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 msecs_to_jiffies(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
76 #define BRCMF_MSGBUF_DELAY_TXWORKER_THRS 96
77 #define BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS 32
78 #define BRCMF_MSGBUF_UPDATE_RX_PTR_THRS 48
81 struct msgbuf_common_hdr {
89 struct msgbuf_buf_addr {
94 struct msgbuf_ioctl_req_hdr {
95 struct msgbuf_common_hdr msg;
99 __le16 output_buf_len;
101 struct msgbuf_buf_addr req_buf_addr;
105 struct msgbuf_tx_msghdr {
106 struct msgbuf_common_hdr msg;
110 struct msgbuf_buf_addr metadata_buf_addr;
111 struct msgbuf_buf_addr data_buf_addr;
112 __le16 metadata_buf_len;
117 struct msgbuf_rx_bufpost {
118 struct msgbuf_common_hdr msg;
119 __le16 metadata_buf_len;
122 struct msgbuf_buf_addr metadata_buf_addr;
123 struct msgbuf_buf_addr data_buf_addr;
126 struct msgbuf_rx_ioctl_resp_or_event {
127 struct msgbuf_common_hdr msg;
130 struct msgbuf_buf_addr host_buf_addr;
134 struct msgbuf_completion_hdr {
139 struct msgbuf_rx_event {
140 struct msgbuf_common_hdr msg;
141 struct msgbuf_completion_hdr compl_hdr;
142 __le16 event_data_len;
147 struct msgbuf_ioctl_resp_hdr {
148 struct msgbuf_common_hdr msg;
149 struct msgbuf_completion_hdr compl_hdr;
156 struct msgbuf_tx_status {
157 struct msgbuf_common_hdr msg;
158 struct msgbuf_completion_hdr compl_hdr;
163 struct msgbuf_rx_complete {
164 struct msgbuf_common_hdr msg;
165 struct msgbuf_completion_hdr compl_hdr;
175 struct msgbuf_tx_flowring_create_req {
176 struct msgbuf_common_hdr msg;
187 struct msgbuf_buf_addr flow_ring_addr;
190 struct msgbuf_tx_flowring_delete_req {
191 struct msgbuf_common_hdr msg;
197 struct msgbuf_flowring_create_resp {
198 struct msgbuf_common_hdr msg;
199 struct msgbuf_completion_hdr compl_hdr;
203 struct msgbuf_flowring_delete_resp {
204 struct msgbuf_common_hdr msg;
205 struct msgbuf_completion_hdr compl_hdr;
209 struct msgbuf_flowring_flush_resp {
210 struct msgbuf_common_hdr msg;
211 struct msgbuf_completion_hdr compl_hdr;
215 struct brcmf_msgbuf_work_item {
216 struct list_head queue;
223 struct brcmf_msgbuf {
224 struct brcmf_pub *drvr;
226 struct brcmf_commonring **commonrings;
227 struct brcmf_commonring **flowrings;
228 dma_addr_t *flowring_dma_handle;
233 u16 rx_metadata_offset;
236 u32 max_ioctlrespbuf;
237 u32 cur_ioctlrespbuf;
242 dma_addr_t ioctbuf_handle;
245 int ioctl_resp_status;
246 u32 ioctl_resp_ret_len;
247 u32 ioctl_resp_pktid;
252 wait_queue_head_t ioctl_resp_wait;
255 struct brcmf_msgbuf_pktids *tx_pktids;
256 struct brcmf_msgbuf_pktids *rx_pktids;
257 struct brcmf_flowring *flow;
259 struct workqueue_struct *txflow_wq;
260 struct work_struct txflow_work;
261 unsigned long *flow_map;
262 unsigned long *txstatus_done_map;
264 struct work_struct flowring_work;
265 spinlock_t flowring_work_lock;
266 struct list_head work_queue;
269 struct brcmf_msgbuf_pktid {
276 struct brcmf_msgbuf_pktids {
278 u32 last_allocated_idx;
279 enum dma_data_direction direction;
280 struct brcmf_msgbuf_pktid *array;
283 static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf);
286 static struct brcmf_msgbuf_pktids *
287 brcmf_msgbuf_init_pktids(u32 nr_array_entries,
288 enum dma_data_direction direction)
290 struct brcmf_msgbuf_pktid *array;
291 struct brcmf_msgbuf_pktids *pktids;
293 array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL);
297 pktids = kzalloc(sizeof(*pktids), GFP_KERNEL);
302 pktids->array = array;
303 pktids->array_size = nr_array_entries;
310 brcmf_msgbuf_alloc_pktid(struct device *dev,
311 struct brcmf_msgbuf_pktids *pktids,
312 struct sk_buff *skb, u16 data_offset,
313 dma_addr_t *physaddr, u32 *idx)
315 struct brcmf_msgbuf_pktid *array;
318 array = pktids->array;
320 *physaddr = dma_map_single(dev, skb->data + data_offset,
321 skb->len - data_offset, pktids->direction);
323 if (dma_mapping_error(dev, *physaddr)) {
324 brcmf_err("dma_map_single failed !!\n");
328 *idx = pktids->last_allocated_idx;
333 if (*idx == pktids->array_size)
335 if (array[*idx].allocated.counter == 0)
336 if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0)
339 } while (count < pktids->array_size);
341 if (count == pktids->array_size)
344 array[*idx].data_offset = data_offset;
345 array[*idx].physaddr = *physaddr;
346 array[*idx].skb = skb;
348 pktids->last_allocated_idx = *idx;
354 static struct sk_buff *
355 brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids,
358 struct brcmf_msgbuf_pktid *pktid;
361 if (idx >= pktids->array_size) {
362 brcmf_err("Invalid packet id %d (max %d)\n", idx,
366 if (pktids->array[idx].allocated.counter) {
367 pktid = &pktids->array[idx];
368 dma_unmap_single(dev, pktid->physaddr,
369 pktid->skb->len - pktid->data_offset,
372 pktid->allocated.counter = 0;
375 brcmf_err("Invalid packet id %d (not in use)\n", idx);
383 brcmf_msgbuf_release_array(struct device *dev,
384 struct brcmf_msgbuf_pktids *pktids)
386 struct brcmf_msgbuf_pktid *array;
387 struct brcmf_msgbuf_pktid *pktid;
390 array = pktids->array;
393 if (array[count].allocated.counter) {
394 pktid = &array[count];
395 dma_unmap_single(dev, pktid->physaddr,
396 pktid->skb->len - pktid->data_offset,
398 brcmu_pkt_buf_free_skb(pktid->skb);
401 } while (count < pktids->array_size);
408 static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf)
410 if (msgbuf->rx_pktids)
411 brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev,
413 if (msgbuf->tx_pktids)
414 brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev,
419 static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx,
420 uint cmd, void *buf, uint len)
422 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
423 struct brcmf_commonring *commonring;
424 struct msgbuf_ioctl_req_hdr *request;
429 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
430 brcmf_commonring_lock(commonring);
431 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
433 brcmf_err("Failed to reserve space in commonring\n");
434 brcmf_commonring_unlock(commonring);
440 request = (struct msgbuf_ioctl_req_hdr *)ret_ptr;
441 request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ;
442 request->msg.ifidx = (u8)ifidx;
443 request->msg.flags = 0;
444 request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID);
445 request->cmd = cpu_to_le32(cmd);
446 request->output_buf_len = cpu_to_le16(len);
447 request->trans_id = cpu_to_le16(msgbuf->reqid);
449 buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE);
450 request->input_buf_len = cpu_to_le16(buf_len);
451 request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi);
452 request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo);
454 memcpy(msgbuf->ioctbuf, buf, buf_len);
456 memset(msgbuf->ioctbuf, 0, buf_len);
458 err = brcmf_commonring_write_complete(commonring);
459 brcmf_commonring_unlock(commonring);
465 static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf)
467 return wait_event_timeout(msgbuf->ioctl_resp_wait,
468 msgbuf->ctl_completed,
469 MSGBUF_IOCTL_RESP_TIMEOUT);
473 static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf)
475 msgbuf->ctl_completed = true;
476 wake_up(&msgbuf->ioctl_resp_wait);
480 static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx,
481 uint cmd, void *buf, uint len)
483 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
484 struct sk_buff *skb = NULL;
488 brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len);
489 msgbuf->ctl_completed = false;
490 err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len);
494 timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf);
496 brcmf_err("Timeout on response for query command\n");
500 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
502 msgbuf->ioctl_resp_pktid);
503 if (msgbuf->ioctl_resp_ret_len != 0) {
507 memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ?
508 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 struct sk_buff *skb, struct brcmf_if **ifp)
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 struct brcmf_msgbuf_work_item *
548 brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf)
550 struct brcmf_msgbuf_work_item *work = NULL;
553 spin_lock_irqsave(&msgbuf->flowring_work_lock, flags);
554 if (!list_empty(&msgbuf->work_queue)) {
555 work = list_first_entry(&msgbuf->work_queue,
556 struct brcmf_msgbuf_work_item, queue);
557 list_del(&work->queue);
559 spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags);
566 brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf,
567 struct brcmf_msgbuf_work_item *work)
569 struct msgbuf_tx_flowring_create_req *create;
570 struct brcmf_commonring *commonring;
578 flowid = work->flowid;
579 dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE;
580 dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz,
581 &msgbuf->flowring_dma_handle[flowid],
584 brcmf_err("dma_alloc_coherent failed\n");
585 brcmf_flowring_delete(msgbuf->flow, flowid);
586 return BRCMF_FLOWRING_INVALID_ID;
589 brcmf_commonring_config(msgbuf->flowrings[flowid],
590 BRCMF_H2D_TXFLOWRING_MAX_ITEM,
591 BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf);
593 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
594 brcmf_commonring_lock(commonring);
595 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
597 brcmf_err("Failed to reserve space in commonring\n");
598 brcmf_commonring_unlock(commonring);
599 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
600 return BRCMF_FLOWRING_INVALID_ID;
603 create = (struct msgbuf_tx_flowring_create_req *)ret_ptr;
604 create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE;
605 create->msg.ifidx = work->ifidx;
606 create->msg.request_id = 0;
607 create->tid = brcmf_flowring_tid(msgbuf->flow, flowid);
608 create->flow_ring_id = cpu_to_le16(flowid +
609 BRCMF_NROF_H2D_COMMON_MSGRINGS);
610 memcpy(create->sa, work->sa, ETH_ALEN);
611 memcpy(create->da, work->da, ETH_ALEN);
612 address = (u64)msgbuf->flowring_dma_handle[flowid];
613 create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32);
614 create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff);
615 create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM);
616 create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE);
618 brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n",
619 flowid, work->da, create->tid, work->ifidx);
621 err = brcmf_commonring_write_complete(commonring);
622 brcmf_commonring_unlock(commonring);
624 brcmf_err("Failed to write commonring\n");
625 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
626 return BRCMF_FLOWRING_INVALID_ID;
633 static void brcmf_msgbuf_flowring_worker(struct work_struct *work)
635 struct brcmf_msgbuf *msgbuf;
636 struct brcmf_msgbuf_work_item *create;
638 msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work);
640 while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) {
641 brcmf_msgbuf_flowring_create_worker(msgbuf, create);
647 static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
650 struct brcmf_msgbuf_work_item *create;
651 struct ethhdr *eh = (struct ethhdr *)(skb->data);
655 create = kzalloc(sizeof(*create), GFP_ATOMIC);
657 return BRCMF_FLOWRING_INVALID_ID;
659 flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest,
660 skb->priority, ifidx);
661 if (flowid == BRCMF_FLOWRING_INVALID_ID) {
666 create->flowid = flowid;
667 create->ifidx = ifidx;
668 memcpy(create->sa, eh->h_source, ETH_ALEN);
669 memcpy(create->da, eh->h_dest, ETH_ALEN);
671 spin_lock_irqsave(&msgbuf->flowring_work_lock, flags);
672 list_add_tail(&create->queue, &msgbuf->work_queue);
673 spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags);
674 schedule_work(&msgbuf->flowring_work);
680 static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u8 flowid)
682 struct brcmf_flowring *flow = msgbuf->flow;
683 struct brcmf_commonring *commonring;
689 struct msgbuf_tx_msghdr *tx_msghdr;
692 commonring = msgbuf->flowrings[flowid];
693 if (!brcmf_commonring_write_available(commonring))
696 brcmf_commonring_lock(commonring);
698 count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1;
699 while (brcmf_flowring_qlen(flow, flowid)) {
700 skb = brcmf_flowring_dequeue(flow, flowid);
702 brcmf_err("No SKB, but qlen %d\n",
703 brcmf_flowring_qlen(flow, flowid));
707 if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev,
708 msgbuf->tx_pktids, skb, ETH_HLEN,
709 &physaddr, &pktid)) {
710 brcmf_flowring_reinsert(flow, flowid, skb);
711 brcmf_err("No PKTID available !!\n");
714 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
716 brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
717 msgbuf->tx_pktids, pktid);
718 brcmf_flowring_reinsert(flow, flowid, skb);
723 tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr;
725 tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST;
726 tx_msghdr->msg.request_id = cpu_to_le32(pktid);
727 tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid);
728 tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3;
729 tx_msghdr->flags |= (skb->priority & 0x07) <<
730 BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT;
731 tx_msghdr->seg_cnt = 1;
732 memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN);
733 tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN);
734 address = (u64)physaddr;
735 tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32);
736 tx_msghdr->data_buf_addr.low_addr =
737 cpu_to_le32(address & 0xffffffff);
738 tx_msghdr->metadata_buf_len = 0;
739 tx_msghdr->metadata_buf_addr.high_addr = 0;
740 tx_msghdr->metadata_buf_addr.low_addr = 0;
741 atomic_inc(&commonring->outstanding_tx);
742 if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) {
743 brcmf_commonring_write_complete(commonring);
748 brcmf_commonring_write_complete(commonring);
749 brcmf_commonring_unlock(commonring);
753 static void brcmf_msgbuf_txflow_worker(struct work_struct *worker)
755 struct brcmf_msgbuf *msgbuf;
758 msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work);
759 for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->nrof_flowrings) {
760 clear_bit(flowid, msgbuf->flow_map);
761 brcmf_msgbuf_txflow(msgbuf, flowid);
766 static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid,
769 struct brcmf_commonring *commonring;
771 set_bit(flowid, msgbuf->flow_map);
772 commonring = msgbuf->flowrings[flowid];
773 if ((force) || (atomic_read(&commonring->outstanding_tx) <
774 BRCMF_MSGBUF_DELAY_TXWORKER_THRS))
775 queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work);
781 static int brcmf_msgbuf_txdata(struct brcmf_pub *drvr, int ifidx,
782 u8 offset, struct sk_buff *skb)
784 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
785 struct brcmf_flowring *flow = msgbuf->flow;
786 struct ethhdr *eh = (struct ethhdr *)(skb->data);
791 flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx);
792 if (flowid == BRCMF_FLOWRING_INVALID_ID) {
793 flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb);
794 if (flowid == BRCMF_FLOWRING_INVALID_ID)
797 queue_count = brcmf_flowring_enqueue(flow, flowid, skb);
798 force = ((queue_count % BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) == 0);
799 brcmf_msgbuf_schedule_txdata(msgbuf, flowid, force);
806 brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx,
807 enum proto_addr_mode addr_mode)
809 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
811 brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode);
816 brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN])
818 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
820 brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer);
825 brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN])
827 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
829 brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer);
834 brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf)
836 struct msgbuf_ioctl_resp_hdr *ioctl_resp;
838 ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf;
840 msgbuf->ioctl_resp_status =
841 (s16)le16_to_cpu(ioctl_resp->compl_hdr.status);
842 msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len);
843 msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id);
845 brcmf_msgbuf_ioctl_resp_wake(msgbuf);
847 if (msgbuf->cur_ioctlrespbuf)
848 msgbuf->cur_ioctlrespbuf--;
849 brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf);
854 brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf)
856 struct brcmf_commonring *commonring;
857 struct msgbuf_tx_status *tx_status;
862 tx_status = (struct msgbuf_tx_status *)buf;
863 idx = le32_to_cpu(tx_status->msg.request_id);
864 flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id);
865 flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
866 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
867 msgbuf->tx_pktids, idx);
871 set_bit(flowid, msgbuf->txstatus_done_map);
872 commonring = msgbuf->flowrings[flowid];
873 atomic_dec(&commonring->outstanding_tx);
875 brcmf_txfinalize(brcmf_get_ifp(msgbuf->drvr, tx_status->msg.ifidx),
880 static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count)
882 struct brcmf_commonring *commonring;
888 struct msgbuf_rx_bufpost *rx_bufpost;
893 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT];
894 ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring,
898 brcmf_dbg(MSGBUF, "Failed to reserve space in commonring\n");
902 for (i = 0; i < alloced; i++) {
903 rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr;
904 memset(rx_bufpost, 0, sizeof(*rx_bufpost));
906 skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE);
909 brcmf_err("Failed to alloc SKB\n");
910 brcmf_commonring_write_cancel(commonring, alloced - i);
915 if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev,
916 msgbuf->rx_pktids, skb, 0,
917 &physaddr, &pktid)) {
918 dev_kfree_skb_any(skb);
919 brcmf_err("No PKTID available !!\n");
920 brcmf_commonring_write_cancel(commonring, alloced - i);
924 if (msgbuf->rx_metadata_offset) {
925 address = (u64)physaddr;
926 rx_bufpost->metadata_buf_len =
927 cpu_to_le16(msgbuf->rx_metadata_offset);
928 rx_bufpost->metadata_buf_addr.high_addr =
929 cpu_to_le32(address >> 32);
930 rx_bufpost->metadata_buf_addr.low_addr =
931 cpu_to_le32(address & 0xffffffff);
933 skb_pull(skb, msgbuf->rx_metadata_offset);
935 physaddr += msgbuf->rx_metadata_offset;
937 rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST;
938 rx_bufpost->msg.request_id = cpu_to_le32(pktid);
940 address = (u64)physaddr;
941 rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen);
942 rx_bufpost->data_buf_addr.high_addr =
943 cpu_to_le32(address >> 32);
944 rx_bufpost->data_buf_addr.low_addr =
945 cpu_to_le32(address & 0xffffffff);
947 ret_ptr += brcmf_commonring_len_item(commonring);
951 brcmf_commonring_write_complete(commonring);
958 brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf)
963 fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost;
966 retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs);
969 msgbuf->rxbufpost += retcount;
970 fillbufs -= retcount;
976 brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt)
978 msgbuf->rxbufpost -= rxcnt;
979 if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost -
980 BRCMF_MSGBUF_RXBUFPOST_THRESHOLD))
981 brcmf_msgbuf_rxbuf_data_fill(msgbuf);
986 brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf,
989 struct brcmf_commonring *commonring;
995 struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost;
1000 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
1001 brcmf_commonring_lock(commonring);
1002 ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring,
1006 brcmf_err("Failed to reserve space in commonring\n");
1007 brcmf_commonring_unlock(commonring);
1011 for (i = 0; i < alloced; i++) {
1012 rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr;
1013 memset(rx_bufpost, 0, sizeof(*rx_bufpost));
1015 skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE);
1018 brcmf_err("Failed to alloc SKB\n");
1019 brcmf_commonring_write_cancel(commonring, alloced - i);
1024 if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev,
1025 msgbuf->rx_pktids, skb, 0,
1026 &physaddr, &pktid)) {
1027 dev_kfree_skb_any(skb);
1028 brcmf_err("No PKTID available !!\n");
1029 brcmf_commonring_write_cancel(commonring, alloced - i);
1033 rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST;
1035 rx_bufpost->msg.msgtype =
1036 MSGBUF_TYPE_IOCTLRESP_BUF_POST;
1037 rx_bufpost->msg.request_id = cpu_to_le32(pktid);
1039 address = (u64)physaddr;
1040 rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen);
1041 rx_bufpost->host_buf_addr.high_addr =
1042 cpu_to_le32(address >> 32);
1043 rx_bufpost->host_buf_addr.low_addr =
1044 cpu_to_le32(address & 0xffffffff);
1046 ret_ptr += brcmf_commonring_len_item(commonring);
1050 brcmf_commonring_write_complete(commonring);
1052 brcmf_commonring_unlock(commonring);
1058 static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf)
1062 count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf;
1063 count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count);
1064 msgbuf->cur_ioctlrespbuf += count;
1068 static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf)
1072 count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf;
1073 count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count);
1074 msgbuf->cur_eventbuf += count;
1079 brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb,
1082 struct brcmf_if *ifp;
1084 ifp = brcmf_get_ifp(msgbuf->drvr, ifidx);
1085 if (!ifp || !ifp->ndev) {
1086 brcmf_err("Received pkt for invalid ifidx %d\n", ifidx);
1087 brcmu_pkt_buf_free_skb(skb);
1090 brcmf_netif_rx(ifp, skb);
1094 static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf)
1096 struct msgbuf_rx_event *event;
1099 struct sk_buff *skb;
1101 event = (struct msgbuf_rx_event *)buf;
1102 idx = le32_to_cpu(event->msg.request_id);
1103 buflen = le16_to_cpu(event->event_data_len);
1105 if (msgbuf->cur_eventbuf)
1106 msgbuf->cur_eventbuf--;
1107 brcmf_msgbuf_rxbuf_event_post(msgbuf);
1109 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
1110 msgbuf->rx_pktids, idx);
1114 if (msgbuf->rx_dataoffset)
1115 skb_pull(skb, msgbuf->rx_dataoffset);
1117 skb_trim(skb, buflen);
1119 brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx);
1124 brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
1126 struct msgbuf_rx_complete *rx_complete;
1127 struct sk_buff *skb;
1132 brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1);
1134 rx_complete = (struct msgbuf_rx_complete *)buf;
1135 data_offset = le16_to_cpu(rx_complete->data_offset);
1136 buflen = le16_to_cpu(rx_complete->data_len);
1137 idx = le32_to_cpu(rx_complete->msg.request_id);
1139 skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
1140 msgbuf->rx_pktids, idx);
1145 skb_pull(skb, data_offset);
1146 else if (msgbuf->rx_dataoffset)
1147 skb_pull(skb, msgbuf->rx_dataoffset);
1149 skb_trim(skb, buflen);
1151 brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx);
1156 brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf,
1159 struct msgbuf_flowring_create_resp *flowring_create_resp;
1163 flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf;
1165 flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id);
1166 flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
1167 status = le16_to_cpu(flowring_create_resp->compl_hdr.status);
1170 brcmf_err("Flowring creation failed, code %d\n", status);
1171 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1174 brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid,
1177 brcmf_flowring_open(msgbuf->flow, flowid);
1179 brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true);
1184 brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf,
1187 struct msgbuf_flowring_delete_resp *flowring_delete_resp;
1191 flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf;
1193 flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id);
1194 flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
1195 status = le16_to_cpu(flowring_delete_resp->compl_hdr.status);
1198 brcmf_err("Flowring deletion failed, code %d\n", status);
1199 brcmf_flowring_delete(msgbuf->flow, flowid);
1202 brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid,
1205 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1209 static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf)
1211 struct msgbuf_common_hdr *msg;
1213 msg = (struct msgbuf_common_hdr *)buf;
1214 switch (msg->msgtype) {
1215 case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT:
1216 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n");
1217 brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf);
1219 case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT:
1220 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n");
1221 brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf);
1223 case MSGBUF_TYPE_IOCTLPTR_REQ_ACK:
1224 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n");
1226 case MSGBUF_TYPE_IOCTL_CMPLT:
1227 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n");
1228 brcmf_msgbuf_process_ioctl_complete(msgbuf, buf);
1230 case MSGBUF_TYPE_WL_EVENT:
1231 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n");
1232 brcmf_msgbuf_process_event(msgbuf, buf);
1234 case MSGBUF_TYPE_TX_STATUS:
1235 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n");
1236 brcmf_msgbuf_process_txstatus(msgbuf, buf);
1238 case MSGBUF_TYPE_RX_CMPLT:
1239 brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n");
1240 brcmf_msgbuf_process_rx_complete(msgbuf, buf);
1243 brcmf_err("Unsupported msgtype %d\n", msg->msgtype);
1249 static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf,
1250 struct brcmf_commonring *commonring)
1257 buf = brcmf_commonring_get_read_ptr(commonring, &count);
1263 brcmf_msgbuf_process_msgtype(msgbuf,
1264 buf + msgbuf->rx_dataoffset);
1265 buf += brcmf_commonring_len_item(commonring);
1267 if (processed == BRCMF_MSGBUF_UPDATE_RX_PTR_THRS) {
1268 brcmf_commonring_read_complete(commonring, processed);
1274 brcmf_commonring_read_complete(commonring, processed);
1276 if (commonring->r_ptr == 0)
1281 int brcmf_proto_msgbuf_rx_trigger(struct device *dev)
1283 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1284 struct brcmf_pub *drvr = bus_if->drvr;
1285 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1286 struct brcmf_commonring *commonring;
1291 buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE];
1292 brcmf_msgbuf_process_rx(msgbuf, buf);
1293 buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE];
1294 brcmf_msgbuf_process_rx(msgbuf, buf);
1295 buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE];
1296 brcmf_msgbuf_process_rx(msgbuf, buf);
1298 for_each_set_bit(flowid, msgbuf->txstatus_done_map,
1299 msgbuf->nrof_flowrings) {
1300 clear_bit(flowid, msgbuf->txstatus_done_map);
1301 commonring = msgbuf->flowrings[flowid];
1302 qlen = brcmf_flowring_qlen(msgbuf->flow, flowid);
1303 if ((qlen > BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) ||
1304 ((qlen) && (atomic_read(&commonring->outstanding_tx) <
1305 BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS)))
1306 brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true);
1313 void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid)
1315 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1316 struct msgbuf_tx_flowring_delete_req *delete;
1317 struct brcmf_commonring *commonring;
1322 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
1323 brcmf_commonring_lock(commonring);
1324 ret_ptr = brcmf_commonring_reserve_for_write(commonring);
1326 brcmf_err("FW unaware, flowring will be removed !!\n");
1327 brcmf_commonring_unlock(commonring);
1328 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1332 delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr;
1334 ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid);
1336 delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE;
1337 delete->msg.ifidx = ifidx;
1338 delete->msg.request_id = 0;
1340 delete->flow_ring_id = cpu_to_le16(flowid +
1341 BRCMF_NROF_H2D_COMMON_MSGRINGS);
1344 brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n",
1347 err = brcmf_commonring_write_complete(commonring);
1348 brcmf_commonring_unlock(commonring);
1350 brcmf_err("Failed to submit RING_DELETE, flowring will be removed\n");
1351 brcmf_msgbuf_remove_flowring(msgbuf, flowid);
1356 static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data)
1358 struct brcmf_bus *bus_if = dev_get_drvdata(seq->private);
1359 struct brcmf_pub *drvr = bus_if->drvr;
1360 struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1361 struct brcmf_commonring *commonring;
1363 struct brcmf_flowring_ring *ring;
1364 struct brcmf_flowring_hash *hash;
1366 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT];
1367 seq_printf(seq, "h2d_ctl_submit: rp %4u, wp %4u, depth %4u\n",
1368 commonring->r_ptr, commonring->w_ptr, commonring->depth);
1369 commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT];
1370 seq_printf(seq, "h2d_rx_submit: rp %4u, wp %4u, depth %4u\n",
1371 commonring->r_ptr, commonring->w_ptr, commonring->depth);
1372 commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE];
1373 seq_printf(seq, "d2h_ctl_cmplt: rp %4u, wp %4u, depth %4u\n",
1374 commonring->r_ptr, commonring->w_ptr, commonring->depth);
1375 commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE];
1376 seq_printf(seq, "d2h_tx_cmplt: rp %4u, wp %4u, depth %4u\n",
1377 commonring->r_ptr, commonring->w_ptr, commonring->depth);
1378 commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE];
1379 seq_printf(seq, "d2h_rx_cmplt: rp %4u, wp %4u, depth %4u\n",
1380 commonring->r_ptr, commonring->w_ptr, commonring->depth);
1382 seq_printf(seq, "\nh2d_flowrings: depth %u\n",
1383 BRCMF_H2D_TXFLOWRING_MAX_ITEM);
1384 seq_puts(seq, "Active flowrings:\n");
1385 hash = msgbuf->flow->hash;
1386 for (i = 0; i < msgbuf->flow->nrofrings; i++) {
1387 if (!msgbuf->flow->rings[i])
1389 ring = msgbuf->flow->rings[i];
1390 if (ring->status != RING_OPEN)
1392 commonring = msgbuf->flowrings[i];
1393 hash = &msgbuf->flow->hash[ring->hash_id];
1394 seq_printf(seq, "id %3u: rp %4u, wp %4u, qlen %4u, blocked %u\n"
1395 " ifidx %u, fifo %u, da %pM\n",
1396 i, commonring->r_ptr, commonring->w_ptr,
1397 skb_queue_len(&ring->skblist), ring->blocked,
1398 hash->ifidx, hash->fifo, hash->mac);
1404 static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data)
1410 int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
1412 struct brcmf_bus_msgbuf *if_msgbuf;
1413 struct brcmf_msgbuf *msgbuf;
1417 if_msgbuf = drvr->bus_if->msgbuf;
1418 msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL);
1422 msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow");
1423 if (msgbuf->txflow_wq == NULL) {
1424 brcmf_err("workqueue creation failed\n");
1427 INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker);
1428 count = BITS_TO_LONGS(if_msgbuf->nrof_flowrings);
1429 count = count * sizeof(unsigned long);
1430 msgbuf->flow_map = kzalloc(count, GFP_KERNEL);
1431 if (!msgbuf->flow_map)
1434 msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL);
1435 if (!msgbuf->txstatus_done_map)
1438 msgbuf->drvr = drvr;
1439 msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev,
1440 BRCMF_TX_IOCTL_MAX_MSG_SIZE,
1441 &msgbuf->ioctbuf_handle,
1443 if (!msgbuf->ioctbuf)
1445 address = (u64)msgbuf->ioctbuf_handle;
1446 msgbuf->ioctbuf_phys_hi = address >> 32;
1447 msgbuf->ioctbuf_phys_lo = address & 0xffffffff;
1449 drvr->proto->hdrpull = brcmf_msgbuf_hdrpull;
1450 drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd;
1451 drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd;
1452 drvr->proto->txdata = brcmf_msgbuf_txdata;
1453 drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode;
1454 drvr->proto->delete_peer = brcmf_msgbuf_delete_peer;
1455 drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer;
1456 drvr->proto->pd = msgbuf;
1458 init_waitqueue_head(&msgbuf->ioctl_resp_wait);
1460 msgbuf->commonrings =
1461 (struct brcmf_commonring **)if_msgbuf->commonrings;
1462 msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings;
1463 msgbuf->nrof_flowrings = if_msgbuf->nrof_flowrings;
1464 msgbuf->flowring_dma_handle = kzalloc(msgbuf->nrof_flowrings *
1465 sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL);
1466 if (!msgbuf->flowring_dma_handle)
1469 msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset;
1470 msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost;
1472 msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST;
1473 msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST;
1475 msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS,
1477 if (!msgbuf->tx_pktids)
1479 msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS,
1481 if (!msgbuf->rx_pktids)
1484 msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev,
1485 if_msgbuf->nrof_flowrings);
1490 brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n",
1491 msgbuf->max_rxbufpost, msgbuf->max_eventbuf,
1492 msgbuf->max_ioctlrespbuf);
1495 brcmf_msgbuf_rxbuf_data_fill(msgbuf);
1496 if (msgbuf->max_rxbufpost != msgbuf->rxbufpost)
1501 } while (count < 10);
1502 brcmf_msgbuf_rxbuf_event_post(msgbuf);
1503 brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf);
1505 INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker);
1506 spin_lock_init(&msgbuf->flowring_work_lock);
1507 INIT_LIST_HEAD(&msgbuf->work_queue);
1509 brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read);
1515 kfree(msgbuf->flow_map);
1516 kfree(msgbuf->txstatus_done_map);
1517 brcmf_msgbuf_release_pktids(msgbuf);
1518 kfree(msgbuf->flowring_dma_handle);
1519 if (msgbuf->ioctbuf)
1520 dma_free_coherent(drvr->bus_if->dev,
1521 BRCMF_TX_IOCTL_MAX_MSG_SIZE,
1523 msgbuf->ioctbuf_handle);
1530 void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr)
1532 struct brcmf_msgbuf *msgbuf;
1533 struct brcmf_msgbuf_work_item *work;
1535 brcmf_dbg(TRACE, "Enter\n");
1536 if (drvr->proto->pd) {
1537 msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
1538 cancel_work_sync(&msgbuf->flowring_work);
1539 while (!list_empty(&msgbuf->work_queue)) {
1540 work = list_first_entry(&msgbuf->work_queue,
1541 struct brcmf_msgbuf_work_item,
1543 list_del(&work->queue);
1546 kfree(msgbuf->flow_map);
1547 kfree(msgbuf->txstatus_done_map);
1548 if (msgbuf->txflow_wq)
1549 destroy_workqueue(msgbuf->txflow_wq);
1551 brcmf_flowring_detach(msgbuf->flow);
1552 dma_free_coherent(drvr->bus_if->dev,
1553 BRCMF_TX_IOCTL_MAX_MSG_SIZE,
1554 msgbuf->ioctbuf, msgbuf->ioctbuf_handle);
1555 brcmf_msgbuf_release_pktids(msgbuf);
1556 kfree(msgbuf->flowring_dma_handle);
1558 drvr->proto->pd = NULL;