Commit | Line | Data |
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dcc4086d | 1 | // SPDX-License-Identifier: GPL-2.0-only |
658d439b TI |
2 | /* |
3 | * FUJITSU Extended Socket Network Device driver | |
4 | * Copyright (c) 2015 FUJITSU LIMITED | |
658d439b TI |
5 | */ |
6 | ||
7 | #include <linux/module.h> | |
8 | #include <linux/types.h> | |
9 | #include <linux/nls.h> | |
10 | #include <linux/platform_device.h> | |
2fcbca68 | 11 | #include <linux/netdevice.h> |
e5d486dc | 12 | #include <linux/interrupt.h> |
658d439b TI |
13 | |
14 | #include "fjes.h" | |
82f6aea8 | 15 | #include "fjes_trace.h" |
658d439b TI |
16 | |
17 | #define MAJ 1 | |
8f87d775 | 18 | #define MIN 2 |
658d439b TI |
19 | #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) |
20 | #define DRV_NAME "fjes" | |
21 | char fjes_driver_name[] = DRV_NAME; | |
22 | char fjes_driver_version[] = DRV_VERSION; | |
23 | static const char fjes_driver_string[] = | |
24 | "FUJITSU Extended Socket Network Device Driver"; | |
25 | static const char fjes_copyright[] = | |
26 | "Copyright (c) 2015 FUJITSU LIMITED"; | |
27 | ||
28 | MODULE_AUTHOR("Taku Izumi <izumi.taku@jp.fujitsu.com>"); | |
29 | MODULE_DESCRIPTION("FUJITSU Extended Socket Network Device Driver"); | |
30 | MODULE_LICENSE("GPL"); | |
31 | MODULE_VERSION(DRV_VERSION); | |
32 | ||
ac23d3ca YI |
33 | #define ACPI_MOTHERBOARD_RESOURCE_HID "PNP0C02" |
34 | ||
e5d486dc TI |
35 | static int fjes_request_irq(struct fjes_adapter *); |
36 | static void fjes_free_irq(struct fjes_adapter *); | |
37 | ||
38 | static int fjes_open(struct net_device *); | |
39 | static int fjes_close(struct net_device *); | |
40 | static int fjes_setup_resources(struct fjes_adapter *); | |
41 | static void fjes_free_resources(struct fjes_adapter *); | |
9acf51cb | 42 | static netdev_tx_t fjes_xmit_frame(struct sk_buff *, struct net_device *); |
b772b9dc | 43 | static void fjes_raise_intr_rxdata_task(struct work_struct *); |
ac63b947 | 44 | static void fjes_tx_stall_task(struct work_struct *); |
ff5b4210 | 45 | static void fjes_force_close_task(struct work_struct *); |
e5d486dc | 46 | static irqreturn_t fjes_intr(int, void*); |
bc1f4470 | 47 | static void fjes_get_stats64(struct net_device *, struct rtnl_link_stats64 *); |
b9e23a67 | 48 | static int fjes_change_mtu(struct net_device *, int); |
3e3fedda TI |
49 | static int fjes_vlan_rx_add_vid(struct net_device *, __be16 proto, u16); |
50 | static int fjes_vlan_rx_kill_vid(struct net_device *, __be16 proto, u16); | |
0290bd29 | 51 | static void fjes_tx_retry(struct net_device *, unsigned int txqueue); |
e5d486dc | 52 | |
658d439b TI |
53 | static int fjes_acpi_add(struct acpi_device *); |
54 | static int fjes_acpi_remove(struct acpi_device *); | |
55 | static acpi_status fjes_get_acpi_resource(struct acpi_resource *, void*); | |
56 | ||
57 | static int fjes_probe(struct platform_device *); | |
58 | static int fjes_remove(struct platform_device *); | |
59 | ||
2fcbca68 TI |
60 | static int fjes_sw_init(struct fjes_adapter *); |
61 | static void fjes_netdev_setup(struct net_device *); | |
8edb62a8 | 62 | static void fjes_irq_watch_task(struct work_struct *); |
8fc4cadb | 63 | static void fjes_watch_unshare_task(struct work_struct *); |
26585930 TI |
64 | static void fjes_rx_irq(struct fjes_adapter *, int); |
65 | static int fjes_poll(struct napi_struct *, int); | |
66 | ||
658d439b | 67 | static const struct acpi_device_id fjes_acpi_ids[] = { |
ac23d3ca | 68 | {ACPI_MOTHERBOARD_RESOURCE_HID, 0}, |
658d439b TI |
69 | {"", 0}, |
70 | }; | |
71 | MODULE_DEVICE_TABLE(acpi, fjes_acpi_ids); | |
72 | ||
73 | static struct acpi_driver fjes_acpi_driver = { | |
74 | .name = DRV_NAME, | |
75 | .class = DRV_NAME, | |
76 | .owner = THIS_MODULE, | |
77 | .ids = fjes_acpi_ids, | |
78 | .ops = { | |
79 | .add = fjes_acpi_add, | |
80 | .remove = fjes_acpi_remove, | |
81 | }, | |
82 | }; | |
83 | ||
84 | static struct platform_driver fjes_driver = { | |
85 | .driver = { | |
86 | .name = DRV_NAME, | |
658d439b TI |
87 | }, |
88 | .probe = fjes_probe, | |
89 | .remove = fjes_remove, | |
90 | }; | |
91 | ||
92 | static struct resource fjes_resource[] = { | |
93 | { | |
94 | .flags = IORESOURCE_MEM, | |
95 | .start = 0, | |
96 | .end = 0, | |
97 | }, | |
98 | { | |
99 | .flags = IORESOURCE_IRQ, | |
100 | .start = 0, | |
101 | .end = 0, | |
102 | }, | |
103 | }; | |
104 | ||
ac23d3ca | 105 | static bool is_extended_socket_device(struct acpi_device *device) |
658d439b TI |
106 | { |
107 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL}; | |
108 | char str_buf[sizeof(FJES_ACPI_SYMBOL) + 1]; | |
658d439b TI |
109 | union acpi_object *str; |
110 | acpi_status status; | |
111 | int result; | |
112 | ||
113 | status = acpi_evaluate_object(device->handle, "_STR", NULL, &buffer); | |
114 | if (ACPI_FAILURE(status)) | |
ac23d3ca | 115 | return false; |
658d439b TI |
116 | |
117 | str = buffer.pointer; | |
118 | result = utf16s_to_utf8s((wchar_t *)str->string.pointer, | |
119 | str->string.length, UTF16_LITTLE_ENDIAN, | |
120 | str_buf, sizeof(str_buf) - 1); | |
121 | str_buf[result] = 0; | |
122 | ||
123 | if (strncmp(FJES_ACPI_SYMBOL, str_buf, strlen(FJES_ACPI_SYMBOL)) != 0) { | |
124 | kfree(buffer.pointer); | |
ac23d3ca | 125 | return false; |
658d439b TI |
126 | } |
127 | kfree(buffer.pointer); | |
128 | ||
ac23d3ca YI |
129 | return true; |
130 | } | |
131 | ||
2b396d30 YI |
132 | static int acpi_check_extended_socket_status(struct acpi_device *device) |
133 | { | |
134 | unsigned long long sta; | |
135 | acpi_status status; | |
136 | ||
137 | status = acpi_evaluate_integer(device->handle, "_STA", NULL, &sta); | |
138 | if (ACPI_FAILURE(status)) | |
139 | return -ENODEV; | |
140 | ||
141 | if (!((sta & ACPI_STA_DEVICE_PRESENT) && | |
142 | (sta & ACPI_STA_DEVICE_ENABLED) && | |
143 | (sta & ACPI_STA_DEVICE_UI) && | |
144 | (sta & ACPI_STA_DEVICE_FUNCTIONING))) | |
145 | return -ENODEV; | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
ac23d3ca YI |
150 | static int fjes_acpi_add(struct acpi_device *device) |
151 | { | |
152 | struct platform_device *plat_dev; | |
153 | acpi_status status; | |
154 | ||
155 | if (!is_extended_socket_device(device)) | |
156 | return -ENODEV; | |
157 | ||
2b396d30 YI |
158 | if (acpi_check_extended_socket_status(device)) |
159 | return -ENODEV; | |
160 | ||
658d439b TI |
161 | status = acpi_walk_resources(device->handle, METHOD_NAME__CRS, |
162 | fjes_get_acpi_resource, fjes_resource); | |
163 | if (ACPI_FAILURE(status)) | |
164 | return -ENODEV; | |
165 | ||
166 | /* create platform_device */ | |
167 | plat_dev = platform_device_register_simple(DRV_NAME, 0, fjes_resource, | |
168 | ARRAY_SIZE(fjes_resource)); | |
a288f105 CY |
169 | if (IS_ERR(plat_dev)) |
170 | return PTR_ERR(plat_dev); | |
171 | ||
658d439b TI |
172 | device->driver_data = plat_dev; |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
177 | static int fjes_acpi_remove(struct acpi_device *device) | |
178 | { | |
179 | struct platform_device *plat_dev; | |
180 | ||
181 | plat_dev = (struct platform_device *)acpi_driver_data(device); | |
182 | platform_device_unregister(plat_dev); | |
183 | ||
184 | return 0; | |
185 | } | |
186 | ||
187 | static acpi_status | |
188 | fjes_get_acpi_resource(struct acpi_resource *acpi_res, void *data) | |
189 | { | |
190 | struct acpi_resource_address32 *addr; | |
191 | struct acpi_resource_irq *irq; | |
192 | struct resource *res = data; | |
193 | ||
194 | switch (acpi_res->type) { | |
195 | case ACPI_RESOURCE_TYPE_ADDRESS32: | |
196 | addr = &acpi_res->data.address32; | |
197 | res[0].start = addr->address.minimum; | |
198 | res[0].end = addr->address.minimum + | |
199 | addr->address.address_length - 1; | |
200 | break; | |
201 | ||
202 | case ACPI_RESOURCE_TYPE_IRQ: | |
203 | irq = &acpi_res->data.irq; | |
204 | if (irq->interrupt_count != 1) | |
205 | return AE_ERROR; | |
206 | res[1].start = irq->interrupts[0]; | |
207 | res[1].end = irq->interrupts[0]; | |
208 | break; | |
209 | ||
210 | default: | |
211 | break; | |
212 | } | |
213 | ||
214 | return AE_OK; | |
215 | } | |
216 | ||
e5d486dc TI |
217 | static int fjes_request_irq(struct fjes_adapter *adapter) |
218 | { | |
219 | struct net_device *netdev = adapter->netdev; | |
220 | int result = -1; | |
221 | ||
8edb62a8 TI |
222 | adapter->interrupt_watch_enable = true; |
223 | if (!delayed_work_pending(&adapter->interrupt_watch_task)) { | |
224 | queue_delayed_work(adapter->control_wq, | |
225 | &adapter->interrupt_watch_task, | |
226 | FJES_IRQ_WATCH_DELAY); | |
227 | } | |
228 | ||
e5d486dc TI |
229 | if (!adapter->irq_registered) { |
230 | result = request_irq(adapter->hw.hw_res.irq, fjes_intr, | |
231 | IRQF_SHARED, netdev->name, adapter); | |
232 | if (result) | |
233 | adapter->irq_registered = false; | |
234 | else | |
235 | adapter->irq_registered = true; | |
236 | } | |
237 | ||
238 | return result; | |
239 | } | |
240 | ||
241 | static void fjes_free_irq(struct fjes_adapter *adapter) | |
242 | { | |
243 | struct fjes_hw *hw = &adapter->hw; | |
244 | ||
8edb62a8 TI |
245 | adapter->interrupt_watch_enable = false; |
246 | cancel_delayed_work_sync(&adapter->interrupt_watch_task); | |
247 | ||
e5d486dc TI |
248 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_ALL, true); |
249 | ||
250 | if (adapter->irq_registered) { | |
251 | free_irq(adapter->hw.hw_res.irq, adapter); | |
252 | adapter->irq_registered = false; | |
253 | } | |
254 | } | |
255 | ||
2fcbca68 | 256 | static const struct net_device_ops fjes_netdev_ops = { |
e5d486dc TI |
257 | .ndo_open = fjes_open, |
258 | .ndo_stop = fjes_close, | |
9acf51cb | 259 | .ndo_start_xmit = fjes_xmit_frame, |
879bc9a3 | 260 | .ndo_get_stats64 = fjes_get_stats64, |
b9e23a67 | 261 | .ndo_change_mtu = fjes_change_mtu, |
4393e767 | 262 | .ndo_tx_timeout = fjes_tx_retry, |
3e3fedda TI |
263 | .ndo_vlan_rx_add_vid = fjes_vlan_rx_add_vid, |
264 | .ndo_vlan_rx_kill_vid = fjes_vlan_rx_kill_vid, | |
2fcbca68 TI |
265 | }; |
266 | ||
e5d486dc TI |
267 | /* fjes_open - Called when a network interface is made active */ |
268 | static int fjes_open(struct net_device *netdev) | |
269 | { | |
270 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
271 | struct fjes_hw *hw = &adapter->hw; | |
272 | int result; | |
273 | ||
274 | if (adapter->open_guard) | |
275 | return -ENXIO; | |
276 | ||
277 | result = fjes_setup_resources(adapter); | |
278 | if (result) | |
279 | goto err_setup_res; | |
280 | ||
281 | hw->txrx_stop_req_bit = 0; | |
282 | hw->epstop_req_bit = 0; | |
283 | ||
26585930 TI |
284 | napi_enable(&adapter->napi); |
285 | ||
e5d486dc TI |
286 | fjes_hw_capture_interrupt_status(hw); |
287 | ||
288 | result = fjes_request_irq(adapter); | |
289 | if (result) | |
290 | goto err_req_irq; | |
291 | ||
292 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_ALL, false); | |
293 | ||
294 | netif_tx_start_all_queues(netdev); | |
295 | netif_carrier_on(netdev); | |
296 | ||
297 | return 0; | |
298 | ||
299 | err_req_irq: | |
300 | fjes_free_irq(adapter); | |
26585930 | 301 | napi_disable(&adapter->napi); |
e5d486dc TI |
302 | |
303 | err_setup_res: | |
304 | fjes_free_resources(adapter); | |
305 | return result; | |
306 | } | |
307 | ||
308 | /* fjes_close - Disables a network interface */ | |
309 | static int fjes_close(struct net_device *netdev) | |
310 | { | |
311 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
312 | struct fjes_hw *hw = &adapter->hw; | |
bd5a2569 | 313 | unsigned long flags; |
e5d486dc TI |
314 | int epidx; |
315 | ||
316 | netif_tx_stop_all_queues(netdev); | |
317 | netif_carrier_off(netdev); | |
318 | ||
319 | fjes_hw_raise_epstop(hw); | |
320 | ||
26585930 TI |
321 | napi_disable(&adapter->napi); |
322 | ||
bd5a2569 | 323 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
e5d486dc TI |
324 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
325 | if (epidx == hw->my_epid) | |
326 | continue; | |
327 | ||
bd5a2569 TI |
328 | if (fjes_hw_get_partner_ep_status(hw, epidx) == |
329 | EP_PARTNER_SHARED) | |
330 | adapter->hw.ep_shm_info[epidx] | |
331 | .tx.info->v1i.rx_status &= | |
332 | ~FJES_RX_POLL_WORK; | |
e5d486dc | 333 | } |
bd5a2569 | 334 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
e5d486dc TI |
335 | |
336 | fjes_free_irq(adapter); | |
337 | ||
8edb62a8 | 338 | cancel_delayed_work_sync(&adapter->interrupt_watch_task); |
8fc4cadb TI |
339 | cancel_work_sync(&adapter->unshare_watch_task); |
340 | adapter->unshare_watch_bitmask = 0; | |
b772b9dc | 341 | cancel_work_sync(&adapter->raise_intr_rxdata_task); |
ac63b947 | 342 | cancel_work_sync(&adapter->tx_stall_task); |
b772b9dc | 343 | |
785f28e0 | 344 | cancel_work_sync(&hw->update_zone_task); |
b5a9152d | 345 | cancel_work_sync(&hw->epstop_task); |
785f28e0 | 346 | |
e5d486dc TI |
347 | fjes_hw_wait_epstop(hw); |
348 | ||
349 | fjes_free_resources(adapter); | |
350 | ||
351 | return 0; | |
352 | } | |
353 | ||
354 | static int fjes_setup_resources(struct fjes_adapter *adapter) | |
355 | { | |
356 | struct net_device *netdev = adapter->netdev; | |
357 | struct ep_share_mem_info *buf_pair; | |
358 | struct fjes_hw *hw = &adapter->hw; | |
bd5a2569 | 359 | unsigned long flags; |
e5d486dc TI |
360 | int result; |
361 | int epidx; | |
362 | ||
363 | mutex_lock(&hw->hw_info.lock); | |
364 | result = fjes_hw_request_info(hw); | |
365 | switch (result) { | |
366 | case 0: | |
367 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
368 | hw->ep_shm_info[epidx].es_status = | |
369 | hw->hw_info.res_buf->info.info[epidx].es_status; | |
370 | hw->ep_shm_info[epidx].zone = | |
371 | hw->hw_info.res_buf->info.info[epidx].zone; | |
372 | } | |
373 | break; | |
374 | default: | |
375 | case -ENOMSG: | |
376 | case -EBUSY: | |
377 | adapter->force_reset = true; | |
378 | ||
379 | mutex_unlock(&hw->hw_info.lock); | |
380 | return result; | |
381 | } | |
382 | mutex_unlock(&hw->hw_info.lock); | |
383 | ||
384 | for (epidx = 0; epidx < (hw->max_epid); epidx++) { | |
385 | if ((epidx != hw->my_epid) && | |
386 | (hw->ep_shm_info[epidx].es_status == | |
387 | FJES_ZONING_STATUS_ENABLE)) { | |
388 | fjes_hw_raise_interrupt(hw, epidx, | |
389 | REG_ICTL_MASK_INFO_UPDATE); | |
21b7efbc TI |
390 | hw->ep_shm_info[epidx].ep_stats |
391 | .send_intr_zoneupdate += 1; | |
e5d486dc TI |
392 | } |
393 | } | |
394 | ||
395 | msleep(FJES_OPEN_ZONE_UPDATE_WAIT * hw->max_epid); | |
396 | ||
397 | for (epidx = 0; epidx < (hw->max_epid); epidx++) { | |
398 | if (epidx == hw->my_epid) | |
399 | continue; | |
400 | ||
401 | buf_pair = &hw->ep_shm_info[epidx]; | |
402 | ||
bd5a2569 | 403 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
e5d486dc TI |
404 | fjes_hw_setup_epbuf(&buf_pair->tx, netdev->dev_addr, |
405 | netdev->mtu); | |
bd5a2569 | 406 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
e5d486dc TI |
407 | |
408 | if (fjes_hw_epid_is_same_zone(hw, epidx)) { | |
409 | mutex_lock(&hw->hw_info.lock); | |
410 | result = | |
411 | fjes_hw_register_buff_addr(hw, epidx, buf_pair); | |
412 | mutex_unlock(&hw->hw_info.lock); | |
413 | ||
414 | switch (result) { | |
415 | case 0: | |
416 | break; | |
417 | case -ENOMSG: | |
418 | case -EBUSY: | |
419 | default: | |
420 | adapter->force_reset = true; | |
421 | return result; | |
422 | } | |
21b7efbc TI |
423 | |
424 | hw->ep_shm_info[epidx].ep_stats | |
425 | .com_regist_buf_exec += 1; | |
e5d486dc TI |
426 | } |
427 | } | |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
432 | static void fjes_free_resources(struct fjes_adapter *adapter) | |
433 | { | |
434 | struct net_device *netdev = adapter->netdev; | |
435 | struct fjes_device_command_param param; | |
436 | struct ep_share_mem_info *buf_pair; | |
437 | struct fjes_hw *hw = &adapter->hw; | |
438 | bool reset_flag = false; | |
bd5a2569 | 439 | unsigned long flags; |
e5d486dc TI |
440 | int result; |
441 | int epidx; | |
442 | ||
443 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
444 | if (epidx == hw->my_epid) | |
445 | continue; | |
446 | ||
447 | mutex_lock(&hw->hw_info.lock); | |
448 | result = fjes_hw_unregister_buff_addr(hw, epidx); | |
449 | mutex_unlock(&hw->hw_info.lock); | |
450 | ||
21b7efbc TI |
451 | hw->ep_shm_info[epidx].ep_stats.com_unregist_buf_exec += 1; |
452 | ||
e5d486dc TI |
453 | if (result) |
454 | reset_flag = true; | |
455 | ||
456 | buf_pair = &hw->ep_shm_info[epidx]; | |
457 | ||
bd5a2569 | 458 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
e5d486dc TI |
459 | fjes_hw_setup_epbuf(&buf_pair->tx, |
460 | netdev->dev_addr, netdev->mtu); | |
bd5a2569 | 461 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
e5d486dc TI |
462 | |
463 | clear_bit(epidx, &hw->txrx_stop_req_bit); | |
464 | } | |
465 | ||
466 | if (reset_flag || adapter->force_reset) { | |
467 | result = fjes_hw_reset(hw); | |
468 | ||
469 | adapter->force_reset = false; | |
470 | ||
471 | if (result) | |
472 | adapter->open_guard = true; | |
473 | ||
474 | hw->hw_info.buffer_share_bit = 0; | |
475 | ||
476 | memset((void *)¶m, 0, sizeof(param)); | |
477 | ||
478 | param.req_len = hw->hw_info.req_buf_size; | |
479 | param.req_start = __pa(hw->hw_info.req_buf); | |
480 | param.res_len = hw->hw_info.res_buf_size; | |
481 | param.res_start = __pa(hw->hw_info.res_buf); | |
482 | param.share_start = __pa(hw->hw_info.share->ep_status); | |
483 | ||
484 | fjes_hw_init_command_registers(hw, ¶m); | |
485 | } | |
486 | } | |
487 | ||
ac63b947 TI |
488 | static void fjes_tx_stall_task(struct work_struct *work) |
489 | { | |
490 | struct fjes_adapter *adapter = container_of(work, | |
491 | struct fjes_adapter, tx_stall_task); | |
492 | struct net_device *netdev = adapter->netdev; | |
493 | struct fjes_hw *hw = &adapter->hw; | |
494 | int all_queue_available, sendable; | |
495 | enum ep_partner_status pstatus; | |
496 | int max_epid, my_epid, epid; | |
497 | union ep_buffer_info *info; | |
498 | int i; | |
499 | ||
500 | if (((long)jiffies - | |
4d0e9657 | 501 | dev_trans_start(netdev)) > FJES_TX_TX_STALL_TIMEOUT) { |
ac63b947 TI |
502 | netif_wake_queue(netdev); |
503 | return; | |
504 | } | |
505 | ||
506 | my_epid = hw->my_epid; | |
507 | max_epid = hw->max_epid; | |
508 | ||
509 | for (i = 0; i < 5; i++) { | |
510 | all_queue_available = 1; | |
511 | ||
512 | for (epid = 0; epid < max_epid; epid++) { | |
513 | if (my_epid == epid) | |
514 | continue; | |
515 | ||
516 | pstatus = fjes_hw_get_partner_ep_status(hw, epid); | |
517 | sendable = (pstatus == EP_PARTNER_SHARED); | |
518 | if (!sendable) | |
519 | continue; | |
520 | ||
521 | info = adapter->hw.ep_shm_info[epid].tx.info; | |
522 | ||
16bbec3a TI |
523 | if (!(info->v1i.rx_status & FJES_RX_MTU_CHANGING_DONE)) |
524 | return; | |
525 | ||
ac63b947 TI |
526 | if (EP_RING_FULL(info->v1i.head, info->v1i.tail, |
527 | info->v1i.count_max)) { | |
528 | all_queue_available = 0; | |
529 | break; | |
530 | } | |
531 | } | |
532 | ||
533 | if (all_queue_available) { | |
534 | netif_wake_queue(netdev); | |
535 | return; | |
536 | } | |
537 | } | |
538 | ||
539 | usleep_range(50, 100); | |
540 | ||
541 | queue_work(adapter->txrx_wq, &adapter->tx_stall_task); | |
542 | } | |
543 | ||
ff5b4210 TI |
544 | static void fjes_force_close_task(struct work_struct *work) |
545 | { | |
546 | struct fjes_adapter *adapter = container_of(work, | |
547 | struct fjes_adapter, force_close_task); | |
548 | struct net_device *netdev = adapter->netdev; | |
549 | ||
550 | rtnl_lock(); | |
551 | dev_close(netdev); | |
552 | rtnl_unlock(); | |
553 | } | |
554 | ||
b772b9dc TI |
555 | static void fjes_raise_intr_rxdata_task(struct work_struct *work) |
556 | { | |
557 | struct fjes_adapter *adapter = container_of(work, | |
558 | struct fjes_adapter, raise_intr_rxdata_task); | |
559 | struct fjes_hw *hw = &adapter->hw; | |
560 | enum ep_partner_status pstatus; | |
561 | int max_epid, my_epid, epid; | |
562 | ||
563 | my_epid = hw->my_epid; | |
564 | max_epid = hw->max_epid; | |
565 | ||
566 | for (epid = 0; epid < max_epid; epid++) | |
567 | hw->ep_shm_info[epid].tx_status_work = 0; | |
568 | ||
569 | for (epid = 0; epid < max_epid; epid++) { | |
570 | if (epid == my_epid) | |
571 | continue; | |
572 | ||
573 | pstatus = fjes_hw_get_partner_ep_status(hw, epid); | |
574 | if (pstatus == EP_PARTNER_SHARED) { | |
575 | hw->ep_shm_info[epid].tx_status_work = | |
576 | hw->ep_shm_info[epid].tx.info->v1i.tx_status; | |
577 | ||
578 | if (hw->ep_shm_info[epid].tx_status_work == | |
579 | FJES_TX_DELAY_SEND_PENDING) { | |
580 | hw->ep_shm_info[epid].tx.info->v1i.tx_status = | |
581 | FJES_TX_DELAY_SEND_NONE; | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
586 | for (epid = 0; epid < max_epid; epid++) { | |
587 | if (epid == my_epid) | |
588 | continue; | |
589 | ||
590 | pstatus = fjes_hw_get_partner_ep_status(hw, epid); | |
591 | if ((hw->ep_shm_info[epid].tx_status_work == | |
592 | FJES_TX_DELAY_SEND_PENDING) && | |
593 | (pstatus == EP_PARTNER_SHARED) && | |
19a0a7fd TI |
594 | !(hw->ep_shm_info[epid].rx.info->v1i.rx_status & |
595 | FJES_RX_POLL_WORK)) { | |
b772b9dc TI |
596 | fjes_hw_raise_interrupt(hw, epid, |
597 | REG_ICTL_MASK_RX_DATA); | |
21b7efbc | 598 | hw->ep_shm_info[epid].ep_stats.send_intr_rx += 1; |
b772b9dc TI |
599 | } |
600 | } | |
601 | ||
602 | usleep_range(500, 1000); | |
603 | } | |
604 | ||
9acf51cb TI |
605 | static int fjes_tx_send(struct fjes_adapter *adapter, int dest, |
606 | void *data, size_t len) | |
607 | { | |
608 | int retval; | |
609 | ||
610 | retval = fjes_hw_epbuf_tx_pkt_send(&adapter->hw.ep_shm_info[dest].tx, | |
611 | data, len); | |
612 | if (retval) | |
613 | return retval; | |
614 | ||
615 | adapter->hw.ep_shm_info[dest].tx.info->v1i.tx_status = | |
616 | FJES_TX_DELAY_SEND_PENDING; | |
b772b9dc TI |
617 | if (!work_pending(&adapter->raise_intr_rxdata_task)) |
618 | queue_work(adapter->txrx_wq, | |
619 | &adapter->raise_intr_rxdata_task); | |
9acf51cb TI |
620 | |
621 | retval = 0; | |
622 | return retval; | |
623 | } | |
624 | ||
625 | static netdev_tx_t | |
626 | fjes_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
627 | { | |
628 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
629 | struct fjes_hw *hw = &adapter->hw; | |
630 | ||
631 | int max_epid, my_epid, dest_epid; | |
632 | enum ep_partner_status pstatus; | |
633 | struct netdev_queue *cur_queue; | |
634 | char shortpkt[VLAN_ETH_HLEN]; | |
635 | bool is_multi, vlan; | |
636 | struct ethhdr *eth; | |
637 | u16 queue_no = 0; | |
638 | u16 vlan_id = 0; | |
639 | netdev_tx_t ret; | |
640 | char *data; | |
641 | int len; | |
642 | ||
643 | ret = NETDEV_TX_OK; | |
644 | is_multi = false; | |
645 | cur_queue = netdev_get_tx_queue(netdev, queue_no); | |
646 | ||
647 | eth = (struct ethhdr *)skb->data; | |
648 | my_epid = hw->my_epid; | |
649 | ||
650 | vlan = (vlan_get_tag(skb, &vlan_id) == 0) ? true : false; | |
651 | ||
652 | data = skb->data; | |
653 | len = skb->len; | |
654 | ||
655 | if (is_multicast_ether_addr(eth->h_dest)) { | |
656 | dest_epid = 0; | |
657 | max_epid = hw->max_epid; | |
658 | is_multi = true; | |
659 | } else if (is_local_ether_addr(eth->h_dest)) { | |
660 | dest_epid = eth->h_dest[ETH_ALEN - 1]; | |
661 | max_epid = dest_epid + 1; | |
662 | ||
663 | if ((eth->h_dest[0] == 0x02) && | |
664 | (0x00 == (eth->h_dest[1] | eth->h_dest[2] | | |
665 | eth->h_dest[3] | eth->h_dest[4])) && | |
666 | (dest_epid < hw->max_epid)) { | |
667 | ; | |
668 | } else { | |
669 | dest_epid = 0; | |
670 | max_epid = 0; | |
671 | ret = NETDEV_TX_OK; | |
672 | ||
673 | adapter->stats64.tx_packets += 1; | |
674 | hw->ep_shm_info[my_epid].net_stats.tx_packets += 1; | |
675 | adapter->stats64.tx_bytes += len; | |
676 | hw->ep_shm_info[my_epid].net_stats.tx_bytes += len; | |
677 | } | |
678 | } else { | |
679 | dest_epid = 0; | |
680 | max_epid = 0; | |
681 | ret = NETDEV_TX_OK; | |
682 | ||
683 | adapter->stats64.tx_packets += 1; | |
684 | hw->ep_shm_info[my_epid].net_stats.tx_packets += 1; | |
685 | adapter->stats64.tx_bytes += len; | |
686 | hw->ep_shm_info[my_epid].net_stats.tx_bytes += len; | |
687 | } | |
688 | ||
689 | for (; dest_epid < max_epid; dest_epid++) { | |
690 | if (my_epid == dest_epid) | |
691 | continue; | |
692 | ||
693 | pstatus = fjes_hw_get_partner_ep_status(hw, dest_epid); | |
694 | if (pstatus != EP_PARTNER_SHARED) { | |
21b7efbc TI |
695 | if (!is_multi) |
696 | hw->ep_shm_info[dest_epid].ep_stats | |
697 | .tx_dropped_not_shared += 1; | |
9acf51cb TI |
698 | ret = NETDEV_TX_OK; |
699 | } else if (!fjes_hw_check_epbuf_version( | |
700 | &adapter->hw.ep_shm_info[dest_epid].rx, 0)) { | |
701 | /* version is NOT 0 */ | |
702 | adapter->stats64.tx_carrier_errors += 1; | |
3c3bd4a9 | 703 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb | 704 | .tx_carrier_errors += 1; |
21b7efbc TI |
705 | hw->ep_shm_info[dest_epid].ep_stats |
706 | .tx_dropped_ver_mismatch += 1; | |
9acf51cb TI |
707 | |
708 | ret = NETDEV_TX_OK; | |
709 | } else if (!fjes_hw_check_mtu( | |
710 | &adapter->hw.ep_shm_info[dest_epid].rx, | |
711 | netdev->mtu)) { | |
712 | adapter->stats64.tx_dropped += 1; | |
3c3bd4a9 | 713 | hw->ep_shm_info[dest_epid].net_stats.tx_dropped += 1; |
9acf51cb | 714 | adapter->stats64.tx_errors += 1; |
3c3bd4a9 | 715 | hw->ep_shm_info[dest_epid].net_stats.tx_errors += 1; |
21b7efbc TI |
716 | hw->ep_shm_info[dest_epid].ep_stats |
717 | .tx_dropped_buf_size_mismatch += 1; | |
9acf51cb TI |
718 | |
719 | ret = NETDEV_TX_OK; | |
720 | } else if (vlan && | |
721 | !fjes_hw_check_vlan_id( | |
722 | &adapter->hw.ep_shm_info[dest_epid].rx, | |
723 | vlan_id)) { | |
21b7efbc TI |
724 | hw->ep_shm_info[dest_epid].ep_stats |
725 | .tx_dropped_vlanid_mismatch += 1; | |
9acf51cb TI |
726 | ret = NETDEV_TX_OK; |
727 | } else { | |
728 | if (len < VLAN_ETH_HLEN) { | |
729 | memset(shortpkt, 0, VLAN_ETH_HLEN); | |
730 | memcpy(shortpkt, skb->data, skb->len); | |
731 | len = VLAN_ETH_HLEN; | |
732 | data = shortpkt; | |
733 | } | |
734 | ||
735 | if (adapter->tx_retry_count == 0) { | |
736 | adapter->tx_start_jiffies = jiffies; | |
737 | adapter->tx_retry_count = 1; | |
738 | } else { | |
739 | adapter->tx_retry_count++; | |
740 | } | |
741 | ||
742 | if (fjes_tx_send(adapter, dest_epid, data, len)) { | |
743 | if (is_multi) { | |
744 | ret = NETDEV_TX_OK; | |
745 | } else if ( | |
746 | ((long)jiffies - | |
747 | (long)adapter->tx_start_jiffies) >= | |
748 | FJES_TX_RETRY_TIMEOUT) { | |
749 | adapter->stats64.tx_fifo_errors += 1; | |
3c3bd4a9 | 750 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
751 | .tx_fifo_errors += 1; |
752 | adapter->stats64.tx_errors += 1; | |
3c3bd4a9 | 753 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
754 | .tx_errors += 1; |
755 | ||
756 | ret = NETDEV_TX_OK; | |
757 | } else { | |
860e9538 | 758 | netif_trans_update(netdev); |
21b7efbc TI |
759 | hw->ep_shm_info[dest_epid].ep_stats |
760 | .tx_buffer_full += 1; | |
9acf51cb TI |
761 | netif_tx_stop_queue(cur_queue); |
762 | ||
ac63b947 TI |
763 | if (!work_pending(&adapter->tx_stall_task)) |
764 | queue_work(adapter->txrx_wq, | |
765 | &adapter->tx_stall_task); | |
766 | ||
9acf51cb TI |
767 | ret = NETDEV_TX_BUSY; |
768 | } | |
769 | } else { | |
770 | if (!is_multi) { | |
771 | adapter->stats64.tx_packets += 1; | |
3c3bd4a9 | 772 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
773 | .tx_packets += 1; |
774 | adapter->stats64.tx_bytes += len; | |
3c3bd4a9 | 775 | hw->ep_shm_info[dest_epid].net_stats |
9acf51cb TI |
776 | .tx_bytes += len; |
777 | } | |
778 | ||
779 | adapter->tx_retry_count = 0; | |
780 | ret = NETDEV_TX_OK; | |
781 | } | |
782 | } | |
783 | } | |
784 | ||
785 | if (ret == NETDEV_TX_OK) { | |
786 | dev_kfree_skb(skb); | |
787 | if (is_multi) { | |
788 | adapter->stats64.tx_packets += 1; | |
789 | hw->ep_shm_info[my_epid].net_stats.tx_packets += 1; | |
790 | adapter->stats64.tx_bytes += 1; | |
791 | hw->ep_shm_info[my_epid].net_stats.tx_bytes += len; | |
792 | } | |
793 | } | |
794 | ||
795 | return ret; | |
796 | } | |
797 | ||
0290bd29 | 798 | static void fjes_tx_retry(struct net_device *netdev, unsigned int txqueue) |
4393e767 TI |
799 | { |
800 | struct netdev_queue *queue = netdev_get_tx_queue(netdev, 0); | |
801 | ||
802 | netif_tx_wake_queue(queue); | |
803 | } | |
804 | ||
bc1f4470 | 805 | static void |
879bc9a3 TI |
806 | fjes_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) |
807 | { | |
808 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
809 | ||
810 | memcpy(stats, &adapter->stats64, sizeof(struct rtnl_link_stats64)); | |
879bc9a3 TI |
811 | } |
812 | ||
b9e23a67 TI |
813 | static int fjes_change_mtu(struct net_device *netdev, int new_mtu) |
814 | { | |
16bbec3a | 815 | struct fjes_adapter *adapter = netdev_priv(netdev); |
b9e23a67 | 816 | bool running = netif_running(netdev); |
16bbec3a | 817 | struct fjes_hw *hw = &adapter->hw; |
bd5a2569 | 818 | unsigned long flags; |
16bbec3a TI |
819 | int ret = -EINVAL; |
820 | int idx, epidx; | |
b9e23a67 TI |
821 | |
822 | for (idx = 0; fjes_support_mtu[idx] != 0; idx++) { | |
823 | if (new_mtu <= fjes_support_mtu[idx]) { | |
824 | new_mtu = fjes_support_mtu[idx]; | |
825 | if (new_mtu == netdev->mtu) | |
826 | return 0; | |
827 | ||
16bbec3a TI |
828 | ret = 0; |
829 | break; | |
830 | } | |
831 | } | |
832 | ||
833 | if (ret) | |
834 | return ret; | |
b9e23a67 | 835 | |
16bbec3a | 836 | if (running) { |
bd5a2569 | 837 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
16bbec3a TI |
838 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
839 | if (epidx == hw->my_epid) | |
840 | continue; | |
841 | hw->ep_shm_info[epidx].tx.info->v1i.rx_status &= | |
842 | ~FJES_RX_MTU_CHANGING_DONE; | |
843 | } | |
bd5a2569 TI |
844 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
845 | ||
16bbec3a TI |
846 | netif_tx_stop_all_queues(netdev); |
847 | netif_carrier_off(netdev); | |
848 | cancel_work_sync(&adapter->tx_stall_task); | |
849 | napi_disable(&adapter->napi); | |
b9e23a67 | 850 | |
16bbec3a | 851 | msleep(1000); |
b9e23a67 | 852 | |
16bbec3a TI |
853 | netif_tx_stop_all_queues(netdev); |
854 | } | |
855 | ||
856 | netdev->mtu = new_mtu; | |
857 | ||
858 | if (running) { | |
859 | for (epidx = 0; epidx < hw->max_epid; epidx++) { | |
860 | if (epidx == hw->my_epid) | |
861 | continue; | |
862 | ||
bd5a2569 | 863 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
16bbec3a TI |
864 | fjes_hw_setup_epbuf(&hw->ep_shm_info[epidx].tx, |
865 | netdev->dev_addr, | |
866 | netdev->mtu); | |
16bbec3a TI |
867 | |
868 | hw->ep_shm_info[epidx].tx.info->v1i.rx_status |= | |
869 | FJES_RX_MTU_CHANGING_DONE; | |
bd5a2569 | 870 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
b9e23a67 | 871 | } |
16bbec3a TI |
872 | |
873 | netif_tx_wake_all_queues(netdev); | |
874 | netif_carrier_on(netdev); | |
875 | napi_enable(&adapter->napi); | |
bd5a2569 | 876 | napi_schedule(&adapter->napi); |
b9e23a67 TI |
877 | } |
878 | ||
16bbec3a | 879 | return ret; |
b9e23a67 TI |
880 | } |
881 | ||
3e3fedda TI |
882 | static int fjes_vlan_rx_add_vid(struct net_device *netdev, |
883 | __be16 proto, u16 vid) | |
884 | { | |
885 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
886 | bool ret = true; | |
887 | int epid; | |
888 | ||
889 | for (epid = 0; epid < adapter->hw.max_epid; epid++) { | |
890 | if (epid == adapter->hw.my_epid) | |
891 | continue; | |
892 | ||
893 | if (!fjes_hw_check_vlan_id( | |
894 | &adapter->hw.ep_shm_info[epid].tx, vid)) | |
895 | ret = fjes_hw_set_vlan_id( | |
896 | &adapter->hw.ep_shm_info[epid].tx, vid); | |
897 | } | |
898 | ||
899 | return ret ? 0 : -ENOSPC; | |
900 | } | |
901 | ||
902 | static int fjes_vlan_rx_kill_vid(struct net_device *netdev, | |
903 | __be16 proto, u16 vid) | |
904 | { | |
905 | struct fjes_adapter *adapter = netdev_priv(netdev); | |
906 | int epid; | |
907 | ||
908 | for (epid = 0; epid < adapter->hw.max_epid; epid++) { | |
909 | if (epid == adapter->hw.my_epid) | |
910 | continue; | |
911 | ||
912 | fjes_hw_del_vlan_id(&adapter->hw.ep_shm_info[epid].tx, vid); | |
913 | } | |
914 | ||
915 | return 0; | |
916 | } | |
917 | ||
cb79eaae TI |
918 | static void fjes_txrx_stop_req_irq(struct fjes_adapter *adapter, |
919 | int src_epid) | |
920 | { | |
921 | struct fjes_hw *hw = &adapter->hw; | |
922 | enum ep_partner_status status; | |
bd5a2569 | 923 | unsigned long flags; |
cb79eaae TI |
924 | |
925 | status = fjes_hw_get_partner_ep_status(hw, src_epid); | |
82f6aea8 | 926 | trace_fjes_txrx_stop_req_irq_pre(hw, src_epid, status); |
cb79eaae TI |
927 | switch (status) { |
928 | case EP_PARTNER_UNSHARE: | |
929 | case EP_PARTNER_COMPLETE: | |
930 | default: | |
931 | break; | |
932 | case EP_PARTNER_WAITING: | |
933 | if (src_epid < hw->my_epid) { | |
bd5a2569 | 934 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
cb79eaae TI |
935 | hw->ep_shm_info[src_epid].tx.info->v1i.rx_status |= |
936 | FJES_RX_STOP_REQ_DONE; | |
bd5a2569 | 937 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
cb79eaae TI |
938 | |
939 | clear_bit(src_epid, &hw->txrx_stop_req_bit); | |
940 | set_bit(src_epid, &adapter->unshare_watch_bitmask); | |
941 | ||
942 | if (!work_pending(&adapter->unshare_watch_task)) | |
943 | queue_work(adapter->control_wq, | |
944 | &adapter->unshare_watch_task); | |
945 | } | |
946 | break; | |
947 | case EP_PARTNER_SHARED: | |
948 | if (hw->ep_shm_info[src_epid].rx.info->v1i.rx_status & | |
949 | FJES_RX_STOP_REQ_REQUEST) { | |
950 | set_bit(src_epid, &hw->epstop_req_bit); | |
951 | if (!work_pending(&hw->epstop_task)) | |
952 | queue_work(adapter->control_wq, | |
953 | &hw->epstop_task); | |
954 | } | |
955 | break; | |
956 | } | |
82f6aea8 | 957 | trace_fjes_txrx_stop_req_irq_post(hw, src_epid); |
cb79eaae TI |
958 | } |
959 | ||
960 | static void fjes_stop_req_irq(struct fjes_adapter *adapter, int src_epid) | |
961 | { | |
962 | struct fjes_hw *hw = &adapter->hw; | |
963 | enum ep_partner_status status; | |
bd5a2569 | 964 | unsigned long flags; |
cb79eaae TI |
965 | |
966 | set_bit(src_epid, &hw->hw_info.buffer_unshare_reserve_bit); | |
967 | ||
968 | status = fjes_hw_get_partner_ep_status(hw, src_epid); | |
82f6aea8 | 969 | trace_fjes_stop_req_irq_pre(hw, src_epid, status); |
cb79eaae TI |
970 | switch (status) { |
971 | case EP_PARTNER_WAITING: | |
bd5a2569 | 972 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
cb79eaae TI |
973 | hw->ep_shm_info[src_epid].tx.info->v1i.rx_status |= |
974 | FJES_RX_STOP_REQ_DONE; | |
bd5a2569 | 975 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
cb79eaae | 976 | clear_bit(src_epid, &hw->txrx_stop_req_bit); |
df561f66 | 977 | fallthrough; |
cb79eaae TI |
978 | case EP_PARTNER_UNSHARE: |
979 | case EP_PARTNER_COMPLETE: | |
980 | default: | |
981 | set_bit(src_epid, &adapter->unshare_watch_bitmask); | |
982 | if (!work_pending(&adapter->unshare_watch_task)) | |
983 | queue_work(adapter->control_wq, | |
984 | &adapter->unshare_watch_task); | |
985 | break; | |
986 | case EP_PARTNER_SHARED: | |
987 | set_bit(src_epid, &hw->epstop_req_bit); | |
988 | ||
989 | if (!work_pending(&hw->epstop_task)) | |
990 | queue_work(adapter->control_wq, &hw->epstop_task); | |
991 | break; | |
992 | } | |
82f6aea8 | 993 | trace_fjes_stop_req_irq_post(hw, src_epid); |
cb79eaae TI |
994 | } |
995 | ||
785f28e0 TI |
996 | static void fjes_update_zone_irq(struct fjes_adapter *adapter, |
997 | int src_epid) | |
998 | { | |
999 | struct fjes_hw *hw = &adapter->hw; | |
1000 | ||
1001 | if (!work_pending(&hw->update_zone_task)) | |
1002 | queue_work(adapter->control_wq, &hw->update_zone_task); | |
1003 | } | |
1004 | ||
e5d486dc TI |
1005 | static irqreturn_t fjes_intr(int irq, void *data) |
1006 | { | |
1007 | struct fjes_adapter *adapter = data; | |
1008 | struct fjes_hw *hw = &adapter->hw; | |
1009 | irqreturn_t ret; | |
1010 | u32 icr; | |
1011 | ||
1012 | icr = fjes_hw_capture_interrupt_status(hw); | |
1013 | ||
26585930 | 1014 | if (icr & REG_IS_MASK_IS_ASSERT) { |
21b7efbc | 1015 | if (icr & REG_ICTL_MASK_RX_DATA) { |
26585930 | 1016 | fjes_rx_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1017 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1018 | .recv_intr_rx += 1; | |
1019 | } | |
26585930 | 1020 | |
21b7efbc | 1021 | if (icr & REG_ICTL_MASK_DEV_STOP_REQ) { |
cb79eaae | 1022 | fjes_stop_req_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1023 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1024 | .recv_intr_stop += 1; | |
1025 | } | |
cb79eaae | 1026 | |
21b7efbc | 1027 | if (icr & REG_ICTL_MASK_TXRX_STOP_REQ) { |
cb79eaae | 1028 | fjes_txrx_stop_req_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1029 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1030 | .recv_intr_unshare += 1; | |
1031 | } | |
cb79eaae TI |
1032 | |
1033 | if (icr & REG_ICTL_MASK_TXRX_STOP_DONE) | |
1034 | fjes_hw_set_irqmask(hw, | |
1035 | REG_ICTL_MASK_TXRX_STOP_DONE, true); | |
1036 | ||
21b7efbc | 1037 | if (icr & REG_ICTL_MASK_INFO_UPDATE) { |
785f28e0 | 1038 | fjes_update_zone_irq(adapter, icr & REG_IS_MASK_EPID); |
21b7efbc TI |
1039 | hw->ep_shm_info[icr & REG_IS_MASK_EPID].ep_stats |
1040 | .recv_intr_zoneupdate += 1; | |
1041 | } | |
785f28e0 | 1042 | |
e5d486dc | 1043 | ret = IRQ_HANDLED; |
26585930 | 1044 | } else { |
e5d486dc | 1045 | ret = IRQ_NONE; |
26585930 | 1046 | } |
e5d486dc TI |
1047 | |
1048 | return ret; | |
1049 | } | |
1050 | ||
26585930 TI |
1051 | static int fjes_rxframe_search_exist(struct fjes_adapter *adapter, |
1052 | int start_epid) | |
1053 | { | |
1054 | struct fjes_hw *hw = &adapter->hw; | |
1055 | enum ep_partner_status pstatus; | |
1056 | int max_epid, cur_epid; | |
1057 | int i; | |
1058 | ||
1059 | max_epid = hw->max_epid; | |
1060 | start_epid = (start_epid + 1 + max_epid) % max_epid; | |
1061 | ||
1062 | for (i = 0; i < max_epid; i++) { | |
1063 | cur_epid = (start_epid + i) % max_epid; | |
1064 | if (cur_epid == hw->my_epid) | |
1065 | continue; | |
1066 | ||
1067 | pstatus = fjes_hw_get_partner_ep_status(hw, cur_epid); | |
1068 | if (pstatus == EP_PARTNER_SHARED) { | |
1069 | if (!fjes_hw_epbuf_rx_is_empty( | |
1070 | &hw->ep_shm_info[cur_epid].rx)) | |
1071 | return cur_epid; | |
1072 | } | |
1073 | } | |
1074 | return -1; | |
1075 | } | |
1076 | ||
1077 | static void *fjes_rxframe_get(struct fjes_adapter *adapter, size_t *psize, | |
1078 | int *cur_epid) | |
1079 | { | |
1080 | void *frame; | |
1081 | ||
1082 | *cur_epid = fjes_rxframe_search_exist(adapter, *cur_epid); | |
1083 | if (*cur_epid < 0) | |
1084 | return NULL; | |
1085 | ||
1086 | frame = | |
1087 | fjes_hw_epbuf_rx_curpkt_get_addr( | |
1088 | &adapter->hw.ep_shm_info[*cur_epid].rx, psize); | |
1089 | ||
1090 | return frame; | |
1091 | } | |
1092 | ||
1093 | static void fjes_rxframe_release(struct fjes_adapter *adapter, int cur_epid) | |
1094 | { | |
1095 | fjes_hw_epbuf_rx_curpkt_drop(&adapter->hw.ep_shm_info[cur_epid].rx); | |
1096 | } | |
1097 | ||
1098 | static void fjes_rx_irq(struct fjes_adapter *adapter, int src_epid) | |
1099 | { | |
1100 | struct fjes_hw *hw = &adapter->hw; | |
1101 | ||
1102 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_RX_DATA, true); | |
1103 | ||
1104 | adapter->unset_rx_last = true; | |
1105 | napi_schedule(&adapter->napi); | |
1106 | } | |
1107 | ||
1108 | static int fjes_poll(struct napi_struct *napi, int budget) | |
1109 | { | |
1110 | struct fjes_adapter *adapter = | |
1111 | container_of(napi, struct fjes_adapter, napi); | |
1112 | struct net_device *netdev = napi->dev; | |
1113 | struct fjes_hw *hw = &adapter->hw; | |
1114 | struct sk_buff *skb; | |
1115 | int work_done = 0; | |
1116 | int cur_epid = 0; | |
1117 | int epidx; | |
1118 | size_t frame_len; | |
1119 | void *frame; | |
1120 | ||
bd5a2569 | 1121 | spin_lock(&hw->rx_status_lock); |
26585930 TI |
1122 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
1123 | if (epidx == hw->my_epid) | |
1124 | continue; | |
1125 | ||
bd5a2569 TI |
1126 | if (fjes_hw_get_partner_ep_status(hw, epidx) == |
1127 | EP_PARTNER_SHARED) | |
1128 | adapter->hw.ep_shm_info[epidx] | |
1129 | .tx.info->v1i.rx_status |= FJES_RX_POLL_WORK; | |
26585930 | 1130 | } |
bd5a2569 | 1131 | spin_unlock(&hw->rx_status_lock); |
26585930 TI |
1132 | |
1133 | while (work_done < budget) { | |
1134 | prefetch(&adapter->hw); | |
1135 | frame = fjes_rxframe_get(adapter, &frame_len, &cur_epid); | |
1136 | ||
1137 | if (frame) { | |
1138 | skb = napi_alloc_skb(napi, frame_len); | |
1139 | if (!skb) { | |
1140 | adapter->stats64.rx_dropped += 1; | |
1141 | hw->ep_shm_info[cur_epid].net_stats | |
1142 | .rx_dropped += 1; | |
1143 | adapter->stats64.rx_errors += 1; | |
1144 | hw->ep_shm_info[cur_epid].net_stats | |
1145 | .rx_errors += 1; | |
1146 | } else { | |
59ae1d12 | 1147 | skb_put_data(skb, frame, frame_len); |
26585930 TI |
1148 | skb->protocol = eth_type_trans(skb, netdev); |
1149 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1150 | ||
1151 | netif_receive_skb(skb); | |
1152 | ||
1153 | work_done++; | |
1154 | ||
1155 | adapter->stats64.rx_packets += 1; | |
1156 | hw->ep_shm_info[cur_epid].net_stats | |
1157 | .rx_packets += 1; | |
1158 | adapter->stats64.rx_bytes += frame_len; | |
1159 | hw->ep_shm_info[cur_epid].net_stats | |
1160 | .rx_bytes += frame_len; | |
1161 | ||
1162 | if (is_multicast_ether_addr( | |
1163 | ((struct ethhdr *)frame)->h_dest)) { | |
1164 | adapter->stats64.multicast += 1; | |
1165 | hw->ep_shm_info[cur_epid].net_stats | |
1166 | .multicast += 1; | |
1167 | } | |
1168 | } | |
1169 | ||
1170 | fjes_rxframe_release(adapter, cur_epid); | |
1171 | adapter->unset_rx_last = true; | |
1172 | } else { | |
1173 | break; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | if (work_done < budget) { | |
6ad20165 | 1178 | napi_complete_done(napi, work_done); |
26585930 TI |
1179 | |
1180 | if (adapter->unset_rx_last) { | |
1181 | adapter->rx_last_jiffies = jiffies; | |
1182 | adapter->unset_rx_last = false; | |
1183 | } | |
1184 | ||
1185 | if (((long)jiffies - (long)adapter->rx_last_jiffies) < 3) { | |
1186 | napi_reschedule(napi); | |
1187 | } else { | |
bd5a2569 | 1188 | spin_lock(&hw->rx_status_lock); |
26585930 TI |
1189 | for (epidx = 0; epidx < hw->max_epid; epidx++) { |
1190 | if (epidx == hw->my_epid) | |
1191 | continue; | |
bd5a2569 TI |
1192 | if (fjes_hw_get_partner_ep_status(hw, epidx) == |
1193 | EP_PARTNER_SHARED) | |
1194 | adapter->hw.ep_shm_info[epidx].tx | |
1195 | .info->v1i.rx_status &= | |
26585930 TI |
1196 | ~FJES_RX_POLL_WORK; |
1197 | } | |
bd5a2569 | 1198 | spin_unlock(&hw->rx_status_lock); |
26585930 TI |
1199 | |
1200 | fjes_hw_set_irqmask(hw, REG_ICTL_MASK_RX_DATA, false); | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | return work_done; | |
1205 | } | |
1206 | ||
658d439b TI |
1207 | /* fjes_probe - Device Initialization Routine */ |
1208 | static int fjes_probe(struct platform_device *plat_dev) | |
1209 | { | |
2fcbca68 TI |
1210 | struct fjes_adapter *adapter; |
1211 | struct net_device *netdev; | |
1212 | struct resource *res; | |
1213 | struct fjes_hw *hw; | |
1214 | int err; | |
1215 | ||
1216 | err = -ENOMEM; | |
1217 | netdev = alloc_netdev_mq(sizeof(struct fjes_adapter), "es%d", | |
1218 | NET_NAME_UNKNOWN, fjes_netdev_setup, | |
1219 | FJES_MAX_QUEUES); | |
1220 | ||
1221 | if (!netdev) | |
1222 | goto err_out; | |
1223 | ||
1224 | SET_NETDEV_DEV(netdev, &plat_dev->dev); | |
1225 | ||
1226 | dev_set_drvdata(&plat_dev->dev, netdev); | |
1227 | adapter = netdev_priv(netdev); | |
1228 | adapter->netdev = netdev; | |
1229 | adapter->plat_dev = plat_dev; | |
1230 | hw = &adapter->hw; | |
1231 | hw->back = adapter; | |
1232 | ||
1233 | /* setup the private structure */ | |
1234 | err = fjes_sw_init(adapter); | |
1235 | if (err) | |
1236 | goto err_free_netdev; | |
1237 | ||
ff5b4210 | 1238 | INIT_WORK(&adapter->force_close_task, fjes_force_close_task); |
2fcbca68 TI |
1239 | adapter->force_reset = false; |
1240 | adapter->open_guard = false; | |
1241 | ||
f2edc4e1 | 1242 | adapter->txrx_wq = alloc_workqueue(DRV_NAME "/txrx", WQ_MEM_RECLAIM, 0); |
85ac30fa WD |
1243 | if (unlikely(!adapter->txrx_wq)) { |
1244 | err = -ENOMEM; | |
1245 | goto err_free_netdev; | |
1246 | } | |
1247 | ||
f2edc4e1 BS |
1248 | adapter->control_wq = alloc_workqueue(DRV_NAME "/control", |
1249 | WQ_MEM_RECLAIM, 0); | |
85ac30fa WD |
1250 | if (unlikely(!adapter->control_wq)) { |
1251 | err = -ENOMEM; | |
1252 | goto err_free_txrx_wq; | |
1253 | } | |
b772b9dc | 1254 | |
ac63b947 | 1255 | INIT_WORK(&adapter->tx_stall_task, fjes_tx_stall_task); |
b772b9dc TI |
1256 | INIT_WORK(&adapter->raise_intr_rxdata_task, |
1257 | fjes_raise_intr_rxdata_task); | |
8fc4cadb TI |
1258 | INIT_WORK(&adapter->unshare_watch_task, fjes_watch_unshare_task); |
1259 | adapter->unshare_watch_bitmask = 0; | |
b772b9dc | 1260 | |
8edb62a8 TI |
1261 | INIT_DELAYED_WORK(&adapter->interrupt_watch_task, fjes_irq_watch_task); |
1262 | adapter->interrupt_watch_enable = false; | |
1263 | ||
2fcbca68 TI |
1264 | res = platform_get_resource(plat_dev, IORESOURCE_MEM, 0); |
1265 | hw->hw_res.start = res->start; | |
e0897ae3 | 1266 | hw->hw_res.size = resource_size(res); |
2fcbca68 TI |
1267 | hw->hw_res.irq = platform_get_irq(plat_dev, 0); |
1268 | err = fjes_hw_init(&adapter->hw); | |
1269 | if (err) | |
85ac30fa | 1270 | goto err_free_control_wq; |
2fcbca68 TI |
1271 | |
1272 | /* setup MAC address (02:00:00:00:00:[epid])*/ | |
1273 | netdev->dev_addr[0] = 2; | |
1274 | netdev->dev_addr[1] = 0; | |
1275 | netdev->dev_addr[2] = 0; | |
1276 | netdev->dev_addr[3] = 0; | |
1277 | netdev->dev_addr[4] = 0; | |
1278 | netdev->dev_addr[5] = hw->my_epid; /* EPID */ | |
1279 | ||
1280 | err = register_netdev(netdev); | |
1281 | if (err) | |
1282 | goto err_hw_exit; | |
1283 | ||
1284 | netif_carrier_off(netdev); | |
1285 | ||
c753119e TI |
1286 | fjes_dbg_adapter_init(adapter); |
1287 | ||
658d439b | 1288 | return 0; |
2fcbca68 TI |
1289 | |
1290 | err_hw_exit: | |
1291 | fjes_hw_exit(&adapter->hw); | |
85ac30fa WD |
1292 | err_free_control_wq: |
1293 | destroy_workqueue(adapter->control_wq); | |
1294 | err_free_txrx_wq: | |
1295 | destroy_workqueue(adapter->txrx_wq); | |
2fcbca68 TI |
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]; | |
fe8daf5f | 1351 | netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
2fcbca68 TI |
1352 | } |
1353 | ||
8edb62a8 TI |
1354 | static void fjes_irq_watch_task(struct work_struct *work) |
1355 | { | |
1356 | struct fjes_adapter *adapter = container_of(to_delayed_work(work), | |
1357 | struct fjes_adapter, interrupt_watch_task); | |
1358 | ||
1359 | local_irq_disable(); | |
1360 | fjes_intr(adapter->hw.hw_res.irq, adapter); | |
1361 | local_irq_enable(); | |
1362 | ||
1363 | if (fjes_rxframe_search_exist(adapter, 0) >= 0) | |
1364 | napi_schedule(&adapter->napi); | |
1365 | ||
1366 | if (adapter->interrupt_watch_enable) { | |
1367 | if (!delayed_work_pending(&adapter->interrupt_watch_task)) | |
1368 | queue_delayed_work(adapter->control_wq, | |
1369 | &adapter->interrupt_watch_task, | |
1370 | FJES_IRQ_WATCH_DELAY); | |
1371 | } | |
1372 | } | |
1373 | ||
8fc4cadb TI |
1374 | static void fjes_watch_unshare_task(struct work_struct *work) |
1375 | { | |
1376 | struct fjes_adapter *adapter = | |
1377 | container_of(work, struct fjes_adapter, unshare_watch_task); | |
1378 | ||
1379 | struct net_device *netdev = adapter->netdev; | |
1380 | struct fjes_hw *hw = &adapter->hw; | |
1381 | ||
1382 | int unshare_watch, unshare_reserve; | |
1383 | int max_epid, my_epid, epidx; | |
1384 | int stop_req, stop_req_done; | |
1385 | ulong unshare_watch_bitmask; | |
bd5a2569 | 1386 | unsigned long flags; |
8fc4cadb TI |
1387 | int wait_time = 0; |
1388 | int is_shared; | |
1389 | int ret; | |
1390 | ||
1391 | my_epid = hw->my_epid; | |
1392 | max_epid = hw->max_epid; | |
1393 | ||
1394 | unshare_watch_bitmask = adapter->unshare_watch_bitmask; | |
1395 | adapter->unshare_watch_bitmask = 0; | |
1396 | ||
1397 | while ((unshare_watch_bitmask || hw->txrx_stop_req_bit) && | |
1398 | (wait_time < 3000)) { | |
b67030b1 CIK |
1399 | for (epidx = 0; epidx < max_epid; epidx++) { |
1400 | if (epidx == my_epid) | |
8fc4cadb TI |
1401 | continue; |
1402 | ||
1403 | is_shared = fjes_hw_epid_is_shared(hw->hw_info.share, | |
1404 | epidx); | |
1405 | ||
1406 | stop_req = test_bit(epidx, &hw->txrx_stop_req_bit); | |
1407 | ||
1408 | stop_req_done = hw->ep_shm_info[epidx].rx.info->v1i.rx_status & | |
1409 | FJES_RX_STOP_REQ_DONE; | |
1410 | ||
1411 | unshare_watch = test_bit(epidx, &unshare_watch_bitmask); | |
1412 | ||
1413 | unshare_reserve = test_bit(epidx, | |
1414 | &hw->hw_info.buffer_unshare_reserve_bit); | |
1415 | ||
1416 | if ((!stop_req || | |
1417 | (is_shared && (!is_shared || !stop_req_done))) && | |
1418 | (is_shared || !unshare_watch || !unshare_reserve)) | |
1419 | continue; | |
1420 | ||
1421 | mutex_lock(&hw->hw_info.lock); | |
1422 | ret = fjes_hw_unregister_buff_addr(hw, epidx); | |
1423 | switch (ret) { | |
1424 | case 0: | |
1425 | break; | |
1426 | case -ENOMSG: | |
1427 | case -EBUSY: | |
1428 | default: | |
1429 | if (!work_pending( | |
1430 | &adapter->force_close_task)) { | |
1431 | adapter->force_reset = true; | |
1432 | schedule_work( | |
1433 | &adapter->force_close_task); | |
1434 | } | |
1435 | break; | |
1436 | } | |
1437 | mutex_unlock(&hw->hw_info.lock); | |
21b7efbc TI |
1438 | hw->ep_shm_info[epidx].ep_stats |
1439 | .com_unregist_buf_exec += 1; | |
8fc4cadb | 1440 | |
bd5a2569 | 1441 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1442 | fjes_hw_setup_epbuf(&hw->ep_shm_info[epidx].tx, |
1443 | netdev->dev_addr, netdev->mtu); | |
bd5a2569 | 1444 | spin_unlock_irqrestore(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1445 | |
1446 | clear_bit(epidx, &hw->txrx_stop_req_bit); | |
1447 | clear_bit(epidx, &unshare_watch_bitmask); | |
1448 | clear_bit(epidx, | |
1449 | &hw->hw_info.buffer_unshare_reserve_bit); | |
1450 | } | |
1451 | ||
1452 | msleep(100); | |
1453 | wait_time += 100; | |
1454 | } | |
1455 | ||
1456 | if (hw->hw_info.buffer_unshare_reserve_bit) { | |
b67030b1 CIK |
1457 | for (epidx = 0; epidx < max_epid; epidx++) { |
1458 | if (epidx == my_epid) | |
8fc4cadb TI |
1459 | continue; |
1460 | ||
1461 | if (test_bit(epidx, | |
1462 | &hw->hw_info.buffer_unshare_reserve_bit)) { | |
1463 | mutex_lock(&hw->hw_info.lock); | |
1464 | ||
1465 | ret = fjes_hw_unregister_buff_addr(hw, epidx); | |
1466 | switch (ret) { | |
1467 | case 0: | |
1468 | break; | |
1469 | case -ENOMSG: | |
1470 | case -EBUSY: | |
1471 | default: | |
1472 | if (!work_pending( | |
1473 | &adapter->force_close_task)) { | |
1474 | adapter->force_reset = true; | |
1475 | schedule_work( | |
1476 | &adapter->force_close_task); | |
1477 | } | |
1478 | break; | |
1479 | } | |
1480 | mutex_unlock(&hw->hw_info.lock); | |
1481 | ||
21b7efbc TI |
1482 | hw->ep_shm_info[epidx].ep_stats |
1483 | .com_unregist_buf_exec += 1; | |
1484 | ||
bd5a2569 | 1485 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1486 | fjes_hw_setup_epbuf( |
1487 | &hw->ep_shm_info[epidx].tx, | |
1488 | netdev->dev_addr, netdev->mtu); | |
bd5a2569 TI |
1489 | spin_unlock_irqrestore(&hw->rx_status_lock, |
1490 | flags); | |
8fc4cadb TI |
1491 | |
1492 | clear_bit(epidx, &hw->txrx_stop_req_bit); | |
1493 | clear_bit(epidx, &unshare_watch_bitmask); | |
1494 | clear_bit(epidx, &hw->hw_info.buffer_unshare_reserve_bit); | |
1495 | } | |
1496 | ||
1497 | if (test_bit(epidx, &unshare_watch_bitmask)) { | |
bd5a2569 | 1498 | spin_lock_irqsave(&hw->rx_status_lock, flags); |
8fc4cadb TI |
1499 | hw->ep_shm_info[epidx].tx.info->v1i.rx_status &= |
1500 | ~FJES_RX_STOP_REQ_DONE; | |
bd5a2569 TI |
1501 | spin_unlock_irqrestore(&hw->rx_status_lock, |
1502 | flags); | |
8fc4cadb TI |
1503 | } |
1504 | } | |
1505 | } | |
1506 | } | |
1507 | ||
ac23d3ca YI |
1508 | static acpi_status |
1509 | acpi_find_extended_socket_device(acpi_handle obj_handle, u32 level, | |
1510 | void *context, void **return_value) | |
1511 | { | |
1512 | struct acpi_device *device; | |
1513 | bool *found = context; | |
1514 | int result; | |
1515 | ||
1516 | result = acpi_bus_get_device(obj_handle, &device); | |
1517 | if (result) | |
1518 | return AE_OK; | |
1519 | ||
1520 | if (strcmp(acpi_device_hid(device), ACPI_MOTHERBOARD_RESOURCE_HID)) | |
1521 | return AE_OK; | |
1522 | ||
1523 | if (!is_extended_socket_device(device)) | |
1524 | return AE_OK; | |
1525 | ||
2b396d30 YI |
1526 | if (acpi_check_extended_socket_status(device)) |
1527 | return AE_OK; | |
1528 | ||
ac23d3ca YI |
1529 | *found = true; |
1530 | return AE_CTRL_TERMINATE; | |
1531 | } | |
1532 | ||
658d439b TI |
1533 | /* fjes_init_module - Driver Registration Routine */ |
1534 | static int __init fjes_init_module(void) | |
1535 | { | |
ac23d3ca | 1536 | bool found = false; |
658d439b TI |
1537 | int result; |
1538 | ||
ac23d3ca YI |
1539 | acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, |
1540 | acpi_find_extended_socket_device, NULL, &found, | |
1541 | NULL); | |
1542 | ||
1543 | if (!found) | |
1544 | return -ENODEV; | |
1545 | ||
658d439b TI |
1546 | pr_info("%s - version %s - %s\n", |
1547 | fjes_driver_string, fjes_driver_version, fjes_copyright); | |
1548 | ||
c753119e TI |
1549 | fjes_dbg_init(); |
1550 | ||
658d439b | 1551 | result = platform_driver_register(&fjes_driver); |
c753119e TI |
1552 | if (result < 0) { |
1553 | fjes_dbg_exit(); | |
658d439b | 1554 | return result; |
c753119e | 1555 | } |
658d439b TI |
1556 | |
1557 | result = acpi_bus_register_driver(&fjes_acpi_driver); | |
1558 | if (result < 0) | |
1559 | goto fail_acpi_driver; | |
1560 | ||
1561 | return 0; | |
1562 | ||
1563 | fail_acpi_driver: | |
1564 | platform_driver_unregister(&fjes_driver); | |
c753119e | 1565 | fjes_dbg_exit(); |
658d439b TI |
1566 | return result; |
1567 | } | |
1568 | ||
1569 | module_init(fjes_init_module); | |
1570 | ||
1571 | /* fjes_exit_module - Driver Exit Cleanup Routine */ | |
1572 | static void __exit fjes_exit_module(void) | |
1573 | { | |
1574 | acpi_bus_unregister_driver(&fjes_acpi_driver); | |
1575 | platform_driver_unregister(&fjes_driver); | |
c753119e | 1576 | fjes_dbg_exit(); |
658d439b TI |
1577 | } |
1578 | ||
1579 | module_exit(fjes_exit_module); |