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9a1bb602 HM |
1 | /* Copyright (c) 2014 Broadcom Corporation |
2 | * | |
3 | * Permission to use, copy, modify, and/or distribute this software for any | |
4 | * purpose with or without fee is hereby granted, provided that the above | |
5 | * copyright notice and this permission notice appear in all copies. | |
6 | * | |
7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
10 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
12 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
13 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
14 | */ | |
15 | ||
16 | /******************************************************************************* | |
17 | * Communicates with the dongle by using dcmd codes. | |
18 | * For certain dcmd codes, the dongle interprets string data from the host. | |
19 | ******************************************************************************/ | |
20 | ||
21 | #include <linux/types.h> | |
22 | #include <linux/netdevice.h> | |
23 | ||
24 | #include <brcmu_utils.h> | |
25 | #include <brcmu_wifi.h> | |
26 | ||
122d3d04 | 27 | #include "core.h" |
a8e8ed34 | 28 | #include "debug.h" |
9a1bb602 HM |
29 | #include "proto.h" |
30 | #include "msgbuf.h" | |
31 | #include "commonring.h" | |
32 | #include "flowring.h" | |
d14f78b9 | 33 | #include "bus.h" |
9a1bb602 HM |
34 | #include "tracepoint.h" |
35 | ||
36 | ||
37 | #define MSGBUF_IOCTL_RESP_TIMEOUT 2000 | |
38 | ||
39 | #define MSGBUF_TYPE_GEN_STATUS 0x1 | |
40 | #define MSGBUF_TYPE_RING_STATUS 0x2 | |
41 | #define MSGBUF_TYPE_FLOW_RING_CREATE 0x3 | |
42 | #define MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT 0x4 | |
43 | #define MSGBUF_TYPE_FLOW_RING_DELETE 0x5 | |
44 | #define MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT 0x6 | |
45 | #define MSGBUF_TYPE_FLOW_RING_FLUSH 0x7 | |
46 | #define MSGBUF_TYPE_FLOW_RING_FLUSH_CMPLT 0x8 | |
47 | #define MSGBUF_TYPE_IOCTLPTR_REQ 0x9 | |
48 | #define MSGBUF_TYPE_IOCTLPTR_REQ_ACK 0xA | |
49 | #define MSGBUF_TYPE_IOCTLRESP_BUF_POST 0xB | |
50 | #define MSGBUF_TYPE_IOCTL_CMPLT 0xC | |
51 | #define MSGBUF_TYPE_EVENT_BUF_POST 0xD | |
52 | #define MSGBUF_TYPE_WL_EVENT 0xE | |
53 | #define MSGBUF_TYPE_TX_POST 0xF | |
54 | #define MSGBUF_TYPE_TX_STATUS 0x10 | |
55 | #define MSGBUF_TYPE_RXBUF_POST 0x11 | |
56 | #define MSGBUF_TYPE_RX_CMPLT 0x12 | |
57 | #define MSGBUF_TYPE_LPBK_DMAXFER 0x13 | |
58 | #define MSGBUF_TYPE_LPBK_DMAXFER_CMPLT 0x14 | |
59 | ||
60 | #define NR_TX_PKTIDS 2048 | |
61 | #define NR_RX_PKTIDS 1024 | |
62 | ||
63 | #define BRCMF_IOCTL_REQ_PKTID 0xFFFE | |
64 | ||
65 | #define BRCMF_MSGBUF_MAX_PKT_SIZE 2048 | |
66 | #define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD 32 | |
67 | #define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST 8 | |
68 | #define BRCMF_MSGBUF_MAX_EVENTBUF_POST 8 | |
69 | ||
70 | #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3 0x01 | |
71 | #define BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT 5 | |
72 | ||
73 | #define BRCMF_MSGBUF_TX_FLUSH_CNT1 32 | |
74 | #define BRCMF_MSGBUF_TX_FLUSH_CNT2 96 | |
75 | ||
464a5f3f | 76 | #define BRCMF_MSGBUF_DELAY_TXWORKER_THRS 96 |
5ef1e604 | 77 | #define BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS 32 |
df738c2f HM |
78 | #define BRCMF_MSGBUF_UPDATE_RX_PTR_THRS 48 |
79 | ||
9a1bb602 HM |
80 | |
81 | struct msgbuf_common_hdr { | |
82 | u8 msgtype; | |
83 | u8 ifidx; | |
84 | u8 flags; | |
85 | u8 rsvd0; | |
86 | __le32 request_id; | |
87 | }; | |
88 | ||
89 | struct msgbuf_buf_addr { | |
90 | __le32 low_addr; | |
91 | __le32 high_addr; | |
92 | }; | |
93 | ||
94 | struct msgbuf_ioctl_req_hdr { | |
95 | struct msgbuf_common_hdr msg; | |
96 | __le32 cmd; | |
97 | __le16 trans_id; | |
98 | __le16 input_buf_len; | |
99 | __le16 output_buf_len; | |
100 | __le16 rsvd0[3]; | |
101 | struct msgbuf_buf_addr req_buf_addr; | |
102 | __le32 rsvd1[2]; | |
103 | }; | |
104 | ||
105 | struct msgbuf_tx_msghdr { | |
106 | struct msgbuf_common_hdr msg; | |
107 | u8 txhdr[ETH_HLEN]; | |
108 | u8 flags; | |
109 | u8 seg_cnt; | |
110 | struct msgbuf_buf_addr metadata_buf_addr; | |
111 | struct msgbuf_buf_addr data_buf_addr; | |
112 | __le16 metadata_buf_len; | |
113 | __le16 data_len; | |
114 | __le32 rsvd0; | |
115 | }; | |
116 | ||
117 | struct msgbuf_rx_bufpost { | |
118 | struct msgbuf_common_hdr msg; | |
119 | __le16 metadata_buf_len; | |
120 | __le16 data_buf_len; | |
121 | __le32 rsvd0; | |
122 | struct msgbuf_buf_addr metadata_buf_addr; | |
123 | struct msgbuf_buf_addr data_buf_addr; | |
124 | }; | |
125 | ||
126 | struct msgbuf_rx_ioctl_resp_or_event { | |
127 | struct msgbuf_common_hdr msg; | |
128 | __le16 host_buf_len; | |
129 | __le16 rsvd0[3]; | |
130 | struct msgbuf_buf_addr host_buf_addr; | |
131 | __le32 rsvd1[4]; | |
132 | }; | |
133 | ||
134 | struct msgbuf_completion_hdr { | |
135 | __le16 status; | |
136 | __le16 flow_ring_id; | |
137 | }; | |
138 | ||
139 | struct msgbuf_rx_event { | |
140 | struct msgbuf_common_hdr msg; | |
141 | struct msgbuf_completion_hdr compl_hdr; | |
142 | __le16 event_data_len; | |
143 | __le16 seqnum; | |
144 | __le16 rsvd0[4]; | |
145 | }; | |
146 | ||
147 | struct msgbuf_ioctl_resp_hdr { | |
148 | struct msgbuf_common_hdr msg; | |
149 | struct msgbuf_completion_hdr compl_hdr; | |
150 | __le16 resp_len; | |
151 | __le16 trans_id; | |
152 | __le32 cmd; | |
153 | __le32 rsvd0; | |
154 | }; | |
155 | ||
156 | struct msgbuf_tx_status { | |
157 | struct msgbuf_common_hdr msg; | |
158 | struct msgbuf_completion_hdr compl_hdr; | |
159 | __le16 metadata_len; | |
160 | __le16 tx_status; | |
161 | }; | |
162 | ||
163 | struct msgbuf_rx_complete { | |
164 | struct msgbuf_common_hdr msg; | |
165 | struct msgbuf_completion_hdr compl_hdr; | |
166 | __le16 metadata_len; | |
167 | __le16 data_len; | |
168 | __le16 data_offset; | |
169 | __le16 flags; | |
170 | __le32 rx_status_0; | |
171 | __le32 rx_status_1; | |
172 | __le32 rsvd0; | |
173 | }; | |
174 | ||
175 | struct msgbuf_tx_flowring_create_req { | |
176 | struct msgbuf_common_hdr msg; | |
177 | u8 da[ETH_ALEN]; | |
178 | u8 sa[ETH_ALEN]; | |
179 | u8 tid; | |
180 | u8 if_flags; | |
181 | __le16 flow_ring_id; | |
182 | u8 tc; | |
183 | u8 priority; | |
184 | __le16 int_vector; | |
185 | __le16 max_items; | |
186 | __le16 len_item; | |
187 | struct msgbuf_buf_addr flow_ring_addr; | |
188 | }; | |
189 | ||
190 | struct msgbuf_tx_flowring_delete_req { | |
191 | struct msgbuf_common_hdr msg; | |
192 | __le16 flow_ring_id; | |
193 | __le16 reason; | |
194 | __le32 rsvd0[7]; | |
195 | }; | |
196 | ||
197 | struct msgbuf_flowring_create_resp { | |
198 | struct msgbuf_common_hdr msg; | |
199 | struct msgbuf_completion_hdr compl_hdr; | |
200 | __le32 rsvd0[3]; | |
201 | }; | |
202 | ||
203 | struct msgbuf_flowring_delete_resp { | |
204 | struct msgbuf_common_hdr msg; | |
205 | struct msgbuf_completion_hdr compl_hdr; | |
206 | __le32 rsvd0[3]; | |
207 | }; | |
208 | ||
209 | struct msgbuf_flowring_flush_resp { | |
210 | struct msgbuf_common_hdr msg; | |
211 | struct msgbuf_completion_hdr compl_hdr; | |
212 | __le32 rsvd0[3]; | |
213 | }; | |
214 | ||
3ba06610 HM |
215 | struct brcmf_msgbuf_work_item { |
216 | struct list_head queue; | |
217 | u32 flowid; | |
218 | int ifidx; | |
219 | u8 sa[ETH_ALEN]; | |
220 | u8 da[ETH_ALEN]; | |
221 | }; | |
222 | ||
9a1bb602 HM |
223 | struct brcmf_msgbuf { |
224 | struct brcmf_pub *drvr; | |
225 | ||
226 | struct brcmf_commonring **commonrings; | |
227 | struct brcmf_commonring **flowrings; | |
228 | dma_addr_t *flowring_dma_handle; | |
229 | u16 nrof_flowrings; | |
230 | ||
231 | u16 rx_dataoffset; | |
232 | u32 max_rxbufpost; | |
233 | u16 rx_metadata_offset; | |
234 | u32 rxbufpost; | |
235 | ||
236 | u32 max_ioctlrespbuf; | |
237 | u32 cur_ioctlrespbuf; | |
238 | u32 max_eventbuf; | |
239 | u32 cur_eventbuf; | |
240 | ||
241 | void *ioctbuf; | |
242 | dma_addr_t ioctbuf_handle; | |
243 | u32 ioctbuf_phys_hi; | |
244 | u32 ioctbuf_phys_lo; | |
ff0a6230 | 245 | int ioctl_resp_status; |
9a1bb602 HM |
246 | u32 ioctl_resp_ret_len; |
247 | u32 ioctl_resp_pktid; | |
248 | ||
249 | u16 data_seq_no; | |
250 | u16 ioctl_seq_no; | |
251 | u32 reqid; | |
252 | wait_queue_head_t ioctl_resp_wait; | |
253 | bool ctl_completed; | |
254 | ||
255 | struct brcmf_msgbuf_pktids *tx_pktids; | |
256 | struct brcmf_msgbuf_pktids *rx_pktids; | |
257 | struct brcmf_flowring *flow; | |
258 | ||
259 | struct workqueue_struct *txflow_wq; | |
260 | struct work_struct txflow_work; | |
261 | unsigned long *flow_map; | |
262 | unsigned long *txstatus_done_map; | |
3ba06610 HM |
263 | |
264 | struct work_struct flowring_work; | |
265 | spinlock_t flowring_work_lock; | |
266 | struct list_head work_queue; | |
9a1bb602 HM |
267 | }; |
268 | ||
269 | struct brcmf_msgbuf_pktid { | |
270 | atomic_t allocated; | |
271 | u16 data_offset; | |
272 | struct sk_buff *skb; | |
273 | dma_addr_t physaddr; | |
274 | }; | |
275 | ||
276 | struct brcmf_msgbuf_pktids { | |
277 | u32 array_size; | |
278 | u32 last_allocated_idx; | |
279 | enum dma_data_direction direction; | |
280 | struct brcmf_msgbuf_pktid *array; | |
281 | }; | |
282 | ||
9a1bb602 HM |
283 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf); |
284 | ||
285 | ||
286 | static struct brcmf_msgbuf_pktids * | |
287 | brcmf_msgbuf_init_pktids(u32 nr_array_entries, | |
288 | enum dma_data_direction direction) | |
289 | { | |
290 | struct brcmf_msgbuf_pktid *array; | |
291 | struct brcmf_msgbuf_pktids *pktids; | |
292 | ||
3ba06610 | 293 | array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL); |
9a1bb602 HM |
294 | if (!array) |
295 | return NULL; | |
296 | ||
3ba06610 | 297 | pktids = kzalloc(sizeof(*pktids), GFP_KERNEL); |
9a1bb602 HM |
298 | if (!pktids) { |
299 | kfree(array); | |
300 | return NULL; | |
301 | } | |
302 | pktids->array = array; | |
303 | pktids->array_size = nr_array_entries; | |
304 | ||
305 | return pktids; | |
306 | } | |
307 | ||
308 | ||
309 | static int | |
310 | brcmf_msgbuf_alloc_pktid(struct device *dev, | |
311 | struct brcmf_msgbuf_pktids *pktids, | |
312 | struct sk_buff *skb, u16 data_offset, | |
313 | dma_addr_t *physaddr, u32 *idx) | |
314 | { | |
315 | struct brcmf_msgbuf_pktid *array; | |
316 | u32 count; | |
317 | ||
318 | array = pktids->array; | |
319 | ||
320 | *physaddr = dma_map_single(dev, skb->data + data_offset, | |
321 | skb->len - data_offset, pktids->direction); | |
322 | ||
323 | if (dma_mapping_error(dev, *physaddr)) { | |
324 | brcmf_err("dma_map_single failed !!\n"); | |
325 | return -ENOMEM; | |
326 | } | |
327 | ||
328 | *idx = pktids->last_allocated_idx; | |
329 | ||
330 | count = 0; | |
331 | do { | |
332 | (*idx)++; | |
333 | if (*idx == pktids->array_size) | |
334 | *idx = 0; | |
335 | if (array[*idx].allocated.counter == 0) | |
336 | if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0) | |
337 | break; | |
338 | count++; | |
339 | } while (count < pktids->array_size); | |
340 | ||
341 | if (count == pktids->array_size) | |
342 | return -ENOMEM; | |
343 | ||
344 | array[*idx].data_offset = data_offset; | |
345 | array[*idx].physaddr = *physaddr; | |
346 | array[*idx].skb = skb; | |
347 | ||
348 | pktids->last_allocated_idx = *idx; | |
349 | ||
350 | return 0; | |
351 | } | |
352 | ||
353 | ||
354 | static struct sk_buff * | |
355 | brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids, | |
356 | u32 idx) | |
357 | { | |
358 | struct brcmf_msgbuf_pktid *pktid; | |
359 | struct sk_buff *skb; | |
360 | ||
361 | if (idx >= pktids->array_size) { | |
362 | brcmf_err("Invalid packet id %d (max %d)\n", idx, | |
363 | pktids->array_size); | |
364 | return NULL; | |
365 | } | |
366 | if (pktids->array[idx].allocated.counter) { | |
367 | pktid = &pktids->array[idx]; | |
368 | dma_unmap_single(dev, pktid->physaddr, | |
369 | pktid->skb->len - pktid->data_offset, | |
370 | pktids->direction); | |
371 | skb = pktid->skb; | |
372 | pktid->allocated.counter = 0; | |
373 | return skb; | |
374 | } else { | |
375 | brcmf_err("Invalid packet id %d (not in use)\n", idx); | |
376 | } | |
377 | ||
378 | return NULL; | |
379 | } | |
380 | ||
381 | ||
382 | static void | |
383 | brcmf_msgbuf_release_array(struct device *dev, | |
384 | struct brcmf_msgbuf_pktids *pktids) | |
385 | { | |
386 | struct brcmf_msgbuf_pktid *array; | |
387 | struct brcmf_msgbuf_pktid *pktid; | |
388 | u32 count; | |
389 | ||
390 | array = pktids->array; | |
391 | count = 0; | |
392 | do { | |
393 | if (array[count].allocated.counter) { | |
394 | pktid = &array[count]; | |
395 | dma_unmap_single(dev, pktid->physaddr, | |
396 | pktid->skb->len - pktid->data_offset, | |
397 | pktids->direction); | |
398 | brcmu_pkt_buf_free_skb(pktid->skb); | |
399 | } | |
400 | count++; | |
401 | } while (count < pktids->array_size); | |
402 | ||
403 | kfree(array); | |
404 | kfree(pktids); | |
405 | } | |
406 | ||
407 | ||
408 | static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf) | |
409 | { | |
410 | if (msgbuf->rx_pktids) | |
411 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, | |
412 | msgbuf->rx_pktids); | |
413 | if (msgbuf->tx_pktids) | |
414 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, | |
415 | msgbuf->tx_pktids); | |
416 | } | |
417 | ||
418 | ||
419 | static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx, | |
420 | uint cmd, void *buf, uint len) | |
421 | { | |
422 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
423 | struct brcmf_commonring *commonring; | |
424 | struct msgbuf_ioctl_req_hdr *request; | |
425 | u16 buf_len; | |
426 | void *ret_ptr; | |
427 | int err; | |
428 | ||
429 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
430 | brcmf_commonring_lock(commonring); | |
431 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
432 | if (!ret_ptr) { | |
433 | brcmf_err("Failed to reserve space in commonring\n"); | |
434 | brcmf_commonring_unlock(commonring); | |
435 | return -ENOMEM; | |
436 | } | |
437 | ||
438 | msgbuf->reqid++; | |
439 | ||
440 | request = (struct msgbuf_ioctl_req_hdr *)ret_ptr; | |
441 | request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ; | |
442 | request->msg.ifidx = (u8)ifidx; | |
443 | request->msg.flags = 0; | |
444 | request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID); | |
445 | request->cmd = cpu_to_le32(cmd); | |
446 | request->output_buf_len = cpu_to_le16(len); | |
447 | request->trans_id = cpu_to_le16(msgbuf->reqid); | |
448 | ||
449 | buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE); | |
450 | request->input_buf_len = cpu_to_le16(buf_len); | |
451 | request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi); | |
452 | request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo); | |
453 | if (buf) | |
454 | memcpy(msgbuf->ioctbuf, buf, buf_len); | |
455 | else | |
456 | memset(msgbuf->ioctbuf, 0, buf_len); | |
9a1bb602 HM |
457 | |
458 | err = brcmf_commonring_write_complete(commonring); | |
459 | brcmf_commonring_unlock(commonring); | |
460 | ||
461 | return err; | |
462 | } | |
463 | ||
464 | ||
465 | static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf) | |
466 | { | |
467 | return wait_event_timeout(msgbuf->ioctl_resp_wait, | |
468 | msgbuf->ctl_completed, | |
469 | msecs_to_jiffies(MSGBUF_IOCTL_RESP_TIMEOUT)); | |
470 | } | |
471 | ||
472 | ||
473 | static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf) | |
474 | { | |
d375bc8a HM |
475 | msgbuf->ctl_completed = true; |
476 | if (waitqueue_active(&msgbuf->ioctl_resp_wait)) | |
9a1bb602 | 477 | wake_up(&msgbuf->ioctl_resp_wait); |
9a1bb602 HM |
478 | } |
479 | ||
480 | ||
481 | static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx, | |
482 | uint cmd, void *buf, uint len) | |
483 | { | |
484 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
485 | struct sk_buff *skb = NULL; | |
486 | int timeout; | |
487 | int err; | |
488 | ||
489 | brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len); | |
490 | msgbuf->ctl_completed = false; | |
491 | err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len); | |
492 | if (err) | |
493 | return err; | |
494 | ||
495 | timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf); | |
496 | if (!timeout) { | |
497 | brcmf_err("Timeout on response for query command\n"); | |
498 | return -EIO; | |
499 | } | |
500 | ||
501 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
502 | msgbuf->rx_pktids, | |
503 | msgbuf->ioctl_resp_pktid); | |
504 | if (msgbuf->ioctl_resp_ret_len != 0) { | |
7d072b40 | 505 | if (!skb) |
9a1bb602 | 506 | return -EBADF; |
7d072b40 | 507 | |
9a1bb602 HM |
508 | memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ? |
509 | len : msgbuf->ioctl_resp_ret_len); | |
510 | } | |
ac96ce83 | 511 | brcmu_pkt_buf_free_skb(skb); |
9a1bb602 HM |
512 | |
513 | return msgbuf->ioctl_resp_status; | |
514 | } | |
515 | ||
516 | ||
517 | static int brcmf_msgbuf_set_dcmd(struct brcmf_pub *drvr, int ifidx, | |
518 | uint cmd, void *buf, uint len) | |
519 | { | |
520 | return brcmf_msgbuf_query_dcmd(drvr, ifidx, cmd, buf, len); | |
521 | } | |
522 | ||
523 | ||
524 | static int brcmf_msgbuf_hdrpull(struct brcmf_pub *drvr, bool do_fws, | |
796cfb65 | 525 | struct sk_buff *skb, struct brcmf_if **ifp) |
9a1bb602 HM |
526 | { |
527 | return -ENODEV; | |
528 | } | |
529 | ||
530 | ||
531 | static void | |
532 | brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid) | |
533 | { | |
534 | u32 dma_sz; | |
535 | void *dma_buf; | |
536 | ||
537 | brcmf_dbg(MSGBUF, "Removing flowring %d\n", flowid); | |
538 | ||
539 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; | |
540 | dma_buf = msgbuf->flowrings[flowid]->buf_addr; | |
541 | dma_free_coherent(msgbuf->drvr->bus_if->dev, dma_sz, dma_buf, | |
542 | msgbuf->flowring_dma_handle[flowid]); | |
543 | ||
544 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
545 | } | |
546 | ||
547 | ||
3ba06610 HM |
548 | static struct brcmf_msgbuf_work_item * |
549 | brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf) | |
550 | { | |
551 | struct brcmf_msgbuf_work_item *work = NULL; | |
552 | ulong flags; | |
553 | ||
554 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); | |
555 | if (!list_empty(&msgbuf->work_queue)) { | |
556 | work = list_first_entry(&msgbuf->work_queue, | |
557 | struct brcmf_msgbuf_work_item, queue); | |
558 | list_del(&work->queue); | |
559 | } | |
560 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); | |
561 | ||
562 | return work; | |
563 | } | |
564 | ||
565 | ||
566 | static u32 | |
567 | brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf, | |
568 | struct brcmf_msgbuf_work_item *work) | |
9a1bb602 HM |
569 | { |
570 | struct msgbuf_tx_flowring_create_req *create; | |
9a1bb602 HM |
571 | struct brcmf_commonring *commonring; |
572 | void *ret_ptr; | |
573 | u32 flowid; | |
574 | void *dma_buf; | |
575 | u32 dma_sz; | |
83297aaa | 576 | u64 address; |
9a1bb602 HM |
577 | int err; |
578 | ||
3ba06610 | 579 | flowid = work->flowid; |
9a1bb602 | 580 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
9a1bb602 HM |
581 | dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz, |
582 | &msgbuf->flowring_dma_handle[flowid], | |
3ba06610 | 583 | GFP_KERNEL); |
9a1bb602 HM |
584 | if (!dma_buf) { |
585 | brcmf_err("dma_alloc_coherent failed\n"); | |
586 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
587 | return BRCMF_FLOWRING_INVALID_ID; | |
588 | } | |
589 | ||
590 | brcmf_commonring_config(msgbuf->flowrings[flowid], | |
591 | BRCMF_H2D_TXFLOWRING_MAX_ITEM, | |
592 | BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf); | |
593 | ||
594 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
595 | brcmf_commonring_lock(commonring); | |
596 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
597 | if (!ret_ptr) { | |
598 | brcmf_err("Failed to reserve space in commonring\n"); | |
599 | brcmf_commonring_unlock(commonring); | |
600 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
601 | return BRCMF_FLOWRING_INVALID_ID; | |
602 | } | |
603 | ||
604 | create = (struct msgbuf_tx_flowring_create_req *)ret_ptr; | |
605 | create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE; | |
3ba06610 | 606 | create->msg.ifidx = work->ifidx; |
9a1bb602 HM |
607 | create->msg.request_id = 0; |
608 | create->tid = brcmf_flowring_tid(msgbuf->flow, flowid); | |
609 | create->flow_ring_id = cpu_to_le16(flowid + | |
610 | BRCMF_NROF_H2D_COMMON_MSGRINGS); | |
3ba06610 HM |
611 | memcpy(create->sa, work->sa, ETH_ALEN); |
612 | memcpy(create->da, work->da, ETH_ALEN); | |
83297aaa | 613 | address = (u64)msgbuf->flowring_dma_handle[flowid]; |
9a1bb602 HM |
614 | create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32); |
615 | create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff); | |
616 | create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM); | |
617 | create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE); | |
618 | ||
619 | brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n", | |
3ba06610 | 620 | flowid, work->da, create->tid, work->ifidx); |
9a1bb602 HM |
621 | |
622 | err = brcmf_commonring_write_complete(commonring); | |
623 | brcmf_commonring_unlock(commonring); | |
624 | if (err) { | |
625 | brcmf_err("Failed to write commonring\n"); | |
626 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
627 | return BRCMF_FLOWRING_INVALID_ID; | |
628 | } | |
629 | ||
630 | return flowid; | |
631 | } | |
632 | ||
633 | ||
3ba06610 HM |
634 | static void brcmf_msgbuf_flowring_worker(struct work_struct *work) |
635 | { | |
636 | struct brcmf_msgbuf *msgbuf; | |
637 | struct brcmf_msgbuf_work_item *create; | |
638 | ||
639 | msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work); | |
640 | ||
641 | while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) { | |
642 | brcmf_msgbuf_flowring_create_worker(msgbuf, create); | |
643 | kfree(create); | |
644 | } | |
645 | } | |
646 | ||
647 | ||
648 | static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx, | |
649 | struct sk_buff *skb) | |
650 | { | |
651 | struct brcmf_msgbuf_work_item *create; | |
652 | struct ethhdr *eh = (struct ethhdr *)(skb->data); | |
653 | u32 flowid; | |
654 | ulong flags; | |
655 | ||
656 | create = kzalloc(sizeof(*create), GFP_ATOMIC); | |
657 | if (create == NULL) | |
658 | return BRCMF_FLOWRING_INVALID_ID; | |
659 | ||
660 | flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest, | |
661 | skb->priority, ifidx); | |
662 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { | |
663 | kfree(create); | |
664 | return flowid; | |
665 | } | |
666 | ||
667 | create->flowid = flowid; | |
668 | create->ifidx = ifidx; | |
669 | memcpy(create->sa, eh->h_source, ETH_ALEN); | |
670 | memcpy(create->da, eh->h_dest, ETH_ALEN); | |
671 | ||
672 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); | |
673 | list_add_tail(&create->queue, &msgbuf->work_queue); | |
674 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); | |
675 | schedule_work(&msgbuf->flowring_work); | |
676 | ||
677 | return flowid; | |
678 | } | |
679 | ||
680 | ||
9a1bb602 HM |
681 | static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u8 flowid) |
682 | { | |
683 | struct brcmf_flowring *flow = msgbuf->flow; | |
684 | struct brcmf_commonring *commonring; | |
685 | void *ret_ptr; | |
686 | u32 count; | |
687 | struct sk_buff *skb; | |
688 | dma_addr_t physaddr; | |
689 | u32 pktid; | |
690 | struct msgbuf_tx_msghdr *tx_msghdr; | |
83297aaa | 691 | u64 address; |
9a1bb602 HM |
692 | |
693 | commonring = msgbuf->flowrings[flowid]; | |
694 | if (!brcmf_commonring_write_available(commonring)) | |
695 | return; | |
696 | ||
697 | brcmf_commonring_lock(commonring); | |
698 | ||
699 | count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1; | |
700 | while (brcmf_flowring_qlen(flow, flowid)) { | |
701 | skb = brcmf_flowring_dequeue(flow, flowid); | |
702 | if (skb == NULL) { | |
703 | brcmf_err("No SKB, but qlen %d\n", | |
704 | brcmf_flowring_qlen(flow, flowid)); | |
705 | break; | |
706 | } | |
707 | skb_orphan(skb); | |
708 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
709 | msgbuf->tx_pktids, skb, ETH_HLEN, | |
710 | &physaddr, &pktid)) { | |
711 | brcmf_flowring_reinsert(flow, flowid, skb); | |
712 | brcmf_err("No PKTID available !!\n"); | |
713 | break; | |
714 | } | |
715 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
716 | if (!ret_ptr) { | |
717 | brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
718 | msgbuf->tx_pktids, pktid); | |
719 | brcmf_flowring_reinsert(flow, flowid, skb); | |
720 | break; | |
721 | } | |
722 | count++; | |
723 | ||
724 | tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr; | |
725 | ||
726 | tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST; | |
727 | tx_msghdr->msg.request_id = cpu_to_le32(pktid); | |
728 | tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid); | |
729 | tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3; | |
730 | tx_msghdr->flags |= (skb->priority & 0x07) << | |
731 | BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT; | |
732 | tx_msghdr->seg_cnt = 1; | |
733 | memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN); | |
734 | tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN); | |
83297aaa | 735 | address = (u64)physaddr; |
9a1bb602 HM |
736 | tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32); |
737 | tx_msghdr->data_buf_addr.low_addr = | |
738 | cpu_to_le32(address & 0xffffffff); | |
739 | tx_msghdr->metadata_buf_len = 0; | |
740 | tx_msghdr->metadata_buf_addr.high_addr = 0; | |
741 | tx_msghdr->metadata_buf_addr.low_addr = 0; | |
5ef1e604 | 742 | atomic_inc(&commonring->outstanding_tx); |
9a1bb602 HM |
743 | if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) { |
744 | brcmf_commonring_write_complete(commonring); | |
745 | count = 0; | |
746 | } | |
747 | } | |
748 | if (count) | |
749 | brcmf_commonring_write_complete(commonring); | |
750 | brcmf_commonring_unlock(commonring); | |
751 | } | |
752 | ||
753 | ||
754 | static void brcmf_msgbuf_txflow_worker(struct work_struct *worker) | |
755 | { | |
756 | struct brcmf_msgbuf *msgbuf; | |
757 | u32 flowid; | |
758 | ||
759 | msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work); | |
760 | for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->nrof_flowrings) { | |
761 | clear_bit(flowid, msgbuf->flow_map); | |
762 | brcmf_msgbuf_txflow(msgbuf, flowid); | |
763 | } | |
764 | } | |
765 | ||
766 | ||
5ef1e604 HM |
767 | static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid, |
768 | bool force) | |
9a1bb602 | 769 | { |
5ef1e604 HM |
770 | struct brcmf_commonring *commonring; |
771 | ||
9a1bb602 | 772 | set_bit(flowid, msgbuf->flow_map); |
5ef1e604 HM |
773 | commonring = msgbuf->flowrings[flowid]; |
774 | if ((force) || (atomic_read(&commonring->outstanding_tx) < | |
775 | BRCMF_MSGBUF_DELAY_TXWORKER_THRS)) | |
776 | queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work); | |
9a1bb602 HM |
777 | |
778 | return 0; | |
779 | } | |
780 | ||
781 | ||
782 | static int brcmf_msgbuf_txdata(struct brcmf_pub *drvr, int ifidx, | |
783 | u8 offset, struct sk_buff *skb) | |
784 | { | |
785 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
786 | struct brcmf_flowring *flow = msgbuf->flow; | |
787 | struct ethhdr *eh = (struct ethhdr *)(skb->data); | |
788 | u32 flowid; | |
464a5f3f HM |
789 | u32 queue_count; |
790 | bool force; | |
9a1bb602 HM |
791 | |
792 | flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx); | |
793 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { | |
794 | flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb); | |
795 | if (flowid == BRCMF_FLOWRING_INVALID_ID) | |
796 | return -ENOMEM; | |
797 | } | |
464a5f3f HM |
798 | queue_count = brcmf_flowring_enqueue(flow, flowid, skb); |
799 | force = ((queue_count % BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) == 0); | |
800 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, force); | |
9a1bb602 HM |
801 | |
802 | return 0; | |
803 | } | |
804 | ||
805 | ||
806 | static void | |
807 | brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx, | |
808 | enum proto_addr_mode addr_mode) | |
809 | { | |
810 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
811 | ||
812 | brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode); | |
813 | } | |
814 | ||
815 | ||
816 | static void | |
817 | brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) | |
818 | { | |
819 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
820 | ||
821 | brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer); | |
822 | } | |
823 | ||
824 | ||
70b7d94b HM |
825 | static void |
826 | brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) | |
827 | { | |
828 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
829 | ||
830 | brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer); | |
831 | } | |
832 | ||
833 | ||
9a1bb602 HM |
834 | static void |
835 | brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf) | |
836 | { | |
837 | struct msgbuf_ioctl_resp_hdr *ioctl_resp; | |
838 | ||
839 | ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf; | |
840 | ||
ff0a6230 HM |
841 | msgbuf->ioctl_resp_status = |
842 | (s16)le16_to_cpu(ioctl_resp->compl_hdr.status); | |
9a1bb602 HM |
843 | msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len); |
844 | msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id); | |
845 | ||
846 | brcmf_msgbuf_ioctl_resp_wake(msgbuf); | |
847 | ||
848 | if (msgbuf->cur_ioctlrespbuf) | |
849 | msgbuf->cur_ioctlrespbuf--; | |
850 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); | |
851 | } | |
852 | ||
853 | ||
854 | static void | |
855 | brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf) | |
856 | { | |
5ef1e604 | 857 | struct brcmf_commonring *commonring; |
9a1bb602 HM |
858 | struct msgbuf_tx_status *tx_status; |
859 | u32 idx; | |
860 | struct sk_buff *skb; | |
861 | u16 flowid; | |
862 | ||
863 | tx_status = (struct msgbuf_tx_status *)buf; | |
864 | idx = le32_to_cpu(tx_status->msg.request_id); | |
865 | flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id); | |
866 | flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS; | |
867 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
868 | msgbuf->tx_pktids, idx); | |
7d072b40 | 869 | if (!skb) |
9a1bb602 | 870 | return; |
9a1bb602 HM |
871 | |
872 | set_bit(flowid, msgbuf->txstatus_done_map); | |
5ef1e604 HM |
873 | commonring = msgbuf->flowrings[flowid]; |
874 | atomic_dec(&commonring->outstanding_tx); | |
9a1bb602 HM |
875 | |
876 | brcmf_txfinalize(msgbuf->drvr, skb, tx_status->msg.ifidx, true); | |
877 | } | |
878 | ||
879 | ||
880 | static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count) | |
881 | { | |
882 | struct brcmf_commonring *commonring; | |
883 | void *ret_ptr; | |
884 | struct sk_buff *skb; | |
885 | u16 alloced; | |
886 | u32 pktlen; | |
887 | dma_addr_t physaddr; | |
888 | struct msgbuf_rx_bufpost *rx_bufpost; | |
83297aaa | 889 | u64 address; |
9a1bb602 HM |
890 | u32 pktid; |
891 | u32 i; | |
892 | ||
893 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; | |
894 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, | |
895 | count, | |
896 | &alloced); | |
897 | if (!ret_ptr) { | |
d2e2472c | 898 | brcmf_dbg(MSGBUF, "Failed to reserve space in commonring\n"); |
9a1bb602 HM |
899 | return 0; |
900 | } | |
901 | ||
902 | for (i = 0; i < alloced; i++) { | |
903 | rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr; | |
904 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); | |
905 | ||
906 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); | |
907 | ||
908 | if (skb == NULL) { | |
909 | brcmf_err("Failed to alloc SKB\n"); | |
910 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
911 | break; | |
912 | } | |
913 | ||
914 | pktlen = skb->len; | |
915 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
916 | msgbuf->rx_pktids, skb, 0, | |
917 | &physaddr, &pktid)) { | |
918 | dev_kfree_skb_any(skb); | |
919 | brcmf_err("No PKTID available !!\n"); | |
920 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
921 | break; | |
922 | } | |
923 | ||
924 | if (msgbuf->rx_metadata_offset) { | |
83297aaa | 925 | address = (u64)physaddr; |
9a1bb602 HM |
926 | rx_bufpost->metadata_buf_len = |
927 | cpu_to_le16(msgbuf->rx_metadata_offset); | |
928 | rx_bufpost->metadata_buf_addr.high_addr = | |
929 | cpu_to_le32(address >> 32); | |
930 | rx_bufpost->metadata_buf_addr.low_addr = | |
931 | cpu_to_le32(address & 0xffffffff); | |
932 | ||
933 | skb_pull(skb, msgbuf->rx_metadata_offset); | |
934 | pktlen = skb->len; | |
935 | physaddr += msgbuf->rx_metadata_offset; | |
936 | } | |
937 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST; | |
938 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); | |
939 | ||
83297aaa | 940 | address = (u64)physaddr; |
9a1bb602 HM |
941 | rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen); |
942 | rx_bufpost->data_buf_addr.high_addr = | |
943 | cpu_to_le32(address >> 32); | |
944 | rx_bufpost->data_buf_addr.low_addr = | |
945 | cpu_to_le32(address & 0xffffffff); | |
946 | ||
947 | ret_ptr += brcmf_commonring_len_item(commonring); | |
948 | } | |
949 | ||
950 | if (i) | |
951 | brcmf_commonring_write_complete(commonring); | |
952 | ||
953 | return i; | |
954 | } | |
955 | ||
956 | ||
957 | static void | |
958 | brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf) | |
959 | { | |
960 | u32 fillbufs; | |
961 | u32 retcount; | |
962 | ||
963 | fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost; | |
964 | ||
965 | while (fillbufs) { | |
966 | retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs); | |
967 | if (!retcount) | |
968 | break; | |
969 | msgbuf->rxbufpost += retcount; | |
970 | fillbufs -= retcount; | |
971 | } | |
972 | } | |
973 | ||
974 | ||
975 | static void | |
976 | brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt) | |
977 | { | |
978 | msgbuf->rxbufpost -= rxcnt; | |
979 | if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost - | |
980 | BRCMF_MSGBUF_RXBUFPOST_THRESHOLD)) | |
981 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); | |
982 | } | |
983 | ||
984 | ||
985 | static u32 | |
986 | brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf, | |
987 | u32 count) | |
988 | { | |
989 | struct brcmf_commonring *commonring; | |
990 | void *ret_ptr; | |
991 | struct sk_buff *skb; | |
992 | u16 alloced; | |
993 | u32 pktlen; | |
994 | dma_addr_t physaddr; | |
995 | struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost; | |
83297aaa | 996 | u64 address; |
9a1bb602 HM |
997 | u32 pktid; |
998 | u32 i; | |
999 | ||
1000 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1001 | brcmf_commonring_lock(commonring); | |
1002 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, | |
1003 | count, | |
1004 | &alloced); | |
1005 | if (!ret_ptr) { | |
1006 | brcmf_err("Failed to reserve space in commonring\n"); | |
1007 | brcmf_commonring_unlock(commonring); | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | for (i = 0; i < alloced; i++) { | |
1012 | rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr; | |
1013 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); | |
1014 | ||
1015 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); | |
1016 | ||
1017 | if (skb == NULL) { | |
1018 | brcmf_err("Failed to alloc SKB\n"); | |
1019 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
1020 | break; | |
1021 | } | |
1022 | ||
1023 | pktlen = skb->len; | |
1024 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
1025 | msgbuf->rx_pktids, skb, 0, | |
1026 | &physaddr, &pktid)) { | |
1027 | dev_kfree_skb_any(skb); | |
1028 | brcmf_err("No PKTID available !!\n"); | |
1029 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
1030 | break; | |
1031 | } | |
1032 | if (event_buf) | |
1033 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST; | |
1034 | else | |
1035 | rx_bufpost->msg.msgtype = | |
1036 | MSGBUF_TYPE_IOCTLRESP_BUF_POST; | |
1037 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); | |
1038 | ||
83297aaa | 1039 | address = (u64)physaddr; |
9a1bb602 HM |
1040 | rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen); |
1041 | rx_bufpost->host_buf_addr.high_addr = | |
1042 | cpu_to_le32(address >> 32); | |
1043 | rx_bufpost->host_buf_addr.low_addr = | |
1044 | cpu_to_le32(address & 0xffffffff); | |
1045 | ||
1046 | ret_ptr += brcmf_commonring_len_item(commonring); | |
1047 | } | |
1048 | ||
1049 | if (i) | |
1050 | brcmf_commonring_write_complete(commonring); | |
1051 | ||
1052 | brcmf_commonring_unlock(commonring); | |
1053 | ||
1054 | return i; | |
1055 | } | |
1056 | ||
1057 | ||
1058 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf) | |
1059 | { | |
1060 | u32 count; | |
1061 | ||
1062 | count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf; | |
1063 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count); | |
1064 | msgbuf->cur_ioctlrespbuf += count; | |
1065 | } | |
1066 | ||
1067 | ||
1068 | static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf) | |
1069 | { | |
1070 | u32 count; | |
1071 | ||
1072 | count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf; | |
1073 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count); | |
1074 | msgbuf->cur_eventbuf += count; | |
1075 | } | |
1076 | ||
1077 | ||
1078 | static void | |
1079 | brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb, | |
1080 | u8 ifidx) | |
1081 | { | |
1082 | struct brcmf_if *ifp; | |
1083 | ||
75effb03 | 1084 | ifp = brcmf_get_ifp(msgbuf->drvr, ifidx); |
796cfb65 | 1085 | if (!ifp || !ifp->ndev) { |
94a61208 | 1086 | brcmf_err("Received pkt for invalid ifidx %d\n", ifidx); |
9a1bb602 HM |
1087 | brcmu_pkt_buf_free_skb(skb); |
1088 | return; | |
1089 | } | |
1090 | brcmf_netif_rx(ifp, skb); | |
1091 | } | |
1092 | ||
1093 | ||
1094 | static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) | |
1095 | { | |
1096 | struct msgbuf_rx_event *event; | |
1097 | u32 idx; | |
1098 | u16 buflen; | |
1099 | struct sk_buff *skb; | |
1100 | ||
1101 | event = (struct msgbuf_rx_event *)buf; | |
1102 | idx = le32_to_cpu(event->msg.request_id); | |
1103 | buflen = le16_to_cpu(event->event_data_len); | |
1104 | ||
1105 | if (msgbuf->cur_eventbuf) | |
1106 | msgbuf->cur_eventbuf--; | |
1107 | brcmf_msgbuf_rxbuf_event_post(msgbuf); | |
1108 | ||
1109 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
1110 | msgbuf->rx_pktids, idx); | |
1111 | if (!skb) | |
1112 | return; | |
1113 | ||
1114 | if (msgbuf->rx_dataoffset) | |
1115 | skb_pull(skb, msgbuf->rx_dataoffset); | |
1116 | ||
1117 | skb_trim(skb, buflen); | |
1118 | ||
1119 | brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx); | |
1120 | } | |
1121 | ||
1122 | ||
1123 | static void | |
1124 | brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) | |
1125 | { | |
1126 | struct msgbuf_rx_complete *rx_complete; | |
1127 | struct sk_buff *skb; | |
1128 | u16 data_offset; | |
1129 | u16 buflen; | |
1130 | u32 idx; | |
1131 | ||
1132 | brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1); | |
1133 | ||
1134 | rx_complete = (struct msgbuf_rx_complete *)buf; | |
1135 | data_offset = le16_to_cpu(rx_complete->data_offset); | |
1136 | buflen = le16_to_cpu(rx_complete->data_len); | |
1137 | idx = le32_to_cpu(rx_complete->msg.request_id); | |
1138 | ||
1139 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
1140 | msgbuf->rx_pktids, idx); | |
7d072b40 AS |
1141 | if (!skb) |
1142 | return; | |
9a1bb602 HM |
1143 | |
1144 | if (data_offset) | |
1145 | skb_pull(skb, data_offset); | |
1146 | else if (msgbuf->rx_dataoffset) | |
1147 | skb_pull(skb, msgbuf->rx_dataoffset); | |
1148 | ||
1149 | skb_trim(skb, buflen); | |
1150 | ||
1151 | brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx); | |
1152 | } | |
1153 | ||
1154 | ||
1155 | static void | |
1156 | brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf, | |
1157 | void *buf) | |
1158 | { | |
1159 | struct msgbuf_flowring_create_resp *flowring_create_resp; | |
1160 | u16 status; | |
1161 | u16 flowid; | |
1162 | ||
1163 | flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf; | |
1164 | ||
1165 | flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id); | |
1166 | flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS; | |
1167 | status = le16_to_cpu(flowring_create_resp->compl_hdr.status); | |
1168 | ||
1169 | if (status) { | |
1170 | brcmf_err("Flowring creation failed, code %d\n", status); | |
1171 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1172 | return; | |
1173 | } | |
1174 | brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid, | |
1175 | status); | |
1176 | ||
1177 | brcmf_flowring_open(msgbuf->flow, flowid); | |
1178 | ||
5ef1e604 | 1179 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); |
9a1bb602 HM |
1180 | } |
1181 | ||
1182 | ||
1183 | static void | |
1184 | brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf, | |
1185 | void *buf) | |
1186 | { | |
1187 | struct msgbuf_flowring_delete_resp *flowring_delete_resp; | |
1188 | u16 status; | |
1189 | u16 flowid; | |
1190 | ||
1191 | flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf; | |
1192 | ||
1193 | flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id); | |
1194 | flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS; | |
1195 | status = le16_to_cpu(flowring_delete_resp->compl_hdr.status); | |
1196 | ||
1197 | if (status) { | |
1198 | brcmf_err("Flowring deletion failed, code %d\n", status); | |
1199 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
1200 | return; | |
1201 | } | |
1202 | brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid, | |
1203 | status); | |
1204 | ||
1205 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1206 | } | |
1207 | ||
1208 | ||
1209 | static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf) | |
1210 | { | |
1211 | struct msgbuf_common_hdr *msg; | |
1212 | ||
1213 | msg = (struct msgbuf_common_hdr *)buf; | |
1214 | switch (msg->msgtype) { | |
1215 | case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT: | |
1216 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n"); | |
1217 | brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf); | |
1218 | break; | |
1219 | case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT: | |
1220 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n"); | |
1221 | brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf); | |
1222 | break; | |
1223 | case MSGBUF_TYPE_IOCTLPTR_REQ_ACK: | |
1224 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n"); | |
1225 | break; | |
1226 | case MSGBUF_TYPE_IOCTL_CMPLT: | |
1227 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n"); | |
1228 | brcmf_msgbuf_process_ioctl_complete(msgbuf, buf); | |
1229 | break; | |
1230 | case MSGBUF_TYPE_WL_EVENT: | |
1231 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n"); | |
1232 | brcmf_msgbuf_process_event(msgbuf, buf); | |
1233 | break; | |
1234 | case MSGBUF_TYPE_TX_STATUS: | |
1235 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n"); | |
1236 | brcmf_msgbuf_process_txstatus(msgbuf, buf); | |
1237 | break; | |
1238 | case MSGBUF_TYPE_RX_CMPLT: | |
1239 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n"); | |
1240 | brcmf_msgbuf_process_rx_complete(msgbuf, buf); | |
1241 | break; | |
1242 | default: | |
1243 | brcmf_err("Unsupported msgtype %d\n", msg->msgtype); | |
1244 | break; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | ||
1249 | static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf, | |
1250 | struct brcmf_commonring *commonring) | |
1251 | { | |
1252 | void *buf; | |
1253 | u16 count; | |
df738c2f | 1254 | u16 processed; |
9a1bb602 HM |
1255 | |
1256 | again: | |
1257 | buf = brcmf_commonring_get_read_ptr(commonring, &count); | |
1258 | if (buf == NULL) | |
1259 | return; | |
1260 | ||
df738c2f | 1261 | processed = 0; |
9a1bb602 HM |
1262 | while (count) { |
1263 | brcmf_msgbuf_process_msgtype(msgbuf, | |
1264 | buf + msgbuf->rx_dataoffset); | |
1265 | buf += brcmf_commonring_len_item(commonring); | |
df738c2f HM |
1266 | processed++; |
1267 | if (processed == BRCMF_MSGBUF_UPDATE_RX_PTR_THRS) { | |
1268 | brcmf_commonring_read_complete(commonring, processed); | |
1269 | processed = 0; | |
1270 | } | |
9a1bb602 HM |
1271 | count--; |
1272 | } | |
df738c2f HM |
1273 | if (processed) |
1274 | brcmf_commonring_read_complete(commonring, processed); | |
9a1bb602 HM |
1275 | |
1276 | if (commonring->r_ptr == 0) | |
1277 | goto again; | |
1278 | } | |
1279 | ||
1280 | ||
1281 | int brcmf_proto_msgbuf_rx_trigger(struct device *dev) | |
1282 | { | |
1283 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1284 | struct brcmf_pub *drvr = bus_if->drvr; | |
1285 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
5ef1e604 | 1286 | struct brcmf_commonring *commonring; |
9a1bb602 HM |
1287 | void *buf; |
1288 | u32 flowid; | |
5ef1e604 | 1289 | int qlen; |
9a1bb602 HM |
1290 | |
1291 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; | |
1292 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1293 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; | |
1294 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1295 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; | |
1296 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1297 | ||
1298 | for_each_set_bit(flowid, msgbuf->txstatus_done_map, | |
1299 | msgbuf->nrof_flowrings) { | |
1300 | clear_bit(flowid, msgbuf->txstatus_done_map); | |
5ef1e604 HM |
1301 | commonring = msgbuf->flowrings[flowid]; |
1302 | qlen = brcmf_flowring_qlen(msgbuf->flow, flowid); | |
1303 | if ((qlen > BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) || | |
1304 | ((qlen) && (atomic_read(&commonring->outstanding_tx) < | |
1305 | BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS))) | |
1306 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); | |
9a1bb602 HM |
1307 | } |
1308 | ||
1309 | return 0; | |
1310 | } | |
1311 | ||
1312 | ||
1313 | void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid) | |
1314 | { | |
1315 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
1316 | struct msgbuf_tx_flowring_delete_req *delete; | |
1317 | struct brcmf_commonring *commonring; | |
1318 | void *ret_ptr; | |
1319 | u8 ifidx; | |
1320 | int err; | |
1321 | ||
1322 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1323 | brcmf_commonring_lock(commonring); | |
1324 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
1325 | if (!ret_ptr) { | |
1326 | brcmf_err("FW unaware, flowring will be removed !!\n"); | |
1327 | brcmf_commonring_unlock(commonring); | |
1328 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1329 | return; | |
1330 | } | |
1331 | ||
1332 | delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr; | |
1333 | ||
1334 | ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid); | |
1335 | ||
1336 | delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE; | |
1337 | delete->msg.ifidx = ifidx; | |
1338 | delete->msg.request_id = 0; | |
1339 | ||
1340 | delete->flow_ring_id = cpu_to_le16(flowid + | |
1341 | BRCMF_NROF_H2D_COMMON_MSGRINGS); | |
1342 | delete->reason = 0; | |
1343 | ||
1344 | brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n", | |
1345 | flowid, ifidx); | |
1346 | ||
1347 | err = brcmf_commonring_write_complete(commonring); | |
1348 | brcmf_commonring_unlock(commonring); | |
1349 | if (err) { | |
1350 | brcmf_err("Failed to submit RING_DELETE, flowring will be removed\n"); | |
1351 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1352 | } | |
1353 | } | |
1354 | ||
2bb66a81 FL |
1355 | #ifdef DEBUG |
1356 | static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) | |
1357 | { | |
1358 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); | |
1359 | struct brcmf_pub *drvr = bus_if->drvr; | |
1360 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
1361 | struct brcmf_commonring *commonring; | |
1362 | u16 i; | |
1363 | struct brcmf_flowring_ring *ring; | |
1364 | struct brcmf_flowring_hash *hash; | |
1365 | ||
1366 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1367 | seq_printf(seq, "h2d_ctl_submit: rp %4u, wp %4u, depth %4u\n", | |
1368 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1369 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; | |
1370 | seq_printf(seq, "h2d_rx_submit: rp %4u, wp %4u, depth %4u\n", | |
1371 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1372 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; | |
1373 | seq_printf(seq, "d2h_ctl_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1374 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1375 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; | |
1376 | seq_printf(seq, "d2h_tx_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1377 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1378 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; | |
1379 | seq_printf(seq, "d2h_rx_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1380 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1381 | ||
1382 | seq_printf(seq, "\nh2d_flowrings: depth %u\n", | |
1383 | BRCMF_H2D_TXFLOWRING_MAX_ITEM); | |
1384 | seq_puts(seq, "Active flowrings:\n"); | |
1385 | hash = msgbuf->flow->hash; | |
1386 | for (i = 0; i < msgbuf->flow->nrofrings; i++) { | |
1387 | if (!msgbuf->flow->rings[i]) | |
1388 | continue; | |
1389 | ring = msgbuf->flow->rings[i]; | |
1390 | if (ring->status != RING_OPEN) | |
1391 | continue; | |
1392 | commonring = msgbuf->flowrings[i]; | |
1393 | hash = &msgbuf->flow->hash[ring->hash_id]; | |
1394 | seq_printf(seq, "id %3u: rp %4u, wp %4u, qlen %4u, blocked %u\n" | |
1395 | " ifidx %u, fifo %u, da %pM\n", | |
1396 | i, commonring->r_ptr, commonring->w_ptr, | |
1397 | skb_queue_len(&ring->skblist), ring->blocked, | |
1398 | hash->ifidx, hash->fifo, hash->mac); | |
1399 | } | |
1400 | ||
1401 | return 0; | |
1402 | } | |
1403 | #else | |
1404 | static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) | |
1405 | { | |
1406 | return 0; | |
1407 | } | |
1408 | #endif | |
9a1bb602 HM |
1409 | |
1410 | int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) | |
1411 | { | |
1412 | struct brcmf_bus_msgbuf *if_msgbuf; | |
1413 | struct brcmf_msgbuf *msgbuf; | |
83297aaa | 1414 | u64 address; |
9a1bb602 HM |
1415 | u32 count; |
1416 | ||
1417 | if_msgbuf = drvr->bus_if->msgbuf; | |
3ba06610 | 1418 | msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL); |
9a1bb602 HM |
1419 | if (!msgbuf) |
1420 | goto fail; | |
1421 | ||
1422 | msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow"); | |
1423 | if (msgbuf->txflow_wq == NULL) { | |
1424 | brcmf_err("workqueue creation failed\n"); | |
1425 | goto fail; | |
1426 | } | |
1427 | INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker); | |
1428 | count = BITS_TO_LONGS(if_msgbuf->nrof_flowrings); | |
333c2aa0 | 1429 | count = count * sizeof(unsigned long); |
3ba06610 | 1430 | msgbuf->flow_map = kzalloc(count, GFP_KERNEL); |
9a1bb602 HM |
1431 | if (!msgbuf->flow_map) |
1432 | goto fail; | |
1433 | ||
3ba06610 | 1434 | msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL); |
9a1bb602 HM |
1435 | if (!msgbuf->txstatus_done_map) |
1436 | goto fail; | |
1437 | ||
1438 | msgbuf->drvr = drvr; | |
1439 | msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev, | |
1440 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1441 | &msgbuf->ioctbuf_handle, | |
3ba06610 | 1442 | GFP_KERNEL); |
9a1bb602 HM |
1443 | if (!msgbuf->ioctbuf) |
1444 | goto fail; | |
83297aaa | 1445 | address = (u64)msgbuf->ioctbuf_handle; |
9a1bb602 HM |
1446 | msgbuf->ioctbuf_phys_hi = address >> 32; |
1447 | msgbuf->ioctbuf_phys_lo = address & 0xffffffff; | |
1448 | ||
1449 | drvr->proto->hdrpull = brcmf_msgbuf_hdrpull; | |
1450 | drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd; | |
1451 | drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd; | |
1452 | drvr->proto->txdata = brcmf_msgbuf_txdata; | |
1453 | drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode; | |
1454 | drvr->proto->delete_peer = brcmf_msgbuf_delete_peer; | |
70b7d94b | 1455 | drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer; |
9a1bb602 HM |
1456 | drvr->proto->pd = msgbuf; |
1457 | ||
1458 | init_waitqueue_head(&msgbuf->ioctl_resp_wait); | |
1459 | ||
1460 | msgbuf->commonrings = | |
1461 | (struct brcmf_commonring **)if_msgbuf->commonrings; | |
1462 | msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings; | |
1463 | msgbuf->nrof_flowrings = if_msgbuf->nrof_flowrings; | |
1464 | msgbuf->flowring_dma_handle = kzalloc(msgbuf->nrof_flowrings * | |
3ba06610 | 1465 | sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL); |
2d116b88 AS |
1466 | if (!msgbuf->flowring_dma_handle) |
1467 | goto fail; | |
9a1bb602 HM |
1468 | |
1469 | msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset; | |
1470 | msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost; | |
1471 | ||
1472 | msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST; | |
1473 | msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST; | |
1474 | ||
1475 | msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS, | |
1476 | DMA_TO_DEVICE); | |
1477 | if (!msgbuf->tx_pktids) | |
1478 | goto fail; | |
1479 | msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS, | |
1480 | DMA_FROM_DEVICE); | |
1481 | if (!msgbuf->rx_pktids) | |
1482 | goto fail; | |
1483 | ||
1484 | msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev, | |
1485 | if_msgbuf->nrof_flowrings); | |
1486 | if (!msgbuf->flow) | |
1487 | goto fail; | |
1488 | ||
1489 | ||
1490 | brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n", | |
1491 | msgbuf->max_rxbufpost, msgbuf->max_eventbuf, | |
1492 | msgbuf->max_ioctlrespbuf); | |
1493 | count = 0; | |
1494 | do { | |
1495 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); | |
1496 | if (msgbuf->max_rxbufpost != msgbuf->rxbufpost) | |
1497 | msleep(10); | |
1498 | else | |
1499 | break; | |
1500 | count++; | |
1501 | } while (count < 10); | |
1502 | brcmf_msgbuf_rxbuf_event_post(msgbuf); | |
1503 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); | |
1504 | ||
3ba06610 HM |
1505 | INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker); |
1506 | spin_lock_init(&msgbuf->flowring_work_lock); | |
1507 | INIT_LIST_HEAD(&msgbuf->work_queue); | |
1508 | ||
2bb66a81 FL |
1509 | brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read); |
1510 | ||
9a1bb602 HM |
1511 | return 0; |
1512 | ||
1513 | fail: | |
1514 | if (msgbuf) { | |
1515 | kfree(msgbuf->flow_map); | |
1516 | kfree(msgbuf->txstatus_done_map); | |
1517 | brcmf_msgbuf_release_pktids(msgbuf); | |
2d116b88 | 1518 | kfree(msgbuf->flowring_dma_handle); |
9a1bb602 HM |
1519 | if (msgbuf->ioctbuf) |
1520 | dma_free_coherent(drvr->bus_if->dev, | |
1521 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1522 | msgbuf->ioctbuf, | |
1523 | msgbuf->ioctbuf_handle); | |
1524 | kfree(msgbuf); | |
1525 | } | |
1526 | return -ENOMEM; | |
1527 | } | |
1528 | ||
1529 | ||
1530 | void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr) | |
1531 | { | |
1532 | struct brcmf_msgbuf *msgbuf; | |
3ba06610 | 1533 | struct brcmf_msgbuf_work_item *work; |
9a1bb602 HM |
1534 | |
1535 | brcmf_dbg(TRACE, "Enter\n"); | |
1536 | if (drvr->proto->pd) { | |
1537 | msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
3ba06610 HM |
1538 | cancel_work_sync(&msgbuf->flowring_work); |
1539 | while (!list_empty(&msgbuf->work_queue)) { | |
1540 | work = list_first_entry(&msgbuf->work_queue, | |
1541 | struct brcmf_msgbuf_work_item, | |
1542 | queue); | |
1543 | list_del(&work->queue); | |
1544 | kfree(work); | |
1545 | } | |
9a1bb602 HM |
1546 | kfree(msgbuf->flow_map); |
1547 | kfree(msgbuf->txstatus_done_map); | |
1548 | if (msgbuf->txflow_wq) | |
1549 | destroy_workqueue(msgbuf->txflow_wq); | |
1550 | ||
1551 | brcmf_flowring_detach(msgbuf->flow); | |
1552 | dma_free_coherent(drvr->bus_if->dev, | |
1553 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1554 | msgbuf->ioctbuf, msgbuf->ioctbuf_handle); | |
1555 | brcmf_msgbuf_release_pktids(msgbuf); | |
2d116b88 | 1556 | kfree(msgbuf->flowring_dma_handle); |
9a1bb602 HM |
1557 | kfree(msgbuf); |
1558 | drvr->proto->pd = NULL; | |
1559 | } | |
1560 | } |