brcm80211: move under broadcom vendor directory

Part of reorganising wireless drivers directory and Kconfig. Note that I had to
edit Makefiles from subdirectories to use the new location.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 0 insertions, 2271 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
deleted file mode 100644
index 086cac3f86d6..000000000000
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ /dev/null
@@ -1,2271 +0,0 @@
-/*
- * Copyright (c) 2010 Broadcom Corporation
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/if_ether.h>
-#include <linux/spinlock.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/err.h>
-#include <linux/jiffies.h>
-#include <net/cfg80211.h>
-
-#include <brcmu_utils.h>
-#include <brcmu_wifi.h>
-#include "core.h"
-#include "debug.h"
-#include "bus.h"
-#include "fwil.h"
-#include "fwil_types.h"
-#include "fweh.h"
-#include "fwsignal.h"
-#include "p2p.h"
-#include "cfg80211.h"
-#include "proto.h"
-
-/**
- * DOC: Firmware Signalling
- *
- * Firmware can send signals to host and vice versa, which are passed in the
- * data packets using TLV based header. This signalling layer is on top of the
- * BDC bus protocol layer.
- */
-
-/*
- * single definition for firmware-driver flow control tlv's.
- *
- * each tlv is specified by BRCMF_FWS_TLV_DEF(name, ID, length).
- * A length value 0 indicates variable length tlv.
- */
-#define BRCMF_FWS_TLV_DEFLIST \
-	BRCMF_FWS_TLV_DEF(MAC_OPEN, 1, 1) \
-	BRCMF_FWS_TLV_DEF(MAC_CLOSE, 2, 1) \
-	BRCMF_FWS_TLV_DEF(MAC_REQUEST_CREDIT, 3, 2) \
-	BRCMF_FWS_TLV_DEF(TXSTATUS, 4, 4) \
-	BRCMF_FWS_TLV_DEF(PKTTAG, 5, 4) \
-	BRCMF_FWS_TLV_DEF(MACDESC_ADD,	6, 8) \
-	BRCMF_FWS_TLV_DEF(MACDESC_DEL, 7, 8) \
-	BRCMF_FWS_TLV_DEF(RSSI, 8, 1) \
-	BRCMF_FWS_TLV_DEF(INTERFACE_OPEN, 9, 1) \
-	BRCMF_FWS_TLV_DEF(INTERFACE_CLOSE, 10, 1) \
-	BRCMF_FWS_TLV_DEF(FIFO_CREDITBACK, 11, 6) \
-	BRCMF_FWS_TLV_DEF(PENDING_TRAFFIC_BMP, 12, 2) \
-	BRCMF_FWS_TLV_DEF(MAC_REQUEST_PACKET, 13, 3) \
-	BRCMF_FWS_TLV_DEF(HOST_REORDER_RXPKTS, 14, 10) \
-	BRCMF_FWS_TLV_DEF(TRANS_ID, 18, 6) \
-	BRCMF_FWS_TLV_DEF(COMP_TXSTATUS, 19, 1) \
-	BRCMF_FWS_TLV_DEF(FILLER, 255, 0)
-
-/*
- * enum brcmf_fws_tlv_type - definition of tlv identifiers.
- */
-#define BRCMF_FWS_TLV_DEF(name, id, len) \
-	BRCMF_FWS_TYPE_ ## name =  id,
-enum brcmf_fws_tlv_type {
-	BRCMF_FWS_TLV_DEFLIST
-	BRCMF_FWS_TYPE_INVALID
-};
-#undef BRCMF_FWS_TLV_DEF
-
-/*
- * enum brcmf_fws_tlv_len - definition of tlv lengths.
- */
-#define BRCMF_FWS_TLV_DEF(name, id, len) \
-	BRCMF_FWS_TYPE_ ## name ## _LEN = (len),
-enum brcmf_fws_tlv_len {
-	BRCMF_FWS_TLV_DEFLIST
-};
-#undef BRCMF_FWS_TLV_DEF
-
-#ifdef DEBUG
-/*
- * brcmf_fws_tlv_names - array of tlv names.
- */
-#define BRCMF_FWS_TLV_DEF(name, id, len) \
-	{ id, #name },
-static struct {
-	enum brcmf_fws_tlv_type id;
-	const char *name;
-} brcmf_fws_tlv_names[] = {
-	BRCMF_FWS_TLV_DEFLIST
-};
-#undef BRCMF_FWS_TLV_DEF
-
-
-static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(brcmf_fws_tlv_names); i++)
-		if (brcmf_fws_tlv_names[i].id == id)
-			return brcmf_fws_tlv_names[i].name;
-
-	return "INVALID";
-}
-#else
-static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
-{
-	return "NODEBUG";
-}
-#endif /* DEBUG */
-
-/*
- * The PKTTAG tlv has additional bytes when firmware-signalling
- * mode has REUSESEQ flag set.
- */
-#define BRCMF_FWS_TYPE_SEQ_LEN				2
-
-/*
- * flags used to enable tlv signalling from firmware.
- */
-#define BRCMF_FWS_FLAGS_RSSI_SIGNALS			0x0001
-#define BRCMF_FWS_FLAGS_XONXOFF_SIGNALS			0x0002
-#define BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS		0x0004
-#define BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE	0x0008
-#define BRCMF_FWS_FLAGS_PSQ_GENERATIONFSM_ENABLE	0x0010
-#define BRCMF_FWS_FLAGS_PSQ_ZERO_BUFFER_ENABLE		0x0020
-#define BRCMF_FWS_FLAGS_HOST_RXREORDER_ACTIVE		0x0040
-
-#define BRCMF_FWS_MAC_DESC_TABLE_SIZE			32
-#define BRCMF_FWS_MAC_DESC_ID_INVALID			0xff
-
-#define BRCMF_FWS_HOSTIF_FLOWSTATE_OFF			0
-#define BRCMF_FWS_HOSTIF_FLOWSTATE_ON			1
-#define BRCMF_FWS_FLOWCONTROL_HIWATER			128
-#define BRCMF_FWS_FLOWCONTROL_LOWATER			64
-
-#define BRCMF_FWS_PSQ_PREC_COUNT		((BRCMF_FWS_FIFO_COUNT + 1) * 2)
-#define BRCMF_FWS_PSQ_LEN				256
-
-#define BRCMF_FWS_HTOD_FLAG_PKTFROMHOST			0x01
-#define BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED		0x02
-
-#define BRCMF_FWS_RET_OK_NOSCHEDULE			0
-#define BRCMF_FWS_RET_OK_SCHEDULE			1
-
-#define BRCMF_FWS_MODE_REUSESEQ_SHIFT			3	/* seq reuse */
-#define BRCMF_FWS_MODE_SET_REUSESEQ(x, val)	((x) = \
-		((x) & ~(1 << BRCMF_FWS_MODE_REUSESEQ_SHIFT)) | \
-		(((val) & 1) << BRCMF_FWS_MODE_REUSESEQ_SHIFT))
-#define BRCMF_FWS_MODE_GET_REUSESEQ(x)	\
-		(((x) >> BRCMF_FWS_MODE_REUSESEQ_SHIFT) & 1)
-
-/**
- * enum brcmf_fws_skb_state - indicates processing state of skb.
- *
- * @BRCMF_FWS_SKBSTATE_NEW: sk_buff is newly arrived in the driver.
- * @BRCMF_FWS_SKBSTATE_DELAYED: sk_buff had to wait on queue.
- * @BRCMF_FWS_SKBSTATE_SUPPRESSED: sk_buff has been suppressed by firmware.
- * @BRCMF_FWS_SKBSTATE_TIM: allocated for TIM update info.
- */
-enum brcmf_fws_skb_state {
-	BRCMF_FWS_SKBSTATE_NEW,
-	BRCMF_FWS_SKBSTATE_DELAYED,
-	BRCMF_FWS_SKBSTATE_SUPPRESSED,
-	BRCMF_FWS_SKBSTATE_TIM
-};
-
-/**
- * struct brcmf_skbuff_cb - control buffer associated with skbuff.
- *
- * @bus_flags: 2 bytes reserved for bus specific parameters
- * @if_flags: holds interface index and packet related flags.
- * @htod: host to device packet identifier (used in PKTTAG tlv).
- * @htod_seq: this 16-bit is original seq number for every suppress packet.
- * @state: transmit state of the packet.
- * @mac: descriptor related to destination for this packet.
- *
- * This information is stored in control buffer struct sk_buff::cb, which
- * provides 48 bytes of storage so this structure should not exceed that.
- */
-struct brcmf_skbuff_cb {
-	u16 bus_flags;
-	u16 if_flags;
-	u32 htod;
-	u16 htod_seq;
-	enum brcmf_fws_skb_state state;
-	struct brcmf_fws_mac_descriptor *mac;
-};
-
-/*
- * macro casting skbuff control buffer to struct brcmf_skbuff_cb.
- */
-#define brcmf_skbcb(skb)	((struct brcmf_skbuff_cb *)((skb)->cb))
-
-/*
- * sk_buff control if flags
- *
- *	b[11]  - packet sent upon firmware request.
- *	b[10]  - packet only contains signalling data.
- *	b[9]   - packet is a tx packet.
- *	b[8]   - packet used requested credit
- *	b[7]   - interface in AP mode.
- *	b[3:0] - interface index.
- */
-#define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK	0x0800
-#define BRCMF_SKB_IF_FLAGS_REQUESTED_SHIFT	11
-#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_MASK	0x0400
-#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_SHIFT	10
-#define BRCMF_SKB_IF_FLAGS_TRANSMIT_MASK        0x0200
-#define BRCMF_SKB_IF_FLAGS_TRANSMIT_SHIFT	9
-#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_MASK	0x0100
-#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_SHIFT	8
-#define BRCMF_SKB_IF_FLAGS_IF_AP_MASK		0x0080
-#define BRCMF_SKB_IF_FLAGS_IF_AP_SHIFT		7
-#define BRCMF_SKB_IF_FLAGS_INDEX_MASK		0x000f
-#define BRCMF_SKB_IF_FLAGS_INDEX_SHIFT		0
-
-#define brcmf_skb_if_flags_set_field(skb, field, value) \
-	brcmu_maskset16(&(brcmf_skbcb(skb)->if_flags), \
-			BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \
-			BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT, (value))
-#define brcmf_skb_if_flags_get_field(skb, field) \
-	brcmu_maskget16(brcmf_skbcb(skb)->if_flags, \
-			BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \
-			BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT)
-
-/*
- * sk_buff control packet identifier
- *
- * 32-bit packet identifier used in PKTTAG tlv from host to dongle.
- *
- * - Generated at the host (e.g. dhd)
- * - Seen as a generic sequence number by firmware except for the flags field.
- *
- * Generation	: b[31]	=> generation number for this packet [host->fw]
- *			   OR, current generation number [fw->host]
- * Flags	: b[30:27] => command, status flags
- * FIFO-AC	: b[26:24] => AC-FIFO id
- * h-slot	: b[23:8] => hanger-slot
- * freerun	: b[7:0] => A free running counter
- */
-#define BRCMF_SKB_HTOD_TAG_GENERATION_MASK		0x80000000
-#define BRCMF_SKB_HTOD_TAG_GENERATION_SHIFT		31
-#define BRCMF_SKB_HTOD_TAG_FLAGS_MASK			0x78000000
-#define BRCMF_SKB_HTOD_TAG_FLAGS_SHIFT			27
-#define BRCMF_SKB_HTOD_TAG_FIFO_MASK			0x07000000
-#define BRCMF_SKB_HTOD_TAG_FIFO_SHIFT			24
-#define BRCMF_SKB_HTOD_TAG_HSLOT_MASK			0x00ffff00
-#define BRCMF_SKB_HTOD_TAG_HSLOT_SHIFT			8
-#define BRCMF_SKB_HTOD_TAG_FREERUN_MASK			0x000000ff
-#define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT		0
-
-#define brcmf_skb_htod_tag_set_field(skb, field, value) \
-	brcmu_maskset32(&(brcmf_skbcb(skb)->htod), \
-			BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \
-			BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT, (value))
-#define brcmf_skb_htod_tag_get_field(skb, field) \
-	brcmu_maskget32(brcmf_skbcb(skb)->htod, \
-			BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \
-			BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT)
-
-#define BRCMF_SKB_HTOD_SEQ_FROMFW_MASK			0x2000
-#define BRCMF_SKB_HTOD_SEQ_FROMFW_SHIFT			13
-#define BRCMF_SKB_HTOD_SEQ_FROMDRV_MASK			0x1000
-#define BRCMF_SKB_HTOD_SEQ_FROMDRV_SHIFT		12
-#define BRCMF_SKB_HTOD_SEQ_NR_MASK			0x0fff
-#define BRCMF_SKB_HTOD_SEQ_NR_SHIFT			0
-
-#define brcmf_skb_htod_seq_set_field(skb, field, value) \
-	brcmu_maskset16(&(brcmf_skbcb(skb)->htod_seq), \
-			BRCMF_SKB_HTOD_SEQ_ ## field ## _MASK, \
-			BRCMF_SKB_HTOD_SEQ_ ## field ## _SHIFT, (value))
-#define brcmf_skb_htod_seq_get_field(skb, field) \
-	brcmu_maskget16(brcmf_skbcb(skb)->htod_seq, \
-			BRCMF_SKB_HTOD_SEQ_ ## field ## _MASK, \
-			BRCMF_SKB_HTOD_SEQ_ ## field ## _SHIFT)
-
-#define BRCMF_FWS_TXSTAT_GENERATION_MASK	0x80000000
-#define BRCMF_FWS_TXSTAT_GENERATION_SHIFT	31
-#define BRCMF_FWS_TXSTAT_FLAGS_MASK		0x78000000
-#define BRCMF_FWS_TXSTAT_FLAGS_SHIFT		27
-#define BRCMF_FWS_TXSTAT_FIFO_MASK		0x07000000
-#define BRCMF_FWS_TXSTAT_FIFO_SHIFT		24
-#define BRCMF_FWS_TXSTAT_HSLOT_MASK		0x00FFFF00
-#define BRCMF_FWS_TXSTAT_HSLOT_SHIFT		8
-#define BRCMF_FWS_TXSTAT_FREERUN_MASK		0x000000FF
-#define BRCMF_FWS_TXSTAT_FREERUN_SHIFT		0
-
-#define brcmf_txstatus_get_field(txs, field) \
-	brcmu_maskget32(txs, BRCMF_FWS_TXSTAT_ ## field ## _MASK, \
-			BRCMF_FWS_TXSTAT_ ## field ## _SHIFT)
-
-/* How long to defer borrowing in jiffies */
-#define BRCMF_FWS_BORROW_DEFER_PERIOD		(HZ / 10)
-
-/**
- * enum brcmf_fws_fifo - fifo indices used by dongle firmware.
- *
- * @BRCMF_FWS_FIFO_FIRST: first fifo, ie. background.
- * @BRCMF_FWS_FIFO_AC_BK: fifo for background traffic.
- * @BRCMF_FWS_FIFO_AC_BE: fifo for best-effort traffic.
- * @BRCMF_FWS_FIFO_AC_VI: fifo for video traffic.
- * @BRCMF_FWS_FIFO_AC_VO: fifo for voice traffic.
- * @BRCMF_FWS_FIFO_BCMC: fifo for broadcast/multicast (AP only).
- * @BRCMF_FWS_FIFO_ATIM: fifo for ATIM (AP only).
- * @BRCMF_FWS_FIFO_COUNT: number of fifos.
- */
-enum brcmf_fws_fifo {
-	BRCMF_FWS_FIFO_FIRST,
-	BRCMF_FWS_FIFO_AC_BK = BRCMF_FWS_FIFO_FIRST,
-	BRCMF_FWS_FIFO_AC_BE,
-	BRCMF_FWS_FIFO_AC_VI,
-	BRCMF_FWS_FIFO_AC_VO,
-	BRCMF_FWS_FIFO_BCMC,
-	BRCMF_FWS_FIFO_ATIM,
-	BRCMF_FWS_FIFO_COUNT
-};
-
-/**
- * enum brcmf_fws_txstatus - txstatus flag values.
- *
- * @BRCMF_FWS_TXSTATUS_DISCARD:
- *	host is free to discard the packet.
- * @BRCMF_FWS_TXSTATUS_CORE_SUPPRESS:
- *	802.11 core suppressed the packet.
- * @BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS:
- *	firmware suppress the packet as device is already in PS mode.
- * @BRCMF_FWS_TXSTATUS_FW_TOSSED:
- *	firmware tossed the packet.
- * @BRCMF_FWS_TXSTATUS_HOST_TOSSED:
- *	host tossed the packet.
- */
-enum brcmf_fws_txstatus {
-	BRCMF_FWS_TXSTATUS_DISCARD,
-	BRCMF_FWS_TXSTATUS_CORE_SUPPRESS,
-	BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS,
-	BRCMF_FWS_TXSTATUS_FW_TOSSED,
-	BRCMF_FWS_TXSTATUS_HOST_TOSSED
-};
-
-enum brcmf_fws_fcmode {
-	BRCMF_FWS_FCMODE_NONE,
-	BRCMF_FWS_FCMODE_IMPLIED_CREDIT,
-	BRCMF_FWS_FCMODE_EXPLICIT_CREDIT
-};
-
-enum brcmf_fws_mac_desc_state {
-	BRCMF_FWS_STATE_OPEN = 1,
-	BRCMF_FWS_STATE_CLOSE
-};
-
-/**
- * struct brcmf_fws_mac_descriptor - firmware signalling data per node/interface
- *
- * @occupied: slot is in use.
- * @mac_handle: handle for mac entry determined by firmware.
- * @interface_id: interface index.
- * @state: current state.
- * @suppressed: mac entry is suppressed.
- * @generation: generation bit.
- * @ac_bitmap: ac queue bitmap.
- * @requested_credit: credits requested by firmware.
- * @ea: ethernet address.
- * @seq: per-node free-running sequence.
- * @psq: power-save queue.
- * @transit_count: packet in transit to firmware.
- */
-struct brcmf_fws_mac_descriptor {
-	char name[16];
-	u8 occupied;
-	u8 mac_handle;
-	u8 interface_id;
-	u8 state;
-	bool suppressed;
-	u8 generation;
-	u8 ac_bitmap;
-	u8 requested_credit;
-	u8 requested_packet;
-	u8 ea[ETH_ALEN];
-	u8 seq[BRCMF_FWS_FIFO_COUNT];
-	struct pktq psq;
-	int transit_count;
-	int suppr_transit_count;
-	bool send_tim_signal;
-	u8 traffic_pending_bmp;
-	u8 traffic_lastreported_bmp;
-};
-
-#define BRCMF_FWS_HANGER_MAXITEMS	1024
-
-/**
- * enum brcmf_fws_hanger_item_state - state of hanger item.
- *
- * @BRCMF_FWS_HANGER_ITEM_STATE_FREE: item is free for use.
- * @BRCMF_FWS_HANGER_ITEM_STATE_INUSE: item is in use.
- * @BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED: item was suppressed.
- */
-enum brcmf_fws_hanger_item_state {
-	BRCMF_FWS_HANGER_ITEM_STATE_FREE = 1,
-	BRCMF_FWS_HANGER_ITEM_STATE_INUSE,
-	BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED
-};
-
-
-/**
- * struct brcmf_fws_hanger_item - single entry for tx pending packet.
- *
- * @state: entry is either free or occupied.
- * @pkt: packet itself.
- */
-struct brcmf_fws_hanger_item {
-	enum brcmf_fws_hanger_item_state state;
-	struct sk_buff *pkt;
-};
-
-/**
- * struct brcmf_fws_hanger - holds packets awaiting firmware txstatus.
- *
- * @pushed: packets pushed to await txstatus.
- * @popped: packets popped upon handling txstatus.
- * @failed_to_push: packets that could not be pushed.
- * @failed_to_pop: packets that could not be popped.
- * @failed_slotfind: packets for which failed to find an entry.
- * @slot_pos: last returned item index for a free entry.
- * @items: array of hanger items.
- */
-struct brcmf_fws_hanger {
-	u32 pushed;
-	u32 popped;
-	u32 failed_to_push;
-	u32 failed_to_pop;
-	u32 failed_slotfind;
-	u32 slot_pos;
-	struct brcmf_fws_hanger_item items[BRCMF_FWS_HANGER_MAXITEMS];
-};
-
-struct brcmf_fws_macdesc_table {
-	struct brcmf_fws_mac_descriptor nodes[BRCMF_FWS_MAC_DESC_TABLE_SIZE];
-	struct brcmf_fws_mac_descriptor iface[BRCMF_MAX_IFS];
-	struct brcmf_fws_mac_descriptor other;
-};
-
-struct brcmf_fws_stats {
-	u32 tlv_parse_failed;
-	u32 tlv_invalid_type;
-	u32 header_only_pkt;
-	u32 header_pulls;
-	u32 pkt2bus;
-	u32 send_pkts[5];
-	u32 requested_sent[5];
-	u32 generic_error;
-	u32 mac_update_failed;
-	u32 mac_ps_update_failed;
-	u32 if_update_failed;
-	u32 packet_request_failed;
-	u32 credit_request_failed;
-	u32 rollback_success;
-	u32 rollback_failed;
-	u32 delayq_full_error;
-	u32 supprq_full_error;
-	u32 txs_indicate;
-	u32 txs_discard;
-	u32 txs_supp_core;
-	u32 txs_supp_ps;
-	u32 txs_tossed;
-	u32 txs_host_tossed;
-	u32 bus_flow_block;
-	u32 fws_flow_block;
-};
-
-struct brcmf_fws_info {
-	struct brcmf_pub *drvr;
-	spinlock_t spinlock;
-	ulong flags;
-	struct brcmf_fws_stats stats;
-	struct brcmf_fws_hanger hanger;
-	enum brcmf_fws_fcmode fcmode;
-	bool fw_signals;
-	bool bcmc_credit_check;
-	struct brcmf_fws_macdesc_table desc;
-	struct workqueue_struct *fws_wq;
-	struct work_struct fws_dequeue_work;
-	u32 fifo_enqpkt[BRCMF_FWS_FIFO_COUNT];
-	int fifo_credit[BRCMF_FWS_FIFO_COUNT];
-	int credits_borrowed[BRCMF_FWS_FIFO_AC_VO + 1];
-	int deq_node_pos[BRCMF_FWS_FIFO_COUNT];
-	u32 fifo_credit_map;
-	u32 fifo_delay_map;
-	unsigned long borrow_defer_timestamp;
-	bool bus_flow_blocked;
-	bool creditmap_received;
-	u8 mode;
-	bool avoid_queueing;
-};
-
-/*
- * brcmf_fws_prio2fifo - mapping from 802.1d priority to firmware fifo index.
- */
-static const int brcmf_fws_prio2fifo[] = {
-	BRCMF_FWS_FIFO_AC_BE,
-	BRCMF_FWS_FIFO_AC_BK,
-	BRCMF_FWS_FIFO_AC_BK,
-	BRCMF_FWS_FIFO_AC_BE,
-	BRCMF_FWS_FIFO_AC_VI,
-	BRCMF_FWS_FIFO_AC_VI,
-	BRCMF_FWS_FIFO_AC_VO,
-	BRCMF_FWS_FIFO_AC_VO
-};
-
-static int fcmode;
-module_param(fcmode, int, S_IRUSR);
-MODULE_PARM_DESC(fcmode, "mode of firmware signalled flow control");
-
-#define BRCMF_FWS_TLV_DEF(name, id, len) \
-	case BRCMF_FWS_TYPE_ ## name: \
-		return len;
-
-/**
- * brcmf_fws_get_tlv_len() - returns defined length for given tlv id.
- *
- * @fws: firmware-signalling information.
- * @id: identifier of the TLV.
- *
- * Return: the specified length for the given TLV; Otherwise -EINVAL.
- */
-static int brcmf_fws_get_tlv_len(struct brcmf_fws_info *fws,
-				 enum brcmf_fws_tlv_type id)
-{
-	switch (id) {
-	BRCMF_FWS_TLV_DEFLIST
-	default:
-		fws->stats.tlv_invalid_type++;
-		break;
-	}
-	return -EINVAL;
-}
-#undef BRCMF_FWS_TLV_DEF
-
-static void brcmf_fws_lock(struct brcmf_fws_info *fws)
-		__acquires(&fws->spinlock)
-{
-	spin_lock_irqsave(&fws->spinlock, fws->flags);
-}
-
-static void brcmf_fws_unlock(struct brcmf_fws_info *fws)
-		__releases(&fws->spinlock)
-{
-	spin_unlock_irqrestore(&fws->spinlock, fws->flags);
-}
-
-static bool brcmf_fws_ifidx_match(struct sk_buff *skb, void *arg)
-{
-	u32 ifidx = brcmf_skb_if_flags_get_field(skb, INDEX);
-	return ifidx == *(int *)arg;
-}
-
-static void brcmf_fws_psq_flush(struct brcmf_fws_info *fws, struct pktq *q,
-				int ifidx)
-{
-	bool (*matchfn)(struct sk_buff *, void *) = NULL;
-	struct sk_buff *skb;
-	int prec;
-
-	if (ifidx != -1)
-		matchfn = brcmf_fws_ifidx_match;
-	for (prec = 0; prec < q->num_prec; prec++) {
-		skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
-		while (skb) {
-			brcmu_pkt_buf_free_skb(skb);
-			skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
-		}
-	}
-}
-
-static void brcmf_fws_hanger_init(struct brcmf_fws_hanger *hanger)
-{
-	int i;
-
-	memset(hanger, 0, sizeof(*hanger));
-	for (i = 0; i < ARRAY_SIZE(hanger->items); i++)
-		hanger->items[i].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
-}
-
-static u32 brcmf_fws_hanger_get_free_slot(struct brcmf_fws_hanger *h)
-{
-	u32 i;
-
-	i = (h->slot_pos + 1) % BRCMF_FWS_HANGER_MAXITEMS;
-
-	while (i != h->slot_pos) {
-		if (h->items[i].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
-			h->slot_pos = i;
-			goto done;
-		}
-		i++;
-		if (i == BRCMF_FWS_HANGER_MAXITEMS)
-			i = 0;
-	}
-	brcmf_err("all slots occupied\n");
-	h->failed_slotfind++;
-	i = BRCMF_FWS_HANGER_MAXITEMS;
-done:
-	return i;
-}
-
-static int brcmf_fws_hanger_pushpkt(struct brcmf_fws_hanger *h,
-				    struct sk_buff *pkt, u32 slot_id)
-{
-	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
-		return -ENOENT;
-
-	if (h->items[slot_id].state != BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
-		brcmf_err("slot is not free\n");
-		h->failed_to_push++;
-		return -EINVAL;
-	}
-
-	h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_INUSE;
-	h->items[slot_id].pkt = pkt;
-	h->pushed++;
-	return 0;
-}
-
-static inline int brcmf_fws_hanger_poppkt(struct brcmf_fws_hanger *h,
-					  u32 slot_id, struct sk_buff **pktout,
-					  bool remove_item)
-{
-	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
-		return -ENOENT;
-
-	if (h->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
-		brcmf_err("entry not in use\n");
-		h->failed_to_pop++;
-		return -EINVAL;
-	}
-
-	*pktout = h->items[slot_id].pkt;
-	if (remove_item) {
-		h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
-		h->items[slot_id].pkt = NULL;
-		h->popped++;
-	}
-	return 0;
-}
-
-static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
-					    u32 slot_id)
-{
-	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
-		return -ENOENT;
-
-	if (h->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
-		brcmf_err("entry not in use\n");
-		return -EINVAL;
-	}
-
-	h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED;
-	return 0;
-}
-
-static void brcmf_fws_hanger_cleanup(struct brcmf_fws_info *fws,
-				     bool (*fn)(struct sk_buff *, void *),
-				     int ifidx)
-{
-	struct brcmf_fws_hanger *h = &fws->hanger;
-	struct sk_buff *skb;
-	int i;
-	enum brcmf_fws_hanger_item_state s;
-
-	for (i = 0; i < ARRAY_SIZE(h->items); i++) {
-		s = h->items[i].state;
-		if (s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE ||
-		    s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED) {
-			skb = h->items[i].pkt;
-			if (fn == NULL || fn(skb, &ifidx)) {
-				/* suppress packets freed from psq */
-				if (s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE)
-					brcmu_pkt_buf_free_skb(skb);
-				h->items[i].state =
-					BRCMF_FWS_HANGER_ITEM_STATE_FREE;
-			}
-		}
-	}
-}
-
-static void brcmf_fws_macdesc_set_name(struct brcmf_fws_info *fws,
-				       struct brcmf_fws_mac_descriptor *desc)
-{
-	if (desc == &fws->desc.other)
-		strlcpy(desc->name, "MAC-OTHER", sizeof(desc->name));
-	else if (desc->mac_handle)
-		scnprintf(desc->name, sizeof(desc->name), "MAC-%d:%d",
-			  desc->mac_handle, desc->interface_id);
-	else
-		scnprintf(desc->name, sizeof(desc->name), "MACIF:%d",
-			  desc->interface_id);
-}
-
-static void brcmf_fws_macdesc_init(struct brcmf_fws_mac_descriptor *desc,
-				   u8 *addr, u8 ifidx)
-{
-	brcmf_dbg(TRACE,
-		  "enter: desc %p ea=%pM, ifidx=%u\n", desc, addr, ifidx);
-	desc->occupied = 1;
-	desc->state = BRCMF_FWS_STATE_OPEN;
-	desc->requested_credit = 0;
-	desc->requested_packet = 0;
-	/* depending on use may need ifp->bssidx instead */
-	desc->interface_id = ifidx;
-	desc->ac_bitmap = 0xff; /* update this when handling APSD */
-	if (addr)
-		memcpy(&desc->ea[0], addr, ETH_ALEN);
-}
-
-static
-void brcmf_fws_macdesc_deinit(struct brcmf_fws_mac_descriptor *desc)
-{
-	brcmf_dbg(TRACE,
-		  "enter: ea=%pM, ifidx=%u\n", desc->ea, desc->interface_id);
-	desc->occupied = 0;
-	desc->state = BRCMF_FWS_STATE_CLOSE;
-	desc->requested_credit = 0;
-	desc->requested_packet = 0;
-}
-
-static struct brcmf_fws_mac_descriptor *
-brcmf_fws_macdesc_lookup(struct brcmf_fws_info *fws, u8 *ea)
-{
-	struct brcmf_fws_mac_descriptor *entry;
-	int i;
-
-	if (ea == NULL)
-		return ERR_PTR(-EINVAL);
-
-	entry = &fws->desc.nodes[0];
-	for (i = 0; i < ARRAY_SIZE(fws->desc.nodes); i++) {
-		if (entry->occupied && !memcmp(entry->ea, ea, ETH_ALEN))
-			return entry;
-		entry++;
-	}
-
-	return ERR_PTR(-ENOENT);
-}
-
-static struct brcmf_fws_mac_descriptor*
-brcmf_fws_macdesc_find(struct brcmf_fws_info *fws, struct brcmf_if *ifp, u8 *da)
-{
-	struct brcmf_fws_mac_descriptor *entry = &fws->desc.other;
-	bool multicast;
-
-	multicast = is_multicast_ether_addr(da);
-
-	/* Multicast destination, STA and P2P clients get the interface entry.
-	 * STA/GC gets the Mac Entry for TDLS destinations, TDLS destinations
-	 * have their own entry.
-	 */
-	if (multicast && ifp->fws_desc) {
-		entry = ifp->fws_desc;
-		goto done;
-	}
-
-	entry = brcmf_fws_macdesc_lookup(fws, da);
-	if (IS_ERR(entry))
-		entry = ifp->fws_desc;
-
-done:
-	return entry;
-}
-
-static bool brcmf_fws_macdesc_closed(struct brcmf_fws_info *fws,
-				     struct brcmf_fws_mac_descriptor *entry,
-				     int fifo)
-{
-	struct brcmf_fws_mac_descriptor *if_entry;
-	bool closed;
-
-	/* for unique destination entries the related interface
-	 * may be closed.
-	 */
-	if (entry->mac_handle) {
-		if_entry = &fws->desc.iface[entry->interface_id];
-		if (if_entry->state == BRCMF_FWS_STATE_CLOSE)
-			return true;
-	}
-	/* an entry is closed when the state is closed and
-	 * the firmware did not request anything.
-	 */
-	closed = entry->state == BRCMF_FWS_STATE_CLOSE &&
-		 !entry->requested_credit && !entry->requested_packet;
-
-	/* Or firmware does not allow traffic for given fifo */
-	return closed || !(entry->ac_bitmap & BIT(fifo));
-}
-
-static void brcmf_fws_macdesc_cleanup(struct brcmf_fws_info *fws,
-				      struct brcmf_fws_mac_descriptor *entry,
-				      int ifidx)
-{
-	if (entry->occupied && (ifidx == -1 || ifidx == entry->interface_id)) {
-		brcmf_fws_psq_flush(fws, &entry->psq, ifidx);
-		entry->occupied = !!(entry->psq.len);
-	}
-}
-
-static void brcmf_fws_bus_txq_cleanup(struct brcmf_fws_info *fws,
-				      bool (*fn)(struct sk_buff *, void *),
-				      int ifidx)
-{
-	struct brcmf_fws_hanger_item *hi;
-	struct pktq *txq;
-	struct sk_buff *skb;
-	int prec;
-	u32 hslot;
-
-	txq = brcmf_bus_gettxq(fws->drvr->bus_if);
-	if (IS_ERR(txq)) {
-		brcmf_dbg(TRACE, "no txq to clean up\n");
-		return;
-	}
-
-	for (prec = 0; prec < txq->num_prec; prec++) {
-		skb = brcmu_pktq_pdeq_match(txq, prec, fn, &ifidx);
-		while (skb) {
-			hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-			hi = &fws->hanger.items[hslot];
-			WARN_ON(skb != hi->pkt);
-			hi->state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
-			brcmu_pkt_buf_free_skb(skb);
-			skb = brcmu_pktq_pdeq_match(txq, prec, fn, &ifidx);
-		}
-	}
-}
-
-static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx)
-{
-	int i;
-	struct brcmf_fws_mac_descriptor *table;
-	bool (*matchfn)(struct sk_buff *, void *) = NULL;
-
-	if (fws == NULL)
-		return;
-
-	if (ifidx != -1)
-		matchfn = brcmf_fws_ifidx_match;
-
-	/* cleanup individual nodes */
-	table = &fws->desc.nodes[0];
-	for (i = 0; i < ARRAY_SIZE(fws->desc.nodes); i++)
-		brcmf_fws_macdesc_cleanup(fws, &table[i], ifidx);
-
-	brcmf_fws_macdesc_cleanup(fws, &fws->desc.other, ifidx);
-	brcmf_fws_bus_txq_cleanup(fws, matchfn, ifidx);
-	brcmf_fws_hanger_cleanup(fws, matchfn, ifidx);
-}
-
-static u8 brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
-{
-	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
-	u8 *wlh;
-	u16 data_offset = 0;
-	u8 fillers;
-	__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
-	__le16 pktseq = cpu_to_le16(brcmf_skbcb(skb)->htod_seq);
-
-	brcmf_dbg(TRACE, "enter: %s, idx=%d hslot=%d htod %X seq %X\n",
-		  entry->name, brcmf_skb_if_flags_get_field(skb, INDEX),
-		  (le32_to_cpu(pkttag) >> 8) & 0xffff,
-		  brcmf_skbcb(skb)->htod, brcmf_skbcb(skb)->htod_seq);
-	if (entry->send_tim_signal)
-		data_offset += 2 + BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
-	if (BRCMF_FWS_MODE_GET_REUSESEQ(fws->mode))
-		data_offset += BRCMF_FWS_TYPE_SEQ_LEN;
-	/* +2 is for Type[1] and Len[1] in TLV, plus TIM signal */
-	data_offset += 2 + BRCMF_FWS_TYPE_PKTTAG_LEN;
-	fillers = round_up(data_offset, 4) - data_offset;
-	data_offset += fillers;
-
-	skb_push(skb, data_offset);
-	wlh = skb->data;
-
-	wlh[0] = BRCMF_FWS_TYPE_PKTTAG;
-	wlh[1] = BRCMF_FWS_TYPE_PKTTAG_LEN;
-	memcpy(&wlh[2], &pkttag, sizeof(pkttag));
-	if (BRCMF_FWS_MODE_GET_REUSESEQ(fws->mode)) {
-		wlh[1] += BRCMF_FWS_TYPE_SEQ_LEN;
-		memcpy(&wlh[2 + BRCMF_FWS_TYPE_PKTTAG_LEN], &pktseq,
-		       sizeof(pktseq));
-	}
-	wlh += wlh[1] + 2;
-
-	if (entry->send_tim_signal) {
-		entry->send_tim_signal = 0;
-		wlh[0] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP;
-		wlh[1] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
-		wlh[2] = entry->mac_handle;
-		wlh[3] = entry->traffic_pending_bmp;
-		brcmf_dbg(TRACE, "adding TIM info: handle %d bmp 0x%X\n",
-			  entry->mac_handle, entry->traffic_pending_bmp);
-		wlh += BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2;
-		entry->traffic_lastreported_bmp = entry->traffic_pending_bmp;
-	}
-	if (fillers)
-		memset(wlh, BRCMF_FWS_TYPE_FILLER, fillers);
-
-	return (u8)(data_offset >> 2);
-}
-
-static bool brcmf_fws_tim_update(struct brcmf_fws_info *fws,
-				 struct brcmf_fws_mac_descriptor *entry,
-				 int fifo, bool send_immediately)
-{
-	struct sk_buff *skb;
-	struct brcmf_skbuff_cb *skcb;
-	s32 err;
-	u32 len;
-	u8 data_offset;
-	int ifidx;
-
-	/* check delayedQ and suppressQ in one call using bitmap */
-	if (brcmu_pktq_mlen(&entry->psq, 3 << (fifo * 2)) == 0)
-		entry->traffic_pending_bmp &= ~NBITVAL(fifo);
-	else
-		entry->traffic_pending_bmp |= NBITVAL(fifo);
-
-	entry->send_tim_signal = false;
-	if (entry->traffic_lastreported_bmp != entry->traffic_pending_bmp)
-		entry->send_tim_signal = true;
-	if (send_immediately && entry->send_tim_signal &&
-	    entry->state == BRCMF_FWS_STATE_CLOSE) {
-		/* create a dummy packet and sent that. The traffic          */
-		/* bitmap info will automatically be attached to that packet */
-		len = BRCMF_FWS_TYPE_PKTTAG_LEN + 2 +
-		      BRCMF_FWS_TYPE_SEQ_LEN +
-		      BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2 +
-		      4 + fws->drvr->hdrlen;
-		skb = brcmu_pkt_buf_get_skb(len);
-		if (skb == NULL)
-			return false;
-		skb_pull(skb, len);
-		skcb = brcmf_skbcb(skb);
-		skcb->mac = entry;
-		skcb->state = BRCMF_FWS_SKBSTATE_TIM;
-		skcb->htod = 0;
-		skcb->htod_seq = 0;
-		data_offset = brcmf_fws_hdrpush(fws, skb);
-		ifidx = brcmf_skb_if_flags_get_field(skb, INDEX);
-		brcmf_fws_unlock(fws);
-		err = brcmf_proto_txdata(fws->drvr, ifidx, data_offset, skb);
-		brcmf_fws_lock(fws);
-		if (err)
-			brcmu_pkt_buf_free_skb(skb);
-		return true;
-	}
-	return false;
-}
-
-static void
-brcmf_fws_flow_control_check(struct brcmf_fws_info *fws, struct pktq *pq,
-			     u8 if_id)
-{
-	struct brcmf_if *ifp = brcmf_get_ifp(fws->drvr, if_id);
-
-	if (WARN_ON(!ifp))
-		return;
-
-	if ((ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) &&
-	    pq->len <= BRCMF_FWS_FLOWCONTROL_LOWATER)
-		brcmf_txflowblock_if(ifp,
-				     BRCMF_NETIF_STOP_REASON_FWS_FC, false);
-	if (!(ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) &&
-	    pq->len >= BRCMF_FWS_FLOWCONTROL_HIWATER) {
-		fws->stats.fws_flow_block++;
-		brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_FWS_FC, true);
-	}
-	return;
-}
-
-static int brcmf_fws_rssi_indicate(struct brcmf_fws_info *fws, s8 rssi)
-{
-	brcmf_dbg(CTL, "rssi %d\n", rssi);
-	return 0;
-}
-
-static
-int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
-{
-	struct brcmf_fws_mac_descriptor *entry, *existing;
-	u8 mac_handle;
-	u8 ifidx;
-	u8 *addr;
-
-	mac_handle = *data++;
-	ifidx = *data++;
-	addr = data;
-
-	entry = &fws->desc.nodes[mac_handle & 0x1F];
-	if (type == BRCMF_FWS_TYPE_MACDESC_DEL) {
-		if (entry->occupied) {
-			brcmf_dbg(TRACE, "deleting %s mac %pM\n",
-				  entry->name, addr);
-			brcmf_fws_lock(fws);
-			brcmf_fws_macdesc_cleanup(fws, entry, -1);
-			brcmf_fws_macdesc_deinit(entry);
-			brcmf_fws_unlock(fws);
-		} else
-			fws->stats.mac_update_failed++;
-		return 0;
-	}
-
-	existing = brcmf_fws_macdesc_lookup(fws, addr);
-	if (IS_ERR(existing)) {
-		if (!entry->occupied) {
-			brcmf_fws_lock(fws);
-			entry->mac_handle = mac_handle;
-			brcmf_fws_macdesc_init(entry, addr, ifidx);
-			brcmf_fws_macdesc_set_name(fws, entry);
-			brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
-					BRCMF_FWS_PSQ_LEN);
-			brcmf_fws_unlock(fws);
-			brcmf_dbg(TRACE, "add %s mac %pM\n", entry->name, addr);
-		} else {
-			fws->stats.mac_update_failed++;
-		}
-	} else {
-		if (entry != existing) {
-			brcmf_dbg(TRACE, "copy mac %s\n", existing->name);
-			brcmf_fws_lock(fws);
-			memcpy(entry, existing,
-			       offsetof(struct brcmf_fws_mac_descriptor, psq));
-			entry->mac_handle = mac_handle;
-			brcmf_fws_macdesc_deinit(existing);
-			brcmf_fws_macdesc_set_name(fws, entry);
-			brcmf_fws_unlock(fws);
-			brcmf_dbg(TRACE, "relocate %s mac %pM\n", entry->name,
-				  addr);
-		} else {
-			brcmf_dbg(TRACE, "use existing\n");
-			WARN_ON(entry->mac_handle != mac_handle);
-			/* TODO: what should we do here: continue, reinit, .. */
-		}
-	}
-	return 0;
-}
-
-static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
-					    u8 type, u8 *data)
-{
-	struct brcmf_fws_mac_descriptor *entry;
-	u8 mac_handle;
-	int ret;
-
-	mac_handle = data[0];
-	entry = &fws->desc.nodes[mac_handle & 0x1F];
-	if (!entry->occupied) {
-		fws->stats.mac_ps_update_failed++;
-		return -ESRCH;
-	}
-	brcmf_fws_lock(fws);
-	/* a state update should wipe old credits */
-	entry->requested_credit = 0;
-	entry->requested_packet = 0;
-	if (type == BRCMF_FWS_TYPE_MAC_OPEN) {
-		entry->state = BRCMF_FWS_STATE_OPEN;
-		ret = BRCMF_FWS_RET_OK_SCHEDULE;
-	} else {
-		entry->state = BRCMF_FWS_STATE_CLOSE;
-		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_BK, false);
-		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_BE, false);
-		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_VI, false);
-		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_VO, true);
-		ret = BRCMF_FWS_RET_OK_NOSCHEDULE;
-	}
-	brcmf_fws_unlock(fws);
-	return ret;
-}
-
-static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
-					      u8 type, u8 *data)
-{
-	struct brcmf_fws_mac_descriptor *entry;
-	u8 ifidx;
-	int ret;
-
-	ifidx = data[0];
-
-	if (ifidx >= BRCMF_MAX_IFS) {
-		ret = -ERANGE;
-		goto fail;
-	}
-
-	entry = &fws->desc.iface[ifidx];
-	if (!entry->occupied) {
-		ret = -ESRCH;
-		goto fail;
-	}
-
-	brcmf_dbg(TRACE, "%s (%d): %s\n", brcmf_fws_get_tlv_name(type), type,
-		  entry->name);
-	brcmf_fws_lock(fws);
-	switch (type) {
-	case BRCMF_FWS_TYPE_INTERFACE_OPEN:
-		entry->state = BRCMF_FWS_STATE_OPEN;
-		ret = BRCMF_FWS_RET_OK_SCHEDULE;
-		break;
-	case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
-		entry->state = BRCMF_FWS_STATE_CLOSE;
-		ret = BRCMF_FWS_RET_OK_NOSCHEDULE;
-		break;
-	default:
-		ret = -EINVAL;
-		brcmf_fws_unlock(fws);
-		goto fail;
-	}
-	brcmf_fws_unlock(fws);
-	return ret;
-
-fail:
-	fws->stats.if_update_failed++;
-	return ret;
-}
-
-static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
-				      u8 *data)
-{
-	struct brcmf_fws_mac_descriptor *entry;
-
-	entry = &fws->desc.nodes[data[1] & 0x1F];
-	if (!entry->occupied) {
-		if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
-			fws->stats.credit_request_failed++;
-		else
-			fws->stats.packet_request_failed++;
-		return -ESRCH;
-	}
-
-	brcmf_dbg(TRACE, "%s (%d): %s cnt %d bmp %d\n",
-		  brcmf_fws_get_tlv_name(type), type, entry->name,
-		  data[0], data[2]);
-	brcmf_fws_lock(fws);
-	if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
-		entry->requested_credit = data[0];
-	else
-		entry->requested_packet = data[0];
-
-	entry->ac_bitmap = data[2];
-	brcmf_fws_unlock(fws);
-	return BRCMF_FWS_RET_OK_SCHEDULE;
-}
-
-static void
-brcmf_fws_macdesc_use_req_credit(struct brcmf_fws_mac_descriptor *entry,
-				 struct sk_buff *skb)
-{
-	if (entry->requested_credit > 0) {
-		entry->requested_credit--;
-		brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
-		brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 1);
-		if (entry->state != BRCMF_FWS_STATE_CLOSE)
-			brcmf_err("requested credit set while mac not closed!\n");
-	} else if (entry->requested_packet > 0) {
-		entry->requested_packet--;
-		brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
-		brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 0);
-		if (entry->state != BRCMF_FWS_STATE_CLOSE)
-			brcmf_err("requested packet set while mac not closed!\n");
-	} else {
-		brcmf_skb_if_flags_set_field(skb, REQUESTED, 0);
-		brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 0);
-	}
-}
-
-static void brcmf_fws_macdesc_return_req_credit(struct sk_buff *skb)
-{
-	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
-
-	if ((brcmf_skb_if_flags_get_field(skb, REQ_CREDIT)) &&
-	    (entry->state == BRCMF_FWS_STATE_CLOSE))
-		entry->requested_credit++;
-}
-
-static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
-				     u8 fifo, u8 credits)
-{
-	int lender_ac;
-	int *borrowed;
-	int *fifo_credit;
-
-	if (!credits)
-		return;
-
-	fws->fifo_credit_map |= 1 << fifo;
-
-	if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
-	    (fws->credits_borrowed[0])) {
-		for (lender_ac = BRCMF_FWS_FIFO_AC_VO; lender_ac >= 0;
-		     lender_ac--) {
-			borrowed = &fws->credits_borrowed[lender_ac];
-			if (*borrowed) {
-				fws->fifo_credit_map |= (1 << lender_ac);
-				fifo_credit = &fws->fifo_credit[lender_ac];
-				if (*borrowed >= credits) {
-					*borrowed -= credits;
-					*fifo_credit += credits;
-					return;
-				} else {
-					credits -= *borrowed;
-					*fifo_credit += *borrowed;
-					*borrowed = 0;
-				}
-			}
-		}
-	}
-
-	fws->fifo_credit[fifo] += credits;
-}
-
-static void brcmf_fws_schedule_deq(struct brcmf_fws_info *fws)
-{
-	/* only schedule dequeue when there are credits for delayed traffic */
-	if ((fws->fifo_credit_map & fws->fifo_delay_map) ||
-	    (!brcmf_fws_fc_active(fws) && fws->fifo_delay_map))
-		queue_work(fws->fws_wq, &fws->fws_dequeue_work);
-}
-
-static int brcmf_fws_enq(struct brcmf_fws_info *fws,
-			 enum brcmf_fws_skb_state state, int fifo,
-			 struct sk_buff *p)
-{
-	int prec = 2 * fifo;
-	u32 *qfull_stat = &fws->stats.delayq_full_error;
-	struct brcmf_fws_mac_descriptor *entry;
-	struct pktq *pq;
-	struct sk_buff_head *queue;
-	struct sk_buff *p_head;
-	struct sk_buff *p_tail;
-	u32 fr_new;
-	u32 fr_compare;
-
-	entry = brcmf_skbcb(p)->mac;
-	if (entry == NULL) {
-		brcmf_err("no mac descriptor found for skb %p\n", p);
-		return -ENOENT;
-	}
-
-	brcmf_dbg(DATA, "enter: fifo %d skb %p\n", fifo, p);
-	if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
-		prec += 1;
-		qfull_stat = &fws->stats.supprq_full_error;
-
-		/* Fix out of order delivery of frames. Dont assume frame    */
-		/* can be inserted at the end, but look for correct position */
-		pq = &entry->psq;
-		if (pktq_full(pq) || pktq_pfull(pq, prec)) {
-			*qfull_stat += 1;
-			return -ENFILE;
-		}
-		queue = &pq->q[prec].skblist;
-
-		p_head = skb_peek(queue);
-		p_tail = skb_peek_tail(queue);
-		fr_new = brcmf_skb_htod_tag_get_field(p, FREERUN);
-
-		while (p_head != p_tail) {
-			fr_compare = brcmf_skb_htod_tag_get_field(p_tail,
-								  FREERUN);
-			/* be sure to handle wrap of 256 */
-			if (((fr_new > fr_compare) &&
-			     ((fr_new - fr_compare) < 128)) ||
-			    ((fr_new < fr_compare) &&
-			     ((fr_compare - fr_new) > 128)))
-				break;
-			p_tail = skb_queue_prev(queue, p_tail);
-		}
-		/* Position found. Determine what to do */
-		if (p_tail == NULL) {
-			/* empty list */
-			__skb_queue_tail(queue, p);
-		} else {
-			fr_compare = brcmf_skb_htod_tag_get_field(p_tail,
-								  FREERUN);
-			if (((fr_new > fr_compare) &&
-			     ((fr_new - fr_compare) < 128)) ||
-			    ((fr_new < fr_compare) &&
-			     ((fr_compare - fr_new) > 128))) {
-				/* After tail */
-				__skb_queue_after(queue, p_tail, p);
-			} else {
-				/* Before tail */
-				__skb_insert(p, p_tail->prev, p_tail, queue);
-			}
-		}
-
-		/* Complete the counters and statistics */
-		pq->len++;
-		if (pq->hi_prec < prec)
-			pq->hi_prec = (u8) prec;
-	} else if (brcmu_pktq_penq(&entry->psq, prec, p) == NULL) {
-		*qfull_stat += 1;
-		return -ENFILE;
-	}
-
-	/* increment total enqueued packet count */
-	fws->fifo_delay_map |= 1 << fifo;
-	fws->fifo_enqpkt[fifo]++;
-
-	/* update the sk_buff state */
-	brcmf_skbcb(p)->state = state;
-
-	/*
-	 * A packet has been pushed so update traffic
-	 * availability bitmap, if applicable
-	 */
-	brcmf_fws_tim_update(fws, entry, fifo, true);
-	brcmf_fws_flow_control_check(fws, &entry->psq,
-				     brcmf_skb_if_flags_get_field(p, INDEX));
-	return 0;
-}
-
-static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
-{
-	struct brcmf_fws_mac_descriptor *table;
-	struct brcmf_fws_mac_descriptor *entry;
-	struct sk_buff *p;
-	int num_nodes;
-	int node_pos;
-	int prec_out;
-	int pmsk;
-	int i;
-
-	table = (struct brcmf_fws_mac_descriptor *)&fws->desc;
-	num_nodes = sizeof(fws->desc) / sizeof(struct brcmf_fws_mac_descriptor);
-	node_pos = fws->deq_node_pos[fifo];
-
-	for (i = 0; i < num_nodes; i++) {
-		entry = &table[(node_pos + i) % num_nodes];
-		if (!entry->occupied ||
-		    brcmf_fws_macdesc_closed(fws, entry, fifo))
-			continue;
-
-		if (entry->suppressed)
-			pmsk = 2;
-		else
-			pmsk = 3;
-		p = brcmu_pktq_mdeq(&entry->psq, pmsk << (fifo * 2), &prec_out);
-		if (p == NULL) {
-			if (entry->suppressed) {
-				if (entry->suppr_transit_count)
-					continue;
-				entry->suppressed = false;
-				p = brcmu_pktq_mdeq(&entry->psq,
-						    1 << (fifo * 2), &prec_out);
-			}
-		}
-		if  (p == NULL)
-			continue;
-
-		brcmf_fws_macdesc_use_req_credit(entry, p);
-
-		/* move dequeue position to ensure fair round-robin */
-		fws->deq_node_pos[fifo] = (node_pos + i + 1) % num_nodes;
-		brcmf_fws_flow_control_check(fws, &entry->psq,
-					     brcmf_skb_if_flags_get_field(p,
-									  INDEX)
-					     );
-		/*
-		 * A packet has been picked up, update traffic
-		 * availability bitmap, if applicable
-		 */
-		brcmf_fws_tim_update(fws, entry, fifo, false);
-
-		/*
-		 * decrement total enqueued fifo packets and
-		 * clear delay bitmap if done.
-		 */
-		fws->fifo_enqpkt[fifo]--;
-		if (fws->fifo_enqpkt[fifo] == 0)
-			fws->fifo_delay_map &= ~(1 << fifo);
-		goto done;
-	}
-	p = NULL;
-done:
-	brcmf_dbg(DATA, "exit: fifo %d skb %p\n", fifo, p);
-	return p;
-}
-
-static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
-					 struct sk_buff *skb,
-					 u32 genbit, u16 seq)
-{
-	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
-	u32 hslot;
-	int ret;
-
-	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-
-	/* this packet was suppressed */
-	if (!entry->suppressed) {
-		entry->suppressed = true;
-		entry->suppr_transit_count = entry->transit_count;
-		brcmf_dbg(DATA, "suppress %s: transit %d\n",
-			  entry->name, entry->transit_count);
-	}
-
-	entry->generation = genbit;
-
-	brcmf_skb_htod_tag_set_field(skb, GENERATION, genbit);
-	brcmf_skbcb(skb)->htod_seq = seq;
-	if (brcmf_skb_htod_seq_get_field(skb, FROMFW)) {
-		brcmf_skb_htod_seq_set_field(skb, FROMDRV, 1);
-		brcmf_skb_htod_seq_set_field(skb, FROMFW, 0);
-	} else {
-		brcmf_skb_htod_seq_set_field(skb, FROMDRV, 0);
-	}
-	ret = brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_SUPPRESSED, fifo, skb);
-
-	if (ret != 0) {
-		/* suppress q is full drop this packet */
-		brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb, true);
-	} else {
-		/* Mark suppressed to avoid a double free during wlfc cleanup */
-		brcmf_fws_hanger_mark_suppressed(&fws->hanger, hslot);
-	}
-
-	return ret;
-}
-
-static int
-brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
-		      u32 genbit, u16 seq)
-{
-	u32 fifo;
-	int ret;
-	bool remove_from_hanger = true;
-	struct sk_buff *skb;
-	struct brcmf_skbuff_cb *skcb;
-	struct brcmf_fws_mac_descriptor *entry = NULL;
-	struct brcmf_if *ifp;
-
-	brcmf_dbg(DATA, "flags %d\n", flags);
-
-	if (flags == BRCMF_FWS_TXSTATUS_DISCARD)
-		fws->stats.txs_discard++;
-	else if (flags == BRCMF_FWS_TXSTATUS_CORE_SUPPRESS) {
-		fws->stats.txs_supp_core++;
-		remove_from_hanger = false;
-	} else if (flags == BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS) {
-		fws->stats.txs_supp_ps++;
-		remove_from_hanger = false;
-	} else if (flags == BRCMF_FWS_TXSTATUS_FW_TOSSED)
-		fws->stats.txs_tossed++;
-	else if (flags == BRCMF_FWS_TXSTATUS_HOST_TOSSED)
-		fws->stats.txs_host_tossed++;
-	else
-		brcmf_err("unexpected txstatus\n");
-
-	ret = brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb,
-				      remove_from_hanger);
-	if (ret != 0) {
-		brcmf_err("no packet in hanger slot: hslot=%d\n", hslot);
-		return ret;
-	}
-
-	skcb = brcmf_skbcb(skb);
-	entry = skcb->mac;
-	if (WARN_ON(!entry)) {
-		brcmu_pkt_buf_free_skb(skb);
-		return -EINVAL;
-	}
-	entry->transit_count--;
-	if (entry->suppressed && entry->suppr_transit_count)
-		entry->suppr_transit_count--;
-
-	brcmf_dbg(DATA, "%s flags %d htod %X seq %X\n", entry->name, flags,
-		  skcb->htod, seq);
-
-	/* pick up the implicit credit from this packet */
-	fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
-	if ((fws->fcmode == BRCMF_FWS_FCMODE_IMPLIED_CREDIT) ||
-	    (brcmf_skb_if_flags_get_field(skb, REQ_CREDIT)) ||
-	    (flags == BRCMF_FWS_TXSTATUS_HOST_TOSSED)) {
-		brcmf_fws_return_credits(fws, fifo, 1);
-		brcmf_fws_schedule_deq(fws);
-	}
-	brcmf_fws_macdesc_return_req_credit(skb);
-
-	ret = brcmf_proto_hdrpull(fws->drvr, false, skb, &ifp);
-	if (ret) {
-		brcmu_pkt_buf_free_skb(skb);
-		return -EINVAL;
-	}
-	if (!remove_from_hanger)
-		ret = brcmf_fws_txstatus_suppressed(fws, fifo, skb,
-						    genbit, seq);
-	if (remove_from_hanger || ret)
-		brcmf_txfinalize(ifp, skb, true);
-
-	return 0;
-}
-
-static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws,
-					     u8 *data)
-{
-	int i;
-
-	if (fws->fcmode != BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) {
-		brcmf_dbg(INFO, "ignored\n");
-		return BRCMF_FWS_RET_OK_NOSCHEDULE;
-	}
-
-	brcmf_dbg(DATA, "enter: data %pM\n", data);
-	brcmf_fws_lock(fws);
-	for (i = 0; i < BRCMF_FWS_FIFO_COUNT; i++)
-		brcmf_fws_return_credits(fws, i, data[i]);
-
-	brcmf_dbg(DATA, "map: credit %x delay %x\n", fws->fifo_credit_map,
-		  fws->fifo_delay_map);
-	brcmf_fws_unlock(fws);
-	return BRCMF_FWS_RET_OK_SCHEDULE;
-}
-
-static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
-{
-	__le32 status_le;
-	__le16 seq_le;
-	u32 status;
-	u32 hslot;
-	u32 genbit;
-	u8 flags;
-	u16 seq;
-
-	fws->stats.txs_indicate++;
-	memcpy(&status_le, data, sizeof(status_le));
-	status = le32_to_cpu(status_le);
-	flags = brcmf_txstatus_get_field(status, FLAGS);
-	hslot = brcmf_txstatus_get_field(status, HSLOT);
-	genbit = brcmf_txstatus_get_field(status, GENERATION);
-	if (BRCMF_FWS_MODE_GET_REUSESEQ(fws->mode)) {
-		memcpy(&seq_le, &data[BRCMF_FWS_TYPE_PKTTAG_LEN],
-		       sizeof(seq_le));
-		seq = le16_to_cpu(seq_le);
-	} else {
-		seq = 0;
-	}
-
-	brcmf_fws_lock(fws);
-	brcmf_fws_txs_process(fws, flags, hslot, genbit, seq);
-	brcmf_fws_unlock(fws);
-	return BRCMF_FWS_RET_OK_NOSCHEDULE;
-}
-
-static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
-{
-	__le32 timestamp;
-
-	memcpy(&timestamp, &data[2], sizeof(timestamp));
-	brcmf_dbg(CTL, "received: seq %d, timestamp %d\n", data[1],
-		  le32_to_cpu(timestamp));
-	return 0;
-}
-
-static int brcmf_fws_notify_credit_map(struct brcmf_if *ifp,
-				       const struct brcmf_event_msg *e,
-				       void *data)
-{
-	struct brcmf_fws_info *fws = ifp->drvr->fws;
-	int i;
-	u8 *credits = data;
-
-	if (e->datalen < BRCMF_FWS_FIFO_COUNT) {
-		brcmf_err("event payload too small (%d)\n", e->datalen);
-		return -EINVAL;
-	}
-	if (fws->creditmap_received)
-		return 0;
-
-	fws->creditmap_received = true;
-
-	brcmf_dbg(TRACE, "enter: credits %pM\n", credits);
-	brcmf_fws_lock(fws);
-	for (i = 0; i < ARRAY_SIZE(fws->fifo_credit); i++) {
-		if (*credits)
-			fws->fifo_credit_map |= 1 << i;
-		else
-			fws->fifo_credit_map &= ~(1 << i);
-		fws->fifo_credit[i] = *credits++;
-	}
-	brcmf_fws_schedule_deq(fws);
-	brcmf_fws_unlock(fws);
-	return 0;
-}
-
-static int brcmf_fws_notify_bcmc_credit_support(struct brcmf_if *ifp,
-						const struct brcmf_event_msg *e,
-						void *data)
-{
-	struct brcmf_fws_info *fws = ifp->drvr->fws;
-
-	brcmf_fws_lock(fws);
-	if (fws)
-		fws->bcmc_credit_check = true;
-	brcmf_fws_unlock(fws);
-	return 0;
-}
-
-void brcmf_fws_hdrpull(struct brcmf_if *ifp, s16 siglen, struct sk_buff *skb)
-{
-	struct brcmf_skb_reorder_data *rd;
-	struct brcmf_fws_info *fws = ifp->drvr->fws;
-	u8 *signal_data;
-	s16 data_len;
-	u8 type;
-	u8 len;
-	u8 *data;
-	s32 status;
-	s32 err;
-
-	brcmf_dbg(HDRS, "enter: ifidx %d, skblen %u, sig %d\n",
-		  ifp->ifidx, skb->len, siglen);
-
-	WARN_ON(siglen > skb->len);
-
-	if (!siglen)
-		return;
-	/* if flow control disabled, skip to packet data and leave */
-	if ((!fws) || (!fws->fw_signals)) {
-		skb_pull(skb, siglen);
-		return;
-	}
-
-	fws->stats.header_pulls++;
-	data_len = siglen;
-	signal_data = skb->data;
-
-	status = BRCMF_FWS_RET_OK_NOSCHEDULE;
-	while (data_len > 0) {
-		/* extract tlv info */
-		type = signal_data[0];
-
-		/* FILLER type is actually not a TLV, but
-		 * a single byte that can be skipped.
-		 */
-		if (type == BRCMF_FWS_TYPE_FILLER) {
-			signal_data += 1;
-			data_len -= 1;
-			continue;
-		}
-		len = signal_data[1];
-		data = signal_data + 2;
-
-		brcmf_dbg(HDRS, "tlv type=%s (%d), len=%d (%d)\n",
-			  brcmf_fws_get_tlv_name(type), type, len,
-			  brcmf_fws_get_tlv_len(fws, type));
-
-		/* abort parsing when length invalid */
-		if (data_len < len + 2)
-			break;
-
-		if (len < brcmf_fws_get_tlv_len(fws, type))
-			break;
-
-		err = BRCMF_FWS_RET_OK_NOSCHEDULE;
-		switch (type) {
-		case BRCMF_FWS_TYPE_COMP_TXSTATUS:
-			break;
-		case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS:
-			rd = (struct brcmf_skb_reorder_data *)skb->cb;
-			rd->reorder = data;
-			break;
-		case BRCMF_FWS_TYPE_MACDESC_ADD:
-		case BRCMF_FWS_TYPE_MACDESC_DEL:
-			brcmf_fws_macdesc_indicate(fws, type, data);
-			break;
-		case BRCMF_FWS_TYPE_MAC_OPEN:
-		case BRCMF_FWS_TYPE_MAC_CLOSE:
-			err = brcmf_fws_macdesc_state_indicate(fws, type, data);
-			break;
-		case BRCMF_FWS_TYPE_INTERFACE_OPEN:
-		case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
-			err = brcmf_fws_interface_state_indicate(fws, type,
-								 data);
-			break;
-		case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT:
-		case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET:
-			err = brcmf_fws_request_indicate(fws, type, data);
-			break;
-		case BRCMF_FWS_TYPE_TXSTATUS:
-			brcmf_fws_txstatus_indicate(fws, data);
-			break;
-		case BRCMF_FWS_TYPE_FIFO_CREDITBACK:
-			err = brcmf_fws_fifocreditback_indicate(fws, data);
-			break;
-		case BRCMF_FWS_TYPE_RSSI:
-			brcmf_fws_rssi_indicate(fws, *data);
-			break;
-		case BRCMF_FWS_TYPE_TRANS_ID:
-			brcmf_fws_dbg_seqnum_check(fws, data);
-			break;
-		case BRCMF_FWS_TYPE_PKTTAG:
-		case BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP:
-		default:
-			fws->stats.tlv_invalid_type++;
-			break;
-		}
-		if (err == BRCMF_FWS_RET_OK_SCHEDULE)
-			status = BRCMF_FWS_RET_OK_SCHEDULE;
-		signal_data += len + 2;
-		data_len -= len + 2;
-	}
-
-	if (data_len != 0)
-		fws->stats.tlv_parse_failed++;
-
-	if (status == BRCMF_FWS_RET_OK_SCHEDULE)
-		brcmf_fws_schedule_deq(fws);
-
-	/* signalling processing result does
-	 * not affect the actual ethernet packet.
-	 */
-	skb_pull(skb, siglen);
-
-	/* this may be a signal-only packet
-	 */
-	if (skb->len == 0)
-		fws->stats.header_only_pkt++;
-}
-
-static u8 brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
-				   struct sk_buff *p)
-{
-	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
-	struct brcmf_fws_mac_descriptor *entry = skcb->mac;
-	u8 flags;
-
-	if (skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED)
-		brcmf_skb_htod_tag_set_field(p, GENERATION, entry->generation);
-	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
-	if (brcmf_skb_if_flags_get_field(p, REQUESTED)) {
-		/*
-		 * Indicate that this packet is being sent in response to an
-		 * explicit request from the firmware side.
-		 */
-		flags |= BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED;
-	}
-	brcmf_skb_htod_tag_set_field(p, FLAGS, flags);
-	return brcmf_fws_hdrpush(fws, p);
-}
-
-static void brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
-				   struct sk_buff *skb, int fifo)
-{
-	struct brcmf_fws_mac_descriptor *entry;
-	struct sk_buff *pktout;
-	int qidx, hslot;
-	int rc = 0;
-
-	entry = brcmf_skbcb(skb)->mac;
-	if (entry->occupied) {
-		qidx = 2 * fifo;
-		if (brcmf_skbcb(skb)->state == BRCMF_FWS_SKBSTATE_SUPPRESSED)
-			qidx++;
-
-		pktout = brcmu_pktq_penq_head(&entry->psq, qidx, skb);
-		if (pktout == NULL) {
-			brcmf_err("%s queue %d full\n", entry->name, qidx);
-			rc = -ENOSPC;
-		}
-	} else {
-		brcmf_err("%s entry removed\n", entry->name);
-		rc = -ENOENT;
-	}
-
-	if (rc) {
-		fws->stats.rollback_failed++;
-		hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-		brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED,
-				      hslot, 0, 0);
-	} else {
-		fws->stats.rollback_success++;
-		brcmf_fws_return_credits(fws, fifo, 1);
-		brcmf_fws_macdesc_return_req_credit(skb);
-	}
-}
-
-static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
-{
-	int lender_ac;
-
-	if (time_after(fws->borrow_defer_timestamp, jiffies)) {
-		fws->fifo_credit_map &= ~(1 << BRCMF_FWS_FIFO_AC_BE);
-		return -ENAVAIL;
-	}
-
-	for (lender_ac = 0; lender_ac <= BRCMF_FWS_FIFO_AC_VO; lender_ac++) {
-		if (fws->fifo_credit[lender_ac]) {
-			fws->credits_borrowed[lender_ac]++;
-			fws->fifo_credit[lender_ac]--;
-			if (fws->fifo_credit[lender_ac] == 0)
-				fws->fifo_credit_map &= ~(1 << lender_ac);
-			fws->fifo_credit_map |= (1 << BRCMF_FWS_FIFO_AC_BE);
-			brcmf_dbg(DATA, "borrow credit from: %d\n", lender_ac);
-			return 0;
-		}
-	}
-	fws->fifo_credit_map &= ~(1 << BRCMF_FWS_FIFO_AC_BE);
-	return -ENAVAIL;
-}
-
-static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
-				struct sk_buff *skb)
-{
-	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(skb);
-	struct brcmf_fws_mac_descriptor *entry;
-	int rc;
-	u8 ifidx;
-	u8 data_offset;
-
-	entry = skcb->mac;
-	if (IS_ERR(entry))
-		return PTR_ERR(entry);
-
-	data_offset = brcmf_fws_precommit_skb(fws, fifo, skb);
-	entry->transit_count++;
-	if (entry->suppressed)
-		entry->suppr_transit_count++;
-	ifidx = brcmf_skb_if_flags_get_field(skb, INDEX);
-	brcmf_fws_unlock(fws);
-	rc = brcmf_proto_txdata(fws->drvr, ifidx, data_offset, skb);
-	brcmf_fws_lock(fws);
-	brcmf_dbg(DATA, "%s flags %X htod %X bus_tx %d\n", entry->name,
-		  skcb->if_flags, skcb->htod, rc);
-	if (rc < 0) {
-		entry->transit_count--;
-		if (entry->suppressed)
-			entry->suppr_transit_count--;
-		(void)brcmf_proto_hdrpull(fws->drvr, false, skb, NULL);
-		goto rollback;
-	}
-
-	fws->stats.pkt2bus++;
-	fws->stats.send_pkts[fifo]++;
-	if (brcmf_skb_if_flags_get_field(skb, REQUESTED))
-		fws->stats.requested_sent[fifo]++;
-
-	return rc;
-
-rollback:
-	brcmf_fws_rollback_toq(fws, skb, fifo);
-	return rc;
-}
-
-static int brcmf_fws_assign_htod(struct brcmf_fws_info *fws, struct sk_buff *p,
-				  int fifo)
-{
-	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
-	int rc, hslot;
-
-	skcb->htod = 0;
-	skcb->htod_seq = 0;
-	hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
-	brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
-	brcmf_skb_htod_tag_set_field(p, FREERUN, skcb->mac->seq[fifo]);
-	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
-	rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
-	if (!rc)
-		skcb->mac->seq[fifo]++;
-	else
-		fws->stats.generic_error++;
-	return rc;
-}
-
-int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
-{
-	struct brcmf_pub *drvr = ifp->drvr;
-	struct brcmf_fws_info *fws = drvr->fws;
-	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(skb);
-	struct ethhdr *eh = (struct ethhdr *)(skb->data);
-	int fifo = BRCMF_FWS_FIFO_BCMC;
-	bool multicast = is_multicast_ether_addr(eh->h_dest);
-	int rc = 0;
-
-	brcmf_dbg(DATA, "tx proto=0x%X\n", ntohs(eh->h_proto));
-	/* determine the priority */
-	if (!skb->priority)
-		skb->priority = cfg80211_classify8021d(skb, NULL);
-
-	drvr->tx_multicast += !!multicast;
-
-	if (fws->avoid_queueing) {
-		rc = brcmf_proto_txdata(drvr, ifp->ifidx, 0, skb);
-		if (rc < 0)
-			brcmf_txfinalize(ifp, skb, false);
-		return rc;
-	}
-
-	/* set control buffer information */
-	skcb->if_flags = 0;
-	skcb->state = BRCMF_FWS_SKBSTATE_NEW;
-	brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx);
-	if (!multicast)
-		fifo = brcmf_fws_prio2fifo[skb->priority];
-
-	brcmf_fws_lock(fws);
-	if (fifo != BRCMF_FWS_FIFO_AC_BE && fifo < BRCMF_FWS_FIFO_BCMC)
-		fws->borrow_defer_timestamp = jiffies +
-					      BRCMF_FWS_BORROW_DEFER_PERIOD;
-
-	skcb->mac = brcmf_fws_macdesc_find(fws, ifp, eh->h_dest);
-	brcmf_dbg(DATA, "%s mac %pM multi %d fifo %d\n", skcb->mac->name,
-		  eh->h_dest, multicast, fifo);
-	if (!brcmf_fws_assign_htod(fws, skb, fifo)) {
-		brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
-		brcmf_fws_schedule_deq(fws);
-	} else {
-		brcmf_err("drop skb: no hanger slot\n");
-		brcmf_txfinalize(ifp, skb, false);
-		rc = -ENOMEM;
-	}
-	brcmf_fws_unlock(fws);
-
-	return rc;
-}
-
-void brcmf_fws_reset_interface(struct brcmf_if *ifp)
-{
-	struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc;
-
-	brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
-	if (!entry)
-		return;
-
-	brcmf_fws_macdesc_init(entry, ifp->mac_addr, ifp->ifidx);
-}
-
-void brcmf_fws_add_interface(struct brcmf_if *ifp)
-{
-	struct brcmf_fws_info *fws = ifp->drvr->fws;
-	struct brcmf_fws_mac_descriptor *entry;
-
-	if (!ifp->ndev)
-		return;
-
-	entry = &fws->desc.iface[ifp->ifidx];
-	ifp->fws_desc = entry;
-	brcmf_fws_macdesc_init(entry, ifp->mac_addr, ifp->ifidx);
-	brcmf_fws_macdesc_set_name(fws, entry);
-	brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
-			BRCMF_FWS_PSQ_LEN);
-	brcmf_dbg(TRACE, "added %s\n", entry->name);
-}
-
-void brcmf_fws_del_interface(struct brcmf_if *ifp)
-{
-	struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc;
-
-	if (!entry)
-		return;
-
-	brcmf_fws_lock(ifp->drvr->fws);
-	ifp->fws_desc = NULL;
-	brcmf_dbg(TRACE, "deleting %s\n", entry->name);
-	brcmf_fws_macdesc_deinit(entry);
-	brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx);
-	brcmf_fws_unlock(ifp->drvr->fws);
-}
-
-static void brcmf_fws_dequeue_worker(struct work_struct *worker)
-{
-	struct brcmf_fws_info *fws;
-	struct brcmf_pub *drvr;
-	struct sk_buff *skb;
-	int fifo;
-	u32 hslot;
-	u32 ifidx;
-	int ret;
-
-	fws = container_of(worker, struct brcmf_fws_info, fws_dequeue_work);
-	drvr = fws->drvr;
-
-	brcmf_fws_lock(fws);
-	for (fifo = BRCMF_FWS_FIFO_BCMC; fifo >= 0 && !fws->bus_flow_blocked;
-	     fifo--) {
-		if (!brcmf_fws_fc_active(fws)) {
-			while ((skb = brcmf_fws_deq(fws, fifo)) != NULL) {
-				hslot = brcmf_skb_htod_tag_get_field(skb,
-								     HSLOT);
-				brcmf_fws_hanger_poppkt(&fws->hanger, hslot,
-							&skb, true);
-				ifidx = brcmf_skb_if_flags_get_field(skb,
-								     INDEX);
-				/* Use proto layer to send data frame */
-				brcmf_fws_unlock(fws);
-				ret = brcmf_proto_txdata(drvr, ifidx, 0, skb);
-				brcmf_fws_lock(fws);
-				if (ret < 0)
-					brcmf_txfinalize(brcmf_get_ifp(drvr,
-								       ifidx),
-							 skb, false);
-				if (fws->bus_flow_blocked)
-					break;
-			}
-			continue;
-		}
-		while ((fws->fifo_credit[fifo]) || ((!fws->bcmc_credit_check) &&
-		       (fifo == BRCMF_FWS_FIFO_BCMC))) {
-			skb = brcmf_fws_deq(fws, fifo);
-			if (!skb)
-				break;
-			fws->fifo_credit[fifo]--;
-			if (brcmf_fws_commit_skb(fws, fifo, skb))
-				break;
-			if (fws->bus_flow_blocked)
-				break;
-		}
-		if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
-		    (fws->fifo_credit[fifo] == 0) &&
-		    (!fws->bus_flow_blocked)) {
-			while (brcmf_fws_borrow_credit(fws) == 0) {
-				skb = brcmf_fws_deq(fws, fifo);
-				if (!skb) {
-					brcmf_fws_return_credits(fws, fifo, 1);
-					break;
-				}
-				if (brcmf_fws_commit_skb(fws, fifo, skb))
-					break;
-				if (fws->bus_flow_blocked)
-					break;
-			}
-		}
-	}
-	brcmf_fws_unlock(fws);
-}
-
-#ifdef DEBUG
-static int brcmf_debugfs_fws_stats_read(struct seq_file *seq, void *data)
-{
-	struct brcmf_bus *bus_if = dev_get_drvdata(seq->private);
-	struct brcmf_fws_stats *fwstats = &bus_if->drvr->fws->stats;
-
-	seq_printf(seq,
-		   "header_pulls:      %u\n"
-		   "header_only_pkt:   %u\n"
-		   "tlv_parse_failed:  %u\n"
-		   "tlv_invalid_type:  %u\n"
-		   "mac_update_fails:  %u\n"
-		   "ps_update_fails:   %u\n"
-		   "if_update_fails:   %u\n"
-		   "pkt2bus:           %u\n"
-		   "generic_error:     %u\n"
-		   "rollback_success:  %u\n"
-		   "rollback_failed:   %u\n"
-		   "delayq_full:       %u\n"
-		   "supprq_full:       %u\n"
-		   "txs_indicate:      %u\n"
-		   "txs_discard:       %u\n"
-		   "txs_suppr_core:    %u\n"
-		   "txs_suppr_ps:      %u\n"
-		   "txs_tossed:        %u\n"
-		   "txs_host_tossed:   %u\n"
-		   "bus_flow_block:    %u\n"
-		   "fws_flow_block:    %u\n"
-		   "send_pkts:         BK:%u BE:%u VO:%u VI:%u BCMC:%u\n"
-		   "requested_sent:    BK:%u BE:%u VO:%u VI:%u BCMC:%u\n",
-		   fwstats->header_pulls,
-		   fwstats->header_only_pkt,
-		   fwstats->tlv_parse_failed,
-		   fwstats->tlv_invalid_type,
-		   fwstats->mac_update_failed,
-		   fwstats->mac_ps_update_failed,
-		   fwstats->if_update_failed,
-		   fwstats->pkt2bus,
-		   fwstats->generic_error,
-		   fwstats->rollback_success,
-		   fwstats->rollback_failed,
-		   fwstats->delayq_full_error,
-		   fwstats->supprq_full_error,
-		   fwstats->txs_indicate,
-		   fwstats->txs_discard,
-		   fwstats->txs_supp_core,
-		   fwstats->txs_supp_ps,
-		   fwstats->txs_tossed,
-		   fwstats->txs_host_tossed,
-		   fwstats->bus_flow_block,
-		   fwstats->fws_flow_block,
-		   fwstats->send_pkts[0], fwstats->send_pkts[1],
-		   fwstats->send_pkts[2], fwstats->send_pkts[3],
-		   fwstats->send_pkts[4],
-		   fwstats->requested_sent[0],
-		   fwstats->requested_sent[1],
-		   fwstats->requested_sent[2],
-		   fwstats->requested_sent[3],
-		   fwstats->requested_sent[4]);
-
-	return 0;
-}
-#else
-static int brcmf_debugfs_fws_stats_read(struct seq_file *seq, void *data)
-{
-	return 0;
-}
-#endif
-
-int brcmf_fws_init(struct brcmf_pub *drvr)
-{
-	struct brcmf_fws_info *fws;
-	struct brcmf_if *ifp;
-	u32 tlv = BRCMF_FWS_FLAGS_RSSI_SIGNALS;
-	int rc;
-	u32 mode;
-
-	drvr->fws = kzalloc(sizeof(*(drvr->fws)), GFP_KERNEL);
-	if (!drvr->fws) {
-		rc = -ENOMEM;
-		goto fail;
-	}
-
-	fws = drvr->fws;
-
-	spin_lock_init(&fws->spinlock);
-
-	/* set linkage back */
-	fws->drvr = drvr;
-	fws->fcmode = fcmode;
-
-	if ((drvr->bus_if->always_use_fws_queue == false) &&
-	    (fcmode == BRCMF_FWS_FCMODE_NONE)) {
-		fws->avoid_queueing = true;
-		brcmf_dbg(INFO, "FWS queueing will be avoided\n");
-		return 0;
-	}
-
-	fws->fws_wq = create_singlethread_workqueue("brcmf_fws_wq");
-	if (fws->fws_wq == NULL) {
-		brcmf_err("workqueue creation failed\n");
-		rc = -EBADF;
-		goto fail;
-	}
-	INIT_WORK(&fws->fws_dequeue_work, brcmf_fws_dequeue_worker);
-
-	/* enable firmware signalling if fcmode active */
-	if (fws->fcmode != BRCMF_FWS_FCMODE_NONE)
-		tlv |= BRCMF_FWS_FLAGS_XONXOFF_SIGNALS |
-		       BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS |
-		       BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE |
-		       BRCMF_FWS_FLAGS_HOST_RXREORDER_ACTIVE;
-
-	rc = brcmf_fweh_register(drvr, BRCMF_E_FIFO_CREDIT_MAP,
-				 brcmf_fws_notify_credit_map);
-	if (rc < 0) {
-		brcmf_err("register credit map handler failed\n");
-		goto fail;
-	}
-	rc = brcmf_fweh_register(drvr, BRCMF_E_BCMC_CREDIT_SUPPORT,
-				 brcmf_fws_notify_bcmc_credit_support);
-	if (rc < 0) {
-		brcmf_err("register bcmc credit handler failed\n");
-		brcmf_fweh_unregister(drvr, BRCMF_E_FIFO_CREDIT_MAP);
-		goto fail;
-	}
-
-	/* Setting the iovar may fail if feature is unsupported
-	 * so leave the rc as is so driver initialization can
-	 * continue. Set mode back to none indicating not enabled.
-	 */
-	fws->fw_signals = true;
-	ifp = brcmf_get_ifp(drvr, 0);
-	if (brcmf_fil_iovar_int_set(ifp, "tlv", tlv)) {
-		brcmf_err("failed to set bdcv2 tlv signaling\n");
-		fws->fcmode = BRCMF_FWS_FCMODE_NONE;
-		fws->fw_signals = false;
-	}
-
-	if (brcmf_fil_iovar_int_set(ifp, "ampdu_hostreorder", 1))
-		brcmf_dbg(INFO, "enabling AMPDU host-reorder failed\n");
-
-	/* Enable seq number reuse, if supported */
-	if (brcmf_fil_iovar_int_get(ifp, "wlfc_mode", &mode) == 0) {
-		if (BRCMF_FWS_MODE_GET_REUSESEQ(mode)) {
-			mode = 0;
-			BRCMF_FWS_MODE_SET_REUSESEQ(mode, 1);
-			if (brcmf_fil_iovar_int_set(ifp,
-						    "wlfc_mode", mode) == 0) {
-				BRCMF_FWS_MODE_SET_REUSESEQ(fws->mode, 1);
-			}
-		}
-	}
-
-	brcmf_fws_hanger_init(&fws->hanger);
-	brcmf_fws_macdesc_init(&fws->desc.other, NULL, 0);
-	brcmf_fws_macdesc_set_name(fws, &fws->desc.other);
-	brcmu_pktq_init(&fws->desc.other.psq, BRCMF_FWS_PSQ_PREC_COUNT,
-			BRCMF_FWS_PSQ_LEN);
-
-	/* create debugfs file for statistics */
-	brcmf_debugfs_add_entry(drvr, "fws_stats",
-				brcmf_debugfs_fws_stats_read);
-
-	brcmf_dbg(INFO, "%s bdcv2 tlv signaling [%x]\n",
-		  fws->fw_signals ? "enabled" : "disabled", tlv);
-	return 0;
-
-fail:
-	brcmf_fws_deinit(drvr);
-	return rc;
-}
-
-void brcmf_fws_deinit(struct brcmf_pub *drvr)
-{
-	struct brcmf_fws_info *fws = drvr->fws;
-
-	if (!fws)
-		return;
-
-	if (drvr->fws->fws_wq)
-		destroy_workqueue(drvr->fws->fws_wq);
-
-	/* cleanup */
-	brcmf_fws_lock(fws);
-	brcmf_fws_cleanup(fws, -1);
-	drvr->fws = NULL;
-	brcmf_fws_unlock(fws);
-
-	/* free top structure */
-	kfree(fws);
-}
-
-bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
-{
-	if (!fws->creditmap_received)
-		return false;
-
-	return fws->fcmode != BRCMF_FWS_FCMODE_NONE;
-}
-
-void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
-{
-	u32 hslot;
-
-	if (brcmf_skbcb(skb)->state == BRCMF_FWS_SKBSTATE_TIM) {
-		brcmu_pkt_buf_free_skb(skb);
-		return;
-	}
-	brcmf_fws_lock(fws);
-	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-	brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED, hslot, 0, 0);
-	brcmf_fws_unlock(fws);
-}
-
-void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked)
-{
-	struct brcmf_fws_info *fws = drvr->fws;
-
-	fws->bus_flow_blocked = flow_blocked;
-	if (!flow_blocked)
-		brcmf_fws_schedule_deq(fws);
-	else
-		fws->stats.bus_flow_block++;
-}