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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> | |
c56caa9d | 23 | #include <linux/etherdevice.h> |
9a1bb602 HM |
24 | |
25 | #include <brcmu_utils.h> | |
26 | #include <brcmu_wifi.h> | |
27 | ||
122d3d04 | 28 | #include "core.h" |
a8e8ed34 | 29 | #include "debug.h" |
9a1bb602 HM |
30 | #include "proto.h" |
31 | #include "msgbuf.h" | |
32 | #include "commonring.h" | |
33 | #include "flowring.h" | |
d14f78b9 | 34 | #include "bus.h" |
9a1bb602 HM |
35 | #include "tracepoint.h" |
36 | ||
37 | ||
63ce3d5d | 38 | #define MSGBUF_IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000) |
9a1bb602 HM |
39 | |
40 | #define MSGBUF_TYPE_GEN_STATUS 0x1 | |
41 | #define MSGBUF_TYPE_RING_STATUS 0x2 | |
42 | #define MSGBUF_TYPE_FLOW_RING_CREATE 0x3 | |
43 | #define MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT 0x4 | |
44 | #define MSGBUF_TYPE_FLOW_RING_DELETE 0x5 | |
45 | #define MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT 0x6 | |
46 | #define MSGBUF_TYPE_FLOW_RING_FLUSH 0x7 | |
47 | #define MSGBUF_TYPE_FLOW_RING_FLUSH_CMPLT 0x8 | |
48 | #define MSGBUF_TYPE_IOCTLPTR_REQ 0x9 | |
49 | #define MSGBUF_TYPE_IOCTLPTR_REQ_ACK 0xA | |
50 | #define MSGBUF_TYPE_IOCTLRESP_BUF_POST 0xB | |
51 | #define MSGBUF_TYPE_IOCTL_CMPLT 0xC | |
52 | #define MSGBUF_TYPE_EVENT_BUF_POST 0xD | |
53 | #define MSGBUF_TYPE_WL_EVENT 0xE | |
54 | #define MSGBUF_TYPE_TX_POST 0xF | |
55 | #define MSGBUF_TYPE_TX_STATUS 0x10 | |
56 | #define MSGBUF_TYPE_RXBUF_POST 0x11 | |
57 | #define MSGBUF_TYPE_RX_CMPLT 0x12 | |
58 | #define MSGBUF_TYPE_LPBK_DMAXFER 0x13 | |
59 | #define MSGBUF_TYPE_LPBK_DMAXFER_CMPLT 0x14 | |
60 | ||
61 | #define NR_TX_PKTIDS 2048 | |
62 | #define NR_RX_PKTIDS 1024 | |
63 | ||
64 | #define BRCMF_IOCTL_REQ_PKTID 0xFFFE | |
65 | ||
66 | #define BRCMF_MSGBUF_MAX_PKT_SIZE 2048 | |
67 | #define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD 32 | |
68 | #define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST 8 | |
69 | #define BRCMF_MSGBUF_MAX_EVENTBUF_POST 8 | |
70 | ||
71 | #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3 0x01 | |
72 | #define BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT 5 | |
73 | ||
74 | #define BRCMF_MSGBUF_TX_FLUSH_CNT1 32 | |
75 | #define BRCMF_MSGBUF_TX_FLUSH_CNT2 96 | |
76 | ||
464a5f3f | 77 | #define BRCMF_MSGBUF_DELAY_TXWORKER_THRS 96 |
5ef1e604 | 78 | #define BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS 32 |
df738c2f HM |
79 | #define BRCMF_MSGBUF_UPDATE_RX_PTR_THRS 48 |
80 | ||
9a1bb602 HM |
81 | |
82 | struct msgbuf_common_hdr { | |
83 | u8 msgtype; | |
84 | u8 ifidx; | |
85 | u8 flags; | |
86 | u8 rsvd0; | |
87 | __le32 request_id; | |
88 | }; | |
89 | ||
9a1bb602 HM |
90 | struct msgbuf_ioctl_req_hdr { |
91 | struct msgbuf_common_hdr msg; | |
92 | __le32 cmd; | |
93 | __le16 trans_id; | |
94 | __le16 input_buf_len; | |
95 | __le16 output_buf_len; | |
96 | __le16 rsvd0[3]; | |
97 | struct msgbuf_buf_addr req_buf_addr; | |
98 | __le32 rsvd1[2]; | |
99 | }; | |
100 | ||
101 | struct msgbuf_tx_msghdr { | |
102 | struct msgbuf_common_hdr msg; | |
103 | u8 txhdr[ETH_HLEN]; | |
104 | u8 flags; | |
105 | u8 seg_cnt; | |
106 | struct msgbuf_buf_addr metadata_buf_addr; | |
107 | struct msgbuf_buf_addr data_buf_addr; | |
108 | __le16 metadata_buf_len; | |
109 | __le16 data_len; | |
110 | __le32 rsvd0; | |
111 | }; | |
112 | ||
113 | struct msgbuf_rx_bufpost { | |
114 | struct msgbuf_common_hdr msg; | |
115 | __le16 metadata_buf_len; | |
116 | __le16 data_buf_len; | |
117 | __le32 rsvd0; | |
118 | struct msgbuf_buf_addr metadata_buf_addr; | |
119 | struct msgbuf_buf_addr data_buf_addr; | |
120 | }; | |
121 | ||
122 | struct msgbuf_rx_ioctl_resp_or_event { | |
123 | struct msgbuf_common_hdr msg; | |
124 | __le16 host_buf_len; | |
125 | __le16 rsvd0[3]; | |
126 | struct msgbuf_buf_addr host_buf_addr; | |
127 | __le32 rsvd1[4]; | |
128 | }; | |
129 | ||
130 | struct msgbuf_completion_hdr { | |
131 | __le16 status; | |
132 | __le16 flow_ring_id; | |
133 | }; | |
134 | ||
135 | struct msgbuf_rx_event { | |
136 | struct msgbuf_common_hdr msg; | |
137 | struct msgbuf_completion_hdr compl_hdr; | |
138 | __le16 event_data_len; | |
139 | __le16 seqnum; | |
140 | __le16 rsvd0[4]; | |
141 | }; | |
142 | ||
143 | struct msgbuf_ioctl_resp_hdr { | |
144 | struct msgbuf_common_hdr msg; | |
145 | struct msgbuf_completion_hdr compl_hdr; | |
146 | __le16 resp_len; | |
147 | __le16 trans_id; | |
148 | __le32 cmd; | |
149 | __le32 rsvd0; | |
150 | }; | |
151 | ||
152 | struct msgbuf_tx_status { | |
153 | struct msgbuf_common_hdr msg; | |
154 | struct msgbuf_completion_hdr compl_hdr; | |
155 | __le16 metadata_len; | |
156 | __le16 tx_status; | |
157 | }; | |
158 | ||
159 | struct msgbuf_rx_complete { | |
160 | struct msgbuf_common_hdr msg; | |
161 | struct msgbuf_completion_hdr compl_hdr; | |
162 | __le16 metadata_len; | |
163 | __le16 data_len; | |
164 | __le16 data_offset; | |
165 | __le16 flags; | |
166 | __le32 rx_status_0; | |
167 | __le32 rx_status_1; | |
168 | __le32 rsvd0; | |
169 | }; | |
170 | ||
171 | struct msgbuf_tx_flowring_create_req { | |
172 | struct msgbuf_common_hdr msg; | |
173 | u8 da[ETH_ALEN]; | |
174 | u8 sa[ETH_ALEN]; | |
175 | u8 tid; | |
176 | u8 if_flags; | |
177 | __le16 flow_ring_id; | |
178 | u8 tc; | |
179 | u8 priority; | |
180 | __le16 int_vector; | |
181 | __le16 max_items; | |
182 | __le16 len_item; | |
183 | struct msgbuf_buf_addr flow_ring_addr; | |
184 | }; | |
185 | ||
186 | struct msgbuf_tx_flowring_delete_req { | |
187 | struct msgbuf_common_hdr msg; | |
188 | __le16 flow_ring_id; | |
189 | __le16 reason; | |
190 | __le32 rsvd0[7]; | |
191 | }; | |
192 | ||
193 | struct msgbuf_flowring_create_resp { | |
194 | struct msgbuf_common_hdr msg; | |
195 | struct msgbuf_completion_hdr compl_hdr; | |
196 | __le32 rsvd0[3]; | |
197 | }; | |
198 | ||
199 | struct msgbuf_flowring_delete_resp { | |
200 | struct msgbuf_common_hdr msg; | |
201 | struct msgbuf_completion_hdr compl_hdr; | |
202 | __le32 rsvd0[3]; | |
203 | }; | |
204 | ||
205 | struct msgbuf_flowring_flush_resp { | |
206 | struct msgbuf_common_hdr msg; | |
207 | struct msgbuf_completion_hdr compl_hdr; | |
208 | __le32 rsvd0[3]; | |
209 | }; | |
210 | ||
3ba06610 HM |
211 | struct brcmf_msgbuf_work_item { |
212 | struct list_head queue; | |
213 | u32 flowid; | |
214 | int ifidx; | |
215 | u8 sa[ETH_ALEN]; | |
216 | u8 da[ETH_ALEN]; | |
217 | }; | |
218 | ||
9a1bb602 HM |
219 | struct brcmf_msgbuf { |
220 | struct brcmf_pub *drvr; | |
221 | ||
222 | struct brcmf_commonring **commonrings; | |
223 | struct brcmf_commonring **flowrings; | |
224 | dma_addr_t *flowring_dma_handle; | |
be4b092c FL |
225 | |
226 | u16 max_flowrings; | |
227 | u16 max_submissionrings; | |
228 | u16 max_completionrings; | |
9a1bb602 HM |
229 | |
230 | u16 rx_dataoffset; | |
231 | u32 max_rxbufpost; | |
232 | u16 rx_metadata_offset; | |
233 | u32 rxbufpost; | |
234 | ||
235 | u32 max_ioctlrespbuf; | |
236 | u32 cur_ioctlrespbuf; | |
237 | u32 max_eventbuf; | |
238 | u32 cur_eventbuf; | |
239 | ||
240 | void *ioctbuf; | |
241 | dma_addr_t ioctbuf_handle; | |
242 | u32 ioctbuf_phys_hi; | |
243 | u32 ioctbuf_phys_lo; | |
ff0a6230 | 244 | int ioctl_resp_status; |
9a1bb602 HM |
245 | u32 ioctl_resp_ret_len; |
246 | u32 ioctl_resp_pktid; | |
247 | ||
248 | u16 data_seq_no; | |
249 | u16 ioctl_seq_no; | |
250 | u32 reqid; | |
251 | wait_queue_head_t ioctl_resp_wait; | |
252 | bool ctl_completed; | |
253 | ||
254 | struct brcmf_msgbuf_pktids *tx_pktids; | |
255 | struct brcmf_msgbuf_pktids *rx_pktids; | |
256 | struct brcmf_flowring *flow; | |
257 | ||
258 | struct workqueue_struct *txflow_wq; | |
259 | struct work_struct txflow_work; | |
260 | unsigned long *flow_map; | |
261 | unsigned long *txstatus_done_map; | |
3ba06610 HM |
262 | |
263 | struct work_struct flowring_work; | |
264 | spinlock_t flowring_work_lock; | |
265 | struct list_head work_queue; | |
9a1bb602 HM |
266 | }; |
267 | ||
268 | struct brcmf_msgbuf_pktid { | |
269 | atomic_t allocated; | |
270 | u16 data_offset; | |
271 | struct sk_buff *skb; | |
272 | dma_addr_t physaddr; | |
273 | }; | |
274 | ||
275 | struct brcmf_msgbuf_pktids { | |
276 | u32 array_size; | |
277 | u32 last_allocated_idx; | |
278 | enum dma_data_direction direction; | |
279 | struct brcmf_msgbuf_pktid *array; | |
280 | }; | |
281 | ||
9a1bb602 HM |
282 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf); |
283 | ||
284 | ||
285 | static struct brcmf_msgbuf_pktids * | |
286 | brcmf_msgbuf_init_pktids(u32 nr_array_entries, | |
287 | enum dma_data_direction direction) | |
288 | { | |
289 | struct brcmf_msgbuf_pktid *array; | |
290 | struct brcmf_msgbuf_pktids *pktids; | |
291 | ||
3ba06610 | 292 | array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL); |
9a1bb602 HM |
293 | if (!array) |
294 | return NULL; | |
295 | ||
3ba06610 | 296 | pktids = kzalloc(sizeof(*pktids), GFP_KERNEL); |
9a1bb602 HM |
297 | if (!pktids) { |
298 | kfree(array); | |
299 | return NULL; | |
300 | } | |
301 | pktids->array = array; | |
302 | pktids->array_size = nr_array_entries; | |
303 | ||
304 | return pktids; | |
305 | } | |
306 | ||
307 | ||
308 | static int | |
309 | brcmf_msgbuf_alloc_pktid(struct device *dev, | |
310 | struct brcmf_msgbuf_pktids *pktids, | |
311 | struct sk_buff *skb, u16 data_offset, | |
312 | dma_addr_t *physaddr, u32 *idx) | |
313 | { | |
314 | struct brcmf_msgbuf_pktid *array; | |
315 | u32 count; | |
316 | ||
317 | array = pktids->array; | |
318 | ||
319 | *physaddr = dma_map_single(dev, skb->data + data_offset, | |
320 | skb->len - data_offset, pktids->direction); | |
321 | ||
322 | if (dma_mapping_error(dev, *physaddr)) { | |
323 | brcmf_err("dma_map_single failed !!\n"); | |
324 | return -ENOMEM; | |
325 | } | |
326 | ||
327 | *idx = pktids->last_allocated_idx; | |
328 | ||
329 | count = 0; | |
330 | do { | |
331 | (*idx)++; | |
332 | if (*idx == pktids->array_size) | |
333 | *idx = 0; | |
334 | if (array[*idx].allocated.counter == 0) | |
335 | if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0) | |
336 | break; | |
337 | count++; | |
338 | } while (count < pktids->array_size); | |
339 | ||
340 | if (count == pktids->array_size) | |
341 | return -ENOMEM; | |
342 | ||
343 | array[*idx].data_offset = data_offset; | |
344 | array[*idx].physaddr = *physaddr; | |
345 | array[*idx].skb = skb; | |
346 | ||
347 | pktids->last_allocated_idx = *idx; | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | ||
353 | static struct sk_buff * | |
354 | brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids, | |
355 | u32 idx) | |
356 | { | |
357 | struct brcmf_msgbuf_pktid *pktid; | |
358 | struct sk_buff *skb; | |
359 | ||
360 | if (idx >= pktids->array_size) { | |
361 | brcmf_err("Invalid packet id %d (max %d)\n", idx, | |
362 | pktids->array_size); | |
363 | return NULL; | |
364 | } | |
365 | if (pktids->array[idx].allocated.counter) { | |
366 | pktid = &pktids->array[idx]; | |
367 | dma_unmap_single(dev, pktid->physaddr, | |
368 | pktid->skb->len - pktid->data_offset, | |
369 | pktids->direction); | |
370 | skb = pktid->skb; | |
371 | pktid->allocated.counter = 0; | |
372 | return skb; | |
373 | } else { | |
374 | brcmf_err("Invalid packet id %d (not in use)\n", idx); | |
375 | } | |
376 | ||
377 | return NULL; | |
378 | } | |
379 | ||
380 | ||
381 | static void | |
382 | brcmf_msgbuf_release_array(struct device *dev, | |
383 | struct brcmf_msgbuf_pktids *pktids) | |
384 | { | |
385 | struct brcmf_msgbuf_pktid *array; | |
386 | struct brcmf_msgbuf_pktid *pktid; | |
387 | u32 count; | |
388 | ||
389 | array = pktids->array; | |
390 | count = 0; | |
391 | do { | |
392 | if (array[count].allocated.counter) { | |
393 | pktid = &array[count]; | |
394 | dma_unmap_single(dev, pktid->physaddr, | |
395 | pktid->skb->len - pktid->data_offset, | |
396 | pktids->direction); | |
397 | brcmu_pkt_buf_free_skb(pktid->skb); | |
398 | } | |
399 | count++; | |
400 | } while (count < pktids->array_size); | |
401 | ||
402 | kfree(array); | |
403 | kfree(pktids); | |
404 | } | |
405 | ||
406 | ||
407 | static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf) | |
408 | { | |
409 | if (msgbuf->rx_pktids) | |
410 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, | |
411 | msgbuf->rx_pktids); | |
412 | if (msgbuf->tx_pktids) | |
413 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, | |
414 | msgbuf->tx_pktids); | |
415 | } | |
416 | ||
417 | ||
418 | static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx, | |
419 | uint cmd, void *buf, uint len) | |
420 | { | |
421 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
422 | struct brcmf_commonring *commonring; | |
423 | struct msgbuf_ioctl_req_hdr *request; | |
424 | u16 buf_len; | |
425 | void *ret_ptr; | |
426 | int err; | |
427 | ||
428 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
429 | brcmf_commonring_lock(commonring); | |
430 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
431 | if (!ret_ptr) { | |
432 | brcmf_err("Failed to reserve space in commonring\n"); | |
433 | brcmf_commonring_unlock(commonring); | |
434 | return -ENOMEM; | |
435 | } | |
436 | ||
437 | msgbuf->reqid++; | |
438 | ||
439 | request = (struct msgbuf_ioctl_req_hdr *)ret_ptr; | |
440 | request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ; | |
441 | request->msg.ifidx = (u8)ifidx; | |
442 | request->msg.flags = 0; | |
443 | request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID); | |
444 | request->cmd = cpu_to_le32(cmd); | |
445 | request->output_buf_len = cpu_to_le16(len); | |
446 | request->trans_id = cpu_to_le16(msgbuf->reqid); | |
447 | ||
448 | buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE); | |
449 | request->input_buf_len = cpu_to_le16(buf_len); | |
450 | request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi); | |
451 | request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo); | |
452 | if (buf) | |
453 | memcpy(msgbuf->ioctbuf, buf, buf_len); | |
454 | else | |
455 | memset(msgbuf->ioctbuf, 0, buf_len); | |
9a1bb602 HM |
456 | |
457 | err = brcmf_commonring_write_complete(commonring); | |
458 | brcmf_commonring_unlock(commonring); | |
459 | ||
460 | return err; | |
461 | } | |
462 | ||
463 | ||
464 | static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf) | |
465 | { | |
466 | return wait_event_timeout(msgbuf->ioctl_resp_wait, | |
467 | msgbuf->ctl_completed, | |
63ce3d5d | 468 | MSGBUF_IOCTL_RESP_TIMEOUT); |
9a1bb602 HM |
469 | } |
470 | ||
471 | ||
472 | static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf) | |
473 | { | |
d375bc8a | 474 | msgbuf->ctl_completed = true; |
a7decc44 | 475 | wake_up(&msgbuf->ioctl_resp_wait); |
9a1bb602 HM |
476 | } |
477 | ||
478 | ||
479 | static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx, | |
b69c1df4 | 480 | uint cmd, void *buf, uint len, int *fwerr) |
9a1bb602 HM |
481 | { |
482 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
483 | struct sk_buff *skb = NULL; | |
484 | int timeout; | |
485 | int err; | |
486 | ||
487 | brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len); | |
b69c1df4 | 488 | *fwerr = 0; |
9a1bb602 HM |
489 | msgbuf->ctl_completed = false; |
490 | err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len); | |
491 | if (err) | |
492 | return err; | |
493 | ||
494 | timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf); | |
495 | if (!timeout) { | |
496 | brcmf_err("Timeout on response for query command\n"); | |
497 | return -EIO; | |
498 | } | |
499 | ||
500 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
501 | msgbuf->rx_pktids, | |
502 | msgbuf->ioctl_resp_pktid); | |
503 | if (msgbuf->ioctl_resp_ret_len != 0) { | |
7d072b40 | 504 | if (!skb) |
9a1bb602 | 505 | return -EBADF; |
7d072b40 | 506 | |
9a1bb602 HM |
507 | memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ? |
508 | len : msgbuf->ioctl_resp_ret_len); | |
509 | } | |
ac96ce83 | 510 | brcmu_pkt_buf_free_skb(skb); |
9a1bb602 | 511 | |
b69c1df4 AVS |
512 | *fwerr = msgbuf->ioctl_resp_status; |
513 | return 0; | |
9a1bb602 HM |
514 | } |
515 | ||
516 | ||
517 | static int brcmf_msgbuf_set_dcmd(struct brcmf_pub *drvr, int ifidx, | |
b69c1df4 | 518 | uint cmd, void *buf, uint len, int *fwerr) |
9a1bb602 | 519 | { |
b69c1df4 | 520 | return brcmf_msgbuf_query_dcmd(drvr, ifidx, cmd, buf, len, fwerr); |
9a1bb602 HM |
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 | ||
bbd1f932 AS |
530 | static void brcmf_msgbuf_rxreorder(struct brcmf_if *ifp, struct sk_buff *skb) |
531 | { | |
532 | } | |
9a1bb602 HM |
533 | |
534 | static void | |
535 | brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid) | |
536 | { | |
537 | u32 dma_sz; | |
538 | void *dma_buf; | |
539 | ||
540 | brcmf_dbg(MSGBUF, "Removing flowring %d\n", flowid); | |
541 | ||
542 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; | |
543 | dma_buf = msgbuf->flowrings[flowid]->buf_addr; | |
544 | dma_free_coherent(msgbuf->drvr->bus_if->dev, dma_sz, dma_buf, | |
545 | msgbuf->flowring_dma_handle[flowid]); | |
546 | ||
547 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
548 | } | |
549 | ||
550 | ||
3ba06610 HM |
551 | static struct brcmf_msgbuf_work_item * |
552 | brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf) | |
553 | { | |
554 | struct brcmf_msgbuf_work_item *work = NULL; | |
555 | ulong flags; | |
556 | ||
557 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); | |
558 | if (!list_empty(&msgbuf->work_queue)) { | |
559 | work = list_first_entry(&msgbuf->work_queue, | |
560 | struct brcmf_msgbuf_work_item, queue); | |
561 | list_del(&work->queue); | |
562 | } | |
563 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); | |
564 | ||
565 | return work; | |
566 | } | |
567 | ||
568 | ||
569 | static u32 | |
570 | brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf, | |
571 | struct brcmf_msgbuf_work_item *work) | |
9a1bb602 HM |
572 | { |
573 | struct msgbuf_tx_flowring_create_req *create; | |
9a1bb602 HM |
574 | struct brcmf_commonring *commonring; |
575 | void *ret_ptr; | |
576 | u32 flowid; | |
577 | void *dma_buf; | |
578 | u32 dma_sz; | |
83297aaa | 579 | u64 address; |
9a1bb602 HM |
580 | int err; |
581 | ||
3ba06610 | 582 | flowid = work->flowid; |
9a1bb602 | 583 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
9a1bb602 HM |
584 | dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz, |
585 | &msgbuf->flowring_dma_handle[flowid], | |
3ba06610 | 586 | GFP_KERNEL); |
9a1bb602 HM |
587 | if (!dma_buf) { |
588 | brcmf_err("dma_alloc_coherent failed\n"); | |
589 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
590 | return BRCMF_FLOWRING_INVALID_ID; | |
591 | } | |
592 | ||
593 | brcmf_commonring_config(msgbuf->flowrings[flowid], | |
594 | BRCMF_H2D_TXFLOWRING_MAX_ITEM, | |
595 | BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf); | |
596 | ||
597 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
598 | brcmf_commonring_lock(commonring); | |
599 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
600 | if (!ret_ptr) { | |
601 | brcmf_err("Failed to reserve space in commonring\n"); | |
602 | brcmf_commonring_unlock(commonring); | |
603 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
604 | return BRCMF_FLOWRING_INVALID_ID; | |
605 | } | |
606 | ||
607 | create = (struct msgbuf_tx_flowring_create_req *)ret_ptr; | |
608 | create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE; | |
3ba06610 | 609 | create->msg.ifidx = work->ifidx; |
9a1bb602 HM |
610 | create->msg.request_id = 0; |
611 | create->tid = brcmf_flowring_tid(msgbuf->flow, flowid); | |
612 | create->flow_ring_id = cpu_to_le16(flowid + | |
be4b092c | 613 | BRCMF_H2D_MSGRING_FLOWRING_IDSTART); |
3ba06610 HM |
614 | memcpy(create->sa, work->sa, ETH_ALEN); |
615 | memcpy(create->da, work->da, ETH_ALEN); | |
83297aaa | 616 | address = (u64)msgbuf->flowring_dma_handle[flowid]; |
9a1bb602 HM |
617 | create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32); |
618 | create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff); | |
619 | create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM); | |
620 | create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE); | |
621 | ||
622 | brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n", | |
3ba06610 | 623 | flowid, work->da, create->tid, work->ifidx); |
9a1bb602 HM |
624 | |
625 | err = brcmf_commonring_write_complete(commonring); | |
626 | brcmf_commonring_unlock(commonring); | |
627 | if (err) { | |
628 | brcmf_err("Failed to write commonring\n"); | |
629 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
630 | return BRCMF_FLOWRING_INVALID_ID; | |
631 | } | |
632 | ||
633 | return flowid; | |
634 | } | |
635 | ||
636 | ||
3ba06610 HM |
637 | static void brcmf_msgbuf_flowring_worker(struct work_struct *work) |
638 | { | |
639 | struct brcmf_msgbuf *msgbuf; | |
640 | struct brcmf_msgbuf_work_item *create; | |
641 | ||
642 | msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work); | |
643 | ||
644 | while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) { | |
645 | brcmf_msgbuf_flowring_create_worker(msgbuf, create); | |
646 | kfree(create); | |
647 | } | |
648 | } | |
649 | ||
650 | ||
651 | static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx, | |
652 | struct sk_buff *skb) | |
653 | { | |
654 | struct brcmf_msgbuf_work_item *create; | |
655 | struct ethhdr *eh = (struct ethhdr *)(skb->data); | |
656 | u32 flowid; | |
657 | ulong flags; | |
658 | ||
659 | create = kzalloc(sizeof(*create), GFP_ATOMIC); | |
660 | if (create == NULL) | |
661 | return BRCMF_FLOWRING_INVALID_ID; | |
662 | ||
663 | flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest, | |
664 | skb->priority, ifidx); | |
665 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { | |
666 | kfree(create); | |
667 | return flowid; | |
668 | } | |
669 | ||
670 | create->flowid = flowid; | |
671 | create->ifidx = ifidx; | |
672 | memcpy(create->sa, eh->h_source, ETH_ALEN); | |
673 | memcpy(create->da, eh->h_dest, ETH_ALEN); | |
674 | ||
675 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); | |
676 | list_add_tail(&create->queue, &msgbuf->work_queue); | |
677 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); | |
678 | schedule_work(&msgbuf->flowring_work); | |
679 | ||
680 | return flowid; | |
681 | } | |
682 | ||
683 | ||
19c8f421 | 684 | static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u16 flowid) |
9a1bb602 HM |
685 | { |
686 | struct brcmf_flowring *flow = msgbuf->flow; | |
687 | struct brcmf_commonring *commonring; | |
688 | void *ret_ptr; | |
689 | u32 count; | |
690 | struct sk_buff *skb; | |
691 | dma_addr_t physaddr; | |
692 | u32 pktid; | |
693 | struct msgbuf_tx_msghdr *tx_msghdr; | |
83297aaa | 694 | u64 address; |
9a1bb602 HM |
695 | |
696 | commonring = msgbuf->flowrings[flowid]; | |
697 | if (!brcmf_commonring_write_available(commonring)) | |
698 | return; | |
699 | ||
700 | brcmf_commonring_lock(commonring); | |
701 | ||
702 | count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1; | |
703 | while (brcmf_flowring_qlen(flow, flowid)) { | |
704 | skb = brcmf_flowring_dequeue(flow, flowid); | |
705 | if (skb == NULL) { | |
706 | brcmf_err("No SKB, but qlen %d\n", | |
707 | brcmf_flowring_qlen(flow, flowid)); | |
708 | break; | |
709 | } | |
710 | skb_orphan(skb); | |
711 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
712 | msgbuf->tx_pktids, skb, ETH_HLEN, | |
713 | &physaddr, &pktid)) { | |
714 | brcmf_flowring_reinsert(flow, flowid, skb); | |
715 | brcmf_err("No PKTID available !!\n"); | |
716 | break; | |
717 | } | |
718 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
719 | if (!ret_ptr) { | |
720 | brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
721 | msgbuf->tx_pktids, pktid); | |
722 | brcmf_flowring_reinsert(flow, flowid, skb); | |
723 | break; | |
724 | } | |
725 | count++; | |
726 | ||
727 | tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr; | |
728 | ||
729 | tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST; | |
730 | tx_msghdr->msg.request_id = cpu_to_le32(pktid); | |
731 | tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid); | |
732 | tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3; | |
733 | tx_msghdr->flags |= (skb->priority & 0x07) << | |
734 | BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT; | |
735 | tx_msghdr->seg_cnt = 1; | |
736 | memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN); | |
737 | tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN); | |
83297aaa | 738 | address = (u64)physaddr; |
9a1bb602 HM |
739 | tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32); |
740 | tx_msghdr->data_buf_addr.low_addr = | |
741 | cpu_to_le32(address & 0xffffffff); | |
742 | tx_msghdr->metadata_buf_len = 0; | |
743 | tx_msghdr->metadata_buf_addr.high_addr = 0; | |
744 | tx_msghdr->metadata_buf_addr.low_addr = 0; | |
5ef1e604 | 745 | atomic_inc(&commonring->outstanding_tx); |
9a1bb602 HM |
746 | if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) { |
747 | brcmf_commonring_write_complete(commonring); | |
748 | count = 0; | |
749 | } | |
750 | } | |
751 | if (count) | |
752 | brcmf_commonring_write_complete(commonring); | |
753 | brcmf_commonring_unlock(commonring); | |
754 | } | |
755 | ||
756 | ||
757 | static void brcmf_msgbuf_txflow_worker(struct work_struct *worker) | |
758 | { | |
759 | struct brcmf_msgbuf *msgbuf; | |
760 | u32 flowid; | |
761 | ||
762 | msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work); | |
be4b092c | 763 | for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->max_flowrings) { |
9a1bb602 HM |
764 | clear_bit(flowid, msgbuf->flow_map); |
765 | brcmf_msgbuf_txflow(msgbuf, flowid); | |
766 | } | |
767 | } | |
768 | ||
769 | ||
5ef1e604 HM |
770 | static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid, |
771 | bool force) | |
9a1bb602 | 772 | { |
5ef1e604 HM |
773 | struct brcmf_commonring *commonring; |
774 | ||
9a1bb602 | 775 | set_bit(flowid, msgbuf->flow_map); |
5ef1e604 HM |
776 | commonring = msgbuf->flowrings[flowid]; |
777 | if ((force) || (atomic_read(&commonring->outstanding_tx) < | |
778 | BRCMF_MSGBUF_DELAY_TXWORKER_THRS)) | |
779 | queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work); | |
9a1bb602 HM |
780 | |
781 | return 0; | |
782 | } | |
783 | ||
784 | ||
b073ac1f RM |
785 | static int brcmf_msgbuf_tx_queue_data(struct brcmf_pub *drvr, int ifidx, |
786 | struct sk_buff *skb) | |
9a1bb602 HM |
787 | { |
788 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
789 | struct brcmf_flowring *flow = msgbuf->flow; | |
790 | struct ethhdr *eh = (struct ethhdr *)(skb->data); | |
791 | u32 flowid; | |
464a5f3f HM |
792 | u32 queue_count; |
793 | bool force; | |
9a1bb602 HM |
794 | |
795 | flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx); | |
796 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { | |
797 | flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb); | |
798 | if (flowid == BRCMF_FLOWRING_INVALID_ID) | |
799 | return -ENOMEM; | |
800 | } | |
464a5f3f HM |
801 | queue_count = brcmf_flowring_enqueue(flow, flowid, skb); |
802 | force = ((queue_count % BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) == 0); | |
803 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, force); | |
9a1bb602 HM |
804 | |
805 | return 0; | |
806 | } | |
807 | ||
808 | ||
809 | static void | |
810 | brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx, | |
811 | enum proto_addr_mode addr_mode) | |
812 | { | |
813 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
814 | ||
815 | brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode); | |
816 | } | |
817 | ||
818 | ||
819 | static void | |
820 | brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) | |
821 | { | |
822 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
823 | ||
824 | brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer); | |
825 | } | |
826 | ||
827 | ||
70b7d94b HM |
828 | static void |
829 | brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) | |
830 | { | |
831 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
832 | ||
833 | brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer); | |
834 | } | |
835 | ||
836 | ||
9a1bb602 HM |
837 | static void |
838 | brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf) | |
839 | { | |
840 | struct msgbuf_ioctl_resp_hdr *ioctl_resp; | |
841 | ||
842 | ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf; | |
843 | ||
ff0a6230 HM |
844 | msgbuf->ioctl_resp_status = |
845 | (s16)le16_to_cpu(ioctl_resp->compl_hdr.status); | |
9a1bb602 HM |
846 | msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len); |
847 | msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id); | |
848 | ||
849 | brcmf_msgbuf_ioctl_resp_wake(msgbuf); | |
850 | ||
851 | if (msgbuf->cur_ioctlrespbuf) | |
852 | msgbuf->cur_ioctlrespbuf--; | |
853 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); | |
854 | } | |
855 | ||
856 | ||
857 | static void | |
858 | brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf) | |
859 | { | |
5ef1e604 | 860 | struct brcmf_commonring *commonring; |
9a1bb602 HM |
861 | struct msgbuf_tx_status *tx_status; |
862 | u32 idx; | |
863 | struct sk_buff *skb; | |
864 | u16 flowid; | |
865 | ||
866 | tx_status = (struct msgbuf_tx_status *)buf; | |
867 | idx = le32_to_cpu(tx_status->msg.request_id); | |
868 | flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id); | |
be4b092c | 869 | flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9a1bb602 HM |
870 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
871 | msgbuf->tx_pktids, idx); | |
7d072b40 | 872 | if (!skb) |
9a1bb602 | 873 | return; |
9a1bb602 HM |
874 | |
875 | set_bit(flowid, msgbuf->txstatus_done_map); | |
5ef1e604 HM |
876 | commonring = msgbuf->flowrings[flowid]; |
877 | atomic_dec(&commonring->outstanding_tx); | |
9a1bb602 | 878 | |
054e68ad AS |
879 | brcmf_txfinalize(brcmf_get_ifp(msgbuf->drvr, tx_status->msg.ifidx), |
880 | skb, true); | |
9a1bb602 HM |
881 | } |
882 | ||
883 | ||
884 | static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count) | |
885 | { | |
886 | struct brcmf_commonring *commonring; | |
887 | void *ret_ptr; | |
888 | struct sk_buff *skb; | |
889 | u16 alloced; | |
890 | u32 pktlen; | |
891 | dma_addr_t physaddr; | |
892 | struct msgbuf_rx_bufpost *rx_bufpost; | |
83297aaa | 893 | u64 address; |
9a1bb602 HM |
894 | u32 pktid; |
895 | u32 i; | |
896 | ||
897 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; | |
898 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, | |
899 | count, | |
900 | &alloced); | |
901 | if (!ret_ptr) { | |
d2e2472c | 902 | brcmf_dbg(MSGBUF, "Failed to reserve space in commonring\n"); |
9a1bb602 HM |
903 | return 0; |
904 | } | |
905 | ||
906 | for (i = 0; i < alloced; i++) { | |
907 | rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr; | |
908 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); | |
909 | ||
910 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); | |
911 | ||
912 | if (skb == NULL) { | |
913 | brcmf_err("Failed to alloc SKB\n"); | |
914 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
915 | break; | |
916 | } | |
917 | ||
918 | pktlen = skb->len; | |
919 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
920 | msgbuf->rx_pktids, skb, 0, | |
921 | &physaddr, &pktid)) { | |
922 | dev_kfree_skb_any(skb); | |
923 | brcmf_err("No PKTID available !!\n"); | |
924 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
925 | break; | |
926 | } | |
927 | ||
928 | if (msgbuf->rx_metadata_offset) { | |
83297aaa | 929 | address = (u64)physaddr; |
9a1bb602 HM |
930 | rx_bufpost->metadata_buf_len = |
931 | cpu_to_le16(msgbuf->rx_metadata_offset); | |
932 | rx_bufpost->metadata_buf_addr.high_addr = | |
933 | cpu_to_le32(address >> 32); | |
934 | rx_bufpost->metadata_buf_addr.low_addr = | |
935 | cpu_to_le32(address & 0xffffffff); | |
936 | ||
937 | skb_pull(skb, msgbuf->rx_metadata_offset); | |
938 | pktlen = skb->len; | |
939 | physaddr += msgbuf->rx_metadata_offset; | |
940 | } | |
941 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST; | |
942 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); | |
943 | ||
83297aaa | 944 | address = (u64)physaddr; |
9a1bb602 HM |
945 | rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen); |
946 | rx_bufpost->data_buf_addr.high_addr = | |
947 | cpu_to_le32(address >> 32); | |
948 | rx_bufpost->data_buf_addr.low_addr = | |
949 | cpu_to_le32(address & 0xffffffff); | |
950 | ||
951 | ret_ptr += brcmf_commonring_len_item(commonring); | |
952 | } | |
953 | ||
954 | if (i) | |
955 | brcmf_commonring_write_complete(commonring); | |
956 | ||
957 | return i; | |
958 | } | |
959 | ||
960 | ||
961 | static void | |
962 | brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf) | |
963 | { | |
964 | u32 fillbufs; | |
965 | u32 retcount; | |
966 | ||
967 | fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost; | |
968 | ||
969 | while (fillbufs) { | |
970 | retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs); | |
971 | if (!retcount) | |
972 | break; | |
973 | msgbuf->rxbufpost += retcount; | |
974 | fillbufs -= retcount; | |
975 | } | |
976 | } | |
977 | ||
978 | ||
979 | static void | |
980 | brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt) | |
981 | { | |
982 | msgbuf->rxbufpost -= rxcnt; | |
983 | if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost - | |
984 | BRCMF_MSGBUF_RXBUFPOST_THRESHOLD)) | |
985 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); | |
986 | } | |
987 | ||
988 | ||
989 | static u32 | |
990 | brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf, | |
991 | u32 count) | |
992 | { | |
993 | struct brcmf_commonring *commonring; | |
994 | void *ret_ptr; | |
995 | struct sk_buff *skb; | |
996 | u16 alloced; | |
997 | u32 pktlen; | |
998 | dma_addr_t physaddr; | |
999 | struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost; | |
83297aaa | 1000 | u64 address; |
9a1bb602 HM |
1001 | u32 pktid; |
1002 | u32 i; | |
1003 | ||
1004 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1005 | brcmf_commonring_lock(commonring); | |
1006 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, | |
1007 | count, | |
1008 | &alloced); | |
1009 | if (!ret_ptr) { | |
1010 | brcmf_err("Failed to reserve space in commonring\n"); | |
1011 | brcmf_commonring_unlock(commonring); | |
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | for (i = 0; i < alloced; i++) { | |
1016 | rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr; | |
1017 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); | |
1018 | ||
1019 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); | |
1020 | ||
1021 | if (skb == NULL) { | |
1022 | brcmf_err("Failed to alloc SKB\n"); | |
1023 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
1024 | break; | |
1025 | } | |
1026 | ||
1027 | pktlen = skb->len; | |
1028 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
1029 | msgbuf->rx_pktids, skb, 0, | |
1030 | &physaddr, &pktid)) { | |
1031 | dev_kfree_skb_any(skb); | |
1032 | brcmf_err("No PKTID available !!\n"); | |
1033 | brcmf_commonring_write_cancel(commonring, alloced - i); | |
1034 | break; | |
1035 | } | |
1036 | if (event_buf) | |
1037 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST; | |
1038 | else | |
1039 | rx_bufpost->msg.msgtype = | |
1040 | MSGBUF_TYPE_IOCTLRESP_BUF_POST; | |
1041 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); | |
1042 | ||
83297aaa | 1043 | address = (u64)physaddr; |
9a1bb602 HM |
1044 | rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen); |
1045 | rx_bufpost->host_buf_addr.high_addr = | |
1046 | cpu_to_le32(address >> 32); | |
1047 | rx_bufpost->host_buf_addr.low_addr = | |
1048 | cpu_to_le32(address & 0xffffffff); | |
1049 | ||
1050 | ret_ptr += brcmf_commonring_len_item(commonring); | |
1051 | } | |
1052 | ||
1053 | if (i) | |
1054 | brcmf_commonring_write_complete(commonring); | |
1055 | ||
1056 | brcmf_commonring_unlock(commonring); | |
1057 | ||
1058 | return i; | |
1059 | } | |
1060 | ||
1061 | ||
1062 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf) | |
1063 | { | |
1064 | u32 count; | |
1065 | ||
1066 | count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf; | |
1067 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count); | |
1068 | msgbuf->cur_ioctlrespbuf += count; | |
1069 | } | |
1070 | ||
1071 | ||
1072 | static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf) | |
1073 | { | |
1074 | u32 count; | |
1075 | ||
1076 | count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf; | |
1077 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count); | |
1078 | msgbuf->cur_eventbuf += count; | |
1079 | } | |
1080 | ||
1081 | ||
9a1bb602 HM |
1082 | static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) |
1083 | { | |
1084 | struct msgbuf_rx_event *event; | |
1085 | u32 idx; | |
1086 | u16 buflen; | |
1087 | struct sk_buff *skb; | |
c56caa9d | 1088 | struct brcmf_if *ifp; |
9a1bb602 HM |
1089 | |
1090 | event = (struct msgbuf_rx_event *)buf; | |
1091 | idx = le32_to_cpu(event->msg.request_id); | |
1092 | buflen = le16_to_cpu(event->event_data_len); | |
1093 | ||
1094 | if (msgbuf->cur_eventbuf) | |
1095 | msgbuf->cur_eventbuf--; | |
1096 | brcmf_msgbuf_rxbuf_event_post(msgbuf); | |
1097 | ||
1098 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
1099 | msgbuf->rx_pktids, idx); | |
1100 | if (!skb) | |
1101 | return; | |
1102 | ||
1103 | if (msgbuf->rx_dataoffset) | |
1104 | skb_pull(skb, msgbuf->rx_dataoffset); | |
1105 | ||
1106 | skb_trim(skb, buflen); | |
1107 | ||
c56caa9d FL |
1108 | ifp = brcmf_get_ifp(msgbuf->drvr, event->msg.ifidx); |
1109 | if (!ifp || !ifp->ndev) { | |
1110 | brcmf_err("Received pkt for invalid ifidx %d\n", | |
1111 | event->msg.ifidx); | |
1112 | goto exit; | |
1113 | } | |
1114 | ||
1115 | skb->protocol = eth_type_trans(skb, ifp->ndev); | |
1116 | ||
1117 | brcmf_fweh_process_skb(ifp->drvr, skb); | |
1118 | ||
1119 | exit: | |
1120 | brcmu_pkt_buf_free_skb(skb); | |
9a1bb602 HM |
1121 | } |
1122 | ||
1123 | ||
1124 | static void | |
1125 | brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) | |
1126 | { | |
1127 | struct msgbuf_rx_complete *rx_complete; | |
1128 | struct sk_buff *skb; | |
1129 | u16 data_offset; | |
1130 | u16 buflen; | |
1131 | u32 idx; | |
c56caa9d | 1132 | struct brcmf_if *ifp; |
9a1bb602 HM |
1133 | |
1134 | brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1); | |
1135 | ||
1136 | rx_complete = (struct msgbuf_rx_complete *)buf; | |
1137 | data_offset = le16_to_cpu(rx_complete->data_offset); | |
1138 | buflen = le16_to_cpu(rx_complete->data_len); | |
1139 | idx = le32_to_cpu(rx_complete->msg.request_id); | |
1140 | ||
1141 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
1142 | msgbuf->rx_pktids, idx); | |
7d072b40 AS |
1143 | if (!skb) |
1144 | return; | |
9a1bb602 HM |
1145 | |
1146 | if (data_offset) | |
1147 | skb_pull(skb, data_offset); | |
1148 | else if (msgbuf->rx_dataoffset) | |
1149 | skb_pull(skb, msgbuf->rx_dataoffset); | |
1150 | ||
1151 | skb_trim(skb, buflen); | |
1152 | ||
c56caa9d FL |
1153 | ifp = brcmf_get_ifp(msgbuf->drvr, rx_complete->msg.ifidx); |
1154 | if (!ifp || !ifp->ndev) { | |
1155 | brcmf_err("Received pkt for invalid ifidx %d\n", | |
1156 | rx_complete->msg.ifidx); | |
1157 | brcmu_pkt_buf_free_skb(skb); | |
1158 | return; | |
1159 | } | |
31143e29 FL |
1160 | |
1161 | skb->protocol = eth_type_trans(skb, ifp->ndev); | |
9c349892 | 1162 | brcmf_netif_rx(ifp, skb); |
9a1bb602 HM |
1163 | } |
1164 | ||
1165 | ||
1166 | static void | |
1167 | brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf, | |
1168 | void *buf) | |
1169 | { | |
1170 | struct msgbuf_flowring_create_resp *flowring_create_resp; | |
1171 | u16 status; | |
1172 | u16 flowid; | |
1173 | ||
1174 | flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf; | |
1175 | ||
1176 | flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id); | |
be4b092c | 1177 | flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9a1bb602 HM |
1178 | status = le16_to_cpu(flowring_create_resp->compl_hdr.status); |
1179 | ||
1180 | if (status) { | |
1181 | brcmf_err("Flowring creation failed, code %d\n", status); | |
1182 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1183 | return; | |
1184 | } | |
1185 | brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid, | |
1186 | status); | |
1187 | ||
1188 | brcmf_flowring_open(msgbuf->flow, flowid); | |
1189 | ||
5ef1e604 | 1190 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); |
9a1bb602 HM |
1191 | } |
1192 | ||
1193 | ||
1194 | static void | |
1195 | brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf, | |
1196 | void *buf) | |
1197 | { | |
1198 | struct msgbuf_flowring_delete_resp *flowring_delete_resp; | |
1199 | u16 status; | |
1200 | u16 flowid; | |
1201 | ||
1202 | flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf; | |
1203 | ||
1204 | flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id); | |
be4b092c | 1205 | flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9a1bb602 HM |
1206 | status = le16_to_cpu(flowring_delete_resp->compl_hdr.status); |
1207 | ||
1208 | if (status) { | |
1209 | brcmf_err("Flowring deletion failed, code %d\n", status); | |
1210 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
1211 | return; | |
1212 | } | |
1213 | brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid, | |
1214 | status); | |
1215 | ||
1216 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1217 | } | |
1218 | ||
1219 | ||
1220 | static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf) | |
1221 | { | |
1222 | struct msgbuf_common_hdr *msg; | |
1223 | ||
1224 | msg = (struct msgbuf_common_hdr *)buf; | |
1225 | switch (msg->msgtype) { | |
1226 | case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT: | |
1227 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n"); | |
1228 | brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf); | |
1229 | break; | |
1230 | case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT: | |
1231 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n"); | |
1232 | brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf); | |
1233 | break; | |
1234 | case MSGBUF_TYPE_IOCTLPTR_REQ_ACK: | |
1235 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n"); | |
1236 | break; | |
1237 | case MSGBUF_TYPE_IOCTL_CMPLT: | |
1238 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n"); | |
1239 | brcmf_msgbuf_process_ioctl_complete(msgbuf, buf); | |
1240 | break; | |
1241 | case MSGBUF_TYPE_WL_EVENT: | |
1242 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n"); | |
1243 | brcmf_msgbuf_process_event(msgbuf, buf); | |
1244 | break; | |
1245 | case MSGBUF_TYPE_TX_STATUS: | |
1246 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n"); | |
1247 | brcmf_msgbuf_process_txstatus(msgbuf, buf); | |
1248 | break; | |
1249 | case MSGBUF_TYPE_RX_CMPLT: | |
1250 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n"); | |
1251 | brcmf_msgbuf_process_rx_complete(msgbuf, buf); | |
1252 | break; | |
1253 | default: | |
1254 | brcmf_err("Unsupported msgtype %d\n", msg->msgtype); | |
1255 | break; | |
1256 | } | |
1257 | } | |
1258 | ||
1259 | ||
1260 | static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf, | |
1261 | struct brcmf_commonring *commonring) | |
1262 | { | |
1263 | void *buf; | |
1264 | u16 count; | |
df738c2f | 1265 | u16 processed; |
9a1bb602 HM |
1266 | |
1267 | again: | |
1268 | buf = brcmf_commonring_get_read_ptr(commonring, &count); | |
1269 | if (buf == NULL) | |
1270 | return; | |
1271 | ||
df738c2f | 1272 | processed = 0; |
9a1bb602 HM |
1273 | while (count) { |
1274 | brcmf_msgbuf_process_msgtype(msgbuf, | |
1275 | buf + msgbuf->rx_dataoffset); | |
1276 | buf += brcmf_commonring_len_item(commonring); | |
df738c2f HM |
1277 | processed++; |
1278 | if (processed == BRCMF_MSGBUF_UPDATE_RX_PTR_THRS) { | |
1279 | brcmf_commonring_read_complete(commonring, processed); | |
1280 | processed = 0; | |
1281 | } | |
9a1bb602 HM |
1282 | count--; |
1283 | } | |
df738c2f HM |
1284 | if (processed) |
1285 | brcmf_commonring_read_complete(commonring, processed); | |
9a1bb602 HM |
1286 | |
1287 | if (commonring->r_ptr == 0) | |
1288 | goto again; | |
1289 | } | |
1290 | ||
1291 | ||
1292 | int brcmf_proto_msgbuf_rx_trigger(struct device *dev) | |
1293 | { | |
1294 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1295 | struct brcmf_pub *drvr = bus_if->drvr; | |
1296 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
5ef1e604 | 1297 | struct brcmf_commonring *commonring; |
9a1bb602 HM |
1298 | void *buf; |
1299 | u32 flowid; | |
5ef1e604 | 1300 | int qlen; |
9a1bb602 HM |
1301 | |
1302 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; | |
1303 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1304 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; | |
1305 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1306 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; | |
1307 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1308 | ||
1309 | for_each_set_bit(flowid, msgbuf->txstatus_done_map, | |
be4b092c | 1310 | msgbuf->max_flowrings) { |
9a1bb602 | 1311 | clear_bit(flowid, msgbuf->txstatus_done_map); |
5ef1e604 HM |
1312 | commonring = msgbuf->flowrings[flowid]; |
1313 | qlen = brcmf_flowring_qlen(msgbuf->flow, flowid); | |
1314 | if ((qlen > BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) || | |
1315 | ((qlen) && (atomic_read(&commonring->outstanding_tx) < | |
1316 | BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS))) | |
1317 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); | |
9a1bb602 HM |
1318 | } |
1319 | ||
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | ||
19c8f421 | 1324 | void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u16 flowid) |
9a1bb602 HM |
1325 | { |
1326 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
1327 | struct msgbuf_tx_flowring_delete_req *delete; | |
1328 | struct brcmf_commonring *commonring; | |
1329 | void *ret_ptr; | |
1330 | u8 ifidx; | |
1331 | int err; | |
1332 | ||
1333 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1334 | brcmf_commonring_lock(commonring); | |
1335 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
1336 | if (!ret_ptr) { | |
1337 | brcmf_err("FW unaware, flowring will be removed !!\n"); | |
1338 | brcmf_commonring_unlock(commonring); | |
1339 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1340 | return; | |
1341 | } | |
1342 | ||
1343 | delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr; | |
1344 | ||
1345 | ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid); | |
1346 | ||
1347 | delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE; | |
1348 | delete->msg.ifidx = ifidx; | |
1349 | delete->msg.request_id = 0; | |
1350 | ||
1351 | delete->flow_ring_id = cpu_to_le16(flowid + | |
be4b092c | 1352 | BRCMF_H2D_MSGRING_FLOWRING_IDSTART); |
9a1bb602 HM |
1353 | delete->reason = 0; |
1354 | ||
1355 | brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n", | |
1356 | flowid, ifidx); | |
1357 | ||
1358 | err = brcmf_commonring_write_complete(commonring); | |
1359 | brcmf_commonring_unlock(commonring); | |
1360 | if (err) { | |
1361 | brcmf_err("Failed to submit RING_DELETE, flowring will be removed\n"); | |
1362 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1363 | } | |
1364 | } | |
1365 | ||
2bb66a81 FL |
1366 | #ifdef DEBUG |
1367 | static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) | |
1368 | { | |
1369 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); | |
1370 | struct brcmf_pub *drvr = bus_if->drvr; | |
1371 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
1372 | struct brcmf_commonring *commonring; | |
1373 | u16 i; | |
1374 | struct brcmf_flowring_ring *ring; | |
1375 | struct brcmf_flowring_hash *hash; | |
1376 | ||
1377 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1378 | seq_printf(seq, "h2d_ctl_submit: rp %4u, wp %4u, depth %4u\n", | |
1379 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1380 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; | |
1381 | seq_printf(seq, "h2d_rx_submit: rp %4u, wp %4u, depth %4u\n", | |
1382 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1383 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; | |
1384 | seq_printf(seq, "d2h_ctl_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1385 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1386 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; | |
1387 | seq_printf(seq, "d2h_tx_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1388 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1389 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; | |
1390 | seq_printf(seq, "d2h_rx_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1391 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1392 | ||
1393 | seq_printf(seq, "\nh2d_flowrings: depth %u\n", | |
1394 | BRCMF_H2D_TXFLOWRING_MAX_ITEM); | |
1395 | seq_puts(seq, "Active flowrings:\n"); | |
1396 | hash = msgbuf->flow->hash; | |
1397 | for (i = 0; i < msgbuf->flow->nrofrings; i++) { | |
1398 | if (!msgbuf->flow->rings[i]) | |
1399 | continue; | |
1400 | ring = msgbuf->flow->rings[i]; | |
1401 | if (ring->status != RING_OPEN) | |
1402 | continue; | |
1403 | commonring = msgbuf->flowrings[i]; | |
1404 | hash = &msgbuf->flow->hash[ring->hash_id]; | |
1405 | seq_printf(seq, "id %3u: rp %4u, wp %4u, qlen %4u, blocked %u\n" | |
1406 | " ifidx %u, fifo %u, da %pM\n", | |
1407 | i, commonring->r_ptr, commonring->w_ptr, | |
1408 | skb_queue_len(&ring->skblist), ring->blocked, | |
1409 | hash->ifidx, hash->fifo, hash->mac); | |
1410 | } | |
1411 | ||
1412 | return 0; | |
1413 | } | |
1414 | #else | |
1415 | static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) | |
1416 | { | |
1417 | return 0; | |
1418 | } | |
1419 | #endif | |
9a1bb602 | 1420 | |
34789d0c AVS |
1421 | static void brcmf_msgbuf_debugfs_create(struct brcmf_pub *drvr) |
1422 | { | |
1423 | brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read); | |
1424 | } | |
1425 | ||
9a1bb602 HM |
1426 | int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) |
1427 | { | |
1428 | struct brcmf_bus_msgbuf *if_msgbuf; | |
1429 | struct brcmf_msgbuf *msgbuf; | |
83297aaa | 1430 | u64 address; |
9a1bb602 HM |
1431 | u32 count; |
1432 | ||
1433 | if_msgbuf = drvr->bus_if->msgbuf; | |
19c8f421 | 1434 | |
be4b092c | 1435 | if (if_msgbuf->max_flowrings >= BRCMF_FLOWRING_HASHSIZE) { |
19c8f421 | 1436 | brcmf_err("driver not configured for this many flowrings %d\n", |
be4b092c FL |
1437 | if_msgbuf->max_flowrings); |
1438 | if_msgbuf->max_flowrings = BRCMF_FLOWRING_HASHSIZE - 1; | |
19c8f421 HM |
1439 | } |
1440 | ||
3ba06610 | 1441 | msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL); |
9a1bb602 HM |
1442 | if (!msgbuf) |
1443 | goto fail; | |
1444 | ||
1445 | msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow"); | |
1446 | if (msgbuf->txflow_wq == NULL) { | |
1447 | brcmf_err("workqueue creation failed\n"); | |
1448 | goto fail; | |
1449 | } | |
1450 | INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker); | |
be4b092c | 1451 | count = BITS_TO_LONGS(if_msgbuf->max_flowrings); |
333c2aa0 | 1452 | count = count * sizeof(unsigned long); |
3ba06610 | 1453 | msgbuf->flow_map = kzalloc(count, GFP_KERNEL); |
9a1bb602 HM |
1454 | if (!msgbuf->flow_map) |
1455 | goto fail; | |
1456 | ||
3ba06610 | 1457 | msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL); |
9a1bb602 HM |
1458 | if (!msgbuf->txstatus_done_map) |
1459 | goto fail; | |
1460 | ||
1461 | msgbuf->drvr = drvr; | |
1462 | msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev, | |
1463 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1464 | &msgbuf->ioctbuf_handle, | |
3ba06610 | 1465 | GFP_KERNEL); |
9a1bb602 HM |
1466 | if (!msgbuf->ioctbuf) |
1467 | goto fail; | |
83297aaa | 1468 | address = (u64)msgbuf->ioctbuf_handle; |
9a1bb602 HM |
1469 | msgbuf->ioctbuf_phys_hi = address >> 32; |
1470 | msgbuf->ioctbuf_phys_lo = address & 0xffffffff; | |
1471 | ||
1472 | drvr->proto->hdrpull = brcmf_msgbuf_hdrpull; | |
1473 | drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd; | |
1474 | drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd; | |
b073ac1f | 1475 | drvr->proto->tx_queue_data = brcmf_msgbuf_tx_queue_data; |
9a1bb602 HM |
1476 | drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode; |
1477 | drvr->proto->delete_peer = brcmf_msgbuf_delete_peer; | |
70b7d94b | 1478 | drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer; |
bbd1f932 | 1479 | drvr->proto->rxreorder = brcmf_msgbuf_rxreorder; |
34789d0c | 1480 | drvr->proto->debugfs_create = brcmf_msgbuf_debugfs_create; |
9a1bb602 HM |
1481 | drvr->proto->pd = msgbuf; |
1482 | ||
1483 | init_waitqueue_head(&msgbuf->ioctl_resp_wait); | |
1484 | ||
1485 | msgbuf->commonrings = | |
1486 | (struct brcmf_commonring **)if_msgbuf->commonrings; | |
1487 | msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings; | |
be4b092c | 1488 | msgbuf->max_flowrings = if_msgbuf->max_flowrings; |
6396bb22 KC |
1489 | msgbuf->flowring_dma_handle = |
1490 | kcalloc(msgbuf->max_flowrings, | |
1491 | sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL); | |
2d116b88 AS |
1492 | if (!msgbuf->flowring_dma_handle) |
1493 | goto fail; | |
9a1bb602 HM |
1494 | |
1495 | msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset; | |
1496 | msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost; | |
1497 | ||
1498 | msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST; | |
1499 | msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST; | |
1500 | ||
1501 | msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS, | |
1502 | DMA_TO_DEVICE); | |
1503 | if (!msgbuf->tx_pktids) | |
1504 | goto fail; | |
1505 | msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS, | |
1506 | DMA_FROM_DEVICE); | |
1507 | if (!msgbuf->rx_pktids) | |
1508 | goto fail; | |
1509 | ||
1510 | msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev, | |
be4b092c | 1511 | if_msgbuf->max_flowrings); |
9a1bb602 HM |
1512 | if (!msgbuf->flow) |
1513 | goto fail; | |
1514 | ||
1515 | ||
1516 | brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n", | |
1517 | msgbuf->max_rxbufpost, msgbuf->max_eventbuf, | |
1518 | msgbuf->max_ioctlrespbuf); | |
1519 | count = 0; | |
1520 | do { | |
1521 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); | |
1522 | if (msgbuf->max_rxbufpost != msgbuf->rxbufpost) | |
1523 | msleep(10); | |
1524 | else | |
1525 | break; | |
1526 | count++; | |
1527 | } while (count < 10); | |
1528 | brcmf_msgbuf_rxbuf_event_post(msgbuf); | |
1529 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); | |
1530 | ||
3ba06610 HM |
1531 | INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker); |
1532 | spin_lock_init(&msgbuf->flowring_work_lock); | |
1533 | INIT_LIST_HEAD(&msgbuf->work_queue); | |
1534 | ||
9a1bb602 HM |
1535 | return 0; |
1536 | ||
1537 | fail: | |
1538 | if (msgbuf) { | |
1539 | kfree(msgbuf->flow_map); | |
1540 | kfree(msgbuf->txstatus_done_map); | |
1541 | brcmf_msgbuf_release_pktids(msgbuf); | |
2d116b88 | 1542 | kfree(msgbuf->flowring_dma_handle); |
9a1bb602 HM |
1543 | if (msgbuf->ioctbuf) |
1544 | dma_free_coherent(drvr->bus_if->dev, | |
1545 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1546 | msgbuf->ioctbuf, | |
1547 | msgbuf->ioctbuf_handle); | |
1548 | kfree(msgbuf); | |
1549 | } | |
1550 | return -ENOMEM; | |
1551 | } | |
1552 | ||
1553 | ||
1554 | void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr) | |
1555 | { | |
1556 | struct brcmf_msgbuf *msgbuf; | |
3ba06610 | 1557 | struct brcmf_msgbuf_work_item *work; |
9a1bb602 HM |
1558 | |
1559 | brcmf_dbg(TRACE, "Enter\n"); | |
1560 | if (drvr->proto->pd) { | |
1561 | msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
3ba06610 HM |
1562 | cancel_work_sync(&msgbuf->flowring_work); |
1563 | while (!list_empty(&msgbuf->work_queue)) { | |
1564 | work = list_first_entry(&msgbuf->work_queue, | |
1565 | struct brcmf_msgbuf_work_item, | |
1566 | queue); | |
1567 | list_del(&work->queue); | |
1568 | kfree(work); | |
1569 | } | |
9a1bb602 HM |
1570 | kfree(msgbuf->flow_map); |
1571 | kfree(msgbuf->txstatus_done_map); | |
1572 | if (msgbuf->txflow_wq) | |
1573 | destroy_workqueue(msgbuf->txflow_wq); | |
1574 | ||
1575 | brcmf_flowring_detach(msgbuf->flow); | |
1576 | dma_free_coherent(drvr->bus_if->dev, | |
1577 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1578 | msgbuf->ioctbuf, msgbuf->ioctbuf_handle); | |
1579 | brcmf_msgbuf_release_pktids(msgbuf); | |
2d116b88 | 1580 | kfree(msgbuf->flowring_dma_handle); |
9a1bb602 HM |
1581 | kfree(msgbuf); |
1582 | drvr->proto->pd = NULL; | |
1583 | } | |
1584 | } |