]>
Commit | Line | Data |
---|---|---|
658d439b TI |
1 | /* |
2 | * FUJITSU Extended Socket Network Device driver | |
3 | * Copyright (c) 2015 FUJITSU LIMITED | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | * | |
17 | * The full GNU General Public License is included in this distribution in | |
18 | * the file called "COPYING". | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/types.h> | |
24 | #include <linux/nls.h> | |
25 | #include <linux/platform_device.h> | |
2fcbca68 | 26 | #include <linux/netdevice.h> |
e5d486dc | 27 | #include <linux/interrupt.h> |
658d439b TI |
28 | |
29 | #include "fjes.h" | |
82f6aea8 | 30 | #include "fjes_trace.h" |
658d439b TI |
31 | |
32 | #define MAJ 1 | |
8f87d775 | 33 | #define MIN 2 |
658d439b TI |
34 | #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) |
35 | #define DRV_NAME "fjes" | |
36 | char fjes_driver_name[] = DRV_NAME; | |
37 | char fjes_driver_version[] = DRV_VERSION; | |
38 | static const char fjes_driver_string[] = | |
39 | "FUJITSU Extended Socket Network Device Driver"; | |
40 | static const char fjes_copyright[] = | |
41 | "Copyright (c) 2015 FUJITSU LIMITED"; | |
42 | ||
43 | MODULE_AUTHOR("Taku Izumi <izumi.taku@jp.fujitsu.com>"); | |
44 | MODULE_DESCRIPTION("FUJITSU Extended Socket Network Device Driver"); | |
45 | MODULE_LICENSE("GPL"); | |
46 | MODULE_VERSION(DRV_VERSION); | |
47 | ||
ac23d3ca YI |
48 | #define ACPI_MOTHERBOARD_RESOURCE_HID "PNP0C02" |
49 | ||
e5d486dc TI |
50 | static int fjes_request_irq(struct fjes_adapter *); |
51 | static void fjes_free_irq(struct fjes_adapter *); | |
52 | ||
53 | static int fjes_open(struct net_device *); | |
54 | static int fjes_close(struct net_device *); | |
55 | static int fjes_setup_resources(struct fjes_adapter *); | |
56 | static void fjes_free_resources(struct fjes_adapter *); | |
9acf51cb | 57 | static netdev_tx_t fjes_xmit_frame(struct sk_buff *, struct net_device *); |
b772b9dc | 58 | static void fjes_raise_intr_rxdata_task(struct work_struct *); |
ac63b947 | 59 | static void fjes_tx_stall_task(struct work_struct *); |
ff5b4210 | 60 | static void fjes_force_close_task(struct work_struct *); |
e5d486dc | 61 | static irqreturn_t fjes_intr(int, void*); |
bc1f4470 | 62 | static void fjes_get_stats64(struct net_device *, struct rtnl_link_stats64 *); |
b9e23a67 | 63 | static int fjes_change_mtu(struct net_device *, int); |
3e3fedda TI |
64 | static int fjes_vlan_rx_add_vid(struct net_device *, __be16 proto, u16); |
65 | static int fjes_vlan_rx_kill_vid(struct net_device *, __be16 proto, u16); | |
4393e767 | 66 | static void fjes_tx_retry(struct net_device *); |
e5d486dc | 67 | |
658d439b TI |
68 | static int fjes_acpi_add(struct acpi_device *); |
69 | static int fjes_acpi_remove(struct acpi_device *); | |
70 | static acpi_status fjes_get_acpi_resource(struct acpi_resource *, void*); | |
71 | ||
72 | static int fjes_probe(struct platform_device *); | |
73 | static int fjes_remove(struct platform_device *); | |
74 | ||
2fcbca68 TI |
75 | static int fjes_sw_init(struct fjes_adapter *); |
76 | static void fjes_netdev_setup(struct net_device *); | |
8edb62a8 | 77 | static void fjes_irq_watch_task(struct work_struct *); |
8fc4cadb | 78 | static void fjes_watch_unshare_task(struct work_struct *); |
26585930 TI |
79 | static void fjes_rx_irq(struct fjes_adapter *, int); |
80 | static int fjes_poll(struct napi_struct *, int); | |
81 | ||
658d439b | 82 | static const struct acpi_device_id fjes_acpi_ids[] = { |
ac23d3ca | 83 | {ACPI_MOTHERBOARD_RESOURCE_HID, 0}, |
658d439b TI |
84 | {"", 0}, |
85 | }; | |
86 | MODULE_DEVICE_TABLE(acpi, fjes_acpi_ids); | |
87 | ||
88 | static struct acpi_driver fjes_acpi_driver = { | |
89 | .name = DRV_NAME, | |
90 | .class = DRV_NAME, | |
91 | .owner = THIS_MODULE, | |
92 | .ids = fjes_acpi_ids, | |
93 | .ops = { | |
94 | .add = fjes_acpi_add, | |
95 | .remove = fjes_acpi_remove, | |
96 | }, | |
97 | }; | |
98 | ||
99 | static struct platform_driver fjes_driver = { | |
100 | .driver = { | |
101 | .name = DRV_NAME, | |
658d439b TI |
102 | }, |
103 | .probe = fjes_probe, | |
104 | .remove = fjes_remove, | |
105 | }; | |
106 | ||
107 | static struct resource fjes_resource[] = { | |
108 | { | |
109 | .flags = IORESOURCE_MEM, | |
110 | .start = 0, | |
111 | .end = 0, | |
112 | }, | |
113 | { | |
114 | .flags = IORESOURCE_IRQ, | |
115 | .start = 0, | |
116 | .end = 0, | |
117 | }, | |
118 | }; | |
119 | ||
ac23d3ca | 120 | static bool is_extended_socket_device(struct acpi_device *device) |
658d439b TI |
121 | { |
122 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL}; | |
123 | char str_buf[sizeof(FJES_ACPI_SYMBOL) + 1]; | |
658d439b TI |
124 | union acpi_object *str; |
125 | acpi_status status; | |
126 | int result; | |
127 | ||
128 | status = acpi_evaluate_object(device->handle, "_STR", NULL, &buffer); | |
129 | if (ACPI_FAILURE(status)) | |
ac23d3ca | 130 | return false; |
658d439b TI |
131 | |
132 | str = buffer.pointer; | |
133 | result = utf16s_to_utf8s((wchar_t *)str->string.pointer, | |
134 | str->string.length, UTF16_LITTLE_ENDIAN, | |
135 | str_buf, sizeof(str_buf) - 1); | |
136 | str_buf[result] = 0; | |
137 | ||
138 | if (strncmp(FJES_ACPI_SYMBOL, str_buf, strlen(FJES_ACPI_SYMBOL)) != 0) { | |
139 | kfree(buffer.pointer); | |
ac23d3ca | 140 | return false; |
658d439b TI |
141 | } |
142 | kfree(buffer.pointer); | |
143 | ||
ac23d3ca YI |
144 | return true; |
145 | } | |
146 | ||
2b396d30 YI |
147 | static int acpi_check_extended_socket_status(struct acpi_device *device) |
148 | { | |
149 | unsigned long long sta; | |
150 | acpi_status status; | |
151 | ||
152 | status = acpi_evaluate_integer(device->handle, "_STA", NULL, &sta); | |
153 | if (ACPI_FAILURE(status)) | |
154 | return -ENODEV; | |
155 | ||
156 | if (!((sta & ACPI_STA_DEVICE_PRESENT) && | |
157 | (sta & ACPI_STA_DEVICE_ENABLED) && | |
158 | (sta & ACPI_STA_DEVICE_UI) && | |
159 | (sta & ACPI_STA_DEVICE_FUNCTIONING))) | |
160 | return -ENODEV; | |
161 | ||
162 | return 0; | |
163 | } | |
164 | ||
ac23d3ca YI |
165 | static int fjes_acpi_add(struct acpi_device *device) |
166 | { | |
167 | struct platform_device *plat_dev; | |
168 | acpi_status status; | |
169 | ||
170 | if (!is_extended_socket_device(device)) | |
171 | return -ENODEV; | |
172 | ||
2b396d30 YI |
173 | if (acpi_check_extended_socket_status(device)) |
174 | return -ENODEV; | |
175 | ||
658d439b TI |
176 | status = acpi_walk_resources(device->handle, METHOD_NAME__CRS, |
177 | fjes_get_acpi_resource, fjes_resource); | |
178 | if (ACPI_FAILURE(status)) | |
179 | return -ENODEV; | |
180 | ||
181 | /* create platform_device */ | |
182 | plat_dev = platform_device_register_simple(DRV_NAME, 0, fjes_resource, | |
183 | ARRAY_SIZE(fjes_resource)); | |
184 | device->driver_data = plat_dev; | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | static int fjes_acpi_remove(struct acpi_device *device) | |
190 | { | |
191 | struct platform_device *plat_dev; | |
192 | ||
193 | plat_dev = (struct platform_device *)acpi_driver_data(device); | |
194 | platform_device_unregister(plat_dev); | |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
199 | static acpi_status | |
200 | fjes_get_acpi_resource(struct acpi_resource *acpi_res, void *data) | |
201 | { | |
202 | struct acpi_resource_address32 *addr; | |
203 | struct acpi_resource_irq *irq; | |
204 | struct resource *res = data; | |
205 | ||
206 | switch (acpi_res->type) { | |
207 | case ACPI_RESOURCE_TYPE_ADDRESS32: | |
208 | addr = &acpi_res->data.address32; | |
209 | res[0].start = addr->address.minimum; | |
210 | res[0].end = addr->address.minimum + | |
211 | addr->address.address_length - 1; | |
212 | break; | |
213 | ||
214 | case ACPI_RESOURCE_TYPE_IRQ: | |
215 | irq = &acpi_res->data.irq; | |
216 | if (irq->interrupt_count != 1) | |
217 | return AE_ERROR; | |
218 | res[1].start = irq->interrupts[0]; | |
219 | res[1].end = irq->interrupts[0]; | |
220 | break; | |
221 | ||
222 | default: | |
223 | break; | |
224 | } | |
225 | ||
226 | return AE_OK; | |
227 | } | |
228 | ||
e5d486dc TI |
229 | static int fjes_request_irq(struct fjes_adapter *adapter) |
230 | { | |
231 | struct net_device *netdev = adapter->netdev; | |
232 | int result = -1; | |
233 | ||
8edb62a8 TI |
234 | adapter->interrupt_watch_enable = true; |
235 | if (!delayed_work_pending(&adapter->interrupt_watch_task)) { | |
236 | queue_delayed_work(adapter->control_wq, | |
237 | &adapter->interrupt_watch_task, | |
238 | FJES_IRQ_WATCH_DELAY); | |
239 | } | |
240 | ||
e5d486dc TI |
241 | if (!adapter->irq_registered) { |
242 | result = request_irq(adapter->hw.hw_res.irq, fjes_intr, | |
243 | IRQF_SHARED, netdev->name, adapter); | |
244 | if (result) | |
245 | adapter->irq_registered = false; | |
246 | else | |
247 | adapter->irq_registered = true; | |
248 | } | |
249 | ||
250 | return result; | |
251 | } | |
252 | ||
253 | static void fjes_free_irq(struct fjes_adapter *adapter) | |
254 | { | |
255 | struct fjes_hw *hw = &adapter->hw; | |
256 | ||
8edb62a8 TI |
257 | adapter->interrupt_watch_enable = false; |
258 | cancel_delayed_work_sync(&adapter->interrupt_watch_task); | |
259 | ||
e5d486dc TI |
260 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_ALL, true); |
261 | ||
262 | if (adapter->irq_registered) { | |
263 | free_irq(adapter->hw.hw_res.irq, adapter); | |
264 | adapter->irq_registered = false; | |
265 | } | |
266 | } | |
267 | ||
2fcbca68 | 268 | static const struct net_device_ops fjes_netdev_ops = { |
e5d486dc TI |
269 | .ndo_open = fjes_open, |
270 | .ndo_stop = fjes_close, | |
9acf51cb | 271 | .ndo_start_xmit = fjes_xmit_frame, |
879bc9a3 | 272 | .ndo_get_stats64 = fjes_get_stats64, |
b9e23a67 | 273 | .ndo_change_mtu = fjes_change_mtu, |
4393e767 | 274 | .ndo_tx_timeout = fjes_tx_retry, |
3e3fedda TI |
275 | .ndo_vlan_rx_add_vid = fjes_vlan_rx_add_vid, |
276 | .ndo_vlan_rx_kill_vid = fjes_vlan_rx_kill_vid, | |
2fcbca68 TI |
277 | }; |
278 | ||
e5d486dc TI |
279 | /* fjes_open - Called when a network interface is made active */ |
280 | static int fjes_open(struct net_device *netdev) | |
281 | { | |
282 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
283 | struct fjes_hw *hw = &adapter->hw; | |
284 | int result; | |
285 | ||
286 | if (adapter->open_guard) | |
287 | return -ENXIO; | |
288 | ||
289 | result = fjes_setup_resources(adapter); | |
290 | if (result) | |
291 | goto err_setup_res; | |
292 | ||
293 | hw->txrx_stop_req_bit = 0; | |
294 | hw->epstop_req_bit = 0; | |
295 | ||
26585930 TI |
296 | napi_enable(&adapter->napi); |
297 | ||
e5d486dc TI |
298 | fjes_hw_capture_interrupt_status(hw); |
299 | ||
300 | result = fjes_request_irq(adapter); | |
301 | if (result) | |
302 | goto err_req_irq; | |
303 | ||
304 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_ALL, false); | |
305 | ||
306 | netif_tx_start_all_queues(netdev); | |
307 | netif_carrier_on(netdev); | |
308 | ||
309 | return 0; | |
310 | ||
311 | err_req_irq: | |
312 | fjes_free_irq(adapter); | |
26585930 | 313 | napi_disable(&adapter->napi); |
e5d486dc TI |
314 | |
315 | err_setup_res: | |
316 | fjes_free_resources(adapter); | |
317 | return result; | |
318 | } | |
319 | ||
320 | /* fjes_close - Disables a network interface */ | |
321 | static int fjes_close(struct net_device *netdev) | |
322 | { | |
323 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
324 | struct fjes_hw *hw = &adapter->hw; | |
bd5a2569 | 325 | unsigned long flags; |
e5d486dc TI |
326 | int epidx; |
327 | ||
328 | netif_tx_stop_all_queues(netdev); | |
329 | netif_carrier_off(netdev); | |
330 | ||
331 | fjes_hw_raise_epstop(hw); | |
332 | ||
26585930 TI |
333 | napi_disable(&adapter->napi); |
334 | ||
bd5a2569 | 335 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
e5d486dc TI |
336 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
337 | if (epidx == hw->my_epid) | |
338 | continue; | |
339 | ||
bd5a2569 TI |
340 | if (fjes_hw_get_partner_ep_status(hw, epidx) == |
341 | EP_PARTNER_SHARED) | |
342 | adapter->hw.ep_shm_info[epidx] | |
343 | .tx.info->v1i.rx_status &= | |
344 | ~FJES_RX_POLL_WORK; | |
e5d486dc | 345 | } |
bd5a2569 | 346 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
e5d486dc TI |
347 | |
348 | fjes_free_irq(adapter); | |
349 | ||
8edb62a8 | 350 | cancel_delayed_work_sync(&adapter->interrupt_watch_task); |
8fc4cadb TI |
351 | cancel_work_sync(&adapter->unshare_watch_task); |
352 | adapter->unshare_watch_bitmask = 0; | |
b772b9dc | 353 | cancel_work_sync(&adapter->raise_intr_rxdata_task); |
ac63b947 | 354 | cancel_work_sync(&adapter->tx_stall_task); |
b772b9dc | 355 | |
785f28e0 | 356 | cancel_work_sync(&hw->update_zone_task); |
b5a9152d | 357 | cancel_work_sync(&hw->epstop_task); |
785f28e0 | 358 | |
e5d486dc TI |
359 | fjes_hw_wait_epstop(hw); |
360 | ||
361 | fjes_free_resources(adapter); | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
366 | static int fjes_setup_resources(struct fjes_adapter *adapter) | |
367 | { | |
368 | struct net_device *netdev = adapter->netdev; | |
369 | struct ep_share_mem_info *buf_pair; | |
370 | struct fjes_hw *hw = &adapter->hw; | |
bd5a2569 | 371 | unsigned long flags; |
e5d486dc TI |
372 | int result; |
373 | int epidx; | |
374 | ||
375 | mutex_lock(&hw->hw_info.lock); | |
376 | result = fjes_hw_request_info(hw); | |
377 | switch (result) { | |
378 | case 0: | |
379 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
380 | hw->ep_shm_info[epidx].es_status = | |
381 | hw->hw_info.res_buf->info.info[epidx].es_status; | |
382 | hw->ep_shm_info[epidx].zone = | |
383 | hw->hw_info.res_buf->info.info[epidx].zone; | |
384 | } | |
385 | break; | |
386 | default: | |
387 | case -ENOMSG: | |
388 | case -EBUSY: | |
389 | adapter->force_reset = true; | |
390 | ||
391 | mutex_unlock(&hw->hw_info.lock); | |
392 | return result; | |
393 | } | |
394 | mutex_unlock(&hw->hw_info.lock); | |
395 | ||
396 | for (epidx = 0; epidx < (hw->max_epid); epidx++) { | |
397 | if ((epidx != hw->my_epid) && | |
398 | (hw->ep_shm_info[epidx].es_status == | |
399 | FJES_ZONING_STATUS_ENABLE)) { | |
400 | fjes_hw_raise_interrupt(hw, epidx, | |
401 | REG_ICTL_MASK_INFO_UPDATE); | |
21b7efbc TI |
402 | hw->ep_shm_info[epidx].ep_stats |
403 | .send_intr_zoneupdate += 1; | |
e5d486dc TI |
404 | } |
405 | } | |
406 | ||
407 | msleep(FJES_OPEN_ZONE_UPDATE_WAIT * hw->max_epid); | |
408 | ||
409 | for (epidx = 0; epidx < (hw->max_epid); epidx++) { | |
410 | if (epidx == hw->my_epid) | |
411 | continue; | |
412 | ||
413 | buf_pair = &hw->ep_shm_info[epidx]; | |
414 | ||
bd5a2569 | 415 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
e5d486dc TI |
416 | fjes_hw_setup_epbuf(&buf_pair->tx, netdev->dev_addr, |
417 | netdev->mtu); | |
bd5a2569 | 418 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
e5d486dc TI |
419 | |
420 | if (fjes_hw_epid_is_same_zone(hw, epidx)) { | |
421 | mutex_lock(&hw->hw_info.lock); | |
422 | result = | |
423 | fjes_hw_register_buff_addr(hw, epidx, buf_pair); | |
424 | mutex_unlock(&hw->hw_info.lock); | |
425 | ||
426 | switch (result) { | |
427 | case 0: | |
428 | break; | |
429 | case -ENOMSG: | |
430 | case -EBUSY: | |
431 | default: | |
432 | adapter->force_reset = true; | |
433 | return result; | |
434 | } | |
21b7efbc TI |
435 | |
436 | hw->ep_shm_info[epidx].ep_stats | |
437 | .com_regist_buf_exec += 1; | |
e5d486dc TI |
438 | } |
439 | } | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
444 | static void fjes_free_resources(struct fjes_adapter *adapter) | |
445 | { | |
446 | struct net_device *netdev = adapter->netdev; | |
447 | struct fjes_device_command_param param; | |
448 | struct ep_share_mem_info *buf_pair; | |
449 | struct fjes_hw *hw = &adapter->hw; | |
450 | bool reset_flag = false; | |
bd5a2569 | 451 | unsigned long flags; |
e5d486dc TI |
452 | int result; |
453 | int epidx; | |
454 | ||
455 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
456 | if (epidx == hw->my_epid) | |
457 | continue; | |
458 | ||
459 | mutex_lock(&hw->hw_info.lock); | |
460 | result = fjes_hw_unregister_buff_addr(hw, epidx); | |
461 | mutex_unlock(&hw->hw_info.lock); | |
462 | ||
21b7efbc TI |
463 | hw->ep_shm_info[epidx].ep_stats.com_unregist_buf_exec += 1; |
464 | ||
e5d486dc TI |
465 | if (result) |
466 | reset_flag = true; | |
467 | ||
468 | buf_pair = &hw->ep_shm_info[epidx]; | |
469 | ||
bd5a2569 | 470 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
e5d486dc TI |
471 | fjes_hw_setup_epbuf(&buf_pair->tx, |
472 | netdev->dev_addr, netdev->mtu); | |
bd5a2569 | 473 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
e5d486dc TI |
474 | |
475 | clear_bit(epidx, &hw->txrx_stop_req_bit); | |
476 | } | |
477 | ||
478 | if (reset_flag || adapter->force_reset) { | |
479 | result = fjes_hw_reset(hw); | |
480 | ||
481 | adapter->force_reset = false; | |
482 | ||
483 | if (result) | |
484 | adapter->open_guard = true; | |
485 | ||
486 | hw->hw_info.buffer_share_bit = 0; | |
487 | ||
488 | memset((void *)¶m, 0, sizeof(param)); | |
489 | ||
490 | param.req_len = hw->hw_info.req_buf_size; | |
491 | param.req_start = __pa(hw->hw_info.req_buf); | |
492 | param.res_len = hw->hw_info.res_buf_size; | |
493 | param.res_start = __pa(hw->hw_info.res_buf); | |
494 | param.share_start = __pa(hw->hw_info.share->ep_status); | |
495 | ||
496 | fjes_hw_init_command_registers(hw, ¶m); | |
497 | } | |
498 | } | |
499 | ||
ac63b947 TI |
500 | static void fjes_tx_stall_task(struct work_struct *work) |
501 | { | |
502 | struct fjes_adapter *adapter = container_of(work, | |
503 | struct fjes_adapter, tx_stall_task); | |
504 | struct net_device *netdev = adapter->netdev; | |
505 | struct fjes_hw *hw = &adapter->hw; | |
506 | int all_queue_available, sendable; | |
507 | enum ep_partner_status pstatus; | |
508 | int max_epid, my_epid, epid; | |
509 | union ep_buffer_info *info; | |
510 | int i; | |
511 | ||
512 | if (((long)jiffies - | |
4d0e9657 | 513 | dev_trans_start(netdev)) > FJES_TX_TX_STALL_TIMEOUT) { |
ac63b947 TI |
514 | netif_wake_queue(netdev); |
515 | return; | |
516 | } | |
517 | ||
518 | my_epid = hw->my_epid; | |
519 | max_epid = hw->max_epid; | |
520 | ||
521 | for (i = 0; i < 5; i++) { | |
522 | all_queue_available = 1; | |
523 | ||
524 | for (epid = 0; epid < max_epid; epid++) { | |
525 | if (my_epid == epid) | |
526 | continue; | |
527 | ||
528 | pstatus = fjes_hw_get_partner_ep_status(hw, epid); | |
529 | sendable = (pstatus == EP_PARTNER_SHARED); | |
530 | if (!sendable) | |
531 | continue; | |
532 | ||
533 | info = adapter->hw.ep_shm_info[epid].tx.info; | |
534 | ||
16bbec3a TI |
535 | if (!(info->v1i.rx_status & FJES_RX_MTU_CHANGING_DONE)) |
536 | return; | |
537 | ||
ac63b947 TI |
538 | if (EP_RING_FULL(info->v1i.head, info->v1i.tail, |
539 | info->v1i.count_max)) { | |
540 | all_queue_available = 0; | |
541 | break; | |
542 | } | |
543 | } | |
544 | ||
545 | if (all_queue_available) { | |
546 | netif_wake_queue(netdev); | |
547 | return; | |
548 | } | |
549 | } | |
550 | ||
551 | usleep_range(50, 100); | |
552 | ||
553 | queue_work(adapter->txrx_wq, &adapter->tx_stall_task); | |
554 | } | |
555 | ||
ff5b4210 TI |
556 | static void fjes_force_close_task(struct work_struct *work) |
557 | { | |
558 | struct fjes_adapter *adapter = container_of(work, | |
559 | struct fjes_adapter, force_close_task); | |
560 | struct net_device *netdev = adapter->netdev; | |
561 | ||
562 | rtnl_lock(); | |
563 | dev_close(netdev); | |
564 | rtnl_unlock(); | |
565 | } | |
566 | ||
b772b9dc TI |
567 | static void fjes_raise_intr_rxdata_task(struct work_struct *work) |
568 | { | |
569 | struct fjes_adapter *adapter = container_of(work, | |
570 | struct fjes_adapter, raise_intr_rxdata_task); | |
571 | struct fjes_hw *hw = &adapter->hw; | |
572 | enum ep_partner_status pstatus; | |
573 | int max_epid, my_epid, epid; | |
574 | ||
575 | my_epid = hw->my_epid; | |
576 | max_epid = hw->max_epid; | |
577 | ||
578 | for (epid = 0; epid < max_epid; epid++) | |
579 | hw->ep_shm_info[epid].tx_status_work = 0; | |
580 | ||
581 | for (epid = 0; epid < max_epid; epid++) { | |
582 | if (epid == my_epid) | |
583 | continue; | |
584 | ||
585 | pstatus = fjes_hw_get_partner_ep_status(hw, epid); | |
586 | if (pstatus == EP_PARTNER_SHARED) { | |
587 | hw->ep_shm_info[epid].tx_status_work = | |
588 | hw->ep_shm_info[epid].tx.info->v1i.tx_status; | |
589 | ||
590 | if (hw->ep_shm_info[epid].tx_status_work == | |
591 | FJES_TX_DELAY_SEND_PENDING) { | |
592 | hw->ep_shm_info[epid].tx.info->v1i.tx_status = | |
593 | FJES_TX_DELAY_SEND_NONE; | |
594 | } | |
595 | } | |
596 | } | |
597 | ||
598 | for (epid = 0; epid < max_epid; epid++) { | |
599 | if (epid == my_epid) | |
600 | continue; | |
601 | ||
602 | pstatus = fjes_hw_get_partner_ep_status(hw, epid); | |
603 | if ((hw->ep_shm_info[epid].tx_status_work == | |
604 | FJES_TX_DELAY_SEND_PENDING) && | |
605 | (pstatus == EP_PARTNER_SHARED) && | |
19a0a7fd TI |
606 | !(hw->ep_shm_info[epid].rx.info->v1i.rx_status & |
607 | FJES_RX_POLL_WORK)) { | |
b772b9dc TI |
608 | fjes_hw_raise_interrupt(hw, epid, |
609 | REG_ICTL_MASK_RX_DATA); | |
21b7efbc | 610 | hw->ep_shm_info[epid].ep_stats.send_intr_rx += 1; |
b772b9dc TI |
611 | } |
612 | } | |
613 | ||
614 | usleep_range(500, 1000); | |
615 | } | |
616 | ||
9acf51cb TI |
617 | static int fjes_tx_send(struct fjes_adapter *adapter, int dest, |
618 | void *data, size_t len) | |
619 | { | |
620 | int retval; | |
621 | ||
622 | retval = fjes_hw_epbuf_tx_pkt_send(&adapter->hw.ep_shm_info[dest].tx, | |
623 | data, len); | |
624 | if (retval) | |
625 | return retval; | |
626 | ||
627 | adapter->hw.ep_shm_info[dest].tx.info->v1i.tx_status = | |
628 | FJES_TX_DELAY_SEND_PENDING; | |
b772b9dc TI |
629 | if (!work_pending(&adapter->raise_intr_rxdata_task)) |
630 | queue_work(adapter->txrx_wq, | |
631 | &adapter->raise_intr_rxdata_task); | |
9acf51cb TI |
632 | |
633 | retval = 0; | |
634 | return retval; | |
635 | } | |
636 | ||
637 | static netdev_tx_t | |
638 | fjes_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
639 | { | |
640 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
641 | struct fjes_hw *hw = &adapter->hw; | |
642 | ||
643 | int max_epid, my_epid, dest_epid; | |
644 | enum ep_partner_status pstatus; | |
645 | struct netdev_queue *cur_queue; | |
646 | char shortpkt[VLAN_ETH_HLEN]; | |
647 | bool is_multi, vlan; | |
648 | struct ethhdr *eth; | |
649 | u16 queue_no = 0; | |
650 | u16 vlan_id = 0; | |
651 | netdev_tx_t ret; | |
652 | char *data; | |
653 | int len; | |
654 | ||
655 | ret = NETDEV_TX_OK; | |
656 | is_multi = false; | |
657 | cur_queue = netdev_get_tx_queue(netdev, queue_no); | |
658 | ||
659 | eth = (struct ethhdr *)skb->data; | |
660 | my_epid = hw->my_epid; | |
661 | ||
662 | vlan = (vlan_get_tag(skb, &vlan_id) == 0) ? true : false; | |
663 | ||
664 | data = skb->data; | |
665 | len = skb->len; | |
666 | ||
667 | if (is_multicast_ether_addr(eth->h_dest)) { | |
668 | dest_epid = 0; | |
669 | max_epid = hw->max_epid; | |
670 | is_multi = true; | |
671 | } else if (is_local_ether_addr(eth->h_dest)) { | |
672 | dest_epid = eth->h_dest[ETH_ALEN - 1]; | |
673 | max_epid = dest_epid + 1; | |
674 | ||
675 | if ((eth->h_dest[0] == 0x02) && | |
676 | (0x00 == (eth->h_dest[1] | eth->h_dest[2] | | |
677 | eth->h_dest[3] | eth->h_dest[4])) && | |
678 | (dest_epid < hw->max_epid)) { | |
679 | ; | |
680 | } else { | |
681 | dest_epid = 0; | |
682 | max_epid = 0; | |
683 | ret = NETDEV_TX_OK; | |
684 | ||
685 | adapter->stats64.tx_packets += 1; | |
686 | hw->ep_shm_info[my_epid].net_stats.tx_packets += 1; | |
687 | adapter->stats64.tx_bytes += len; | |
688 | hw->ep_shm_info[my_epid].net_stats.tx_bytes += len; | |
689 | } | |
690 | } else { | |
691 | dest_epid = 0; | |
692 | max_epid = 0; | |
693 | ret = NETDEV_TX_OK; | |
694 | ||
695 | adapter->stats64.tx_packets += 1; | |
696 | hw->ep_shm_info[my_epid].net_stats.tx_packets += 1; | |
697 | adapter->stats64.tx_bytes += len; | |
698 | hw->ep_shm_info[my_epid].net_stats.tx_bytes += len; | |
699 | } | |
700 | ||
701 | for (; dest_epid < max_epid; dest_epid++) { | |
702 | if (my_epid == dest_epid) | |
703 | continue; | |
704 | ||
705 | pstatus = fjes_hw_get_partner_ep_status(hw, dest_epid); | |
706 | if (pstatus != EP_PARTNER_SHARED) { | |
21b7efbc TI |
707 | if (!is_multi) |
708 | hw->ep_shm_info[dest_epid].ep_stats | |
709 | .tx_dropped_not_shared += 1; | |
9acf51cb TI |
710 | ret = NETDEV_TX_OK; |
711 | } else if (!fjes_hw_check_epbuf_version( | |
712 | &adapter->hw.ep_shm_info[dest_epid].rx, 0)) { | |
713 | /* version is NOT 0 */ | |
714 | adapter->stats64.tx_carrier_errors += 1; | |
3c3bd4a9 | 715 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb | 716 | .tx_carrier_errors += 1; |
21b7efbc TI |
717 | hw->ep_shm_info[dest_epid].ep_stats |
718 | .tx_dropped_ver_mismatch += 1; | |
9acf51cb TI |
719 | |
720 | ret = NETDEV_TX_OK; | |
721 | } else if (!fjes_hw_check_mtu( | |
722 | &adapter->hw.ep_shm_info[dest_epid].rx, | |
723 | netdev->mtu)) { | |
724 | adapter->stats64.tx_dropped += 1; | |
3c3bd4a9 | 725 | hw->ep_shm_info[dest_epid].net_stats.tx_dropped += 1; |
9acf51cb | 726 | adapter->stats64.tx_errors += 1; |
3c3bd4a9 | 727 | hw->ep_shm_info[dest_epid].net_stats.tx_errors += 1; |
21b7efbc TI |
728 | hw->ep_shm_info[dest_epid].ep_stats |
729 | .tx_dropped_buf_size_mismatch += 1; | |
9acf51cb TI |
730 | |
731 | ret = NETDEV_TX_OK; | |
732 | } else if (vlan && | |
733 | !fjes_hw_check_vlan_id( | |
734 | &adapter->hw.ep_shm_info[dest_epid].rx, | |
735 | vlan_id)) { | |
21b7efbc TI |
736 | hw->ep_shm_info[dest_epid].ep_stats |
737 | .tx_dropped_vlanid_mismatch += 1; | |
9acf51cb TI |
738 | ret = NETDEV_TX_OK; |
739 | } else { | |
740 | if (len < VLAN_ETH_HLEN) { | |
741 | memset(shortpkt, 0, VLAN_ETH_HLEN); | |
742 | memcpy(shortpkt, skb->data, skb->len); | |
743 | len = VLAN_ETH_HLEN; | |
744 | data = shortpkt; | |
745 | } | |
746 | ||
747 | if (adapter->tx_retry_count == 0) { | |
748 | adapter->tx_start_jiffies = jiffies; | |
749 | adapter->tx_retry_count = 1; | |
750 | } else { | |
751 | adapter->tx_retry_count++; | |
752 | } | |
753 | ||
754 | if (fjes_tx_send(adapter, dest_epid, data, len)) { | |
755 | if (is_multi) { | |
756 | ret = NETDEV_TX_OK; | |
757 | } else if ( | |
758 | ((long)jiffies - | |
759 | (long)adapter->tx_start_jiffies) >= | |
760 | FJES_TX_RETRY_TIMEOUT) { | |
761 | adapter->stats64.tx_fifo_errors += 1; | |
3c3bd4a9 | 762 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
763 | .tx_fifo_errors += 1; |
764 | adapter->stats64.tx_errors += 1; | |
3c3bd4a9 | 765 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
766 | .tx_errors += 1; |
767 | ||
768 | ret = NETDEV_TX_OK; | |
769 | } else { | |
860e9538 | 770 | netif_trans_update(netdev); |
21b7efbc TI |
771 | hw->ep_shm_info[dest_epid].ep_stats |
772 | .tx_buffer_full += 1; | |
9acf51cb TI |
773 | netif_tx_stop_queue(cur_queue); |
774 | ||
ac63b947 TI |
775 | if (!work_pending(&adapter->tx_stall_task)) |
776 | queue_work(adapter->txrx_wq, | |
777 | &adapter->tx_stall_task); | |
778 | ||
9acf51cb TI |
779 | ret = NETDEV_TX_BUSY; |
780 | } | |
781 | } else { | |
782 | if (!is_multi) { | |
783 | adapter->stats64.tx_packets += 1; | |
3c3bd4a9 | 784 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
785 | .tx_packets += 1; |
786 | adapter->stats64.tx_bytes += len; | |
3c3bd4a9 | 787 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
788 | .tx_bytes += len; |
789 | } | |
790 | ||
791 | adapter->tx_retry_count = 0; | |
792 | ret = NETDEV_TX_OK; | |
793 | } | |
794 | } | |
795 | } | |
796 | ||
797 | if (ret == NETDEV_TX_OK) { | |
798 | dev_kfree_skb(skb); | |
799 | if (is_multi) { | |
800 | adapter->stats64.tx_packets += 1; | |
801 | hw->ep_shm_info[my_epid].net_stats.tx_packets += 1; | |
802 | adapter->stats64.tx_bytes += 1; | |
803 | hw->ep_shm_info[my_epid].net_stats.tx_bytes += len; | |
804 | } | |
805 | } | |
806 | ||
807 | return ret; | |
808 | } | |
809 | ||
4393e767 TI |
810 | static void fjes_tx_retry(struct net_device *netdev) |
811 | { | |
812 | struct netdev_queue *queue = netdev_get_tx_queue(netdev, 0); | |
813 | ||
814 | netif_tx_wake_queue(queue); | |
815 | } | |
816 | ||
bc1f4470 | 817 | static void |
879bc9a3 TI |
818 | fjes_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) |
819 | { | |
820 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
821 | ||
822 | memcpy(stats, &adapter->stats64, sizeof(struct rtnl_link_stats64)); | |
879bc9a3 TI |
823 | } |
824 | ||
b9e23a67 TI |
825 | static int fjes_change_mtu(struct net_device *netdev, int new_mtu) |
826 | { | |
16bbec3a | 827 | struct fjes_adapter *adapter = netdev_priv(netdev); |
b9e23a67 | 828 | bool running = netif_running(netdev); |
16bbec3a | 829 | struct fjes_hw *hw = &adapter->hw; |
bd5a2569 | 830 | unsigned long flags; |
16bbec3a TI |
831 | int ret = -EINVAL; |
832 | int idx, epidx; | |
b9e23a67 TI |
833 | |
834 | for (idx = 0; fjes_support_mtu[idx] != 0; idx++) { | |
835 | if (new_mtu <= fjes_support_mtu[idx]) { | |
836 | new_mtu = fjes_support_mtu[idx]; | |
837 | if (new_mtu == netdev->mtu) | |
838 | return 0; | |
839 | ||
16bbec3a TI |
840 | ret = 0; |
841 | break; | |
842 | } | |
843 | } | |
844 | ||
845 | if (ret) | |
846 | return ret; | |
b9e23a67 | 847 | |
16bbec3a | 848 | if (running) { |
bd5a2569 | 849 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
16bbec3a TI |
850 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
851 | if (epidx == hw->my_epid) | |
852 | continue; | |
853 | hw->ep_shm_info[epidx].tx.info->v1i.rx_status &= | |
854 | ~FJES_RX_MTU_CHANGING_DONE; | |
855 | } | |
bd5a2569 TI |
856 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
857 | ||
16bbec3a TI |
858 | netif_tx_stop_all_queues(netdev); |
859 | netif_carrier_off(netdev); | |
860 | cancel_work_sync(&adapter->tx_stall_task); | |
861 | napi_disable(&adapter->napi); | |
b9e23a67 | 862 | |
16bbec3a | 863 | msleep(1000); |
b9e23a67 | 864 | |
16bbec3a TI |
865 | netif_tx_stop_all_queues(netdev); |
866 | } | |
867 | ||
868 | netdev->mtu = new_mtu; | |
869 | ||
870 | if (running) { | |
871 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
872 | if (epidx == hw->my_epid) | |
873 | continue; | |
874 | ||
bd5a2569 | 875 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
16bbec3a TI |
876 | fjes_hw_setup_epbuf(&hw->ep_shm_info[epidx].tx, |
877 | netdev->dev_addr, | |
878 | netdev->mtu); | |
16bbec3a TI |
879 | |
880 | hw->ep_shm_info[epidx].tx.info->v1i.rx_status |= | |
881 | FJES_RX_MTU_CHANGING_DONE; | |
bd5a2569 | 882 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
b9e23a67 | 883 | } |
16bbec3a TI |
884 | |
885 | netif_tx_wake_all_queues(netdev); | |
886 | netif_carrier_on(netdev); | |
887 | napi_enable(&adapter->napi); | |
bd5a2569 | 888 | napi_schedule(&adapter->napi); |
b9e23a67 TI |
889 | } |
890 | ||
16bbec3a | 891 | return ret; |
b9e23a67 TI |
892 | } |
893 | ||
3e3fedda TI |
894 | static int fjes_vlan_rx_add_vid(struct net_device *netdev, |
895 | __be16 proto, u16 vid) | |
896 | { | |
897 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
898 | bool ret = true; | |
899 | int epid; | |
900 | ||
901 | for (epid = 0; epid < adapter->hw.max_epid; epid++) { | |
902 | if (epid == adapter->hw.my_epid) | |
903 | continue; | |
904 | ||
905 | if (!fjes_hw_check_vlan_id( | |
906 | &adapter->hw.ep_shm_info[epid].tx, vid)) | |
907 | ret = fjes_hw_set_vlan_id( | |
908 | &adapter->hw.ep_shm_info[epid].tx, vid); | |
909 | } | |
910 | ||
911 | return ret ? 0 : -ENOSPC; | |
912 | } | |
913 | ||
914 | static int fjes_vlan_rx_kill_vid(struct net_device *netdev, | |
915 | __be16 proto, u16 vid) | |
916 | { | |
917 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
918 | int epid; | |
919 | ||
920 | for (epid = 0; epid < adapter->hw.max_epid; epid++) { | |
921 | if (epid == adapter->hw.my_epid) | |
922 | continue; | |
923 | ||
924 | fjes_hw_del_vlan_id(&adapter->hw.ep_shm_info[epid].tx, vid); | |
925 | } | |
926 | ||
927 | return 0; | |
928 | } | |
929 | ||
cb79eaae TI |
930 | static void fjes_txrx_stop_req_irq(struct fjes_adapter *adapter, |
931 | int src_epid) | |
932 | { | |
933 | struct fjes_hw *hw = &adapter->hw; | |
934 | enum ep_partner_status status; | |
bd5a2569 | 935 | unsigned long flags; |
cb79eaae TI |
936 | |
937 | status = fjes_hw_get_partner_ep_status(hw, src_epid); | |
82f6aea8 | 938 | trace_fjes_txrx_stop_req_irq_pre(hw, src_epid, status); |
cb79eaae TI |
939 | switch (status) { |
940 | case EP_PARTNER_UNSHARE: | |
941 | case EP_PARTNER_COMPLETE: | |
942 | default: | |
943 | break; | |
944 | case EP_PARTNER_WAITING: | |
945 | if (src_epid < hw->my_epid) { | |
bd5a2569 | 946 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
cb79eaae TI |
947 | hw->ep_shm_info[src_epid].tx.info->v1i.rx_status |= |
948 | FJES_RX_STOP_REQ_DONE; | |
bd5a2569 | 949 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
cb79eaae TI |
950 | |
951 | clear_bit(src_epid, &hw->txrx_stop_req_bit); | |
952 | set_bit(src_epid, &adapter->unshare_watch_bitmask); | |
953 | ||
954 | if (!work_pending(&adapter->unshare_watch_task)) | |
955 | queue_work(adapter->control_wq, | |
956 | &adapter->unshare_watch_task); | |
957 | } | |
958 | break; | |
959 | case EP_PARTNER_SHARED: | |
960 | if (hw->ep_shm_info[src_epid].rx.info->v1i.rx_status & | |
961 | FJES_RX_STOP_REQ_REQUEST) { | |
962 | set_bit(src_epid, &hw->epstop_req_bit); | |
963 | if (!work_pending(&hw->epstop_task)) | |
964 | queue_work(adapter->control_wq, | |
965 | &hw->epstop_task); | |
966 | } | |
967 | break; | |
968 | } | |
82f6aea8 | 969 | trace_fjes_txrx_stop_req_irq_post(hw, src_epid); |
cb79eaae TI |
970 | } |
971 | ||
972 | static void fjes_stop_req_irq(struct fjes_adapter *adapter, int src_epid) | |
973 | { | |
974 | struct fjes_hw *hw = &adapter->hw; | |
975 | enum ep_partner_status status; | |
bd5a2569 | 976 | unsigned long flags; |
cb79eaae TI |
977 | |
978 | set_bit(src_epid, &hw->hw_info.buffer_unshare_reserve_bit); | |
979 | ||
980 | status = fjes_hw_get_partner_ep_status(hw, src_epid); | |
82f6aea8 | 981 | trace_fjes_stop_req_irq_pre(hw, src_epid, status); |
cb79eaae TI |
982 | switch (status) { |
983 | case EP_PARTNER_WAITING: | |
bd5a2569 | 984 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
cb79eaae TI |
985 | hw->ep_shm_info[src_epid].tx.info->v1i.rx_status |= |
986 | FJES_RX_STOP_REQ_DONE; | |
bd5a2569 | 987 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
cb79eaae TI |
988 | clear_bit(src_epid, &hw->txrx_stop_req_bit); |
989 | /* fall through */ | |
990 | case EP_PARTNER_UNSHARE: | |
991 | case EP_PARTNER_COMPLETE: | |
992 | default: | |
993 | set_bit(src_epid, &adapter->unshare_watch_bitmask); | |
994 | if (!work_pending(&adapter->unshare_watch_task)) | |
995 | queue_work(adapter->control_wq, | |
996 | &adapter->unshare_watch_task); | |
997 | break; | |
998 | case EP_PARTNER_SHARED: | |
999 | set_bit(src_epid, &hw->epstop_req_bit); | |
1000 | ||
1001 | if (!work_pending(&hw->epstop_task)) | |
1002 | queue_work(adapter->control_wq, &hw->epstop_task); | |
1003 | break; | |
1004 | } | |
82f6aea8 | 1005 | trace_fjes_stop_req_irq_post(hw, src_epid); |
cb79eaae TI |
1006 | } |
1007 | ||
785f28e0 TI |
1008 | static void fjes_update_zone_irq(struct fjes_adapter *adapter, |
1009 | int src_epid) | |
1010 | { | |
1011 | struct fjes_hw *hw = &adapter->hw; | |
1012 | ||
1013 | if (!work_pending(&hw->update_zone_task)) | |
1014 | queue_work(adapter->control_wq, &hw->update_zone_task); | |
1015 | } | |
1016 | ||
e5d486dc TI |
1017 | static irqreturn_t fjes_intr(int irq, void *data) |
1018 | { | |
1019 | struct fjes_adapter *adapter = data; | |
1020 | struct fjes_hw *hw = &adapter->hw; | |
1021 | irqreturn_t ret; | |
1022 | u32 icr; | |
1023 | ||
1024 | icr = fjes_hw_capture_interrupt_status(hw); | |
1025 | ||
26585930 | 1026 | if (icr & REG_IS_MASK_IS_ASSERT) { |
21b7efbc | 1027 | if (icr & REG_ICTL_MASK_RX_DATA) { |
26585930 | 1028 | fjes_rx_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1029 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1030 | .recv_intr_rx += 1; | |
1031 | } | |
26585930 | 1032 | |
21b7efbc | 1033 | if (icr & REG_ICTL_MASK_DEV_STOP_REQ) { |
cb79eaae | 1034 | fjes_stop_req_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1035 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1036 | .recv_intr_stop += 1; | |
1037 | } | |
cb79eaae | 1038 | |
21b7efbc | 1039 | if (icr & REG_ICTL_MASK_TXRX_STOP_REQ) { |
cb79eaae | 1040 | fjes_txrx_stop_req_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1041 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1042 | .recv_intr_unshare += 1; | |
1043 | } | |
cb79eaae TI |
1044 | |
1045 | if (icr & REG_ICTL_MASK_TXRX_STOP_DONE) | |
1046 | fjes_hw_set_irqmask(hw, | |
1047 | REG_ICTL_MASK_TXRX_STOP_DONE, true); | |
1048 | ||
21b7efbc | 1049 | if (icr & REG_ICTL_MASK_INFO_UPDATE) { |
785f28e0 | 1050 | fjes_update_zone_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1051 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1052 | .recv_intr_zoneupdate += 1; | |
1053 | } | |
785f28e0 | 1054 | |
e5d486dc | 1055 | ret = IRQ_HANDLED; |
26585930 | 1056 | } else { |
e5d486dc | 1057 | ret = IRQ_NONE; |
26585930 | 1058 | } |
e5d486dc TI |
1059 | |
1060 | return ret; | |
1061 | } | |
1062 | ||
26585930 TI |
1063 | static int fjes_rxframe_search_exist(struct fjes_adapter *adapter, |
1064 | int start_epid) | |
1065 | { | |
1066 | struct fjes_hw *hw = &adapter->hw; | |
1067 | enum ep_partner_status pstatus; | |
1068 | int max_epid, cur_epid; | |
1069 | int i; | |
1070 | ||
1071 | max_epid = hw->max_epid; | |
1072 | start_epid = (start_epid + 1 + max_epid) % max_epid; | |
1073 | ||
1074 | for (i = 0; i < max_epid; i++) { | |
1075 | cur_epid = (start_epid + i) % max_epid; | |
1076 | if (cur_epid == hw->my_epid) | |
1077 | continue; | |
1078 | ||
1079 | pstatus = fjes_hw_get_partner_ep_status(hw, cur_epid); | |
1080 | if (pstatus == EP_PARTNER_SHARED) { | |
1081 | if (!fjes_hw_epbuf_rx_is_empty( | |
1082 | &hw->ep_shm_info[cur_epid].rx)) | |
1083 | return cur_epid; | |
1084 | } | |
1085 | } | |
1086 | return -1; | |
1087 | } | |
1088 | ||
1089 | static void *fjes_rxframe_get(struct fjes_adapter *adapter, size_t *psize, | |
1090 | int *cur_epid) | |
1091 | { | |
1092 | void *frame; | |
1093 | ||
1094 | *cur_epid = fjes_rxframe_search_exist(adapter, *cur_epid); | |
1095 | if (*cur_epid < 0) | |
1096 | return NULL; | |
1097 | ||
1098 | frame = | |
1099 | fjes_hw_epbuf_rx_curpkt_get_addr( | |
1100 | &adapter->hw.ep_shm_info[*cur_epid].rx, psize); | |
1101 | ||
1102 | return frame; | |
1103 | } | |
1104 | ||
1105 | static void fjes_rxframe_release(struct fjes_adapter *adapter, int cur_epid) | |
1106 | { | |
1107 | fjes_hw_epbuf_rx_curpkt_drop(&adapter->hw.ep_shm_info[cur_epid].rx); | |
1108 | } | |
1109 | ||
1110 | static void fjes_rx_irq(struct fjes_adapter *adapter, int src_epid) | |
1111 | { | |
1112 | struct fjes_hw *hw = &adapter->hw; | |
1113 | ||
1114 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_RX_DATA, true); | |
1115 | ||
1116 | adapter->unset_rx_last = true; | |
1117 | napi_schedule(&adapter->napi); | |
1118 | } | |
1119 | ||
1120 | static int fjes_poll(struct napi_struct *napi, int budget) | |
1121 | { | |
1122 | struct fjes_adapter *adapter = | |
1123 | container_of(napi, struct fjes_adapter, napi); | |
1124 | struct net_device *netdev = napi->dev; | |
1125 | struct fjes_hw *hw = &adapter->hw; | |
1126 | struct sk_buff *skb; | |
1127 | int work_done = 0; | |
1128 | int cur_epid = 0; | |
1129 | int epidx; | |
1130 | size_t frame_len; | |
1131 | void *frame; | |
1132 | ||
bd5a2569 | 1133 | spin_lock(&hw->rx_status_lock); |
26585930 TI |
1134 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
1135 | if (epidx == hw->my_epid) | |
1136 | continue; | |
1137 | ||
bd5a2569 TI |
1138 | if (fjes_hw_get_partner_ep_status(hw, epidx) == |
1139 | EP_PARTNER_SHARED) | |
1140 | adapter->hw.ep_shm_info[epidx] | |
1141 | .tx.info->v1i.rx_status |= FJES_RX_POLL_WORK; | |
26585930 | 1142 | } |
bd5a2569 | 1143 | spin_unlock(&hw->rx_status_lock); |
26585930 TI |
1144 | |
1145 | while (work_done < budget) { | |
1146 | prefetch(&adapter->hw); | |
1147 | frame = fjes_rxframe_get(adapter, &frame_len, &cur_epid); | |
1148 | ||
1149 | if (frame) { | |
1150 | skb = napi_alloc_skb(napi, frame_len); | |
1151 | if (!skb) { | |
1152 | adapter->stats64.rx_dropped += 1; | |
1153 | hw->ep_shm_info[cur_epid].net_stats | |
1154 | .rx_dropped += 1; | |
1155 | adapter->stats64.rx_errors += 1; | |
1156 | hw->ep_shm_info[cur_epid].net_stats | |
1157 | .rx_errors += 1; | |
1158 | } else { | |
1159 | memcpy(skb_put(skb, frame_len), | |
1160 | frame, frame_len); | |
1161 | skb->protocol = eth_type_trans(skb, netdev); | |
1162 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1163 | ||
1164 | netif_receive_skb(skb); | |
1165 | ||
1166 | work_done++; | |
1167 | ||
1168 | adapter->stats64.rx_packets += 1; | |
1169 | hw->ep_shm_info[cur_epid].net_stats | |
1170 | .rx_packets += 1; | |
1171 | adapter->stats64.rx_bytes += frame_len; | |
1172 | hw->ep_shm_info[cur_epid].net_stats | |
1173 | .rx_bytes += frame_len; | |
1174 | ||
1175 | if (is_multicast_ether_addr( | |
1176 | ((struct ethhdr *)frame)->h_dest)) { | |
1177 | adapter->stats64.multicast += 1; | |
1178 | hw->ep_shm_info[cur_epid].net_stats | |
1179 | .multicast += 1; | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | fjes_rxframe_release(adapter, cur_epid); | |
1184 | adapter->unset_rx_last = true; | |
1185 | } else { | |
1186 | break; | |
1187 | } | |
1188 | } | |
1189 | ||
1190 | if (work_done < budget) { | |
6ad20165 | 1191 | napi_complete_done(napi, work_done); |
26585930 TI |
1192 | |
1193 | if (adapter->unset_rx_last) { | |
1194 | adapter->rx_last_jiffies = jiffies; | |
1195 | adapter->unset_rx_last = false; | |
1196 | } | |
1197 | ||
1198 | if (((long)jiffies - (long)adapter->rx_last_jiffies) < 3) { | |
1199 | napi_reschedule(napi); | |
1200 | } else { | |
bd5a2569 | 1201 | spin_lock(&hw->rx_status_lock); |
26585930 TI |
1202 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
1203 | if (epidx == hw->my_epid) | |
1204 | continue; | |
bd5a2569 TI |
1205 | if (fjes_hw_get_partner_ep_status(hw, epidx) == |
1206 | EP_PARTNER_SHARED) | |
1207 | adapter->hw.ep_shm_info[epidx].tx | |
1208 | .info->v1i.rx_status &= | |
26585930 TI |
1209 | ~FJES_RX_POLL_WORK; |
1210 | } | |
bd5a2569 | 1211 | spin_unlock(&hw->rx_status_lock); |
26585930 TI |
1212 | |
1213 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_RX_DATA, false); | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | return work_done; | |
1218 | } | |
1219 | ||
658d439b TI |
1220 | /* fjes_probe - Device Initialization Routine */ |
1221 | static int fjes_probe(struct platform_device *plat_dev) | |
1222 | { | |
2fcbca68 TI |
1223 | struct fjes_adapter *adapter; |
1224 | struct net_device *netdev; | |
1225 | struct resource *res; | |
1226 | struct fjes_hw *hw; | |
1227 | int err; | |
1228 | ||
1229 | err = -ENOMEM; | |
1230 | netdev = alloc_netdev_mq(sizeof(struct fjes_adapter), "es%d", | |
1231 | NET_NAME_UNKNOWN, fjes_netdev_setup, | |
1232 | FJES_MAX_QUEUES); | |
1233 | ||
1234 | if (!netdev) | |
1235 | goto err_out; | |
1236 | ||
1237 | SET_NETDEV_DEV(netdev, &plat_dev->dev); | |
1238 | ||
1239 | dev_set_drvdata(&plat_dev->dev, netdev); | |
1240 | adapter = netdev_priv(netdev); | |
1241 | adapter->netdev = netdev; | |
1242 | adapter->plat_dev = plat_dev; | |
1243 | hw = &adapter->hw; | |
1244 | hw->back = adapter; | |
1245 | ||
1246 | /* setup the private structure */ | |
1247 | err = fjes_sw_init(adapter); | |
1248 | if (err) | |
1249 | goto err_free_netdev; | |
1250 | ||
ff5b4210 | 1251 | INIT_WORK(&adapter->force_close_task, fjes_force_close_task); |
2fcbca68 TI |
1252 | adapter->force_reset = false; |
1253 | adapter->open_guard = false; | |
1254 | ||
f2edc4e1 BS |
1255 | adapter->txrx_wq = alloc_workqueue(DRV_NAME "/txrx", WQ_MEM_RECLAIM, 0); |
1256 | adapter->control_wq = alloc_workqueue(DRV_NAME "/control", | |
1257 | WQ_MEM_RECLAIM, 0); | |
b772b9dc | 1258 | |
ac63b947 | 1259 | INIT_WORK(&adapter->tx_stall_task, fjes_tx_stall_task); |
b772b9dc TI |
1260 | INIT_WORK(&adapter->raise_intr_rxdata_task, |
1261 | fjes_raise_intr_rxdata_task); | |
8fc4cadb TI |
1262 | INIT_WORK(&adapter->unshare_watch_task, fjes_watch_unshare_task); |
1263 | adapter->unshare_watch_bitmask = 0; | |
b772b9dc | 1264 | |
8edb62a8 TI |
1265 | INIT_DELAYED_WORK(&adapter->interrupt_watch_task, fjes_irq_watch_task); |
1266 | adapter->interrupt_watch_enable = false; | |
1267 | ||
2fcbca68 TI |
1268 | res = platform_get_resource(plat_dev, IORESOURCE_MEM, 0); |
1269 | hw->hw_res.start = res->start; | |
e0897ae3 | 1270 | hw->hw_res.size = resource_size(res); |
2fcbca68 TI |
1271 | hw->hw_res.irq = platform_get_irq(plat_dev, 0); |
1272 | err = fjes_hw_init(&adapter->hw); | |
1273 | if (err) | |
1274 | goto err_free_netdev; | |
1275 | ||
1276 | /* setup MAC address (02:00:00:00:00:[epid])*/ | |
1277 | netdev->dev_addr[0] = 2; | |
1278 | netdev->dev_addr[1] = 0; | |
1279 | netdev->dev_addr[2] = 0; | |
1280 | netdev->dev_addr[3] = 0; | |
1281 | netdev->dev_addr[4] = 0; | |
1282 | netdev->dev_addr[5] = hw->my_epid; /* EPID */ | |
1283 | ||
1284 | err = register_netdev(netdev); | |
1285 | if (err) | |
1286 | goto err_hw_exit; | |
1287 | ||
1288 | netif_carrier_off(netdev); | |
1289 | ||
c753119e TI |
1290 | fjes_dbg_adapter_init(adapter); |
1291 | ||
658d439b | 1292 | return 0; |
2fcbca68 TI |
1293 | |
1294 | err_hw_exit: | |
1295 | fjes_hw_exit(&adapter->hw); | |
1296 | err_free_netdev: | |
1297 | free_netdev(netdev); | |
1298 | err_out: | |
1299 | return err; | |
658d439b TI |
1300 | } |
1301 | ||
1302 | /* fjes_remove - Device Removal Routine */ | |
1303 | static int fjes_remove(struct platform_device *plat_dev) | |
1304 | { | |
2fcbca68 TI |
1305 | struct net_device *netdev = dev_get_drvdata(&plat_dev->dev); |
1306 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
1307 | struct fjes_hw *hw = &adapter->hw; | |
1308 | ||
c753119e TI |
1309 | fjes_dbg_adapter_exit(adapter); |
1310 | ||
8edb62a8 | 1311 | cancel_delayed_work_sync(&adapter->interrupt_watch_task); |
8fc4cadb | 1312 | cancel_work_sync(&adapter->unshare_watch_task); |
b772b9dc | 1313 | cancel_work_sync(&adapter->raise_intr_rxdata_task); |
ac63b947 | 1314 | cancel_work_sync(&adapter->tx_stall_task); |
8edb62a8 TI |
1315 | if (adapter->control_wq) |
1316 | destroy_workqueue(adapter->control_wq); | |
b772b9dc TI |
1317 | if (adapter->txrx_wq) |
1318 | destroy_workqueue(adapter->txrx_wq); | |
1319 | ||
2fcbca68 TI |
1320 | unregister_netdev(netdev); |
1321 | ||
1322 | fjes_hw_exit(hw); | |
1323 | ||
26585930 TI |
1324 | netif_napi_del(&adapter->napi); |
1325 | ||
2fcbca68 TI |
1326 | free_netdev(netdev); |
1327 | ||
658d439b TI |
1328 | return 0; |
1329 | } | |
1330 | ||
2fcbca68 TI |
1331 | static int fjes_sw_init(struct fjes_adapter *adapter) |
1332 | { | |
26585930 TI |
1333 | struct net_device *netdev = adapter->netdev; |
1334 | ||
1335 | netif_napi_add(netdev, &adapter->napi, fjes_poll, 64); | |
1336 | ||
2fcbca68 TI |
1337 | return 0; |
1338 | } | |
1339 | ||
1340 | /* fjes_netdev_setup - netdevice initialization routine */ | |
1341 | static void fjes_netdev_setup(struct net_device *netdev) | |
1342 | { | |
1343 | ether_setup(netdev); | |
1344 | ||
1345 | netdev->watchdog_timeo = FJES_TX_RETRY_INTERVAL; | |
1346 | netdev->netdev_ops = &fjes_netdev_ops; | |
786eec27 | 1347 | fjes_set_ethtool_ops(netdev); |
16bbec3a | 1348 | netdev->mtu = fjes_support_mtu[3]; |
b3e3893e JW |
1349 | netdev->min_mtu = fjes_support_mtu[0]; |
1350 | netdev->max_mtu = fjes_support_mtu[3]; | |
2fcbca68 | 1351 | netdev->flags |= IFF_BROADCAST; |
fe8daf5f | 1352 | netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
2fcbca68 TI |
1353 | } |
1354 | ||
8edb62a8 TI |
1355 | static void fjes_irq_watch_task(struct work_struct *work) |
1356 | { | |
1357 | struct fjes_adapter *adapter = container_of(to_delayed_work(work), | |
1358 | struct fjes_adapter, interrupt_watch_task); | |
1359 | ||
1360 | local_irq_disable(); | |
1361 | fjes_intr(adapter->hw.hw_res.irq, adapter); | |
1362 | local_irq_enable(); | |
1363 | ||
1364 | if (fjes_rxframe_search_exist(adapter, 0) >= 0) | |
1365 | napi_schedule(&adapter->napi); | |
1366 | ||
1367 | if (adapter->interrupt_watch_enable) { | |
1368 | if (!delayed_work_pending(&adapter->interrupt_watch_task)) | |
1369 | queue_delayed_work(adapter->control_wq, | |
1370 | &adapter->interrupt_watch_task, | |
1371 | FJES_IRQ_WATCH_DELAY); | |
1372 | } | |
1373 | } | |
1374 | ||
8fc4cadb TI |
1375 | static void fjes_watch_unshare_task(struct work_struct *work) |
1376 | { | |
1377 | struct fjes_adapter *adapter = | |
1378 | container_of(work, struct fjes_adapter, unshare_watch_task); | |
1379 | ||
1380 | struct net_device *netdev = adapter->netdev; | |
1381 | struct fjes_hw *hw = &adapter->hw; | |
1382 | ||
1383 | int unshare_watch, unshare_reserve; | |
1384 | int max_epid, my_epid, epidx; | |
1385 | int stop_req, stop_req_done; | |
1386 | ulong unshare_watch_bitmask; | |
bd5a2569 | 1387 | unsigned long flags; |
8fc4cadb TI |
1388 | int wait_time = 0; |
1389 | int is_shared; | |
1390 | int ret; | |
1391 | ||
1392 | my_epid = hw->my_epid; | |
1393 | max_epid = hw->max_epid; | |
1394 | ||
1395 | unshare_watch_bitmask = adapter->unshare_watch_bitmask; | |
1396 | adapter->unshare_watch_bitmask = 0; | |
1397 | ||
1398 | while ((unshare_watch_bitmask || hw->txrx_stop_req_bit) && | |
1399 | (wait_time < 3000)) { | |
1400 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
1401 | if (epidx == hw->my_epid) | |
1402 | continue; | |
1403 | ||
1404 | is_shared = fjes_hw_epid_is_shared(hw->hw_info.share, | |
1405 | epidx); | |
1406 | ||
1407 | stop_req = test_bit(epidx, &hw->txrx_stop_req_bit); | |
1408 | ||
1409 | stop_req_done = hw->ep_shm_info[epidx].rx.info->v1i.rx_status & | |
1410 | FJES_RX_STOP_REQ_DONE; | |
1411 | ||
1412 | unshare_watch = test_bit(epidx, &unshare_watch_bitmask); | |
1413 | ||
1414 | unshare_reserve = test_bit(epidx, | |
1415 | &hw->hw_info.buffer_unshare_reserve_bit); | |
1416 | ||
1417 | if ((!stop_req || | |
1418 | (is_shared && (!is_shared || !stop_req_done))) && | |
1419 | (is_shared || !unshare_watch || !unshare_reserve)) | |
1420 | continue; | |
1421 | ||
1422 | mutex_lock(&hw->hw_info.lock); | |
1423 | ret = fjes_hw_unregister_buff_addr(hw, epidx); | |
1424 | switch (ret) { | |
1425 | case 0: | |
1426 | break; | |
1427 | case -ENOMSG: | |
1428 | case -EBUSY: | |
1429 | default: | |
1430 | if (!work_pending( | |
1431 | &adapter->force_close_task)) { | |
1432 | adapter->force_reset = true; | |
1433 | schedule_work( | |
1434 | &adapter->force_close_task); | |
1435 | } | |
1436 | break; | |
1437 | } | |
1438 | mutex_unlock(&hw->hw_info.lock); | |
21b7efbc TI |
1439 | hw->ep_shm_info[epidx].ep_stats |
1440 | .com_unregist_buf_exec += 1; | |
8fc4cadb | 1441 | |
bd5a2569 | 1442 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1443 | fjes_hw_setup_epbuf(&hw->ep_shm_info[epidx].tx, |
1444 | netdev->dev_addr, netdev->mtu); | |
bd5a2569 | 1445 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1446 | |
1447 | clear_bit(epidx, &hw->txrx_stop_req_bit); | |
1448 | clear_bit(epidx, &unshare_watch_bitmask); | |
1449 | clear_bit(epidx, | |
1450 | &hw->hw_info.buffer_unshare_reserve_bit); | |
1451 | } | |
1452 | ||
1453 | msleep(100); | |
1454 | wait_time += 100; | |
1455 | } | |
1456 | ||
1457 | if (hw->hw_info.buffer_unshare_reserve_bit) { | |
1458 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
1459 | if (epidx == hw->my_epid) | |
1460 | continue; | |
1461 | ||
1462 | if (test_bit(epidx, | |
1463 | &hw->hw_info.buffer_unshare_reserve_bit)) { | |
1464 | mutex_lock(&hw->hw_info.lock); | |
1465 | ||
1466 | ret = fjes_hw_unregister_buff_addr(hw, epidx); | |
1467 | switch (ret) { | |
1468 | case 0: | |
1469 | break; | |
1470 | case -ENOMSG: | |
1471 | case -EBUSY: | |
1472 | default: | |
1473 | if (!work_pending( | |
1474 | &adapter->force_close_task)) { | |
1475 | adapter->force_reset = true; | |
1476 | schedule_work( | |
1477 | &adapter->force_close_task); | |
1478 | } | |
1479 | break; | |
1480 | } | |
1481 | mutex_unlock(&hw->hw_info.lock); | |
1482 | ||
21b7efbc TI |
1483 | hw->ep_shm_info[epidx].ep_stats |
1484 | .com_unregist_buf_exec += 1; | |
1485 | ||
bd5a2569 | 1486 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1487 | fjes_hw_setup_epbuf( |
1488 | &hw->ep_shm_info[epidx].tx, | |
1489 | netdev->dev_addr, netdev->mtu); | |
bd5a2569 TI |
1490 | spin_unlock_irqrestore(&hw->rx_status_lock, |
1491 | flags); | |
8fc4cadb TI |
1492 | |
1493 | clear_bit(epidx, &hw->txrx_stop_req_bit); | |
1494 | clear_bit(epidx, &unshare_watch_bitmask); | |
1495 | clear_bit(epidx, &hw->hw_info.buffer_unshare_reserve_bit); | |
1496 | } | |
1497 | ||
1498 | if (test_bit(epidx, &unshare_watch_bitmask)) { | |
bd5a2569 | 1499 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1500 | hw->ep_shm_info[epidx].tx.info->v1i.rx_status &= |
1501 | ~FJES_RX_STOP_REQ_DONE; | |
bd5a2569 TI |
1502 | spin_unlock_irqrestore(&hw->rx_status_lock, |
1503 | flags); | |
8fc4cadb TI |
1504 | } |
1505 | } | |
1506 | } | |
1507 | } | |
1508 | ||
ac23d3ca YI |
1509 | static acpi_status |
1510 | acpi_find_extended_socket_device(acpi_handle obj_handle, u32 level, | |
1511 | void *context, void **return_value) | |
1512 | { | |
1513 | struct acpi_device *device; | |
1514 | bool *found = context; | |
1515 | int result; | |
1516 | ||
1517 | result = acpi_bus_get_device(obj_handle, &device); | |
1518 | if (result) | |
1519 | return AE_OK; | |
1520 | ||
1521 | if (strcmp(acpi_device_hid(device), ACPI_MOTHERBOARD_RESOURCE_HID)) | |
1522 | return AE_OK; | |
1523 | ||
1524 | if (!is_extended_socket_device(device)) | |
1525 | return AE_OK; | |
1526 | ||
2b396d30 YI |
1527 | if (acpi_check_extended_socket_status(device)) |
1528 | return AE_OK; | |
1529 | ||
ac23d3ca YI |
1530 | *found = true; |
1531 | return AE_CTRL_TERMINATE; | |
1532 | } | |
1533 | ||
658d439b TI |
1534 | /* fjes_init_module - Driver Registration Routine */ |
1535 | static int __init fjes_init_module(void) | |
1536 | { | |
ac23d3ca | 1537 | bool found = false; |
658d439b TI |
1538 | int result; |
1539 | ||
ac23d3ca YI |
1540 | acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, |
1541 | acpi_find_extended_socket_device, NULL, &found, | |
1542 | NULL); | |
1543 | ||
1544 | if (!found) | |
1545 | return -ENODEV; | |
1546 | ||
658d439b TI |
1547 | pr_info("%s - version %s - %s\n", |
1548 | fjes_driver_string, fjes_driver_version, fjes_copyright); | |
1549 | ||
c753119e TI |
1550 | fjes_dbg_init(); |
1551 | ||
658d439b | 1552 | result = platform_driver_register(&fjes_driver); |
c753119e TI |
1553 | if (result < 0) { |
1554 | fjes_dbg_exit(); | |
658d439b | 1555 | return result; |
c753119e | 1556 | } |
658d439b TI |
1557 | |
1558 | result = acpi_bus_register_driver(&fjes_acpi_driver); | |
1559 | if (result < 0) | |
1560 | goto fail_acpi_driver; | |
1561 | ||
1562 | return 0; | |
1563 | ||
1564 | fail_acpi_driver: | |
1565 | platform_driver_unregister(&fjes_driver); | |
c753119e | 1566 | fjes_dbg_exit(); |
658d439b TI |
1567 | return result; |
1568 | } | |
1569 | ||
1570 | module_init(fjes_init_module); | |
1571 | ||
1572 | /* fjes_exit_module - Driver Exit Cleanup Routine */ | |
1573 | static void __exit fjes_exit_module(void) | |
1574 | { | |
1575 | acpi_bus_unregister_driver(&fjes_acpi_driver); | |
1576 | platform_driver_unregister(&fjes_driver); | |
c753119e | 1577 | fjes_dbg_exit(); |
658d439b TI |
1578 | } |
1579 | ||
1580 | module_exit(fjes_exit_module); |