb == NULL) | |
453 | return sprintf(buf, "No data.\n"); | |
454 | ||
f1ee89d5 JS |
455 | len = skb->len; |
456 | memcpy(buf, skb->data, len); | |
457 | dev_dbg(&card->dev->dev, "len: %d\n", len); | |
9c54004e DW |
458 | |
459 | kfree_skb(skb); | |
f1ee89d5 | 460 | return len; |
9c54004e DW |
461 | } |
462 | ||
463 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
464 | { | |
465 | struct sk_buff *skb; | |
466 | struct pkt_hdr *header; | |
467 | ||
9c54004e DW |
468 | if (size > (BUF_SIZE - sizeof(*header))) { |
469 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
470 | return 0; | |
471 | } | |
472 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
473 | if (!skb) { | |
474 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
475 | return 0; | |
476 | } | |
477 | ||
478 | header = (void *)skb_put(skb, sizeof(*header)); | |
479 | ||
480 | header->size = cpu_to_le16(size); | |
481 | header->vpi = cpu_to_le16(0); | |
482 | header->vci = cpu_to_le16(0); | |
483 | header->type = cpu_to_le16(PKT_COMMAND); | |
484 | ||
485 | memcpy(skb_put(skb, size), buf, size); | |
486 | ||
487 | fpga_queue(card, dev, skb, NULL); | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
492 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
493 | const char *buf, size_t count) | |
494 | { | |
495 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
496 | struct solos_card *card = atmdev->dev_data; | |
497 | int err; | |
498 | ||
499 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
500 | ||
501 | return err?:count; | |
502 | } | |
503 | ||
504 | static DEVICE_ATTR(console, 0644, console_show, console_store); | |
505 | ||
d057f0a4 DW |
506 | |
507 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
508 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
509 | ||
510 | #include "solos-attrlist.c" | |
511 | ||
512 | #undef SOLOS_ATTR_RO | |
513 | #undef SOLOS_ATTR_RW | |
514 | ||
515 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
516 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
517 | ||
518 | static struct attribute *solos_attrs[] = { | |
519 | #include "solos-attrlist.c" | |
520 | NULL | |
521 | }; | |
522 | ||
523 | static struct attribute_group solos_attr_group = { | |
524 | .attrs = solos_attrs, | |
525 | .name = "parameters", | |
526 | }; | |
9c54004e | 527 | |
fa755b9f DW |
528 | static int flash_upgrade(struct solos_card *card, int chip) |
529 | { | |
530 | const struct firmware *fw; | |
531 | const char *fw_name; | |
7c4015bd SF |
532 | uint32_t data32 = 0; |
533 | int blocksize = 0; | |
534 | int numblocks = 0; | |
fa755b9f DW |
535 | int offset; |
536 | ||
7adcdb4c AM |
537 | switch (chip) { |
538 | case 0: | |
fa755b9f | 539 | fw_name = "solos-FPGA.bin"; |
7c4015bd | 540 | blocksize = FPGA_BLOCK; |
7adcdb4c AM |
541 | break; |
542 | case 1: | |
fa755b9f | 543 | fw_name = "solos-Firmware.bin"; |
7c4015bd | 544 | blocksize = SOLOS_BLOCK; |
7adcdb4c AM |
545 | break; |
546 | case 2: | |
4dbedf43 NW |
547 | if (card->fpga_version > LEGACY_BUFFERS){ |
548 | fw_name = "solos-db-FPGA.bin"; | |
549 | blocksize = FPGA_BLOCK; | |
550 | } else { | |
7adcdb4c AM |
551 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
552 | " daughter board upgrades\n"); | |
4dbedf43 NW |
553 | return -EPERM; |
554 | } | |
7adcdb4c AM |
555 | break; |
556 | case 3: | |
4dbedf43 NW |
557 | if (card->fpga_version > LEGACY_BUFFERS){ |
558 | fw_name = "solos-Firmware.bin"; | |
559 | blocksize = SOLOS_BLOCK; | |
560 | } else { | |
7adcdb4c AM |
561 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
562 | " daughter board upgrades\n"); | |
563 | return -EPERM; | |
4dbedf43 | 564 | } |
7adcdb4c AM |
565 | break; |
566 | default: | |
567 | return -ENODEV; | |
4dbedf43 | 568 | } |
fa755b9f DW |
569 | |
570 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
571 | return -ENOENT; | |
572 | ||
573 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
574 | ||
575 | numblocks = fw->size / blocksize; | |
576 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
577 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
578 | ||
7c4015bd SF |
579 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
580 | iowrite32(1, card->config_regs + FPGA_MODE); | |
581 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
7c4015bd | 582 | |
fa755b9f | 583 | /* Set mode to Chip Erase */ |
4dbedf43 NW |
584 | if(chip == 0 || chip == 2) |
585 | dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); | |
586 | if(chip == 1 || chip == 3) | |
587 | dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); | |
fa755b9f | 588 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); |
7c4015bd | 589 | |
7c4015bd | 590 | |
fa755b9f DW |
591 | iowrite32(1, card->config_regs + WRITE_FLASH); |
592 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
593 | ||
594 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
595 | int i; | |
596 | ||
597 | /* Clear write flag */ | |
7c4015bd | 598 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 599 | |
fa755b9f DW |
600 | /* Set mode to Block Write */ |
601 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
602 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
603 | ||
604 | /* Copy block to buffer, swapping each 16 bits */ | |
605 | for(i = 0; i < blocksize; i += 4) { | |
606 | uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
4dbedf43 NW |
607 | if(card->fpga_version > LEGACY_BUFFERS) |
608 | iowrite32(word, FLASH_BUF + i); | |
609 | else | |
610 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 611 | } |
fa755b9f DW |
612 | |
613 | /* Specify block number and then trigger flash write */ | |
614 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
615 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
616 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
617 | } |
618 | ||
fa755b9f DW |
619 | release_firmware(fw); |
620 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
621 | iowrite32(0, card->config_regs + FPGA_MODE); | |
622 | iowrite32(0, card->config_regs + FLASH_MODE); | |
623 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
624 | return 0; | |
7c4015bd SF |
625 | } |
626 | ||
9c54004e DW |
627 | static irqreturn_t solos_irq(int irq, void *dev_id) |
628 | { | |
629 | struct solos_card *card = dev_id; | |
630 | int handled = 1; | |
631 | ||
9c54004e | 632 | iowrite32(0, card->config_regs + IRQ_CLEAR); |
9c54004e | 633 | |
35c2221b | 634 | /* If we're up and running, just kick the tasklet to process TX/RX */ |
fa755b9f | 635 | if (card->atmdev[0]) |
9c54004e | 636 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
637 | else |
638 | wake_up(&card->fw_wq); | |
9c54004e | 639 | |
9c54004e DW |
640 | return IRQ_RETVAL(handled); |
641 | } | |
642 | ||
643 | void solos_bh(unsigned long card_arg) | |
644 | { | |
645 | struct solos_card *card = (void *)card_arg; | |
9c54004e | 646 | uint32_t card_flags; |
9c54004e | 647 | uint32_t rx_done = 0; |
35c2221b | 648 | int port; |
9c54004e | 649 | |
35c2221b DW |
650 | /* |
651 | * Since fpga_tx() is going to need to read the flags under its lock, | |
652 | * it can return them to us so that we don't have to hit PCI MMIO | |
653 | * again for the same information | |
654 | */ | |
655 | card_flags = fpga_tx(card); | |
9c54004e DW |
656 | |
657 | for (port = 0; port < card->nr_ports; port++) { | |
658 | if (card_flags & (0x10 << port)) { | |
90937231 | 659 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
660 | struct sk_buff *skb; |
661 | struct atm_vcc *vcc; | |
662 | int size; | |
663 | ||
90937231 DW |
664 | if (card->using_dma) { |
665 | skb = card->rx_skb[port]; | |
eaf83e39 | 666 | card->rx_skb[port] = NULL; |
9c54004e | 667 | |
eaf83e39 DW |
668 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, |
669 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
9c54004e | 670 | |
90937231 DW |
671 | header = (void *)skb->data; |
672 | size = le16_to_cpu(header->size); | |
673 | skb_put(skb, size + sizeof(*header)); | |
674 | skb_pull(skb, sizeof(*header)); | |
675 | } else { | |
676 | header = &_hdr; | |
9c54004e | 677 | |
90937231 | 678 | rx_done |= 0x10 << port; |
9c54004e | 679 | |
90937231 | 680 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 681 | |
90937231 | 682 | size = le16_to_cpu(header->size); |
78f857f2 NW |
683 | if (size > (card->buffer_size - sizeof(*header))){ |
684 | dev_warn(&card->dev->dev, "Invalid buffer size\n"); | |
685 | continue; | |
686 | } | |
9c54004e | 687 | |
90937231 DW |
688 | skb = alloc_skb(size + 1, GFP_ATOMIC); |
689 | if (!skb) { | |
690 | if (net_ratelimit()) | |
691 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
692 | continue; | |
693 | } | |
9c54004e | 694 | |
90937231 DW |
695 | memcpy_fromio(skb_put(skb, size), |
696 | RX_BUF(card, port) + sizeof(*header), | |
697 | size); | |
698 | } | |
9c54004e DW |
699 | if (atmdebug) { |
700 | dev_info(&card->dev->dev, "Received: device %d\n", port); | |
701 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", | |
90937231 DW |
702 | size, le16_to_cpu(header->vpi), |
703 | le16_to_cpu(header->vci)); | |
9c54004e DW |
704 | print_buffer(skb); |
705 | } | |
706 | ||
90937231 | 707 | switch (le16_to_cpu(header->type)) { |
9c54004e | 708 | case PKT_DATA: |
90937231 DW |
709 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
710 | le16_to_cpu(header->vci)); | |
9c54004e DW |
711 | if (!vcc) { |
712 | if (net_ratelimit()) | |
713 | dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n", | |
90937231 | 714 | le16_to_cpu(header->vci), le16_to_cpu(header->vpi), |
9c54004e DW |
715 | port); |
716 | continue; | |
717 | } | |
718 | atm_charge(vcc, skb->truesize); | |
719 | vcc->push(vcc, skb); | |
720 | atomic_inc(&vcc->stats->rx); | |
721 | break; | |
722 | ||
87ebb186 | 723 | case PKT_STATUS: |
95852f48 DW |
724 | if (process_status(card, port, skb) && |
725 | net_ratelimit()) { | |
726 | dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); | |
727 | print_buffer(skb); | |
728 | } | |
eaf83e39 | 729 | dev_kfree_skb_any(skb); |
87ebb186 DW |
730 | break; |
731 | ||
9c54004e DW |
732 | case PKT_COMMAND: |
733 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
734 | if (process_command(card, port, skb)) |
735 | break; | |
9c54004e DW |
736 | spin_lock(&card->cli_queue_lock); |
737 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
738 | if (net_ratelimit()) | |
739 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
740 | port); | |
eaf83e39 | 741 | dev_kfree_skb_any(skb); |
9c54004e DW |
742 | } else |
743 | skb_queue_tail(&card->cli_queue[port], skb); | |
744 | spin_unlock(&card->cli_queue_lock); | |
745 | break; | |
746 | } | |
747 | } | |
eaf83e39 DW |
748 | /* Allocate RX skbs for any ports which need them */ |
749 | if (card->using_dma && card->atmdev[port] && | |
750 | !card->rx_skb[port]) { | |
751 | struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC); | |
752 | if (skb) { | |
753 | SKB_CB(skb)->dma_addr = | |
754 | pci_map_single(card->dev, skb->data, | |
755 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
756 | iowrite32(SKB_CB(skb)->dma_addr, | |
757 | card->config_regs + RX_DMA_ADDR(port)); | |
758 | card->rx_skb[port] = skb; | |
759 | } else { | |
760 | if (net_ratelimit()) | |
761 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); | |
762 | ||
763 | /* We'll have to try again later */ | |
764 | tasklet_schedule(&card->tlet); | |
765 | } | |
766 | } | |
9c54004e DW |
767 | } |
768 | if (rx_done) | |
769 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
770 | ||
771 | return; | |
772 | } | |
773 | ||
774 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
775 | { | |
776 | struct hlist_head *head; | |
777 | struct atm_vcc *vcc = NULL; | |
778 | struct hlist_node *node; | |
779 | struct sock *s; | |
780 | ||
781 | read_lock(&vcc_sklist_lock); | |
782 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
783 | sk_for_each(s, node, head) { | |
784 | vcc = atm_sk(s); | |
785 | if (vcc->dev == dev && vcc->vci == vci && | |
1f6ea6e5 DW |
786 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE && |
787 | test_bit(ATM_VF_READY, &vcc->flags)) | |
9c54004e DW |
788 | goto out; |
789 | } | |
790 | vcc = NULL; | |
791 | out: | |
792 | read_unlock(&vcc_sklist_lock); | |
793 | return vcc; | |
794 | } | |
795 | ||
796 | static int list_vccs(int vci) | |
797 | { | |
798 | struct hlist_head *head; | |
799 | struct atm_vcc *vcc; | |
800 | struct hlist_node *node; | |
801 | struct sock *s; | |
802 | int num_found = 0; | |
803 | int i; | |
804 | ||
805 | read_lock(&vcc_sklist_lock); | |
806 | if (vci != 0){ | |
807 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
808 | sk_for_each(s, node, head) { | |
809 | num_found ++; | |
810 | vcc = atm_sk(s); | |
811 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
812 | vcc->dev->number, | |
813 | vcc->vpi, | |
814 | vcc->vci); | |
815 | } | |
816 | } else { | |
1e615df6 | 817 | for(i = 0; i < VCC_HTABLE_SIZE; i++){ |
9c54004e DW |
818 | head = &vcc_hash[i]; |
819 | sk_for_each(s, node, head) { | |
820 | num_found ++; | |
821 | vcc = atm_sk(s); | |
822 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
823 | vcc->dev->number, | |
824 | vcc->vpi, | |
825 | vcc->vci); | |
826 | } | |
827 | } | |
828 | } | |
829 | read_unlock(&vcc_sklist_lock); | |
830 | return num_found; | |
831 | } | |
832 | ||
1e615df6 DW |
833 | static void release_vccs(struct atm_dev *dev) |
834 | { | |
835 | int i; | |
836 | ||
837 | write_lock_irq(&vcc_sklist_lock); | |
838 | for (i = 0; i < VCC_HTABLE_SIZE; i++) { | |
839 | struct hlist_head *head = &vcc_hash[i]; | |
840 | struct hlist_node *node, *tmp; | |
841 | struct sock *s; | |
842 | struct atm_vcc *vcc; | |
843 | ||
844 | sk_for_each_safe(s, node, tmp, head) { | |
845 | vcc = atm_sk(s); | |
846 | if (vcc->dev == dev) { | |
847 | vcc_release_async(vcc, -EPIPE); | |
848 | sk_del_node_init(s); | |
849 | } | |
850 | } | |
851 | } | |
852 | write_unlock_irq(&vcc_sklist_lock); | |
853 | } | |
854 | ||
9c54004e DW |
855 | |
856 | static int popen(struct atm_vcc *vcc) | |
857 | { | |
858 | struct solos_card *card = vcc->dev->dev_data; | |
859 | struct sk_buff *skb; | |
860 | struct pkt_hdr *header; | |
861 | ||
b28a4b9a DW |
862 | if (vcc->qos.aal != ATM_AAL5) { |
863 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
864 | vcc->qos.aal); | |
865 | return -EINVAL; | |
866 | } | |
867 | ||
9c54004e DW |
868 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
869 | if (!skb && net_ratelimit()) { | |
870 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
871 | return -ENOMEM; | |
872 | } | |
873 | header = (void *)skb_put(skb, sizeof(*header)); | |
874 | ||
b76811af | 875 | header->size = cpu_to_le16(0); |
9c54004e DW |
876 | header->vpi = cpu_to_le16(vcc->vpi); |
877 | header->vci = cpu_to_le16(vcc->vci); | |
878 | header->type = cpu_to_le16(PKT_POPEN); | |
879 | ||
880 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
881 | ||
bdc54625 | 882 | set_bit(ATM_VF_ADDR, &vcc->flags); |
9c54004e DW |
883 | set_bit(ATM_VF_READY, &vcc->flags); |
884 | list_vccs(0); | |
885 | ||
9c54004e DW |
886 | |
887 | return 0; | |
888 | } | |
889 | ||
890 | static void pclose(struct atm_vcc *vcc) | |
891 | { | |
892 | struct solos_card *card = vcc->dev->dev_data; | |
893 | struct sk_buff *skb; | |
894 | struct pkt_hdr *header; | |
895 | ||
896 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
897 | if (!skb) { | |
898 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
899 | return; | |
900 | } | |
901 | header = (void *)skb_put(skb, sizeof(*header)); | |
902 | ||
b76811af | 903 | header->size = cpu_to_le16(0); |
9c54004e DW |
904 | header->vpi = cpu_to_le16(vcc->vpi); |
905 | header->vci = cpu_to_le16(vcc->vci); | |
906 | header->type = cpu_to_le16(PKT_PCLOSE); | |
907 | ||
908 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
909 | ||
9c54004e DW |
910 | clear_bit(ATM_VF_ADDR, &vcc->flags); |
911 | clear_bit(ATM_VF_READY, &vcc->flags); | |
912 | ||
1f6ea6e5 DW |
913 | /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the |
914 | tasklet has finished processing any incoming packets (and, more to | |
915 | the point, using the vcc pointer). */ | |
916 | tasklet_unlock_wait(&card->tlet); | |
9c54004e DW |
917 | return; |
918 | } | |
919 | ||
920 | static int print_buffer(struct sk_buff *buf) | |
921 | { | |
922 | int len,i; | |
923 | char msg[500]; | |
924 | char item[10]; | |
925 | ||
926 | len = buf->len; | |
927 | for (i = 0; i < len; i++){ | |
928 | if(i % 8 == 0) | |
929 | sprintf(msg, "%02X: ", i); | |
930 | ||
931 | sprintf(item,"%02X ",*(buf->data + i)); | |
932 | strcat(msg, item); | |
933 | if(i % 8 == 7) { | |
934 | sprintf(item, "\n"); | |
935 | strcat(msg, item); | |
936 | printk(KERN_DEBUG "%s", msg); | |
937 | } | |
938 | } | |
939 | if (i % 8 != 0) { | |
940 | sprintf(item, "\n"); | |
941 | strcat(msg, item); | |
942 | printk(KERN_DEBUG "%s", msg); | |
943 | } | |
944 | printk(KERN_DEBUG "\n"); | |
945 | ||
946 | return 0; | |
947 | } | |
948 | ||
949 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
950 | struct atm_vcc *vcc) | |
951 | { | |
952 | int old_len; | |
f69e4170 | 953 | unsigned long flags; |
9c54004e | 954 | |
90937231 | 955 | SKB_CB(skb)->vcc = vcc; |
9c54004e | 956 | |
f69e4170 | 957 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
9c54004e DW |
958 | old_len = skb_queue_len(&card->tx_queue[port]); |
959 | skb_queue_tail(&card->tx_queue[port], skb); | |
35c2221b | 960 | if (!old_len) |
f69e4170 | 961 | card->tx_mask |= (1 << port); |
f69e4170 | 962 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); |
9c54004e | 963 | |
f69e4170 DW |
964 | /* Theoretically we could just schedule the tasklet here, but |
965 | that introduces latency we don't want -- it's noticeable */ | |
9c54004e DW |
966 | if (!old_len) |
967 | fpga_tx(card); | |
968 | } | |
969 | ||
35c2221b | 970 | static uint32_t fpga_tx(struct solos_card *card) |
9c54004e | 971 | { |
35c2221b | 972 | uint32_t tx_pending, card_flags; |
9c54004e DW |
973 | uint32_t tx_started = 0; |
974 | struct sk_buff *skb; | |
975 | struct atm_vcc *vcc; | |
976 | unsigned char port; | |
977 | unsigned long flags; | |
978 | ||
979 | spin_lock_irqsave(&card->tx_lock, flags); | |
35c2221b DW |
980 | |
981 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
982 | /* | |
983 | * The queue lock is required for _writing_ to tx_mask, but we're | |
984 | * OK to read it here without locking. The only potential update | |
985 | * that we could race with is in fpga_queue() where it sets a bit | |
986 | * for a new port... but it's going to call this function again if | |
987 | * it's doing that, anyway. | |
988 | */ | |
989 | tx_pending = card->tx_mask & ~card_flags; | |
990 | ||
991 | for (port = 0; tx_pending; tx_pending >>= 1, port++) { | |
992 | if (tx_pending & 1) { | |
eaf83e39 | 993 | struct sk_buff *oldskb = card->tx_skb[port]; |
eaf83e39 DW |
994 | if (oldskb) |
995 | pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, | |
996 | oldskb->len, PCI_DMA_TODEVICE); | |
9c54004e DW |
997 | |
998 | spin_lock(&card->tx_queue_lock); | |
999 | skb = skb_dequeue(&card->tx_queue[port]); | |
f69e4170 DW |
1000 | if (!skb) |
1001 | card->tx_mask &= ~(1 << port); | |
9c54004e DW |
1002 | spin_unlock(&card->tx_queue_lock); |
1003 | ||
eaf83e39 DW |
1004 | if (skb && !card->using_dma) { |
1005 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
bdc54625 | 1006 | tx_started |= 1 << port; |
eaf83e39 DW |
1007 | oldskb = skb; /* We're done with this skb already */ |
1008 | } else if (skb && card->using_dma) { | |
1009 | SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data, | |
1010 | skb->len, PCI_DMA_TODEVICE); | |
1011 | iowrite32(SKB_CB(skb)->dma_addr, | |
1012 | card->config_regs + TX_DMA_ADDR(port)); | |
1013 | } | |
1014 | ||
1015 | if (!oldskb) | |
9c54004e DW |
1016 | continue; |
1017 | ||
eaf83e39 | 1018 | /* Clean up and free oldskb now it's gone */ |
9c54004e DW |
1019 | if (atmdebug) { |
1020 | dev_info(&card->dev->dev, "Transmitted: port %d\n", | |
1021 | port); | |
eaf83e39 | 1022 | print_buffer(oldskb); |
9c54004e | 1023 | } |
9c54004e | 1024 | |
eaf83e39 | 1025 | vcc = SKB_CB(oldskb)->vcc; |
9c54004e DW |
1026 | |
1027 | if (vcc) { | |
1028 | atomic_inc(&vcc->stats->tx); | |
eaf83e39 | 1029 | solos_pop(vcc, oldskb); |
9c54004e | 1030 | } else |
eaf83e39 | 1031 | dev_kfree_skb_irq(oldskb); |
9c54004e | 1032 | |
9c54004e DW |
1033 | } |
1034 | } | |
bdc54625 | 1035 | /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ |
9c54004e DW |
1036 | if (tx_started) |
1037 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
1038 | ||
1039 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
35c2221b | 1040 | return card_flags; |
9c54004e DW |
1041 | } |
1042 | ||
1043 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
1044 | { | |
1045 | struct solos_card *card = vcc->dev->dev_data; | |
9c54004e | 1046 | struct pkt_hdr *header; |
b76811af | 1047 | int pktlen; |
9c54004e | 1048 | |
b76811af DW |
1049 | pktlen = skb->len; |
1050 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
1051 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
1052 | solos_pop(vcc, skb); | |
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
1057 | int expand_by = 0; | |
1058 | int ret; | |
1059 | ||
1060 | if (skb_headroom(skb) < sizeof(*header)) | |
1061 | expand_by = sizeof(*header) - skb_headroom(skb); | |
1062 | ||
1063 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
1064 | if (ret) { | |
4306cad6 | 1065 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
1066 | solos_pop(vcc, skb); |
1067 | return ret; | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | header = (void *)skb_push(skb, sizeof(*header)); | |
1072 | ||
b76811af DW |
1073 | /* This does _not_ include the size of the header */ |
1074 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1075 | header->vpi = cpu_to_le16(vcc->vpi); |
1076 | header->vci = cpu_to_le16(vcc->vci); | |
1077 | header->type = cpu_to_le16(PKT_DATA); | |
1078 | ||
1079 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1080 | ||
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | static struct atmdev_ops fpga_ops = { | |
1085 | .open = popen, | |
1086 | .close = pclose, | |
1087 | .ioctl = NULL, | |
1088 | .getsockopt = NULL, | |
1089 | .setsockopt = NULL, | |
1090 | .send = psend, | |
1091 | .send_oam = NULL, | |
1092 | .phy_put = NULL, | |
1093 | .phy_get = NULL, | |
1094 | .change_qos = NULL, | |
1095 | .proc_read = NULL, | |
1096 | .owner = THIS_MODULE | |
1097 | }; | |
1098 | ||
1099 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1100 | { | |
cd5549e0 | 1101 | int err; |
9c54004e DW |
1102 | uint16_t fpga_ver; |
1103 | uint8_t major_ver, minor_ver; | |
1104 | uint32_t data32; | |
1105 | struct solos_card *card; | |
1106 | ||
9c54004e DW |
1107 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1108 | if (!card) | |
1109 | return -ENOMEM; | |
1110 | ||
1111 | card->dev = dev; | |
fa755b9f | 1112 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1113 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1114 | |
1115 | err = pci_enable_device(dev); | |
1116 | if (err) { | |
1117 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1118 | goto out; | |
1119 | } | |
1120 | ||
e930438c | 1121 | err = pci_set_dma_mask(dev, DMA_BIT_MASK(32)); |
90937231 DW |
1122 | if (err) { |
1123 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1124 | goto out; | |
1125 | } | |
1126 | ||
9c54004e DW |
1127 | err = pci_request_regions(dev, "solos"); |
1128 | if (err) { | |
1129 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1130 | goto out; | |
1131 | } | |
1132 | ||
1133 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1134 | if (!card->config_regs) { | |
1135 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
1136 | goto out_release_regions; | |
1137 | } | |
1138 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1139 | if (!card->buffers) { | |
1140 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
1141 | goto out_unmap_config; | |
1142 | } | |
1143 | ||
cc3657e1 DW |
1144 | if (reset) { |
1145 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1146 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
9c54004e | 1147 | |
cc3657e1 DW |
1148 | iowrite32(0, card->config_regs + FPGA_MODE); |
1149 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
1150 | } | |
9c54004e DW |
1151 | |
1152 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1153 | fpga_ver = (data32 & 0x0000FFFF); | |
1154 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1155 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
4dbedf43 NW |
1156 | card->fpga_version = FPGA_VERSION(major_ver,minor_ver); |
1157 | if (card->fpga_version > LEGACY_BUFFERS) | |
1158 | card->buffer_size = BUF_SIZE; | |
1159 | else | |
1160 | card->buffer_size = OLD_BUF_SIZE; | |
9c54004e DW |
1161 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", |
1162 | major_ver, minor_ver, fpga_ver); | |
1163 | ||
4dbedf43 | 1164 | if (card->fpga_version >= DMA_SUPPORTED){ |
90937231 | 1165 | card->using_dma = 1; |
4dbedf43 NW |
1166 | } else { |
1167 | card->using_dma = 0; | |
eab50f73 DW |
1168 | /* Set RX empty flag for all ports */ |
1169 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1170 | } | |
9c54004e | 1171 | |
0fc36aa5 NW |
1172 | data32 = ioread32(card->config_regs + PORTS); |
1173 | card->nr_ports = (data32 & 0x000000FF); | |
9c54004e DW |
1174 | |
1175 | pci_set_drvdata(dev, card); | |
fa755b9f | 1176 | |
9c54004e DW |
1177 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1178 | spin_lock_init(&card->tx_lock); | |
1179 | spin_lock_init(&card->tx_queue_lock); | |
1180 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1181 | spin_lock_init(&card->param_queue_lock); |
1182 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1183 | |
fcd82664 | 1184 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
9c54004e | 1185 | "solos-pci", card); |
fa755b9f | 1186 | if (err) { |
9c54004e | 1187 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1188 | goto out_unmap_both; |
1189 | } | |
9c54004e | 1190 | |
9c54004e DW |
1191 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); |
1192 | ||
fa755b9f DW |
1193 | if (fpga_upgrade) |
1194 | flash_upgrade(card, 0); | |
1195 | ||
1196 | if (firmware_upgrade) | |
1197 | flash_upgrade(card, 1); | |
1198 | ||
4dbedf43 NW |
1199 | if (db_fpga_upgrade) |
1200 | flash_upgrade(card, 2); | |
1201 | ||
1202 | if (db_firmware_upgrade) | |
1203 | flash_upgrade(card, 3); | |
1204 | ||
fa755b9f DW |
1205 | err = atm_init(card); |
1206 | if (err) | |
1207 | goto out_free_irq; | |
1208 | ||
9c54004e DW |
1209 | return 0; |
1210 | ||
fa755b9f DW |
1211 | out_free_irq: |
1212 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1213 | free_irq(dev->irq, card); | |
1214 | tasklet_kill(&card->tlet); | |
1215 | ||
9c54004e | 1216 | out_unmap_both: |
fa755b9f | 1217 | pci_set_drvdata(dev, NULL); |
9c54004e DW |
1218 | pci_iounmap(dev, card->config_regs); |
1219 | out_unmap_config: | |
1220 | pci_iounmap(dev, card->buffers); | |
1221 | out_release_regions: | |
1222 | pci_release_regions(dev); | |
1223 | out: | |
bc111d57 | 1224 | kfree(card); |
9c54004e DW |
1225 | return err; |
1226 | } | |
1227 | ||
1228 | static int atm_init(struct solos_card *card) | |
1229 | { | |
1230 | int i; | |
1231 | ||
9c54004e | 1232 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1233 | struct sk_buff *skb; |
1234 | struct pkt_hdr *header; | |
1235 | ||
9c54004e DW |
1236 | skb_queue_head_init(&card->tx_queue[i]); |
1237 | skb_queue_head_init(&card->cli_queue[i]); | |
1238 | ||
1239 | card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); | |
1240 | if (!card->atmdev[i]) { | |
1241 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1242 | atm_remove(card); | |
1243 | return -ENODEV; | |
1244 | } | |
1245 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1246 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1247 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1248 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1249 | |
1250 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1251 | ||
1252 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1253 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1254 | card->atmdev[i]->dev_data = card; | |
1255 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
49d49106 | 1256 | atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_UNKNOWN); |
87ebb186 DW |
1257 | |
1258 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
1259 | if (!skb) { | |
1260 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1261 | continue; | |
1262 | } | |
1263 | ||
1264 | header = (void *)skb_put(skb, sizeof(*header)); | |
1265 | ||
1266 | header->size = cpu_to_le16(0); | |
1267 | header->vpi = cpu_to_le16(0); | |
1268 | header->vci = cpu_to_le16(0); | |
1269 | header->type = cpu_to_le16(PKT_STATUS); | |
1270 | ||
1271 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1272 | } |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static void atm_remove(struct solos_card *card) | |
1277 | { | |
1278 | int i; | |
1279 | ||
1280 | for (i = 0; i < card->nr_ports; i++) { | |
1281 | if (card->atmdev[i]) { | |
97d759d3 DW |
1282 | struct sk_buff *skb; |
1283 | ||
9c54004e | 1284 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); |
c0fe3026 DW |
1285 | |
1286 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e | 1287 | atm_dev_deregister(card->atmdev[i]); |
97d759d3 DW |
1288 | |
1289 | skb = card->rx_skb[i]; | |
1290 | if (skb) { | |
1291 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, | |
1292 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
1293 | dev_kfree_skb(skb); | |
1294 | } | |
1295 | skb = card->tx_skb[i]; | |
1296 | if (skb) { | |
1297 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, | |
1298 | skb->len, PCI_DMA_TODEVICE); | |
1299 | dev_kfree_skb(skb); | |
1300 | } | |
1301 | while ((skb = skb_dequeue(&card->tx_queue[i]))) | |
1302 | dev_kfree_skb(skb); | |
1303 | ||
9c54004e DW |
1304 | } |
1305 | } | |
1306 | } | |
1307 | ||
1308 | static void fpga_remove(struct pci_dev *dev) | |
1309 | { | |
1310 | struct solos_card *card = pci_get_drvdata(dev); | |
97d759d3 DW |
1311 | |
1312 | /* Disable IRQs */ | |
1313 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
9c54004e | 1314 | |
97d759d3 DW |
1315 | /* Reset FPGA */ |
1316 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1317 | (void)ioread32(card->config_regs + FPGA_MODE); | |
9c54004e DW |
1318 | |
1319 | atm_remove(card); | |
1320 | ||
9c54004e DW |
1321 | free_irq(dev->irq, card); |
1322 | tasklet_kill(&card->tlet); | |
1323 | ||
97d759d3 DW |
1324 | /* Release device from reset */ |
1325 | iowrite32(0, card->config_regs + FPGA_MODE); | |
1326 | (void)ioread32(card->config_regs + FPGA_MODE); | |
1327 | ||
9c54004e DW |
1328 | pci_iounmap(dev, card->buffers); |
1329 | pci_iounmap(dev, card->config_regs); | |
1330 | ||
9c54004e DW |
1331 | pci_release_regions(dev); |
1332 | pci_disable_device(dev); | |
1333 | ||
1334 | pci_set_drvdata(dev, NULL); | |
1335 | kfree(card); | |
9c54004e DW |
1336 | } |
1337 | ||
1338 | static struct pci_device_id fpga_pci_tbl[] __devinitdata = { | |
1339 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
1340 | { 0, } | |
1341 | }; | |
1342 | ||
1343 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1344 | ||
1345 | static struct pci_driver fpga_driver = { | |
1346 | .name = "solos", | |
1347 | .id_table = fpga_pci_tbl, | |
1348 | .probe = fpga_probe, | |
1349 | .remove = fpga_remove, | |
1350 | }; | |
1351 | ||
1352 | ||
1353 | static int __init solos_pci_init(void) | |
1354 | { | |
1355 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); | |
1356 | return pci_register_driver(&fpga_driver); | |
1357 | } | |
1358 | ||
1359 | static void __exit solos_pci_exit(void) | |
1360 | { | |
1361 | pci_unregister_driver(&fpga_driver); | |
1362 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1363 | } | |
1364 | ||
1365 | module_init(solos_pci_init); | |
1366 | module_exit(solos_pci_exit); |