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daeccac2 AS |
1 | // SPDX-License-Identifier: ISC |
2 | /* | |
3 | * Copyright (c) 2014 Broadcom Corporation | |
9a1bb602 HM |
4 | */ |
5 | ||
6 | /******************************************************************************* | |
7 | * Communicates with the dongle by using dcmd codes. | |
8 | * For certain dcmd codes, the dongle interprets string data from the host. | |
9 | ******************************************************************************/ | |
10 | ||
11 | #include <linux/types.h> | |
12 | #include <linux/netdevice.h> | |
c56caa9d | 13 | #include <linux/etherdevice.h> |
9a1bb602 HM |
14 | |
15 | #include <brcmu_utils.h> | |
16 | #include <brcmu_wifi.h> | |
17 | ||
122d3d04 | 18 | #include "core.h" |
a8e8ed34 | 19 | #include "debug.h" |
9a1bb602 HM |
20 | #include "proto.h" |
21 | #include "msgbuf.h" | |
22 | #include "commonring.h" | |
23 | #include "flowring.h" | |
d14f78b9 | 24 | #include "bus.h" |
9a1bb602 HM |
25 | #include "tracepoint.h" |
26 | ||
27 | ||
63ce3d5d | 28 | #define MSGBUF_IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000) |
9a1bb602 HM |
29 | |
30 | #define MSGBUF_TYPE_GEN_STATUS 0x1 | |
31 | #define MSGBUF_TYPE_RING_STATUS 0x2 | |
32 | #define MSGBUF_TYPE_FLOW_RING_CREATE 0x3 | |
33 | #define MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT 0x4 | |
34 | #define MSGBUF_TYPE_FLOW_RING_DELETE 0x5 | |
35 | #define MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT 0x6 | |
36 | #define MSGBUF_TYPE_FLOW_RING_FLUSH 0x7 | |
37 | #define MSGBUF_TYPE_FLOW_RING_FLUSH_CMPLT 0x8 | |
38 | #define MSGBUF_TYPE_IOCTLPTR_REQ 0x9 | |
39 | #define MSGBUF_TYPE_IOCTLPTR_REQ_ACK 0xA | |
40 | #define MSGBUF_TYPE_IOCTLRESP_BUF_POST 0xB | |
41 | #define MSGBUF_TYPE_IOCTL_CMPLT 0xC | |
42 | #define MSGBUF_TYPE_EVENT_BUF_POST 0xD | |
43 | #define MSGBUF_TYPE_WL_EVENT 0xE | |
44 | #define MSGBUF_TYPE_TX_POST 0xF | |
45 | #define MSGBUF_TYPE_TX_STATUS 0x10 | |
46 | #define MSGBUF_TYPE_RXBUF_POST 0x11 | |
47 | #define MSGBUF_TYPE_RX_CMPLT 0x12 | |
48 | #define MSGBUF_TYPE_LPBK_DMAXFER 0x13 | |
49 | #define MSGBUF_TYPE_LPBK_DMAXFER_CMPLT 0x14 | |
50 | ||
51 | #define NR_TX_PKTIDS 2048 | |
52 | #define NR_RX_PKTIDS 1024 | |
53 | ||
54 | #define BRCMF_IOCTL_REQ_PKTID 0xFFFE | |
55 | ||
56 | #define BRCMF_MSGBUF_MAX_PKT_SIZE 2048 | |
57 | #define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD 32 | |
58 | #define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST 8 | |
59 | #define BRCMF_MSGBUF_MAX_EVENTBUF_POST 8 | |
60 | ||
61 | #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3 0x01 | |
a8d76318 RM |
62 | #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_11 0x02 |
63 | #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_MASK 0x07 | |
9a1bb602 HM |
64 | #define BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT 5 |
65 | ||
66 | #define BRCMF_MSGBUF_TX_FLUSH_CNT1 32 | |
67 | #define BRCMF_MSGBUF_TX_FLUSH_CNT2 96 | |
68 | ||
464a5f3f | 69 | #define BRCMF_MSGBUF_DELAY_TXWORKER_THRS 96 |
5ef1e604 | 70 | #define BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS 32 |
df738c2f HM |
71 | #define BRCMF_MSGBUF_UPDATE_RX_PTR_THRS 48 |
72 | ||
9a1bb602 HM |
73 | |
74 | struct msgbuf_common_hdr { | |
75 | u8 msgtype; | |
76 | u8 ifidx; | |
77 | u8 flags; | |
78 | u8 rsvd0; | |
79 | __le32 request_id; | |
80 | }; | |
81 | ||
9a1bb602 HM |
82 | struct msgbuf_ioctl_req_hdr { |
83 | struct msgbuf_common_hdr msg; | |
84 | __le32 cmd; | |
85 | __le16 trans_id; | |
86 | __le16 input_buf_len; | |
87 | __le16 output_buf_len; | |
88 | __le16 rsvd0[3]; | |
89 | struct msgbuf_buf_addr req_buf_addr; | |
90 | __le32 rsvd1[2]; | |
91 | }; | |
92 | ||
93 | struct msgbuf_tx_msghdr { | |
94 | struct msgbuf_common_hdr msg; | |
95 | u8 txhdr[ETH_HLEN]; | |
96 | u8 flags; | |
97 | u8 seg_cnt; | |
98 | struct msgbuf_buf_addr metadata_buf_addr; | |
99 | struct msgbuf_buf_addr data_buf_addr; | |
100 | __le16 metadata_buf_len; | |
101 | __le16 data_len; | |
102 | __le32 rsvd0; | |
103 | }; | |
104 | ||
105 | struct msgbuf_rx_bufpost { | |
106 | struct msgbuf_common_hdr msg; | |
107 | __le16 metadata_buf_len; | |
108 | __le16 data_buf_len; | |
109 | __le32 rsvd0; | |
110 | struct msgbuf_buf_addr metadata_buf_addr; | |
111 | struct msgbuf_buf_addr data_buf_addr; | |
112 | }; | |
113 | ||
114 | struct msgbuf_rx_ioctl_resp_or_event { | |
115 | struct msgbuf_common_hdr msg; | |
116 | __le16 host_buf_len; | |
117 | __le16 rsvd0[3]; | |
118 | struct msgbuf_buf_addr host_buf_addr; | |
119 | __le32 rsvd1[4]; | |
120 | }; | |
121 | ||
122 | struct msgbuf_completion_hdr { | |
123 | __le16 status; | |
124 | __le16 flow_ring_id; | |
125 | }; | |
126 | ||
c9137749 RM |
127 | /* Data struct for the MSGBUF_TYPE_GEN_STATUS */ |
128 | struct msgbuf_gen_status { | |
129 | struct msgbuf_common_hdr msg; | |
130 | struct msgbuf_completion_hdr compl_hdr; | |
131 | __le16 write_idx; | |
132 | __le32 rsvd0[3]; | |
133 | }; | |
134 | ||
c988b782 RM |
135 | /* Data struct for the MSGBUF_TYPE_RING_STATUS */ |
136 | struct msgbuf_ring_status { | |
137 | struct msgbuf_common_hdr msg; | |
138 | struct msgbuf_completion_hdr compl_hdr; | |
139 | __le16 write_idx; | |
0c705161 | 140 | __le16 rsvd0[5]; |
c988b782 RM |
141 | }; |
142 | ||
9a1bb602 HM |
143 | struct msgbuf_rx_event { |
144 | struct msgbuf_common_hdr msg; | |
145 | struct msgbuf_completion_hdr compl_hdr; | |
146 | __le16 event_data_len; | |
147 | __le16 seqnum; | |
148 | __le16 rsvd0[4]; | |
149 | }; | |
150 | ||
151 | struct msgbuf_ioctl_resp_hdr { | |
152 | struct msgbuf_common_hdr msg; | |
153 | struct msgbuf_completion_hdr compl_hdr; | |
154 | __le16 resp_len; | |
155 | __le16 trans_id; | |
156 | __le32 cmd; | |
157 | __le32 rsvd0; | |
158 | }; | |
159 | ||
160 | struct msgbuf_tx_status { | |
161 | struct msgbuf_common_hdr msg; | |
162 | struct msgbuf_completion_hdr compl_hdr; | |
163 | __le16 metadata_len; | |
164 | __le16 tx_status; | |
165 | }; | |
166 | ||
167 | struct msgbuf_rx_complete { | |
168 | struct msgbuf_common_hdr msg; | |
169 | struct msgbuf_completion_hdr compl_hdr; | |
170 | __le16 metadata_len; | |
171 | __le16 data_len; | |
172 | __le16 data_offset; | |
173 | __le16 flags; | |
174 | __le32 rx_status_0; | |
175 | __le32 rx_status_1; | |
176 | __le32 rsvd0; | |
177 | }; | |
178 | ||
179 | struct msgbuf_tx_flowring_create_req { | |
180 | struct msgbuf_common_hdr msg; | |
181 | u8 da[ETH_ALEN]; | |
182 | u8 sa[ETH_ALEN]; | |
183 | u8 tid; | |
184 | u8 if_flags; | |
185 | __le16 flow_ring_id; | |
186 | u8 tc; | |
187 | u8 priority; | |
188 | __le16 int_vector; | |
189 | __le16 max_items; | |
190 | __le16 len_item; | |
191 | struct msgbuf_buf_addr flow_ring_addr; | |
192 | }; | |
193 | ||
194 | struct msgbuf_tx_flowring_delete_req { | |
195 | struct msgbuf_common_hdr msg; | |
196 | __le16 flow_ring_id; | |
197 | __le16 reason; | |
198 | __le32 rsvd0[7]; | |
199 | }; | |
200 | ||
201 | struct msgbuf_flowring_create_resp { | |
202 | struct msgbuf_common_hdr msg; | |
203 | struct msgbuf_completion_hdr compl_hdr; | |
204 | __le32 rsvd0[3]; | |
205 | }; | |
206 | ||
207 | struct msgbuf_flowring_delete_resp { | |
208 | struct msgbuf_common_hdr msg; | |
209 | struct msgbuf_completion_hdr compl_hdr; | |
210 | __le32 rsvd0[3]; | |
211 | }; | |
212 | ||
213 | struct msgbuf_flowring_flush_resp { | |
214 | struct msgbuf_common_hdr msg; | |
215 | struct msgbuf_completion_hdr compl_hdr; | |
216 | __le32 rsvd0[3]; | |
217 | }; | |
218 | ||
3ba06610 HM |
219 | struct brcmf_msgbuf_work_item { |
220 | struct list_head queue; | |
221 | u32 flowid; | |
222 | int ifidx; | |
223 | u8 sa[ETH_ALEN]; | |
224 | u8 da[ETH_ALEN]; | |
225 | }; | |
226 | ||
9a1bb602 HM |
227 | struct brcmf_msgbuf { |
228 | struct brcmf_pub *drvr; | |
229 | ||
230 | struct brcmf_commonring **commonrings; | |
231 | struct brcmf_commonring **flowrings; | |
232 | dma_addr_t *flowring_dma_handle; | |
be4b092c FL |
233 | |
234 | u16 max_flowrings; | |
235 | u16 max_submissionrings; | |
236 | u16 max_completionrings; | |
9a1bb602 HM |
237 | |
238 | u16 rx_dataoffset; | |
239 | u32 max_rxbufpost; | |
240 | u16 rx_metadata_offset; | |
241 | u32 rxbufpost; | |
242 | ||
243 | u32 max_ioctlrespbuf; | |
244 | u32 cur_ioctlrespbuf; | |
245 | u32 max_eventbuf; | |
246 | u32 cur_eventbuf; | |
247 | ||
248 | void *ioctbuf; | |
249 | dma_addr_t ioctbuf_handle; | |
250 | u32 ioctbuf_phys_hi; | |
251 | u32 ioctbuf_phys_lo; | |
ff0a6230 | 252 | int ioctl_resp_status; |
9a1bb602 HM |
253 | u32 ioctl_resp_ret_len; |
254 | u32 ioctl_resp_pktid; | |
255 | ||
256 | u16 data_seq_no; | |
257 | u16 ioctl_seq_no; | |
258 | u32 reqid; | |
259 | wait_queue_head_t ioctl_resp_wait; | |
260 | bool ctl_completed; | |
261 | ||
262 | struct brcmf_msgbuf_pktids *tx_pktids; | |
263 | struct brcmf_msgbuf_pktids *rx_pktids; | |
264 | struct brcmf_flowring *flow; | |
265 | ||
266 | struct workqueue_struct *txflow_wq; | |
267 | struct work_struct txflow_work; | |
268 | unsigned long *flow_map; | |
269 | unsigned long *txstatus_done_map; | |
3ba06610 HM |
270 | |
271 | struct work_struct flowring_work; | |
272 | spinlock_t flowring_work_lock; | |
273 | struct list_head work_queue; | |
9a1bb602 HM |
274 | }; |
275 | ||
276 | struct brcmf_msgbuf_pktid { | |
277 | atomic_t allocated; | |
278 | u16 data_offset; | |
279 | struct sk_buff *skb; | |
280 | dma_addr_t physaddr; | |
281 | }; | |
282 | ||
283 | struct brcmf_msgbuf_pktids { | |
284 | u32 array_size; | |
285 | u32 last_allocated_idx; | |
286 | enum dma_data_direction direction; | |
287 | struct brcmf_msgbuf_pktid *array; | |
288 | }; | |
289 | ||
9a1bb602 HM |
290 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf); |
291 | ||
292 | ||
293 | static struct brcmf_msgbuf_pktids * | |
294 | brcmf_msgbuf_init_pktids(u32 nr_array_entries, | |
295 | enum dma_data_direction direction) | |
296 | { | |
297 | struct brcmf_msgbuf_pktid *array; | |
298 | struct brcmf_msgbuf_pktids *pktids; | |
299 | ||
3ba06610 | 300 | array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL); |
9a1bb602 HM |
301 | if (!array) |
302 | return NULL; | |
303 | ||
3ba06610 | 304 | pktids = kzalloc(sizeof(*pktids), GFP_KERNEL); |
9a1bb602 HM |
305 | if (!pktids) { |
306 | kfree(array); | |
307 | return NULL; | |
308 | } | |
309 | pktids->array = array; | |
310 | pktids->array_size = nr_array_entries; | |
311 | ||
312 | return pktids; | |
313 | } | |
314 | ||
315 | ||
316 | static int | |
317 | brcmf_msgbuf_alloc_pktid(struct device *dev, | |
318 | struct brcmf_msgbuf_pktids *pktids, | |
319 | struct sk_buff *skb, u16 data_offset, | |
320 | dma_addr_t *physaddr, u32 *idx) | |
321 | { | |
322 | struct brcmf_msgbuf_pktid *array; | |
323 | u32 count; | |
324 | ||
325 | array = pktids->array; | |
326 | ||
327 | *physaddr = dma_map_single(dev, skb->data + data_offset, | |
328 | skb->len - data_offset, pktids->direction); | |
329 | ||
330 | if (dma_mapping_error(dev, *physaddr)) { | |
331 | brcmf_err("dma_map_single failed !!\n"); | |
332 | return -ENOMEM; | |
333 | } | |
334 | ||
335 | *idx = pktids->last_allocated_idx; | |
336 | ||
337 | count = 0; | |
338 | do { | |
339 | (*idx)++; | |
340 | if (*idx == pktids->array_size) | |
341 | *idx = 0; | |
342 | if (array[*idx].allocated.counter == 0) | |
343 | if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0) | |
344 | break; | |
345 | count++; | |
346 | } while (count < pktids->array_size); | |
347 | ||
348 | if (count == pktids->array_size) | |
349 | return -ENOMEM; | |
350 | ||
351 | array[*idx].data_offset = data_offset; | |
352 | array[*idx].physaddr = *physaddr; | |
353 | array[*idx].skb = skb; | |
354 | ||
355 | pktids->last_allocated_idx = *idx; | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
360 | ||
361 | static struct sk_buff * | |
362 | brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids, | |
363 | u32 idx) | |
364 | { | |
365 | struct brcmf_msgbuf_pktid *pktid; | |
366 | struct sk_buff *skb; | |
367 | ||
2d91c8ad | 368 | if (idx < 0 || idx >= pktids->array_size) { |
9a1bb602 HM |
369 | brcmf_err("Invalid packet id %d (max %d)\n", idx, |
370 | pktids->array_size); | |
371 | return NULL; | |
372 | } | |
373 | if (pktids->array[idx].allocated.counter) { | |
374 | pktid = &pktids->array[idx]; | |
375 | dma_unmap_single(dev, pktid->physaddr, | |
376 | pktid->skb->len - pktid->data_offset, | |
377 | pktids->direction); | |
378 | skb = pktid->skb; | |
379 | pktid->allocated.counter = 0; | |
380 | return skb; | |
381 | } else { | |
382 | brcmf_err("Invalid packet id %d (not in use)\n", idx); | |
383 | } | |
384 | ||
385 | return NULL; | |
386 | } | |
387 | ||
388 | ||
389 | static void | |
390 | brcmf_msgbuf_release_array(struct device *dev, | |
391 | struct brcmf_msgbuf_pktids *pktids) | |
392 | { | |
393 | struct brcmf_msgbuf_pktid *array; | |
394 | struct brcmf_msgbuf_pktid *pktid; | |
395 | u32 count; | |
396 | ||
397 | array = pktids->array; | |
398 | count = 0; | |
399 | do { | |
400 | if (array[count].allocated.counter) { | |
401 | pktid = &array[count]; | |
402 | dma_unmap_single(dev, pktid->physaddr, | |
403 | pktid->skb->len - pktid->data_offset, | |
404 | pktids->direction); | |
405 | brcmu_pkt_buf_free_skb(pktid->skb); | |
406 | } | |
407 | count++; | |
408 | } while (count < pktids->array_size); | |
409 | ||
410 | kfree(array); | |
411 | kfree(pktids); | |
412 | } | |
413 | ||
414 | ||
415 | static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf) | |
416 | { | |
417 | if (msgbuf->rx_pktids) | |
418 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, | |
419 | msgbuf->rx_pktids); | |
420 | if (msgbuf->tx_pktids) | |
421 | brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, | |
422 | msgbuf->tx_pktids); | |
423 | } | |
424 | ||
425 | ||
426 | static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx, | |
427 | uint cmd, void *buf, uint len) | |
428 | { | |
429 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
430 | struct brcmf_commonring *commonring; | |
431 | struct msgbuf_ioctl_req_hdr *request; | |
432 | u16 buf_len; | |
433 | void *ret_ptr; | |
434 | int err; | |
435 | ||
436 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
437 | brcmf_commonring_lock(commonring); | |
438 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
439 | if (!ret_ptr) { | |
dcb1471b | 440 | bphy_err(drvr, "Failed to reserve space in commonring\n"); |
9a1bb602 HM |
441 | brcmf_commonring_unlock(commonring); |
442 | return -ENOMEM; | |
443 | } | |
444 | ||
445 | msgbuf->reqid++; | |
446 | ||
447 | request = (struct msgbuf_ioctl_req_hdr *)ret_ptr; | |
448 | request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ; | |
449 | request->msg.ifidx = (u8)ifidx; | |
450 | request->msg.flags = 0; | |
451 | request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID); | |
452 | request->cmd = cpu_to_le32(cmd); | |
453 | request->output_buf_len = cpu_to_le16(len); | |
454 | request->trans_id = cpu_to_le16(msgbuf->reqid); | |
455 | ||
456 | buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE); | |
457 | request->input_buf_len = cpu_to_le16(buf_len); | |
458 | request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi); | |
459 | request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo); | |
460 | if (buf) | |
461 | memcpy(msgbuf->ioctbuf, buf, buf_len); | |
462 | else | |
463 | memset(msgbuf->ioctbuf, 0, buf_len); | |
9a1bb602 HM |
464 | |
465 | err = brcmf_commonring_write_complete(commonring); | |
466 | brcmf_commonring_unlock(commonring); | |
467 | ||
468 | return err; | |
469 | } | |
470 | ||
471 | ||
472 | static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf) | |
473 | { | |
474 | return wait_event_timeout(msgbuf->ioctl_resp_wait, | |
475 | msgbuf->ctl_completed, | |
63ce3d5d | 476 | MSGBUF_IOCTL_RESP_TIMEOUT); |
9a1bb602 HM |
477 | } |
478 | ||
479 | ||
480 | static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf) | |
481 | { | |
d375bc8a | 482 | msgbuf->ctl_completed = true; |
a7decc44 | 483 | wake_up(&msgbuf->ioctl_resp_wait); |
9a1bb602 HM |
484 | } |
485 | ||
486 | ||
487 | static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx, | |
b69c1df4 | 488 | uint cmd, void *buf, uint len, int *fwerr) |
9a1bb602 HM |
489 | { |
490 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
491 | struct sk_buff *skb = NULL; | |
492 | int timeout; | |
493 | int err; | |
494 | ||
495 | brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len); | |
b69c1df4 | 496 | *fwerr = 0; |
9a1bb602 HM |
497 | msgbuf->ctl_completed = false; |
498 | err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len); | |
499 | if (err) | |
500 | return err; | |
501 | ||
502 | timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf); | |
503 | if (!timeout) { | |
dcb1471b | 504 | bphy_err(drvr, "Timeout on response for query command\n"); |
9a1bb602 HM |
505 | return -EIO; |
506 | } | |
507 | ||
508 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
509 | msgbuf->rx_pktids, | |
510 | msgbuf->ioctl_resp_pktid); | |
511 | if (msgbuf->ioctl_resp_ret_len != 0) { | |
7d072b40 | 512 | if (!skb) |
9a1bb602 | 513 | return -EBADF; |
7d072b40 | 514 | |
9a1bb602 HM |
515 | memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ? |
516 | len : msgbuf->ioctl_resp_ret_len); | |
517 | } | |
ac96ce83 | 518 | brcmu_pkt_buf_free_skb(skb); |
9a1bb602 | 519 | |
b69c1df4 AVS |
520 | *fwerr = msgbuf->ioctl_resp_status; |
521 | return 0; | |
9a1bb602 HM |
522 | } |
523 | ||
524 | ||
525 | static int brcmf_msgbuf_set_dcmd(struct brcmf_pub *drvr, int ifidx, | |
b69c1df4 | 526 | uint cmd, void *buf, uint len, int *fwerr) |
9a1bb602 | 527 | { |
b69c1df4 | 528 | return brcmf_msgbuf_query_dcmd(drvr, ifidx, cmd, buf, len, fwerr); |
9a1bb602 HM |
529 | } |
530 | ||
531 | ||
532 | static int brcmf_msgbuf_hdrpull(struct brcmf_pub *drvr, bool do_fws, | |
796cfb65 | 533 | struct sk_buff *skb, struct brcmf_if **ifp) |
9a1bb602 HM |
534 | { |
535 | return -ENODEV; | |
536 | } | |
537 | ||
bbd1f932 AS |
538 | static void brcmf_msgbuf_rxreorder(struct brcmf_if *ifp, struct sk_buff *skb) |
539 | { | |
540 | } | |
9a1bb602 HM |
541 | |
542 | static void | |
543 | brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid) | |
544 | { | |
545 | u32 dma_sz; | |
546 | void *dma_buf; | |
547 | ||
548 | brcmf_dbg(MSGBUF, "Removing flowring %d\n", flowid); | |
549 | ||
550 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; | |
551 | dma_buf = msgbuf->flowrings[flowid]->buf_addr; | |
552 | dma_free_coherent(msgbuf->drvr->bus_if->dev, dma_sz, dma_buf, | |
553 | msgbuf->flowring_dma_handle[flowid]); | |
554 | ||
555 | brcmf_flowring_delete(msgbuf->flow, flowid); | |
556 | } | |
557 | ||
558 | ||
3ba06610 HM |
559 | static struct brcmf_msgbuf_work_item * |
560 | brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf) | |
561 | { | |
562 | struct brcmf_msgbuf_work_item *work = NULL; | |
563 | ulong flags; | |
564 | ||
565 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); | |
566 | if (!list_empty(&msgbuf->work_queue)) { | |
567 | work = list_first_entry(&msgbuf->work_queue, | |
568 | struct brcmf_msgbuf_work_item, queue); | |
569 | list_del(&work->queue); | |
570 | } | |
571 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); | |
572 | ||
573 | return work; | |
574 | } | |
575 | ||
576 | ||
577 | static u32 | |
578 | brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf, | |
579 | struct brcmf_msgbuf_work_item *work) | |
9a1bb602 | 580 | { |
dcb1471b | 581 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 | 582 | struct msgbuf_tx_flowring_create_req *create; |
9a1bb602 HM |
583 | struct brcmf_commonring *commonring; |
584 | void *ret_ptr; | |
585 | u32 flowid; | |
586 | void *dma_buf; | |
587 | u32 dma_sz; | |
83297aaa | 588 | u64 address; |
9a1bb602 HM |
589 | int err; |
590 | ||
3ba06610 | 591 | flowid = work->flowid; |
9a1bb602 | 592 | dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
9a1bb602 HM |
593 | dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz, |
594 | &msgbuf->flowring_dma_handle[flowid], | |
3ba06610 | 595 | GFP_KERNEL); |
9a1bb602 | 596 | if (!dma_buf) { |
dcb1471b | 597 | bphy_err(drvr, "dma_alloc_coherent failed\n"); |
9a1bb602 HM |
598 | brcmf_flowring_delete(msgbuf->flow, flowid); |
599 | return BRCMF_FLOWRING_INVALID_ID; | |
600 | } | |
601 | ||
602 | brcmf_commonring_config(msgbuf->flowrings[flowid], | |
603 | BRCMF_H2D_TXFLOWRING_MAX_ITEM, | |
604 | BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf); | |
605 | ||
606 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
607 | brcmf_commonring_lock(commonring); | |
608 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
609 | if (!ret_ptr) { | |
dcb1471b | 610 | bphy_err(drvr, "Failed to reserve space in commonring\n"); |
9a1bb602 HM |
611 | brcmf_commonring_unlock(commonring); |
612 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
613 | return BRCMF_FLOWRING_INVALID_ID; | |
614 | } | |
615 | ||
616 | create = (struct msgbuf_tx_flowring_create_req *)ret_ptr; | |
617 | create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE; | |
3ba06610 | 618 | create->msg.ifidx = work->ifidx; |
9a1bb602 HM |
619 | create->msg.request_id = 0; |
620 | create->tid = brcmf_flowring_tid(msgbuf->flow, flowid); | |
621 | create->flow_ring_id = cpu_to_le16(flowid + | |
be4b092c | 622 | BRCMF_H2D_MSGRING_FLOWRING_IDSTART); |
3ba06610 HM |
623 | memcpy(create->sa, work->sa, ETH_ALEN); |
624 | memcpy(create->da, work->da, ETH_ALEN); | |
83297aaa | 625 | address = (u64)msgbuf->flowring_dma_handle[flowid]; |
9a1bb602 HM |
626 | create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32); |
627 | create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff); | |
628 | create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM); | |
629 | create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE); | |
630 | ||
631 | brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n", | |
3ba06610 | 632 | flowid, work->da, create->tid, work->ifidx); |
9a1bb602 HM |
633 | |
634 | err = brcmf_commonring_write_complete(commonring); | |
635 | brcmf_commonring_unlock(commonring); | |
636 | if (err) { | |
dcb1471b | 637 | bphy_err(drvr, "Failed to write commonring\n"); |
9a1bb602 HM |
638 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
639 | return BRCMF_FLOWRING_INVALID_ID; | |
640 | } | |
641 | ||
642 | return flowid; | |
643 | } | |
644 | ||
645 | ||
3ba06610 HM |
646 | static void brcmf_msgbuf_flowring_worker(struct work_struct *work) |
647 | { | |
648 | struct brcmf_msgbuf *msgbuf; | |
649 | struct brcmf_msgbuf_work_item *create; | |
650 | ||
651 | msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work); | |
652 | ||
653 | while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) { | |
654 | brcmf_msgbuf_flowring_create_worker(msgbuf, create); | |
655 | kfree(create); | |
656 | } | |
657 | } | |
658 | ||
659 | ||
660 | static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx, | |
661 | struct sk_buff *skb) | |
662 | { | |
663 | struct brcmf_msgbuf_work_item *create; | |
664 | struct ethhdr *eh = (struct ethhdr *)(skb->data); | |
665 | u32 flowid; | |
666 | ulong flags; | |
667 | ||
668 | create = kzalloc(sizeof(*create), GFP_ATOMIC); | |
669 | if (create == NULL) | |
670 | return BRCMF_FLOWRING_INVALID_ID; | |
671 | ||
672 | flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest, | |
673 | skb->priority, ifidx); | |
674 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { | |
675 | kfree(create); | |
676 | return flowid; | |
677 | } | |
678 | ||
679 | create->flowid = flowid; | |
680 | create->ifidx = ifidx; | |
681 | memcpy(create->sa, eh->h_source, ETH_ALEN); | |
682 | memcpy(create->da, eh->h_dest, ETH_ALEN); | |
683 | ||
684 | spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); | |
685 | list_add_tail(&create->queue, &msgbuf->work_queue); | |
686 | spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); | |
687 | schedule_work(&msgbuf->flowring_work); | |
688 | ||
689 | return flowid; | |
690 | } | |
691 | ||
692 | ||
19c8f421 | 693 | static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u16 flowid) |
9a1bb602 HM |
694 | { |
695 | struct brcmf_flowring *flow = msgbuf->flow; | |
dcb1471b | 696 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
697 | struct brcmf_commonring *commonring; |
698 | void *ret_ptr; | |
699 | u32 count; | |
700 | struct sk_buff *skb; | |
701 | dma_addr_t physaddr; | |
702 | u32 pktid; | |
703 | struct msgbuf_tx_msghdr *tx_msghdr; | |
83297aaa | 704 | u64 address; |
9a1bb602 HM |
705 | |
706 | commonring = msgbuf->flowrings[flowid]; | |
707 | if (!brcmf_commonring_write_available(commonring)) | |
708 | return; | |
709 | ||
710 | brcmf_commonring_lock(commonring); | |
711 | ||
712 | count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1; | |
713 | while (brcmf_flowring_qlen(flow, flowid)) { | |
714 | skb = brcmf_flowring_dequeue(flow, flowid); | |
715 | if (skb == NULL) { | |
dcb1471b RM |
716 | bphy_err(drvr, "No SKB, but qlen %d\n", |
717 | brcmf_flowring_qlen(flow, flowid)); | |
9a1bb602 HM |
718 | break; |
719 | } | |
720 | skb_orphan(skb); | |
721 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
722 | msgbuf->tx_pktids, skb, ETH_HLEN, | |
723 | &physaddr, &pktid)) { | |
724 | brcmf_flowring_reinsert(flow, flowid, skb); | |
dcb1471b | 725 | bphy_err(drvr, "No PKTID available !!\n"); |
9a1bb602 HM |
726 | break; |
727 | } | |
728 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
729 | if (!ret_ptr) { | |
730 | brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
731 | msgbuf->tx_pktids, pktid); | |
732 | brcmf_flowring_reinsert(flow, flowid, skb); | |
733 | break; | |
734 | } | |
735 | count++; | |
736 | ||
737 | tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr; | |
738 | ||
739 | tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST; | |
2d91c8ad | 740 | tx_msghdr->msg.request_id = cpu_to_le32(pktid + 1); |
9a1bb602 HM |
741 | tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid); |
742 | tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3; | |
743 | tx_msghdr->flags |= (skb->priority & 0x07) << | |
744 | BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT; | |
745 | tx_msghdr->seg_cnt = 1; | |
746 | memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN); | |
747 | tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN); | |
83297aaa | 748 | address = (u64)physaddr; |
9a1bb602 HM |
749 | tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32); |
750 | tx_msghdr->data_buf_addr.low_addr = | |
751 | cpu_to_le32(address & 0xffffffff); | |
752 | tx_msghdr->metadata_buf_len = 0; | |
753 | tx_msghdr->metadata_buf_addr.high_addr = 0; | |
754 | tx_msghdr->metadata_buf_addr.low_addr = 0; | |
5ef1e604 | 755 | atomic_inc(&commonring->outstanding_tx); |
9a1bb602 HM |
756 | if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) { |
757 | brcmf_commonring_write_complete(commonring); | |
758 | count = 0; | |
759 | } | |
760 | } | |
761 | if (count) | |
762 | brcmf_commonring_write_complete(commonring); | |
763 | brcmf_commonring_unlock(commonring); | |
764 | } | |
765 | ||
766 | ||
767 | static void brcmf_msgbuf_txflow_worker(struct work_struct *worker) | |
768 | { | |
769 | struct brcmf_msgbuf *msgbuf; | |
770 | u32 flowid; | |
771 | ||
772 | msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work); | |
be4b092c | 773 | for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->max_flowrings) { |
9a1bb602 HM |
774 | clear_bit(flowid, msgbuf->flow_map); |
775 | brcmf_msgbuf_txflow(msgbuf, flowid); | |
776 | } | |
777 | } | |
778 | ||
779 | ||
5ef1e604 HM |
780 | static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid, |
781 | bool force) | |
9a1bb602 | 782 | { |
5ef1e604 HM |
783 | struct brcmf_commonring *commonring; |
784 | ||
9a1bb602 | 785 | set_bit(flowid, msgbuf->flow_map); |
5ef1e604 HM |
786 | commonring = msgbuf->flowrings[flowid]; |
787 | if ((force) || (atomic_read(&commonring->outstanding_tx) < | |
788 | BRCMF_MSGBUF_DELAY_TXWORKER_THRS)) | |
789 | queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work); | |
9a1bb602 HM |
790 | |
791 | return 0; | |
792 | } | |
793 | ||
794 | ||
b073ac1f RM |
795 | static int brcmf_msgbuf_tx_queue_data(struct brcmf_pub *drvr, int ifidx, |
796 | struct sk_buff *skb) | |
9a1bb602 HM |
797 | { |
798 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
799 | struct brcmf_flowring *flow = msgbuf->flow; | |
800 | struct ethhdr *eh = (struct ethhdr *)(skb->data); | |
801 | u32 flowid; | |
464a5f3f HM |
802 | u32 queue_count; |
803 | bool force; | |
9a1bb602 HM |
804 | |
805 | flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx); | |
806 | if (flowid == BRCMF_FLOWRING_INVALID_ID) { | |
807 | flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb); | |
808 | if (flowid == BRCMF_FLOWRING_INVALID_ID) | |
809 | return -ENOMEM; | |
810 | } | |
464a5f3f HM |
811 | queue_count = brcmf_flowring_enqueue(flow, flowid, skb); |
812 | force = ((queue_count % BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) == 0); | |
813 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, force); | |
9a1bb602 HM |
814 | |
815 | return 0; | |
816 | } | |
817 | ||
818 | ||
819 | static void | |
820 | brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx, | |
821 | enum proto_addr_mode addr_mode) | |
822 | { | |
823 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
824 | ||
825 | brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode); | |
826 | } | |
827 | ||
828 | ||
829 | static void | |
830 | brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) | |
831 | { | |
832 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
833 | ||
834 | brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer); | |
835 | } | |
836 | ||
837 | ||
70b7d94b HM |
838 | static void |
839 | brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) | |
840 | { | |
841 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
842 | ||
843 | brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer); | |
844 | } | |
845 | ||
846 | ||
9a1bb602 HM |
847 | static void |
848 | brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf) | |
849 | { | |
850 | struct msgbuf_ioctl_resp_hdr *ioctl_resp; | |
851 | ||
852 | ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf; | |
853 | ||
ff0a6230 HM |
854 | msgbuf->ioctl_resp_status = |
855 | (s16)le16_to_cpu(ioctl_resp->compl_hdr.status); | |
9a1bb602 HM |
856 | msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len); |
857 | msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id); | |
858 | ||
859 | brcmf_msgbuf_ioctl_resp_wake(msgbuf); | |
860 | ||
861 | if (msgbuf->cur_ioctlrespbuf) | |
862 | msgbuf->cur_ioctlrespbuf--; | |
863 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); | |
864 | } | |
865 | ||
866 | ||
867 | static void | |
868 | brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf) | |
869 | { | |
5ef1e604 | 870 | struct brcmf_commonring *commonring; |
9a1bb602 HM |
871 | struct msgbuf_tx_status *tx_status; |
872 | u32 idx; | |
873 | struct sk_buff *skb; | |
874 | u16 flowid; | |
875 | ||
876 | tx_status = (struct msgbuf_tx_status *)buf; | |
2d91c8ad | 877 | idx = le32_to_cpu(tx_status->msg.request_id) - 1; |
9a1bb602 | 878 | flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id); |
be4b092c | 879 | flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9a1bb602 HM |
880 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
881 | msgbuf->tx_pktids, idx); | |
7d072b40 | 882 | if (!skb) |
9a1bb602 | 883 | return; |
9a1bb602 HM |
884 | |
885 | set_bit(flowid, msgbuf->txstatus_done_map); | |
5ef1e604 HM |
886 | commonring = msgbuf->flowrings[flowid]; |
887 | atomic_dec(&commonring->outstanding_tx); | |
9a1bb602 | 888 | |
054e68ad AS |
889 | brcmf_txfinalize(brcmf_get_ifp(msgbuf->drvr, tx_status->msg.ifidx), |
890 | skb, true); | |
9a1bb602 HM |
891 | } |
892 | ||
893 | ||
894 | static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count) | |
895 | { | |
dcb1471b | 896 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
897 | struct brcmf_commonring *commonring; |
898 | void *ret_ptr; | |
899 | struct sk_buff *skb; | |
900 | u16 alloced; | |
901 | u32 pktlen; | |
902 | dma_addr_t physaddr; | |
903 | struct msgbuf_rx_bufpost *rx_bufpost; | |
83297aaa | 904 | u64 address; |
9a1bb602 HM |
905 | u32 pktid; |
906 | u32 i; | |
907 | ||
908 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; | |
909 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, | |
910 | count, | |
911 | &alloced); | |
912 | if (!ret_ptr) { | |
d2e2472c | 913 | brcmf_dbg(MSGBUF, "Failed to reserve space in commonring\n"); |
9a1bb602 HM |
914 | return 0; |
915 | } | |
916 | ||
917 | for (i = 0; i < alloced; i++) { | |
918 | rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr; | |
919 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); | |
920 | ||
921 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); | |
922 | ||
923 | if (skb == NULL) { | |
dcb1471b | 924 | bphy_err(drvr, "Failed to alloc SKB\n"); |
9a1bb602 HM |
925 | brcmf_commonring_write_cancel(commonring, alloced - i); |
926 | break; | |
927 | } | |
928 | ||
929 | pktlen = skb->len; | |
930 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
931 | msgbuf->rx_pktids, skb, 0, | |
932 | &physaddr, &pktid)) { | |
933 | dev_kfree_skb_any(skb); | |
dcb1471b | 934 | bphy_err(drvr, "No PKTID available !!\n"); |
9a1bb602 HM |
935 | brcmf_commonring_write_cancel(commonring, alloced - i); |
936 | break; | |
937 | } | |
938 | ||
939 | if (msgbuf->rx_metadata_offset) { | |
83297aaa | 940 | address = (u64)physaddr; |
9a1bb602 HM |
941 | rx_bufpost->metadata_buf_len = |
942 | cpu_to_le16(msgbuf->rx_metadata_offset); | |
943 | rx_bufpost->metadata_buf_addr.high_addr = | |
944 | cpu_to_le32(address >> 32); | |
945 | rx_bufpost->metadata_buf_addr.low_addr = | |
946 | cpu_to_le32(address & 0xffffffff); | |
947 | ||
948 | skb_pull(skb, msgbuf->rx_metadata_offset); | |
949 | pktlen = skb->len; | |
950 | physaddr += msgbuf->rx_metadata_offset; | |
951 | } | |
952 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST; | |
953 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); | |
954 | ||
83297aaa | 955 | address = (u64)physaddr; |
9a1bb602 HM |
956 | rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen); |
957 | rx_bufpost->data_buf_addr.high_addr = | |
958 | cpu_to_le32(address >> 32); | |
959 | rx_bufpost->data_buf_addr.low_addr = | |
960 | cpu_to_le32(address & 0xffffffff); | |
961 | ||
962 | ret_ptr += brcmf_commonring_len_item(commonring); | |
963 | } | |
964 | ||
965 | if (i) | |
966 | brcmf_commonring_write_complete(commonring); | |
967 | ||
968 | return i; | |
969 | } | |
970 | ||
971 | ||
972 | static void | |
973 | brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf) | |
974 | { | |
975 | u32 fillbufs; | |
976 | u32 retcount; | |
977 | ||
978 | fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost; | |
979 | ||
980 | while (fillbufs) { | |
981 | retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs); | |
982 | if (!retcount) | |
983 | break; | |
984 | msgbuf->rxbufpost += retcount; | |
985 | fillbufs -= retcount; | |
986 | } | |
987 | } | |
988 | ||
989 | ||
990 | static void | |
991 | brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt) | |
992 | { | |
993 | msgbuf->rxbufpost -= rxcnt; | |
994 | if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost - | |
995 | BRCMF_MSGBUF_RXBUFPOST_THRESHOLD)) | |
996 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); | |
997 | } | |
998 | ||
999 | ||
1000 | static u32 | |
1001 | brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf, | |
1002 | u32 count) | |
1003 | { | |
dcb1471b | 1004 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
1005 | struct brcmf_commonring *commonring; |
1006 | void *ret_ptr; | |
1007 | struct sk_buff *skb; | |
1008 | u16 alloced; | |
1009 | u32 pktlen; | |
1010 | dma_addr_t physaddr; | |
1011 | struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost; | |
83297aaa | 1012 | u64 address; |
9a1bb602 HM |
1013 | u32 pktid; |
1014 | u32 i; | |
1015 | ||
1016 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1017 | brcmf_commonring_lock(commonring); | |
1018 | ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, | |
1019 | count, | |
1020 | &alloced); | |
1021 | if (!ret_ptr) { | |
dcb1471b | 1022 | bphy_err(drvr, "Failed to reserve space in commonring\n"); |
9a1bb602 HM |
1023 | brcmf_commonring_unlock(commonring); |
1024 | return 0; | |
1025 | } | |
1026 | ||
1027 | for (i = 0; i < alloced; i++) { | |
1028 | rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr; | |
1029 | memset(rx_bufpost, 0, sizeof(*rx_bufpost)); | |
1030 | ||
1031 | skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); | |
1032 | ||
1033 | if (skb == NULL) { | |
dcb1471b | 1034 | bphy_err(drvr, "Failed to alloc SKB\n"); |
9a1bb602 HM |
1035 | brcmf_commonring_write_cancel(commonring, alloced - i); |
1036 | break; | |
1037 | } | |
1038 | ||
1039 | pktlen = skb->len; | |
1040 | if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, | |
1041 | msgbuf->rx_pktids, skb, 0, | |
1042 | &physaddr, &pktid)) { | |
1043 | dev_kfree_skb_any(skb); | |
dcb1471b | 1044 | bphy_err(drvr, "No PKTID available !!\n"); |
9a1bb602 HM |
1045 | brcmf_commonring_write_cancel(commonring, alloced - i); |
1046 | break; | |
1047 | } | |
1048 | if (event_buf) | |
1049 | rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST; | |
1050 | else | |
1051 | rx_bufpost->msg.msgtype = | |
1052 | MSGBUF_TYPE_IOCTLRESP_BUF_POST; | |
1053 | rx_bufpost->msg.request_id = cpu_to_le32(pktid); | |
1054 | ||
83297aaa | 1055 | address = (u64)physaddr; |
9a1bb602 HM |
1056 | rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen); |
1057 | rx_bufpost->host_buf_addr.high_addr = | |
1058 | cpu_to_le32(address >> 32); | |
1059 | rx_bufpost->host_buf_addr.low_addr = | |
1060 | cpu_to_le32(address & 0xffffffff); | |
1061 | ||
1062 | ret_ptr += brcmf_commonring_len_item(commonring); | |
1063 | } | |
1064 | ||
1065 | if (i) | |
1066 | brcmf_commonring_write_complete(commonring); | |
1067 | ||
1068 | brcmf_commonring_unlock(commonring); | |
1069 | ||
1070 | return i; | |
1071 | } | |
1072 | ||
1073 | ||
1074 | static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf) | |
1075 | { | |
1076 | u32 count; | |
1077 | ||
1078 | count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf; | |
1079 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count); | |
1080 | msgbuf->cur_ioctlrespbuf += count; | |
1081 | } | |
1082 | ||
1083 | ||
1084 | static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf) | |
1085 | { | |
1086 | u32 count; | |
1087 | ||
1088 | count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf; | |
1089 | count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count); | |
1090 | msgbuf->cur_eventbuf += count; | |
1091 | } | |
1092 | ||
1093 | ||
9a1bb602 HM |
1094 | static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) |
1095 | { | |
dcb1471b | 1096 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
1097 | struct msgbuf_rx_event *event; |
1098 | u32 idx; | |
1099 | u16 buflen; | |
1100 | struct sk_buff *skb; | |
c56caa9d | 1101 | struct brcmf_if *ifp; |
9a1bb602 HM |
1102 | |
1103 | event = (struct msgbuf_rx_event *)buf; | |
1104 | idx = le32_to_cpu(event->msg.request_id); | |
1105 | buflen = le16_to_cpu(event->event_data_len); | |
1106 | ||
1107 | if (msgbuf->cur_eventbuf) | |
1108 | msgbuf->cur_eventbuf--; | |
1109 | brcmf_msgbuf_rxbuf_event_post(msgbuf); | |
1110 | ||
1111 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
1112 | msgbuf->rx_pktids, idx); | |
1113 | if (!skb) | |
1114 | return; | |
1115 | ||
1116 | if (msgbuf->rx_dataoffset) | |
1117 | skb_pull(skb, msgbuf->rx_dataoffset); | |
1118 | ||
1119 | skb_trim(skb, buflen); | |
1120 | ||
c56caa9d FL |
1121 | ifp = brcmf_get_ifp(msgbuf->drvr, event->msg.ifidx); |
1122 | if (!ifp || !ifp->ndev) { | |
dcb1471b RM |
1123 | bphy_err(drvr, "Received pkt for invalid ifidx %d\n", |
1124 | event->msg.ifidx); | |
c56caa9d FL |
1125 | goto exit; |
1126 | } | |
1127 | ||
1128 | skb->protocol = eth_type_trans(skb, ifp->ndev); | |
1129 | ||
a4176ec3 | 1130 | brcmf_fweh_process_skb(ifp->drvr, skb, 0); |
c56caa9d FL |
1131 | |
1132 | exit: | |
1133 | brcmu_pkt_buf_free_skb(skb); | |
9a1bb602 HM |
1134 | } |
1135 | ||
1136 | ||
1137 | static void | |
1138 | brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) | |
1139 | { | |
dcb1471b | 1140 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
1141 | struct msgbuf_rx_complete *rx_complete; |
1142 | struct sk_buff *skb; | |
1143 | u16 data_offset; | |
1144 | u16 buflen; | |
a8d76318 | 1145 | u16 flags; |
9a1bb602 | 1146 | u32 idx; |
c56caa9d | 1147 | struct brcmf_if *ifp; |
9a1bb602 HM |
1148 | |
1149 | brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1); | |
1150 | ||
1151 | rx_complete = (struct msgbuf_rx_complete *)buf; | |
1152 | data_offset = le16_to_cpu(rx_complete->data_offset); | |
1153 | buflen = le16_to_cpu(rx_complete->data_len); | |
1154 | idx = le32_to_cpu(rx_complete->msg.request_id); | |
a8d76318 | 1155 | flags = le16_to_cpu(rx_complete->flags); |
9a1bb602 HM |
1156 | |
1157 | skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, | |
1158 | msgbuf->rx_pktids, idx); | |
7d072b40 AS |
1159 | if (!skb) |
1160 | return; | |
9a1bb602 HM |
1161 | |
1162 | if (data_offset) | |
1163 | skb_pull(skb, data_offset); | |
1164 | else if (msgbuf->rx_dataoffset) | |
1165 | skb_pull(skb, msgbuf->rx_dataoffset); | |
1166 | ||
1167 | skb_trim(skb, buflen); | |
1168 | ||
a8d76318 RM |
1169 | if ((flags & BRCMF_MSGBUF_PKT_FLAGS_FRAME_MASK) == |
1170 | BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_11) { | |
1171 | ifp = msgbuf->drvr->mon_if; | |
1172 | ||
1173 | if (!ifp) { | |
dcb1471b | 1174 | bphy_err(drvr, "Received unexpected monitor pkt\n"); |
a8d76318 RM |
1175 | brcmu_pkt_buf_free_skb(skb); |
1176 | return; | |
1177 | } | |
1178 | ||
1179 | brcmf_netif_mon_rx(ifp, skb); | |
1180 | return; | |
1181 | } | |
1182 | ||
c56caa9d FL |
1183 | ifp = brcmf_get_ifp(msgbuf->drvr, rx_complete->msg.ifidx); |
1184 | if (!ifp || !ifp->ndev) { | |
dcb1471b RM |
1185 | bphy_err(drvr, "Received pkt for invalid ifidx %d\n", |
1186 | rx_complete->msg.ifidx); | |
c56caa9d FL |
1187 | brcmu_pkt_buf_free_skb(skb); |
1188 | return; | |
1189 | } | |
31143e29 FL |
1190 | |
1191 | skb->protocol = eth_type_trans(skb, ifp->ndev); | |
9c349892 | 1192 | brcmf_netif_rx(ifp, skb); |
9a1bb602 HM |
1193 | } |
1194 | ||
c9137749 RM |
1195 | static void brcmf_msgbuf_process_gen_status(struct brcmf_msgbuf *msgbuf, |
1196 | void *buf) | |
1197 | { | |
1198 | struct msgbuf_gen_status *gen_status = buf; | |
1199 | struct brcmf_pub *drvr = msgbuf->drvr; | |
1200 | int err; | |
1201 | ||
1202 | err = le16_to_cpu(gen_status->compl_hdr.status); | |
1203 | if (err) | |
1204 | bphy_err(drvr, "Firmware reported general error: %d\n", err); | |
1205 | } | |
1206 | ||
c988b782 RM |
1207 | static void brcmf_msgbuf_process_ring_status(struct brcmf_msgbuf *msgbuf, |
1208 | void *buf) | |
1209 | { | |
1210 | struct msgbuf_ring_status *ring_status = buf; | |
dcb1471b | 1211 | struct brcmf_pub *drvr = msgbuf->drvr; |
c988b782 RM |
1212 | int err; |
1213 | ||
1214 | err = le16_to_cpu(ring_status->compl_hdr.status); | |
1215 | if (err) { | |
1216 | int ring = le16_to_cpu(ring_status->compl_hdr.flow_ring_id); | |
1217 | ||
dcb1471b RM |
1218 | bphy_err(drvr, "Firmware reported ring %d error: %d\n", ring, |
1219 | err); | |
c988b782 RM |
1220 | } |
1221 | } | |
9a1bb602 HM |
1222 | |
1223 | static void | |
1224 | brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf, | |
1225 | void *buf) | |
1226 | { | |
dcb1471b | 1227 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
1228 | struct msgbuf_flowring_create_resp *flowring_create_resp; |
1229 | u16 status; | |
1230 | u16 flowid; | |
1231 | ||
1232 | flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf; | |
1233 | ||
1234 | flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id); | |
be4b092c | 1235 | flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9a1bb602 HM |
1236 | status = le16_to_cpu(flowring_create_resp->compl_hdr.status); |
1237 | ||
1238 | if (status) { | |
dcb1471b | 1239 | bphy_err(drvr, "Flowring creation failed, code %d\n", status); |
9a1bb602 HM |
1240 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
1241 | return; | |
1242 | } | |
1243 | brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid, | |
1244 | status); | |
1245 | ||
1246 | brcmf_flowring_open(msgbuf->flow, flowid); | |
1247 | ||
5ef1e604 | 1248 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); |
9a1bb602 HM |
1249 | } |
1250 | ||
1251 | ||
1252 | static void | |
1253 | brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf, | |
1254 | void *buf) | |
1255 | { | |
dcb1471b | 1256 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
1257 | struct msgbuf_flowring_delete_resp *flowring_delete_resp; |
1258 | u16 status; | |
1259 | u16 flowid; | |
1260 | ||
1261 | flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf; | |
1262 | ||
1263 | flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id); | |
be4b092c | 1264 | flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
9a1bb602 HM |
1265 | status = le16_to_cpu(flowring_delete_resp->compl_hdr.status); |
1266 | ||
1267 | if (status) { | |
dcb1471b | 1268 | bphy_err(drvr, "Flowring deletion failed, code %d\n", status); |
9a1bb602 HM |
1269 | brcmf_flowring_delete(msgbuf->flow, flowid); |
1270 | return; | |
1271 | } | |
1272 | brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid, | |
1273 | status); | |
1274 | ||
1275 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1276 | } | |
1277 | ||
1278 | ||
1279 | static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf) | |
1280 | { | |
dcb1471b | 1281 | struct brcmf_pub *drvr = msgbuf->drvr; |
9a1bb602 HM |
1282 | struct msgbuf_common_hdr *msg; |
1283 | ||
1284 | msg = (struct msgbuf_common_hdr *)buf; | |
1285 | switch (msg->msgtype) { | |
c9137749 RM |
1286 | case MSGBUF_TYPE_GEN_STATUS: |
1287 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_GEN_STATUS\n"); | |
1288 | brcmf_msgbuf_process_gen_status(msgbuf, buf); | |
1289 | break; | |
c988b782 RM |
1290 | case MSGBUF_TYPE_RING_STATUS: |
1291 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RING_STATUS\n"); | |
1292 | brcmf_msgbuf_process_ring_status(msgbuf, buf); | |
1293 | break; | |
9a1bb602 HM |
1294 | case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT: |
1295 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n"); | |
1296 | brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf); | |
1297 | break; | |
1298 | case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT: | |
1299 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n"); | |
1300 | brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf); | |
1301 | break; | |
1302 | case MSGBUF_TYPE_IOCTLPTR_REQ_ACK: | |
1303 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n"); | |
1304 | break; | |
1305 | case MSGBUF_TYPE_IOCTL_CMPLT: | |
1306 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n"); | |
1307 | brcmf_msgbuf_process_ioctl_complete(msgbuf, buf); | |
1308 | break; | |
1309 | case MSGBUF_TYPE_WL_EVENT: | |
1310 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n"); | |
1311 | brcmf_msgbuf_process_event(msgbuf, buf); | |
1312 | break; | |
1313 | case MSGBUF_TYPE_TX_STATUS: | |
1314 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n"); | |
1315 | brcmf_msgbuf_process_txstatus(msgbuf, buf); | |
1316 | break; | |
1317 | case MSGBUF_TYPE_RX_CMPLT: | |
1318 | brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n"); | |
1319 | brcmf_msgbuf_process_rx_complete(msgbuf, buf); | |
1320 | break; | |
1321 | default: | |
dcb1471b | 1322 | bphy_err(drvr, "Unsupported msgtype %d\n", msg->msgtype); |
9a1bb602 HM |
1323 | break; |
1324 | } | |
1325 | } | |
1326 | ||
1327 | ||
1328 | static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf, | |
1329 | struct brcmf_commonring *commonring) | |
1330 | { | |
1331 | void *buf; | |
1332 | u16 count; | |
df738c2f | 1333 | u16 processed; |
9a1bb602 HM |
1334 | |
1335 | again: | |
1336 | buf = brcmf_commonring_get_read_ptr(commonring, &count); | |
1337 | if (buf == NULL) | |
1338 | return; | |
1339 | ||
df738c2f | 1340 | processed = 0; |
9a1bb602 HM |
1341 | while (count) { |
1342 | brcmf_msgbuf_process_msgtype(msgbuf, | |
1343 | buf + msgbuf->rx_dataoffset); | |
1344 | buf += brcmf_commonring_len_item(commonring); | |
df738c2f HM |
1345 | processed++; |
1346 | if (processed == BRCMF_MSGBUF_UPDATE_RX_PTR_THRS) { | |
1347 | brcmf_commonring_read_complete(commonring, processed); | |
1348 | processed = 0; | |
1349 | } | |
9a1bb602 HM |
1350 | count--; |
1351 | } | |
df738c2f HM |
1352 | if (processed) |
1353 | brcmf_commonring_read_complete(commonring, processed); | |
9a1bb602 HM |
1354 | |
1355 | if (commonring->r_ptr == 0) | |
1356 | goto again; | |
1357 | } | |
1358 | ||
1359 | ||
1360 | int brcmf_proto_msgbuf_rx_trigger(struct device *dev) | |
1361 | { | |
1362 | struct brcmf_bus *bus_if = dev_get_drvdata(dev); | |
1363 | struct brcmf_pub *drvr = bus_if->drvr; | |
1364 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
5ef1e604 | 1365 | struct brcmf_commonring *commonring; |
9a1bb602 HM |
1366 | void *buf; |
1367 | u32 flowid; | |
5ef1e604 | 1368 | int qlen; |
9a1bb602 HM |
1369 | |
1370 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; | |
1371 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1372 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; | |
1373 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1374 | buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; | |
1375 | brcmf_msgbuf_process_rx(msgbuf, buf); | |
1376 | ||
1377 | for_each_set_bit(flowid, msgbuf->txstatus_done_map, | |
be4b092c | 1378 | msgbuf->max_flowrings) { |
9a1bb602 | 1379 | clear_bit(flowid, msgbuf->txstatus_done_map); |
5ef1e604 HM |
1380 | commonring = msgbuf->flowrings[flowid]; |
1381 | qlen = brcmf_flowring_qlen(msgbuf->flow, flowid); | |
1382 | if ((qlen > BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) || | |
1383 | ((qlen) && (atomic_read(&commonring->outstanding_tx) < | |
1384 | BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS))) | |
1385 | brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); | |
9a1bb602 HM |
1386 | } |
1387 | ||
1388 | return 0; | |
1389 | } | |
1390 | ||
1391 | ||
19c8f421 | 1392 | void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u16 flowid) |
9a1bb602 HM |
1393 | { |
1394 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
1395 | struct msgbuf_tx_flowring_delete_req *delete; | |
1396 | struct brcmf_commonring *commonring; | |
1397 | void *ret_ptr; | |
1398 | u8 ifidx; | |
1399 | int err; | |
1400 | ||
e0bfb960 AS |
1401 | /* no need to submit if firmware can not be reached */ |
1402 | if (drvr->bus_if->state != BRCMF_BUS_UP) { | |
1403 | brcmf_dbg(MSGBUF, "bus down, flowring will be removed\n"); | |
1404 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1405 | return; | |
1406 | } | |
1407 | ||
9a1bb602 HM |
1408 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
1409 | brcmf_commonring_lock(commonring); | |
1410 | ret_ptr = brcmf_commonring_reserve_for_write(commonring); | |
1411 | if (!ret_ptr) { | |
dcb1471b | 1412 | bphy_err(drvr, "FW unaware, flowring will be removed !!\n"); |
9a1bb602 HM |
1413 | brcmf_commonring_unlock(commonring); |
1414 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); | |
1415 | return; | |
1416 | } | |
1417 | ||
1418 | delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr; | |
1419 | ||
1420 | ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid); | |
1421 | ||
1422 | delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE; | |
1423 | delete->msg.ifidx = ifidx; | |
1424 | delete->msg.request_id = 0; | |
1425 | ||
1426 | delete->flow_ring_id = cpu_to_le16(flowid + | |
be4b092c | 1427 | BRCMF_H2D_MSGRING_FLOWRING_IDSTART); |
9a1bb602 HM |
1428 | delete->reason = 0; |
1429 | ||
1430 | brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n", | |
1431 | flowid, ifidx); | |
1432 | ||
1433 | err = brcmf_commonring_write_complete(commonring); | |
1434 | brcmf_commonring_unlock(commonring); | |
1435 | if (err) { | |
dcb1471b | 1436 | bphy_err(drvr, "Failed to submit RING_DELETE, flowring will be removed\n"); |
9a1bb602 HM |
1437 | brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
1438 | } | |
1439 | } | |
1440 | ||
2bb66a81 FL |
1441 | #ifdef DEBUG |
1442 | static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) | |
1443 | { | |
1444 | struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); | |
1445 | struct brcmf_pub *drvr = bus_if->drvr; | |
1446 | struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
1447 | struct brcmf_commonring *commonring; | |
1448 | u16 i; | |
1449 | struct brcmf_flowring_ring *ring; | |
1450 | struct brcmf_flowring_hash *hash; | |
1451 | ||
1452 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; | |
1453 | seq_printf(seq, "h2d_ctl_submit: rp %4u, wp %4u, depth %4u\n", | |
1454 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1455 | commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; | |
1456 | seq_printf(seq, "h2d_rx_submit: rp %4u, wp %4u, depth %4u\n", | |
1457 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1458 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; | |
1459 | seq_printf(seq, "d2h_ctl_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1460 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1461 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; | |
1462 | seq_printf(seq, "d2h_tx_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1463 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1464 | commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; | |
1465 | seq_printf(seq, "d2h_rx_cmplt: rp %4u, wp %4u, depth %4u\n", | |
1466 | commonring->r_ptr, commonring->w_ptr, commonring->depth); | |
1467 | ||
1468 | seq_printf(seq, "\nh2d_flowrings: depth %u\n", | |
1469 | BRCMF_H2D_TXFLOWRING_MAX_ITEM); | |
1470 | seq_puts(seq, "Active flowrings:\n"); | |
2bb66a81 FL |
1471 | for (i = 0; i < msgbuf->flow->nrofrings; i++) { |
1472 | if (!msgbuf->flow->rings[i]) | |
1473 | continue; | |
1474 | ring = msgbuf->flow->rings[i]; | |
1475 | if (ring->status != RING_OPEN) | |
1476 | continue; | |
1477 | commonring = msgbuf->flowrings[i]; | |
1478 | hash = &msgbuf->flow->hash[ring->hash_id]; | |
1479 | seq_printf(seq, "id %3u: rp %4u, wp %4u, qlen %4u, blocked %u\n" | |
1480 | " ifidx %u, fifo %u, da %pM\n", | |
1481 | i, commonring->r_ptr, commonring->w_ptr, | |
1482 | skb_queue_len(&ring->skblist), ring->blocked, | |
1483 | hash->ifidx, hash->fifo, hash->mac); | |
1484 | } | |
1485 | ||
1486 | return 0; | |
1487 | } | |
1488 | #else | |
1489 | static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) | |
1490 | { | |
1491 | return 0; | |
1492 | } | |
1493 | #endif | |
9a1bb602 | 1494 | |
34789d0c AVS |
1495 | static void brcmf_msgbuf_debugfs_create(struct brcmf_pub *drvr) |
1496 | { | |
1497 | brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read); | |
1498 | } | |
1499 | ||
9a1bb602 HM |
1500 | int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) |
1501 | { | |
1502 | struct brcmf_bus_msgbuf *if_msgbuf; | |
1503 | struct brcmf_msgbuf *msgbuf; | |
83297aaa | 1504 | u64 address; |
9a1bb602 HM |
1505 | u32 count; |
1506 | ||
1507 | if_msgbuf = drvr->bus_if->msgbuf; | |
19c8f421 | 1508 | |
be4b092c | 1509 | if (if_msgbuf->max_flowrings >= BRCMF_FLOWRING_HASHSIZE) { |
dcb1471b RM |
1510 | bphy_err(drvr, "driver not configured for this many flowrings %d\n", |
1511 | if_msgbuf->max_flowrings); | |
be4b092c | 1512 | if_msgbuf->max_flowrings = BRCMF_FLOWRING_HASHSIZE - 1; |
19c8f421 HM |
1513 | } |
1514 | ||
3ba06610 | 1515 | msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL); |
9a1bb602 HM |
1516 | if (!msgbuf) |
1517 | goto fail; | |
1518 | ||
1519 | msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow"); | |
1520 | if (msgbuf->txflow_wq == NULL) { | |
dcb1471b | 1521 | bphy_err(drvr, "workqueue creation failed\n"); |
9a1bb602 HM |
1522 | goto fail; |
1523 | } | |
1524 | INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker); | |
be4b092c | 1525 | count = BITS_TO_LONGS(if_msgbuf->max_flowrings); |
333c2aa0 | 1526 | count = count * sizeof(unsigned long); |
3ba06610 | 1527 | msgbuf->flow_map = kzalloc(count, GFP_KERNEL); |
9a1bb602 HM |
1528 | if (!msgbuf->flow_map) |
1529 | goto fail; | |
1530 | ||
3ba06610 | 1531 | msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL); |
9a1bb602 HM |
1532 | if (!msgbuf->txstatus_done_map) |
1533 | goto fail; | |
1534 | ||
1535 | msgbuf->drvr = drvr; | |
1536 | msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev, | |
1537 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1538 | &msgbuf->ioctbuf_handle, | |
3ba06610 | 1539 | GFP_KERNEL); |
9a1bb602 HM |
1540 | if (!msgbuf->ioctbuf) |
1541 | goto fail; | |
83297aaa | 1542 | address = (u64)msgbuf->ioctbuf_handle; |
9a1bb602 HM |
1543 | msgbuf->ioctbuf_phys_hi = address >> 32; |
1544 | msgbuf->ioctbuf_phys_lo = address & 0xffffffff; | |
1545 | ||
1546 | drvr->proto->hdrpull = brcmf_msgbuf_hdrpull; | |
1547 | drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd; | |
1548 | drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd; | |
b073ac1f | 1549 | drvr->proto->tx_queue_data = brcmf_msgbuf_tx_queue_data; |
9a1bb602 HM |
1550 | drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode; |
1551 | drvr->proto->delete_peer = brcmf_msgbuf_delete_peer; | |
70b7d94b | 1552 | drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer; |
bbd1f932 | 1553 | drvr->proto->rxreorder = brcmf_msgbuf_rxreorder; |
34789d0c | 1554 | drvr->proto->debugfs_create = brcmf_msgbuf_debugfs_create; |
9a1bb602 HM |
1555 | drvr->proto->pd = msgbuf; |
1556 | ||
1557 | init_waitqueue_head(&msgbuf->ioctl_resp_wait); | |
1558 | ||
1559 | msgbuf->commonrings = | |
1560 | (struct brcmf_commonring **)if_msgbuf->commonrings; | |
1561 | msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings; | |
be4b092c | 1562 | msgbuf->max_flowrings = if_msgbuf->max_flowrings; |
6396bb22 KC |
1563 | msgbuf->flowring_dma_handle = |
1564 | kcalloc(msgbuf->max_flowrings, | |
1565 | sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL); | |
2d116b88 AS |
1566 | if (!msgbuf->flowring_dma_handle) |
1567 | goto fail; | |
9a1bb602 HM |
1568 | |
1569 | msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset; | |
1570 | msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost; | |
1571 | ||
1572 | msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST; | |
1573 | msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST; | |
1574 | ||
1575 | msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS, | |
1576 | DMA_TO_DEVICE); | |
1577 | if (!msgbuf->tx_pktids) | |
1578 | goto fail; | |
1579 | msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS, | |
1580 | DMA_FROM_DEVICE); | |
1581 | if (!msgbuf->rx_pktids) | |
1582 | goto fail; | |
1583 | ||
1584 | msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev, | |
be4b092c | 1585 | if_msgbuf->max_flowrings); |
9a1bb602 HM |
1586 | if (!msgbuf->flow) |
1587 | goto fail; | |
1588 | ||
1589 | ||
1590 | brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n", | |
1591 | msgbuf->max_rxbufpost, msgbuf->max_eventbuf, | |
1592 | msgbuf->max_ioctlrespbuf); | |
1593 | count = 0; | |
1594 | do { | |
1595 | brcmf_msgbuf_rxbuf_data_fill(msgbuf); | |
1596 | if (msgbuf->max_rxbufpost != msgbuf->rxbufpost) | |
1597 | msleep(10); | |
1598 | else | |
1599 | break; | |
1600 | count++; | |
1601 | } while (count < 10); | |
1602 | brcmf_msgbuf_rxbuf_event_post(msgbuf); | |
1603 | brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); | |
1604 | ||
3ba06610 HM |
1605 | INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker); |
1606 | spin_lock_init(&msgbuf->flowring_work_lock); | |
1607 | INIT_LIST_HEAD(&msgbuf->work_queue); | |
1608 | ||
9a1bb602 HM |
1609 | return 0; |
1610 | ||
1611 | fail: | |
1612 | if (msgbuf) { | |
1613 | kfree(msgbuf->flow_map); | |
1614 | kfree(msgbuf->txstatus_done_map); | |
1615 | brcmf_msgbuf_release_pktids(msgbuf); | |
2d116b88 | 1616 | kfree(msgbuf->flowring_dma_handle); |
9a1bb602 HM |
1617 | if (msgbuf->ioctbuf) |
1618 | dma_free_coherent(drvr->bus_if->dev, | |
1619 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1620 | msgbuf->ioctbuf, | |
1621 | msgbuf->ioctbuf_handle); | |
f573a70b WY |
1622 | if (msgbuf->txflow_wq) |
1623 | destroy_workqueue(msgbuf->txflow_wq); | |
9a1bb602 HM |
1624 | kfree(msgbuf); |
1625 | } | |
1626 | return -ENOMEM; | |
1627 | } | |
1628 | ||
1629 | ||
1630 | void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr) | |
1631 | { | |
1632 | struct brcmf_msgbuf *msgbuf; | |
3ba06610 | 1633 | struct brcmf_msgbuf_work_item *work; |
9a1bb602 HM |
1634 | |
1635 | brcmf_dbg(TRACE, "Enter\n"); | |
1636 | if (drvr->proto->pd) { | |
1637 | msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; | |
3ba06610 HM |
1638 | cancel_work_sync(&msgbuf->flowring_work); |
1639 | while (!list_empty(&msgbuf->work_queue)) { | |
1640 | work = list_first_entry(&msgbuf->work_queue, | |
1641 | struct brcmf_msgbuf_work_item, | |
1642 | queue); | |
1643 | list_del(&work->queue); | |
1644 | kfree(work); | |
1645 | } | |
9a1bb602 HM |
1646 | kfree(msgbuf->flow_map); |
1647 | kfree(msgbuf->txstatus_done_map); | |
1648 | if (msgbuf->txflow_wq) | |
1649 | destroy_workqueue(msgbuf->txflow_wq); | |
1650 | ||
1651 | brcmf_flowring_detach(msgbuf->flow); | |
1652 | dma_free_coherent(drvr->bus_if->dev, | |
1653 | BRCMF_TX_IOCTL_MAX_MSG_SIZE, | |
1654 | msgbuf->ioctbuf, msgbuf->ioctbuf_handle); | |
1655 | brcmf_msgbuf_release_pktids(msgbuf); | |
2d116b88 | 1656 | kfree(msgbuf->flowring_dma_handle); |
9a1bb602 HM |
1657 | kfree(msgbuf); |
1658 | drvr->proto->pd = NULL; | |
1659 | } | |
1660 | } |