1 /* Copyright (c) 2014 Broadcom Corporation
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.
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.
16 /*******************************************************************************
17 * Communicates with the dongle by using dcmd codes.
18 * For certain dcmd codes, the dongle interprets string data from the host.
19 ******************************************************************************/
21 #include <linux/types.h>
22 #include <linux/netdevice.h>
24 #include <brcmu_utils.h>
25 #include <brcmu_wifi.h>
31 #include "commonring.h"
34 #include "tracepoint.h"
37 #define MSGBUF_IOCTL_RESP_TIMEOUT 2000
39 #define MSGBUF_TYPE_GEN_STATUS 0x1
40 #define MSGBUF_TYPE_RING_STATUS 0x2
41 #define MSGBUF_TYPE_FLOW_RING_CREATE 0x3
42 #define MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT 0x4
43 #define MSGBUF_TYPE_FLOW_RING_DELETE 0x5
44 #define MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT 0x6
45 #define MSGBUF_TYPE_FLOW_RING_FLUSH 0x7
46 #define MSGBUF_TYPE_FLOW_RING_FLUSH_CMPLT 0x8
47 #define MSGBUF_TYPE_IOCTLPTR_REQ 0x9
48 #define MSGBUF_TYPE_IOCTLPTR_REQ_ACK 0xA
49 #define MSGBUF_TYPE_IOCTLRESP_BUF_POST 0xB
50 #define MSGBUF_TYPE_IOCTL_CMPLT 0xC
51 #define MSGBUF_TYPE_EVENT_BUF_POST 0xD
52 #define MSGBUF_TYPE_WL_EVENT 0xE
53 #define MSGBUF_TYPE_TX_POST 0xF
54 #define MSGBUF_TYPE_TX_STATUS 0x10
55 #define MSGBUF_TYPE_RXBUF_POST 0x11
56 #define MSGBUF_TYPE_RX_CMPLT 0x12
57 #define MSGBUF_TYPE_LPBK_DMAXFER 0x13
58 #define MSGBUF_TYPE_LPBK_DMAXFER_CMPLT 0x14
60 #define NR_TX_PKTIDS 2048
61 #define NR_RX_PKTIDS 1024
63 #define BRCMF_IOCTL_REQ_PKTID 0xFFFE
65 #define BRCMF_MSGBUF_MAX_PKT_SIZE 2048
66 #define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD 32
67 #define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST 8
68 #define BRCMF_MSGBUF_MAX_EVENTBUF_POST 8
70 #define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3 0x01
71 #define BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT 5
73 #define BRCMF_MSGBUF_TX_FLUSH_CNT1 32
74 #define BRCMF_MSGBUF_TX_FLUSH_CNT2 96
77 struct msgbuf_common_hdr {
85 struct msgbuf_buf_addr {
90 struct msgbuf_ioctl_req_hdr {
91 struct msgbuf_common_hdr msg;
95 __le16 output_buf_len;
97 struct msgbuf_buf_addr req_buf_addr;
101 struct msgbuf_tx_msghdr {
102 struct msgbuf_common_hdr msg;
106 struct msgbuf_buf_addr metadata_buf_addr;
107 struct msgbuf_buf_addr data_buf_addr;
108 __le16 metadata_buf_len;
113 struct msgbuf_rx_bufpost {
114 struct msgbuf_common_hdr msg;
115 __le16 metadata_buf_len;
118 struct msgbuf_buf_addr metadata_buf_addr;
119 struct msgbuf_buf_addr data_buf_addr;
122 struct msgbuf_rx_ioctl_resp_or_event {
123 struct msgbuf_common_hdr msg;
126 struct msgbuf_buf_addr host_buf_addr;
130 struct msgbuf_completion_hdr {
135 struct msgbuf_rx_event {
136 struct msgbuf_common_hdr msg;
137 struct msgbuf_completion_hdr compl_hdr;
138 __le16 event_data_len;
143 struct msgbuf_ioctl_resp_hdr {
144 struct msgbuf_common_hdr msg;
145 struct msgbuf_completion_hdr compl_hdr;
152 struct msgbuf_tx_status {
153 struct msgbuf_common_hdr msg;
154 struct msgbuf_completion_hdr compl_hdr;
159 struct msgbuf_rx_complete {
160 struct msgbuf_common_hdr msg;
161 struct msgbuf_completion_hdr compl_hdr;
171 struct msgbuf_tx_flowring_create_req {
172 struct msgbuf_common_hdr msg;
183 struct msgbuf_buf_addr flow_ring_addr;
186 struct msgbuf_tx_flowring_delete_req {
187 struct msgbuf_common_hdr msg;
193 struct msgbuf_flowring_create_resp {
194 struct msgbuf_common_hdr msg;
195 struct msgbuf_completion_hdr compl_hdr;
199 struct msgbuf_flowring_delete_resp {
200 struct msgbuf_common_hdr msg;
201 struct msgbuf_completion_hdr compl_hdr;
205 struct msgbuf_flowring_flush_resp {
206 struct msgbuf_common_hdr msg;
207 struct msgbuf_completion_hdr compl_hdr;
211 struct brcmf_msgbuf {
212 struct brcmf_pub *drvr;
214 struct brcmf_commonring **commonrings;
215 struct brcmf_commonring **flowrings;
216 dma_addr_t *flowring_dma_handle;
221 u16 rx_metadata_offset;
224 u32 max_ioctlrespbuf;
225 u32 cur_ioctlrespbuf;
230 dma_addr_t ioctbuf_handle;
233 u32 ioctl_resp_status;
234 u32 ioctl_resp_ret_len;
235 u32 ioctl_resp_pktid;
240 wait_queue_head_t ioctl_resp_wait;
243 struct brcmf_msgbuf_pktids *tx_pktids;
244 struct brcmf_msgbuf_pktids *rx_pktids;
245 struct brcmf_flowring *flow;
247 struct workqueue_struct *txflow_wq;
248 struct work_struct txflow_work;
249 unsigned long *flow_map;
250 unsigned long *txstatus_done_map;
253 struct brcmf_msgbuf_pktid {
260 struct brcmf_msgbuf_pktids {
262 u32 last_allocated_idx;
263 enum dma_data_direction direction;
264 struct brcmf_msgbuf_pktid *array;
268 /* dma flushing needs implementation for mips and arm platforms. Should
269 * be put in util. Note, this is not real flushing. It is virtual non
270 * cached memory. Only write buffers should have to be drained. Though
271 * this may be different depending on platform......
273 #define brcmf_dma_flush(addr, len)
274 #define brcmf_dma_invalidate_cache(addr, len)
277 static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf);
280 static struct brcmf_msgbuf_pktids *
281 brcmf_msgbuf_init_pktids(u32 nr_array_entries,
282 enum dma_data_direction direction)
284 struct brcmf_msgbuf_pktid *array;
285 struct brcmf_msgbuf_pktids *pktids;
287 array = kcalloc(nr_array_entries, sizeof(*array), GFP_ATOMIC);
291 pktids = kzalloc(sizeof(*pktids), GFP_ATOMIC);
296 pktids->array = array;
297 pktids->array_size = nr_array_entries;
304 brcmf_msgbuf_alloc_pktid(struct device *dev,
305 struct brcmf_msgbuf_pktids *pktids,
306 struct sk_buff *skb, u16 data_offset,
307 dma_addr_t *physaddr, u32 *idx)
309 struct brcmf_msgbuf_pktid *array;
312 array = pktids->array;
314 *physaddr = dma_map_single(dev, skb->data + data_offset,
315 skb->len - data_offset, pktids->direction);
317 if (dma_mapping_error(dev, *physaddr)) {
318 brcmf_err("dma_map_single failed !!\n");
322 *idx = pktids->last_allocated_idx;
327 if (*idx == pktids->array_size)
329 if (array[*idx].allocated.counter == 0)
330 if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0)
333 } while (count < pktids->array_size);
335 if (count == pktids->array_size)
338 array[*idx].data_offset = data_offset;
339 array[*idx].physaddr = *physaddr;
340 array[*idx].skb = skb;
342 pktids->last_allocated_idx = *idx;
348 static struct sk_buff *
349 brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids,
352 struct brcmf_msgbuf_pktid *pktid;
355 if (idx >= pktids->array_size) {
356 brcmf_err("Invalid packet id %d (max %d)\n", idx,
360 if (pktids->array[idx].allocated.counter) {
361 pktid = &pktids->array[idx];
362 dma_unmap_single(dev, pktid->physaddr,
363 pktid->skb->len - pktid->data_offset,
366 pktid->allocated.counter = 0;
369 brcmf_err("Invalid packet id %d (not in use)\n", idx);
377 brcmf_msgbuf_release_array(struct device *dev,
378 struct brcmf_msgbuf_pktids *pktids)
380 struct brcmf_msgbuf_pktid *array;
381 struct brcmf_msgbuf_pktid *pktid;
384 array = pktids->array;
387 if (array[count].allocated.counter) {
388 pktid = &array[count];
389 dma_unmap_single(dev, pktid->physaddr,
390 pktid->skb->len - pktid->data_offset,
392 brcmu_pkt_buf_free_skb(pktid->skb);
395 } while (count < pktids->array_size);
402 static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf)
404 if (msgbuf->rx_pktids)
405 brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev,
407 if (msgbuf->tx_pktids)
408 brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev,
413 static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx,
414 uint cmd, void *buf, uint len)
416 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
417 struct brcmf_commonring *commonring;
418 struct msgbuf_ioctl_req_hdr *request;
423 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
424 brcmf_commonring_lock(commonring);
425 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
427 brcmf_err("Failed to reserve space in commonring\n");
428 brcmf_commonring_unlock(commonring);
434 request = (struct msgbuf_ioctl_req_hdr *)ret_ptr;
435 request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ;
436 request->msg.ifidx = (u8)ifidx;
437 request->msg.flags = 0;
438 request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID);
439 request->cmd = cpu_to_le32(cmd);
440 request->output_buf_len = cpu_to_le16(len);
441 request->trans_id = cpu_to_le16(msgbuf->reqid);
443 buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE);
444 request->input_buf_len = cpu_to_le16(buf_len);
445 request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi);
446 request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo);
448 memcpy(msgbuf->ioctbuf, buf, buf_len);
450 memset(msgbuf->ioctbuf, 0, buf_len);
451 brcmf_dma_flush(ioctl_buf, buf_len);
453 err = brcmf_commonring_write_complete(commonring);
454 brcmf_commonring_unlock(commonring);
460 static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf)
462 return wait_event_timeout(msgbuf->ioctl_resp_wait,
463 msgbuf->ctl_completed,
464 msecs_to_jiffies(MSGBUF_IOCTL_RESP_TIMEOUT));
468 static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf)
470 if (waitqueue_active(&msgbuf->ioctl_resp_wait)) {
471 msgbuf->ctl_completed = true;
472 wake_up(&msgbuf->ioctl_resp_wait);
477 static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx,
478 uint cmd, void *buf, uint len)
480 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
481 struct sk_buff *skb = NULL;
485 brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len);
486 msgbuf->ctl_completed = false;
487 err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len);
491 timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf);
493 brcmf_err("Timeout on response for query command\n");
497 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
499 msgbuf->ioctl_resp_pktid);
500 if (msgbuf->ioctl_resp_ret_len != 0) {
502 brcmf_err("Invalid packet id idx recv'd %d\n",
503 msgbuf->ioctl_resp_pktid);
506 memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ?
507 len : msgbuf->ioctl_resp_ret_len);
510 brcmu_pkt_buf_free_skb(skb);
512 return msgbuf->ioctl_resp_status;
516 static int brcmf_msgbuf_set_dcmd(struct brcmf_pub *drvr, int ifidx,
517 uint cmd, void *buf, uint len)
519 return brcmf_msgbuf_query_dcmd(drvr, ifidx, cmd, buf, len);
523 static int brcmf_msgbuf_hdrpull(struct brcmf_pub *drvr, bool do_fws,
524 u8 *ifidx, struct sk_buff *skb)
531 brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid)
536 brcmf_dbg(MSGBUF, "Removing flowring %d\n", flowid);
538 dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE;
539 dma_buf = msgbuf->flowrings[flowid]->buf_addr;
540 dma_free_coherent(msgbuf->drvr->bus_if->dev, dma_sz, dma_buf,
541 msgbuf->flowring_dma_handle[flowid]);
543 brcmf_flowring_delete(msgbuf->flow, flowid);
547 static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
550 struct msgbuf_tx_flowring_create_req *create;
551 struct ethhdr *eh = (struct ethhdr *)(skb->data);
552 struct brcmf_commonring *commonring;
560 flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest,
561 skb->priority, ifidx);
562 if (flowid == BRCMF_FLOWRING_INVALID_ID)
565 dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE;
567 dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz,
568 &msgbuf->flowring_dma_handle[flowid],
571 brcmf_err("dma_alloc_coherent failed\n");
572 brcmf_flowring_delete(msgbuf->flow, flowid);
573 return BRCMF_FLOWRING_INVALID_ID;
576 brcmf_commonring_config(msgbuf->flowrings[flowid],
577 BRCMF_H2D_TXFLOWRING_MAX_ITEM,
578 BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf);
580 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
581 brcmf_commonring_lock(commonring);
582 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
584 brcmf_err("Failed to reserve space in commonring\n");
585 brcmf_commonring_unlock(commonring);
586 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
587 return BRCMF_FLOWRING_INVALID_ID;
590 create = (struct msgbuf_tx_flowring_create_req *)ret_ptr;
591 create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE;
592 create->msg.ifidx = ifidx;
593 create->msg.request_id = 0;
594 create->tid = brcmf_flowring_tid(msgbuf->flow, flowid);
595 create->flow_ring_id = cpu_to_le16(flowid +
596 BRCMF_NROF_H2D_COMMON_MSGRINGS);
597 memcpy(create->sa, eh->h_source, ETH_ALEN);
598 memcpy(create->da, eh->h_dest, ETH_ALEN);
599 address = (long long)(long)msgbuf->flowring_dma_handle[flowid];
600 create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32);
601 create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff);
602 create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM);
603 create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE);
605 brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n",
606 flowid, eh->h_dest, create->tid, ifidx);
608 err = brcmf_commonring_write_complete(commonring);
609 brcmf_commonring_unlock(commonring);
611 brcmf_err("Failed to write commonring\n");
612 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
613 return BRCMF_FLOWRING_INVALID_ID;
620 static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u8 flowid)
622 struct brcmf_flowring *flow = msgbuf->flow;
623 struct brcmf_commonring *commonring;
629 struct msgbuf_tx_msghdr *tx_msghdr;
632 commonring = msgbuf->flowrings[flowid];
633 if (!brcmf_commonring_write_available(commonring))
636 brcmf_commonring_lock(commonring);
638 count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1;
639 while (brcmf_flowring_qlen(flow, flowid)) {
640 skb = brcmf_flowring_dequeue(flow, flowid);
642 brcmf_err("No SKB, but qlen %d\n",
643 brcmf_flowring_qlen(flow, flowid));
647 if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev,
648 msgbuf->tx_pktids, skb, ETH_HLEN,
649 &physaddr, &pktid)) {
650 brcmf_flowring_reinsert(flow, flowid, skb);
651 brcmf_err("No PKTID available !!\n");
654 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
656 brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
657 msgbuf->tx_pktids, pktid);
658 brcmf_flowring_reinsert(flow, flowid, skb);
663 tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr;
665 tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST;
666 tx_msghdr->msg.request_id = cpu_to_le32(pktid);
667 tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid);
668 tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3;
669 tx_msghdr->flags |= (skb->priority & 0x07) <<
670 BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT;
671 tx_msghdr->seg_cnt = 1;
672 memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN);
673 tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN);
674 address = (long long)(long)physaddr;
675 tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32);
676 tx_msghdr->data_buf_addr.low_addr =
677 cpu_to_le32(address & 0xffffffff);
678 tx_msghdr->metadata_buf_len = 0;
679 tx_msghdr->metadata_buf_addr.high_addr = 0;
680 tx_msghdr->metadata_buf_addr.low_addr = 0;
681 if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) {
682 brcmf_commonring_write_complete(commonring);
687 brcmf_commonring_write_complete(commonring);
688 brcmf_commonring_unlock(commonring);
692 static void brcmf_msgbuf_txflow_worker(struct work_struct *worker)
694 struct brcmf_msgbuf *msgbuf;
697 msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work);
698 for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->nrof_flowrings) {
699 clear_bit(flowid, msgbuf->flow_map);
700 brcmf_msgbuf_txflow(msgbuf, flowid);
705 static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid)
707 set_bit(flowid, msgbuf->flow_map);
708 queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work);
714 static int brcmf_msgbuf_txdata(struct brcmf_pub *drvr, int ifidx,
715 u8 offset, struct sk_buff *skb)
717 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
718 struct brcmf_flowring *flow = msgbuf->flow;
719 struct ethhdr *eh = (struct ethhdr *)(skb->data);
722 flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx);
723 if (flowid == BRCMF_FLOWRING_INVALID_ID) {
724 flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb);
725 if (flowid == BRCMF_FLOWRING_INVALID_ID)
728 brcmf_flowring_enqueue(flow, flowid, skb);
729 brcmf_msgbuf_schedule_txdata(msgbuf, flowid);
736 brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx,
737 enum proto_addr_mode addr_mode)
739 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
741 brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode);
746 brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN])
748 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
750 brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer);
755 brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN])
757 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
759 brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer);
764 brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf)
766 struct msgbuf_ioctl_resp_hdr *ioctl_resp;
768 ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf;
770 msgbuf->ioctl_resp_status = le16_to_cpu(ioctl_resp->compl_hdr.status);
771 msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len);
772 msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id);
774 brcmf_msgbuf_ioctl_resp_wake(msgbuf);
776 if (msgbuf->cur_ioctlrespbuf)
777 msgbuf->cur_ioctlrespbuf--;
778 brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf);
783 brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf)
785 struct msgbuf_tx_status *tx_status;
790 tx_status = (struct msgbuf_tx_status *)buf;
791 idx = le32_to_cpu(tx_status->msg.request_id);
792 flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id);
793 flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
794 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
795 msgbuf->tx_pktids, idx);
797 brcmf_err("Invalid packet id idx recv'd %d\n", idx);
801 set_bit(flowid, msgbuf->txstatus_done_map);
803 brcmf_txfinalize(msgbuf->drvr, skb, tx_status->msg.ifidx, true);
807 static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count)
809 struct brcmf_commonring *commonring;
815 struct msgbuf_rx_bufpost *rx_bufpost;
820 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT];
821 ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring,
825 brcmf_err("Failed to reserve space in commonring\n");
829 for (i = 0; i < alloced; i++) {
830 rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr;
831 memset(rx_bufpost, 0, sizeof(*rx_bufpost));
833 skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE);
836 brcmf_err("Failed to alloc SKB\n");
837 brcmf_commonring_write_cancel(commonring, alloced - i);
842 if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev,
843 msgbuf->rx_pktids, skb, 0,
844 &physaddr, &pktid)) {
845 dev_kfree_skb_any(skb);
846 brcmf_err("No PKTID available !!\n");
847 brcmf_commonring_write_cancel(commonring, alloced - i);
851 if (msgbuf->rx_metadata_offset) {
852 address = (long long)(long)physaddr;
853 rx_bufpost->metadata_buf_len =
854 cpu_to_le16(msgbuf->rx_metadata_offset);
855 rx_bufpost->metadata_buf_addr.high_addr =
856 cpu_to_le32(address >> 32);
857 rx_bufpost->metadata_buf_addr.low_addr =
858 cpu_to_le32(address & 0xffffffff);
860 skb_pull(skb, msgbuf->rx_metadata_offset);
862 physaddr += msgbuf->rx_metadata_offset;
864 rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST;
865 rx_bufpost->msg.request_id = cpu_to_le32(pktid);
867 address = (long long)(long)physaddr;
868 rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen);
869 rx_bufpost->data_buf_addr.high_addr =
870 cpu_to_le32(address >> 32);
871 rx_bufpost->data_buf_addr.low_addr =
872 cpu_to_le32(address & 0xffffffff);
874 ret_ptr += brcmf_commonring_len_item(commonring);
878 brcmf_commonring_write_complete(commonring);
885 brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf)
890 fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost;
893 retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs);
896 msgbuf->rxbufpost += retcount;
897 fillbufs -= retcount;
903 brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt)
905 msgbuf->rxbufpost -= rxcnt;
906 if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost -
907 BRCMF_MSGBUF_RXBUFPOST_THRESHOLD))
908 brcmf_msgbuf_rxbuf_data_fill(msgbuf);
913 brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf,
916 struct brcmf_commonring *commonring;
922 struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost;
927 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
928 brcmf_commonring_lock(commonring);
929 ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring,
933 brcmf_err("Failed to reserve space in commonring\n");
934 brcmf_commonring_unlock(commonring);
938 for (i = 0; i < alloced; i++) {
939 rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr;
940 memset(rx_bufpost, 0, sizeof(*rx_bufpost));
942 skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE);
945 brcmf_err("Failed to alloc SKB\n");
946 brcmf_commonring_write_cancel(commonring, alloced - i);
951 if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev,
952 msgbuf->rx_pktids, skb, 0,
953 &physaddr, &pktid)) {
954 dev_kfree_skb_any(skb);
955 brcmf_err("No PKTID available !!\n");
956 brcmf_commonring_write_cancel(commonring, alloced - i);
960 rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST;
962 rx_bufpost->msg.msgtype =
963 MSGBUF_TYPE_IOCTLRESP_BUF_POST;
964 rx_bufpost->msg.request_id = cpu_to_le32(pktid);
966 address = (long long)(long)physaddr;
967 rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen);
968 rx_bufpost->host_buf_addr.high_addr =
969 cpu_to_le32(address >> 32);
970 rx_bufpost->host_buf_addr.low_addr =
971 cpu_to_le32(address & 0xffffffff);
973 ret_ptr += brcmf_commonring_len_item(commonring);
977 brcmf_commonring_write_complete(commonring);
979 brcmf_commonring_unlock(commonring);
985 static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf)
989 count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf;
990 count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count);
991 msgbuf->cur_ioctlrespbuf += count;
995 static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf)
999 count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf;
1000 count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count);
1001 msgbuf->cur_eventbuf += count;
1006 brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb,
1009 struct brcmf_if *ifp;
1011 ifp = msgbuf->drvr->iflist[ifidx];
1012 if (!ifp || !ifp->ndev) {
1013 brcmu_pkt_buf_free_skb(skb);
1016 brcmf_netif_rx(ifp, skb);
1020 static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf)
1022 struct msgbuf_rx_event *event;
1025 struct sk_buff *skb;
1027 event = (struct msgbuf_rx_event *)buf;
1028 idx = le32_to_cpu(event->msg.request_id);
1029 buflen = le16_to_cpu(event->event_data_len);
1031 if (msgbuf->cur_eventbuf)
1032 msgbuf->cur_eventbuf--;
1033 brcmf_msgbuf_rxbuf_event_post(msgbuf);
1035 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
1036 msgbuf->rx_pktids, idx);
1040 if (msgbuf->rx_dataoffset)
1041 skb_pull(skb, msgbuf->rx_dataoffset);
1043 skb_trim(skb, buflen);
1045 brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx);
1050 brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
1052 struct msgbuf_rx_complete *rx_complete;
1053 struct sk_buff *skb;
1058 brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1);
1060 rx_complete = (struct msgbuf_rx_complete *)buf;
1061 data_offset = le16_to_cpu(rx_complete->data_offset);
1062 buflen = le16_to_cpu(rx_complete->data_len);
1063 idx = le32_to_cpu(rx_complete->msg.request_id);
1065 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
1066 msgbuf->rx_pktids, idx);
1069 skb_pull(skb, data_offset);
1070 else if (msgbuf->rx_dataoffset)
1071 skb_pull(skb, msgbuf->rx_dataoffset);
1073 skb_trim(skb, buflen);
1075 brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx);
1080 brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf,
1083 struct msgbuf_flowring_create_resp *flowring_create_resp;
1087 flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf;
1089 flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id);
1090 flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
1091 status = le16_to_cpu(flowring_create_resp->compl_hdr.status);
1094 brcmf_err("Flowring creation failed, code %d\n", status);
1095 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1098 brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid,
1101 brcmf_flowring_open(msgbuf->flow, flowid);
1103 brcmf_msgbuf_schedule_txdata(msgbuf, flowid);
1108 brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf,
1111 struct msgbuf_flowring_delete_resp *flowring_delete_resp;
1115 flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf;
1117 flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id);
1118 flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
1119 status = le16_to_cpu(flowring_delete_resp->compl_hdr.status);
1122 brcmf_err("Flowring deletion failed, code %d\n", status);
1123 brcmf_flowring_delete(msgbuf->flow, flowid);
1126 brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid,
1129 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1133 static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf)
1135 struct msgbuf_common_hdr *msg;
1137 msg = (struct msgbuf_common_hdr *)buf;
1138 switch (msg->msgtype) {
1139 case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT:
1140 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n");
1141 brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf);
1143 case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT:
1144 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n");
1145 brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf);
1147 case MSGBUF_TYPE_IOCTLPTR_REQ_ACK:
1148 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n");
1150 case MSGBUF_TYPE_IOCTL_CMPLT:
1151 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n");
1152 brcmf_msgbuf_process_ioctl_complete(msgbuf, buf);
1154 case MSGBUF_TYPE_WL_EVENT:
1155 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n");
1156 brcmf_msgbuf_process_event(msgbuf, buf);
1158 case MSGBUF_TYPE_TX_STATUS:
1159 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n");
1160 brcmf_msgbuf_process_txstatus(msgbuf, buf);
1162 case MSGBUF_TYPE_RX_CMPLT:
1163 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n");
1164 brcmf_msgbuf_process_rx_complete(msgbuf, buf);
1167 brcmf_err("Unsupported msgtype %d\n", msg->msgtype);
1173 static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf,
1174 struct brcmf_commonring *commonring)
1180 buf = brcmf_commonring_get_read_ptr(commonring, &count);
1185 brcmf_msgbuf_process_msgtype(msgbuf,
1186 buf + msgbuf->rx_dataoffset);
1187 buf += brcmf_commonring_len_item(commonring);
1190 brcmf_commonring_read_complete(commonring);
1192 if (commonring->r_ptr == 0)
1197 int brcmf_proto_msgbuf_rx_trigger(struct device *dev)
1199 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1200 struct brcmf_pub *drvr = bus_if->drvr;
1201 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1205 buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE];
1206 brcmf_msgbuf_process_rx(msgbuf, buf);
1207 buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE];
1208 brcmf_msgbuf_process_rx(msgbuf, buf);
1209 buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE];
1210 brcmf_msgbuf_process_rx(msgbuf, buf);
1212 for_each_set_bit(flowid, msgbuf->txstatus_done_map,
1213 msgbuf->nrof_flowrings) {
1214 clear_bit(flowid, msgbuf->txstatus_done_map);
1215 if (brcmf_flowring_qlen(msgbuf->flow, flowid))
1216 brcmf_msgbuf_schedule_txdata(msgbuf, flowid);
1223 void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid)
1225 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1226 struct msgbuf_tx_flowring_delete_req *delete;
1227 struct brcmf_commonring *commonring;
1232 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
1233 brcmf_commonring_lock(commonring);
1234 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
1236 brcmf_err("FW unaware, flowring will be removed !!\n");
1237 brcmf_commonring_unlock(commonring);
1238 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1242 delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr;
1244 ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid);
1246 delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE;
1247 delete->msg.ifidx = ifidx;
1248 delete->msg.request_id = 0;
1250 delete->flow_ring_id = cpu_to_le16(flowid +
1251 BRCMF_NROF_H2D_COMMON_MSGRINGS);
1254 brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n",
1257 err = brcmf_commonring_write_complete(commonring);
1258 brcmf_commonring_unlock(commonring);
1260 brcmf_err("Failed to submit RING_DELETE, flowring will be removed\n");
1261 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1266 int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
1268 struct brcmf_bus_msgbuf *if_msgbuf;
1269 struct brcmf_msgbuf *msgbuf;
1273 if_msgbuf = drvr->bus_if->msgbuf;
1274 msgbuf = kzalloc(sizeof(*msgbuf), GFP_ATOMIC);
1278 msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow");
1279 if (msgbuf->txflow_wq == NULL) {
1280 brcmf_err("workqueue creation failed\n");
1283 INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker);
1284 count = BITS_TO_LONGS(if_msgbuf->nrof_flowrings);
1285 msgbuf->flow_map = kzalloc(count, GFP_ATOMIC);
1286 if (!msgbuf->flow_map)
1289 msgbuf->txstatus_done_map = kzalloc(count, GFP_ATOMIC);
1290 if (!msgbuf->txstatus_done_map)
1293 msgbuf->drvr = drvr;
1294 msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev,
1295 BRCMF_TX_IOCTL_MAX_MSG_SIZE,
1296 &msgbuf->ioctbuf_handle,
1298 if (!msgbuf->ioctbuf)
1300 address = (long long)(long)msgbuf->ioctbuf_handle;
1301 msgbuf->ioctbuf_phys_hi = address >> 32;
1302 msgbuf->ioctbuf_phys_lo = address & 0xffffffff;
1304 drvr->proto->hdrpull = brcmf_msgbuf_hdrpull;
1305 drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd;
1306 drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd;
1307 drvr->proto->txdata = brcmf_msgbuf_txdata;
1308 drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode;
1309 drvr->proto->delete_peer = brcmf_msgbuf_delete_peer;
1310 drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer;
1311 drvr->proto->pd = msgbuf;
1313 init_waitqueue_head(&msgbuf->ioctl_resp_wait);
1315 msgbuf->commonrings =
1316 (struct brcmf_commonring **)if_msgbuf->commonrings;
1317 msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings;
1318 msgbuf->nrof_flowrings = if_msgbuf->nrof_flowrings;
1319 msgbuf->flowring_dma_handle = kzalloc(msgbuf->nrof_flowrings *
1320 sizeof(*msgbuf->flowring_dma_handle), GFP_ATOMIC);
1322 msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset;
1323 msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost;
1325 msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST;
1326 msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST;
1328 msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS,
1330 if (!msgbuf->tx_pktids)
1332 msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS,
1334 if (!msgbuf->rx_pktids)
1337 msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev,
1338 if_msgbuf->nrof_flowrings);
1343 brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n",
1344 msgbuf->max_rxbufpost, msgbuf->max_eventbuf,
1345 msgbuf->max_ioctlrespbuf);
1348 brcmf_msgbuf_rxbuf_data_fill(msgbuf);
1349 if (msgbuf->max_rxbufpost != msgbuf->rxbufpost)
1354 } while (count < 10);
1355 brcmf_msgbuf_rxbuf_event_post(msgbuf);
1356 brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf);
1362 kfree(msgbuf->flow_map);
1363 kfree(msgbuf->txstatus_done_map);
1364 brcmf_msgbuf_release_pktids(msgbuf);
1365 if (msgbuf->ioctbuf)
1366 dma_free_coherent(drvr->bus_if->dev,
1367 BRCMF_TX_IOCTL_MAX_MSG_SIZE,
1369 msgbuf->ioctbuf_handle);
1376 void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr)
1378 struct brcmf_msgbuf *msgbuf;
1380 brcmf_dbg(TRACE, "Enter\n");
1381 if (drvr->proto->pd) {
1382 msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1384 kfree(msgbuf->flow_map);
1385 kfree(msgbuf->txstatus_done_map);
1386 if (msgbuf->txflow_wq)
1387 destroy_workqueue(msgbuf->txflow_wq);
1389 brcmf_flowring_detach(msgbuf->flow);
1390 dma_free_coherent(drvr->bus_if->dev,
1391 BRCMF_TX_IOCTL_MAX_MSG_SIZE,
1392 msgbuf->ioctbuf, msgbuf->ioctbuf_handle);
1393 brcmf_msgbuf_release_pktids(msgbuf);
1395 drvr->proto->pd = NULL;