2013-03-03 19:45:28 +08:00
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/*
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* Copyright (c) 2010 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/types.h>
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2013-04-03 18:40:39 +08:00
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#include <linux/module.h>
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2013-03-03 19:45:28 +08:00
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#include <linux/if_ether.h>
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#include <linux/spinlock.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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2013-04-03 18:40:40 +08:00
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#include <linux/etherdevice.h>
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2013-03-03 19:45:28 +08:00
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#include <linux/err.h>
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#include <uapi/linux/nl80211.h>
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2013-04-03 18:40:40 +08:00
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#include <net/cfg80211.h>
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2013-03-03 19:45:28 +08:00
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#include <brcmu_utils.h>
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#include <brcmu_wifi.h>
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#include "dhd.h"
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2013-04-03 18:40:40 +08:00
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#include "dhd_proto.h"
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2013-03-03 19:45:28 +08:00
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#include "dhd_dbg.h"
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2013-04-03 18:40:38 +08:00
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#include "dhd_bus.h"
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2013-03-03 19:45:28 +08:00
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#include "fwil.h"
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#include "fweh.h"
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#include "fwsignal.h"
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/**
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* DOC: Firmware Signalling
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*
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* Firmware can send signals to host and vice versa, which are passed in the
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* data packets using TLV based header. This signalling layer is on top of the
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* BDC bus protocol layer.
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*/
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/*
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* single definition for firmware-driver flow control tlv's.
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*
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* each tlv is specified by BRCMF_FWS_TLV_DEF(name, ID, length).
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* A length value 0 indicates variable length tlv.
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*/
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#define BRCMF_FWS_TLV_DEFLIST \
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BRCMF_FWS_TLV_DEF(MAC_OPEN, 1, 1) \
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BRCMF_FWS_TLV_DEF(MAC_CLOSE, 2, 1) \
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BRCMF_FWS_TLV_DEF(MAC_REQUEST_CREDIT, 3, 2) \
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BRCMF_FWS_TLV_DEF(TXSTATUS, 4, 4) \
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BRCMF_FWS_TLV_DEF(PKTTAG, 5, 4) \
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BRCMF_FWS_TLV_DEF(MACDESC_ADD, 6, 8) \
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BRCMF_FWS_TLV_DEF(MACDESC_DEL, 7, 8) \
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BRCMF_FWS_TLV_DEF(RSSI, 8, 1) \
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BRCMF_FWS_TLV_DEF(INTERFACE_OPEN, 9, 1) \
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BRCMF_FWS_TLV_DEF(INTERFACE_CLOSE, 10, 1) \
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2013-04-03 18:40:46 +08:00
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BRCMF_FWS_TLV_DEF(FIFO_CREDITBACK, 11, 6) \
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2013-03-03 19:45:28 +08:00
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BRCMF_FWS_TLV_DEF(PENDING_TRAFFIC_BMP, 12, 2) \
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BRCMF_FWS_TLV_DEF(MAC_REQUEST_PACKET, 13, 3) \
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BRCMF_FWS_TLV_DEF(HOST_REORDER_RXPKTS, 14, 10) \
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BRCMF_FWS_TLV_DEF(TRANS_ID, 18, 6) \
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BRCMF_FWS_TLV_DEF(COMP_TXSTATUS, 19, 1) \
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BRCMF_FWS_TLV_DEF(FILLER, 255, 0)
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2013-04-03 18:40:40 +08:00
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/*
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2013-03-03 19:45:28 +08:00
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* enum brcmf_fws_tlv_type - definition of tlv identifiers.
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*/
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#define BRCMF_FWS_TLV_DEF(name, id, len) \
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BRCMF_FWS_TYPE_ ## name = id,
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enum brcmf_fws_tlv_type {
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BRCMF_FWS_TLV_DEFLIST
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BRCMF_FWS_TYPE_INVALID
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};
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#undef BRCMF_FWS_TLV_DEF
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2013-04-03 18:40:40 +08:00
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/*
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* enum brcmf_fws_tlv_len - definition of tlv lengths.
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*/
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#define BRCMF_FWS_TLV_DEF(name, id, len) \
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BRCMF_FWS_TYPE_ ## name ## _LEN = (len),
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enum brcmf_fws_tlv_len {
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BRCMF_FWS_TLV_DEFLIST
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};
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#undef BRCMF_FWS_TLV_DEF
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2013-03-03 19:45:28 +08:00
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#ifdef DEBUG
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2013-04-03 18:40:40 +08:00
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/*
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2013-03-03 19:45:28 +08:00
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* brcmf_fws_tlv_names - array of tlv names.
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*/
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#define BRCMF_FWS_TLV_DEF(name, id, len) \
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{ id, #name },
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static struct {
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enum brcmf_fws_tlv_type id;
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const char *name;
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} brcmf_fws_tlv_names[] = {
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BRCMF_FWS_TLV_DEFLIST
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};
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#undef BRCMF_FWS_TLV_DEF
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static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(brcmf_fws_tlv_names); i++)
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if (brcmf_fws_tlv_names[i].id == id)
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return brcmf_fws_tlv_names[i].name;
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return "INVALID";
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}
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#else
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static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
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{
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return "NODEBUG";
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}
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#endif /* DEBUG */
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2013-04-03 18:40:40 +08:00
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/*
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2013-03-03 19:45:28 +08:00
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* flags used to enable tlv signalling from firmware.
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*/
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2013-04-03 18:40:30 +08:00
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#define BRCMF_FWS_FLAGS_RSSI_SIGNALS 0x0001
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#define BRCMF_FWS_FLAGS_XONXOFF_SIGNALS 0x0002
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#define BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS 0x0004
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#define BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE 0x0008
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#define BRCMF_FWS_FLAGS_PSQ_GENERATIONFSM_ENABLE 0x0010
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#define BRCMF_FWS_FLAGS_PSQ_ZERO_BUFFER_ENABLE 0x0020
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#define BRCMF_FWS_FLAGS_HOST_RXREORDER_ACTIVE 0x0040
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#define BRCMF_FWS_STATE_OPEN 1
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2013-03-03 19:45:28 +08:00
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#define BRCMF_FWS_STATE_CLOSE 2
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#define BRCMF_FWS_MAC_DESC_TABLE_SIZE 32
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2013-04-03 18:40:30 +08:00
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#define BRCMF_FWS_MAX_IFNUM 16
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2013-03-03 19:45:28 +08:00
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#define BRCMF_FWS_MAC_DESC_ID_INVALID 0xff
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#define BRCMF_FWS_HOSTIF_FLOWSTATE_OFF 0
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#define BRCMF_FWS_HOSTIF_FLOWSTATE_ON 1
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2013-04-03 18:40:30 +08:00
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#define BRCMF_FWS_PSQ_PREC_COUNT ((NL80211_NUM_ACS + 1) * 2)
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#define BRCMF_FWS_PSQ_LEN 256
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2013-04-03 18:40:40 +08:00
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#define BRCMF_FWS_HTOD_FLAG_PKTFROMHOST 0x01
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#define BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED 0x02
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2013-04-03 18:40:35 +08:00
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/**
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* enum brcmf_fws_skb_state - indicates processing state of skb.
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2013-04-03 18:40:40 +08:00
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*
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* @BRCMF_FWS_SKBSTATE_NEW: sk_buff is newly arrived in the driver.
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* @BRCMF_FWS_SKBSTATE_DELAYED: sk_buff had to wait on queue.
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* @BRCMF_FWS_SKBSTATE_SUPPRESSED: sk_buff has been suppressed by firmware.
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2013-04-03 18:40:35 +08:00
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*/
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enum brcmf_fws_skb_state {
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2013-04-03 18:40:40 +08:00
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BRCMF_FWS_SKBSTATE_NEW,
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BRCMF_FWS_SKBSTATE_DELAYED,
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BRCMF_FWS_SKBSTATE_SUPPRESSED
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2013-04-03 18:40:35 +08:00
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};
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/**
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* struct brcmf_skbuff_cb - control buffer associated with skbuff.
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*
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* @if_flags: holds interface index and packet related flags.
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* @htod: host to device packet identifier (used in PKTTAG tlv).
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* @state: transmit state of the packet.
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* @mac: descriptor related to destination for this packet.
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*
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* This information is stored in control buffer struct sk_buff::cb, which
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* provides 48 bytes of storage so this structure should not exceed that.
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*/
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struct brcmf_skbuff_cb {
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u16 if_flags;
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u32 htod;
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enum brcmf_fws_skb_state state;
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struct brcmf_fws_mac_descriptor *mac;
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};
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2013-04-03 18:40:40 +08:00
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/*
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2013-04-03 18:40:35 +08:00
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* macro casting skbuff control buffer to struct brcmf_skbuff_cb.
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*/
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#define brcmf_skbcb(skb) ((struct brcmf_skbuff_cb *)((skb)->cb))
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2013-04-03 18:40:40 +08:00
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/*
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2013-04-03 18:40:35 +08:00
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* sk_buff control if flags
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*
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* b[11] - packet sent upon firmware request.
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* b[10] - packet only contains signalling data.
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* b[9] - packet is a tx packet.
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* b[8] - packet uses FIFO credit (non-pspoll).
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* b[7] - interface in AP mode.
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* b[6:4] - AC FIFO number.
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* b[3:0] - interface index.
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*/
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#define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK 0x0800
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#define BRCMF_SKB_IF_FLAGS_REQUESTED_SHIFT 11
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#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_MASK 0x0400
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#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_SHIFT 10
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#define BRCMF_SKB_IF_FLAGS_TRANSMIT_MASK 0x0200
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#define BRCMF_SKB_IF_FLAGS_TRANSMIT_SHIFT 9
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#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK 0x0100
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#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_SHIFT 8
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#define BRCMF_SKB_IF_FLAGS_IF_AP_MASK 0x0080
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#define BRCMF_SKB_IF_FLAGS_IF_AP_SHIFT 7
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#define BRCMF_SKB_IF_FLAGS_FIFO_MASK 0x0070
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#define BRCMF_SKB_IF_FLAGS_FIFO_SHIFT 4
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#define BRCMF_SKB_IF_FLAGS_INDEX_MASK 0x000f
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#define BRCMF_SKB_IF_FLAGS_INDEX_SHIFT 0
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#define brcmf_skb_if_flags_set_field(skb, field, value) \
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brcmu_maskset16(&(brcmf_skbcb(skb)->if_flags), \
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BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \
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BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT, (value))
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#define brcmf_skb_if_flags_get_field(skb, field) \
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brcmu_maskget16(brcmf_skbcb(skb)->if_flags, \
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BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \
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BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT)
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2013-04-03 18:40:40 +08:00
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/*
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2013-04-03 18:40:35 +08:00
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* sk_buff control packet identifier
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*
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* 32-bit packet identifier used in PKTTAG tlv from host to dongle.
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*
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* - Generated at the host (e.g. dhd)
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* - Seen as a generic sequence number by firmware except for the flags field.
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*
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* Generation : b[31] => generation number for this packet [host->fw]
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* OR, current generation number [fw->host]
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* Flags : b[30:27] => command, status flags
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* FIFO-AC : b[26:24] => AC-FIFO id
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* h-slot : b[23:8] => hanger-slot
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* freerun : b[7:0] => A free running counter
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*/
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#define BRCMF_SKB_HTOD_TAG_GENERATION_MASK 0x80000000
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#define BRCMF_SKB_HTOD_TAG_GENERATION_SHIFT 31
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#define BRCMF_SKB_HTOD_TAG_FLAGS_MASK 0x78000000
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#define BRCMF_SKB_HTOD_TAG_FLAGS_SHIFT 27
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#define BRCMF_SKB_HTOD_TAG_FIFO_MASK 0x07000000
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#define BRCMF_SKB_HTOD_TAG_FIFO_SHIFT 24
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#define BRCMF_SKB_HTOD_TAG_HSLOT_MASK 0x00ffff00
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#define BRCMF_SKB_HTOD_TAG_HSLOT_SHIFT 8
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#define BRCMF_SKB_HTOD_TAG_FREERUN_MASK 0x000000ff
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#define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT 0
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#define brcmf_skb_htod_tag_set_field(skb, field, value) \
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2013-04-03 18:40:38 +08:00
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brcmu_maskset32(&(brcmf_skbcb(skb)->htod), \
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2013-04-03 18:40:35 +08:00
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BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \
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BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT, (value))
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#define brcmf_skb_htod_tag_get_field(skb, field) \
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2013-04-03 18:40:38 +08:00
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brcmu_maskget32(brcmf_skbcb(skb)->htod, \
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2013-04-03 18:40:35 +08:00
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BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \
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BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT)
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2013-04-03 18:40:40 +08:00
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#define BRCMF_FWS_TXSTAT_GENERATION_MASK 0x80000000
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#define BRCMF_FWS_TXSTAT_GENERATION_SHIFT 31
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#define BRCMF_FWS_TXSTAT_FLAGS_MASK 0x78000000
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#define BRCMF_FWS_TXSTAT_FLAGS_SHIFT 27
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#define BRCMF_FWS_TXSTAT_FIFO_MASK 0x07000000
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#define BRCMF_FWS_TXSTAT_FIFO_SHIFT 24
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#define BRCMF_FWS_TXSTAT_HSLOT_MASK 0x00FFFF00
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#define BRCMF_FWS_TXSTAT_HSLOT_SHIFT 8
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#define BRCMF_FWS_TXSTAT_PKTID_MASK 0x00FFFFFF
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#define BRCMF_FWS_TXSTAT_PKTID_SHIFT 0
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#define brcmf_txstatus_get_field(txs, field) \
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brcmu_maskget32(txs, BRCMF_FWS_TXSTAT_ ## field ## _MASK, \
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BRCMF_FWS_TXSTAT_ ## field ## _SHIFT)
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/**
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* enum brcmf_fws_fifo - fifo indices used by dongle firmware.
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*
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* @BRCMF_FWS_FIFO_AC_BK: fifo for background traffic.
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* @BRCMF_FWS_FIFO_AC_BE: fifo for best-effort traffic.
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* @BRCMF_FWS_FIFO_AC_VI: fifo for video traffic.
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* @BRCMF_FWS_FIFO_AC_VO: fifo for voice traffic.
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* @BRCMF_FWS_FIFO_BCMC: fifo for broadcast/multicast (AP only).
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* @BRCMF_FWS_FIFO_ATIM: fifo for ATIM (AP only).
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* @BRCMF_FWS_FIFO_COUNT: number of fifos.
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*/
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enum brcmf_fws_fifo {
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BRCMF_FWS_FIFO_AC_BK,
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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.
|
|
|
|
*/
|
|
|
|
enum brcmf_fws_txstatus {
|
|
|
|
BRCMF_FWS_TXSTATUS_DISCARD,
|
|
|
|
BRCMF_FWS_TXSTATUS_CORE_SUPPRESS,
|
|
|
|
BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS,
|
|
|
|
BRCMF_FWS_TXSTATUS_FW_TOSSED
|
|
|
|
};
|
|
|
|
|
2013-04-03 18:40:39 +08:00
|
|
|
enum brcmf_fws_fcmode {
|
|
|
|
BRCMF_FWS_FCMODE_NONE,
|
|
|
|
BRCMF_FWS_FCMODE_IMPLIED_CREDIT,
|
|
|
|
BRCMF_FWS_FCMODE_EXPLICIT_CREDIT
|
|
|
|
};
|
|
|
|
|
2013-04-03 18:40:30 +08:00
|
|
|
/**
|
|
|
|
* struct brcmf_fws_mac_descriptor - firmware signalling data per node/interface
|
|
|
|
*
|
|
|
|
* @occupied: slot is in use.
|
2013-04-03 18:40:31 +08:00
|
|
|
* @mac_handle: handle for mac entry determined by firmware.
|
2013-04-03 18:40:30 +08:00
|
|
|
* @interface_id: interface index.
|
|
|
|
* @state: current state.
|
2013-04-03 18:40:40 +08:00
|
|
|
* @suppressed: mac entry is suppressed.
|
|
|
|
* @generation: generation bit.
|
2013-04-03 18:40:30 +08:00
|
|
|
* @ac_bitmap: ac queue bitmap.
|
|
|
|
* @requested_credit: credits requested by firmware.
|
|
|
|
* @ea: ethernet address.
|
2013-04-03 18:40:40 +08:00
|
|
|
* @seq: per-node free-running sequence.
|
2013-04-03 18:40:30 +08:00
|
|
|
* @psq: power-save queue.
|
2013-04-03 18:40:40 +08:00
|
|
|
* @transit_count: packet in transit to firmware.
|
2013-04-03 18:40:30 +08:00
|
|
|
*/
|
|
|
|
struct brcmf_fws_mac_descriptor {
|
|
|
|
u8 occupied;
|
2013-04-03 18:40:31 +08:00
|
|
|
u8 mac_handle;
|
2013-04-03 18:40:30 +08:00
|
|
|
u8 interface_id;
|
|
|
|
u8 state;
|
2013-04-03 18:40:40 +08:00
|
|
|
bool suppressed;
|
|
|
|
u8 generation;
|
2013-04-03 18:40:30 +08:00
|
|
|
u8 ac_bitmap;
|
|
|
|
u8 requested_credit;
|
|
|
|
u8 ea[ETH_ALEN];
|
2013-04-03 18:40:40 +08:00
|
|
|
u8 seq[BRCMF_FWS_FIFO_COUNT];
|
2013-04-03 18:40:30 +08:00
|
|
|
struct pktq psq;
|
2013-04-03 18:40:40 +08:00
|
|
|
int transit_count;
|
2013-04-03 18:40:30 +08:00
|
|
|
};
|
|
|
|
|
2013-04-03 18:40:37 +08:00
|
|
|
#define BRCMF_FWS_HANGER_MAXITEMS 1024
|
|
|
|
|
|
|
|
/**
|
|
|
|
* enum brcmf_fws_hanger_item_state - state of hanger item.
|
|
|
|
*
|
2013-04-03 18:40:40 +08:00
|
|
|
* @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.
|
2013-04-03 18:40:37 +08:00
|
|
|
*/
|
|
|
|
enum brcmf_fws_hanger_item_state {
|
2013-04-03 18:40:40 +08:00
|
|
|
BRCMF_FWS_HANGER_ITEM_STATE_FREE = 1,
|
|
|
|
BRCMF_FWS_HANGER_ITEM_STATE_INUSE,
|
|
|
|
BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED
|
2013-04-03 18:40:37 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* struct brcmf_fws_hanger_item - single entry for tx pending packet.
|
|
|
|
*
|
|
|
|
* @state: entry is either free or occupied.
|
|
|
|
* @gen: generation.
|
|
|
|
* @pkt: packet itself.
|
|
|
|
*/
|
|
|
|
struct brcmf_fws_hanger_item {
|
|
|
|
enum brcmf_fws_hanger_item_state state;
|
|
|
|
u8 gen;
|
|
|
|
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];
|
|
|
|
};
|
|
|
|
|
2013-03-03 19:45:28 +08:00
|
|
|
struct brcmf_fws_info {
|
|
|
|
struct brcmf_pub *drvr;
|
|
|
|
struct brcmf_fws_stats stats;
|
2013-04-03 18:40:37 +08:00
|
|
|
struct brcmf_fws_hanger hanger;
|
2013-04-03 18:40:31 +08:00
|
|
|
struct brcmf_fws_mac_descriptor nodes[BRCMF_FWS_MAC_DESC_TABLE_SIZE];
|
2013-04-03 18:40:33 +08:00
|
|
|
struct brcmf_fws_mac_descriptor other;
|
2013-04-03 18:40:39 +08:00
|
|
|
enum brcmf_fws_fcmode fcmode;
|
2013-04-03 18:40:40 +08:00
|
|
|
int fifo_credit[BRCMF_FWS_FIFO_COUNT];
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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
|
2013-03-03 19:45:28 +08:00
|
|
|
};
|
|
|
|
|
2013-04-03 18:40:39 +08:00
|
|
|
static int fcmode;
|
|
|
|
module_param(fcmode, int, S_IRUSR);
|
|
|
|
MODULE_PARM_DESC(fcmode, "mode of firmware signalled flow control");
|
|
|
|
|
2013-04-03 18:40:30 +08:00
|
|
|
#define BRCMF_FWS_TLV_DEF(name, id, len) \
|
|
|
|
case BRCMF_FWS_TYPE_ ## name: \
|
|
|
|
return len;
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*/
|
2013-04-03 18:40:30 +08:00
|
|
|
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
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
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) {
|
|
|
|
brcmf_txfinalize(fws->drvr, skb, false);
|
|
|
|
skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:37 +08:00
|
|
|
static void brcmf_fws_hanger_init(struct brcmf_fws_hanger *hanger)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter\n");
|
|
|
|
memset(hanger, 0, sizeof(*hanger));
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hanger->items); i++)
|
2013-04-03 18:40:40 +08:00
|
|
|
hanger->items[i].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
|
2013-04-03 18:40:37 +08:00
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static u32 brcmf_fws_hanger_get_free_slot(struct brcmf_fws_hanger *h)
|
2013-04-03 18:40:37 +08:00
|
|
|
{
|
|
|
|
u32 i;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter\n");
|
|
|
|
i = (h->slot_pos + 1) % BRCMF_FWS_HANGER_MAXITEMS;
|
|
|
|
|
|
|
|
while (i != h->slot_pos) {
|
2013-04-03 18:40:40 +08:00
|
|
|
if (h->items[i].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
|
2013-04-03 18:40:37 +08:00
|
|
|
h->slot_pos = i;
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
i++;
|
|
|
|
if (i == BRCMF_FWS_HANGER_MAXITEMS)
|
|
|
|
i = 0;
|
|
|
|
}
|
|
|
|
brcmf_err("all slots occupied\n");
|
|
|
|
h->failed_slotfind++;
|
|
|
|
return BRCMF_FWS_HANGER_MAXITEMS;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static int brcmf_fws_hanger_pushpkt(struct brcmf_fws_hanger *h,
|
2013-04-03 18:40:37 +08:00
|
|
|
struct sk_buff *pkt, u32 slot_id)
|
|
|
|
{
|
|
|
|
brcmf_dbg(TRACE, "enter\n");
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static int brcmf_fws_hanger_poppkt(struct brcmf_fws_hanger *h,
|
2013-04-03 18:40:37 +08:00
|
|
|
u32 slot_id, struct sk_buff **pktout,
|
|
|
|
bool remove_item)
|
|
|
|
{
|
|
|
|
brcmf_dbg(TRACE, "enter\n");
|
|
|
|
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->items[slot_id].gen = 0xff;
|
|
|
|
h->popped++;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static __used int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
|
|
|
|
u32 slot_id, u8 gen)
|
|
|
|
{
|
|
|
|
brcmf_dbg(TRACE, "enter\n");
|
|
|
|
|
|
|
|
if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
|
|
|
|
return -ENOENT;
|
|
|
|
|
|
|
|
h->items[slot_id].gen = gen;
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
if (h->items[slot_id].state != BRCMF_FWS_HANGER_ITEM_STATE_INUSE) {
|
2013-04-03 18:40:37 +08:00
|
|
|
brcmf_err("entry not in use\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED;
|
2013-04-03 18:40:37 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static int brcmf_fws_hanger_get_genbit(struct brcmf_fws_hanger *hanger,
|
2013-04-03 18:40:37 +08:00
|
|
|
struct sk_buff *pkt, u32 slot_id,
|
|
|
|
int *gen)
|
|
|
|
{
|
|
|
|
brcmf_dbg(TRACE, "enter\n");
|
|
|
|
*gen = 0xff;
|
|
|
|
|
|
|
|
if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
|
|
|
|
return -ENOENT;
|
|
|
|
|
|
|
|
if (hanger->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
|
|
|
|
brcmf_err("slot not in use\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
*gen = hanger->items[slot_id].gen;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void brcmf_fws_hanger_cleanup(struct brcmf_fws_hanger *h,
|
|
|
|
bool (*fn)(struct sk_buff *, void *),
|
|
|
|
int ifidx)
|
|
|
|
{
|
|
|
|
struct sk_buff *skb;
|
|
|
|
int i;
|
|
|
|
enum brcmf_fws_hanger_item_state s;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:31 +08:00
|
|
|
static void brcmf_fws_init_mac_descriptor(struct brcmf_fws_mac_descriptor *desc,
|
|
|
|
u8 *addr, u8 ifidx)
|
|
|
|
{
|
|
|
|
brcmf_dbg(TRACE, "enter: ea=%pM, ifidx=%u\n", addr, ifidx);
|
|
|
|
desc->occupied = 1;
|
|
|
|
desc->state = BRCMF_FWS_STATE_OPEN;
|
|
|
|
desc->requested_credit = 0;
|
|
|
|
/* depending on use may need ifp->bssidx instead */
|
|
|
|
desc->interface_id = ifidx;
|
|
|
|
desc->ac_bitmap = 0xff; /* update this when handling APSD */
|
|
|
|
memcpy(&desc->ea[0], addr, ETH_ALEN);
|
|
|
|
}
|
|
|
|
|
|
|
|
static
|
|
|
|
void brcmf_fws_clear_mac_descriptor(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;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct brcmf_fws_mac_descriptor *
|
|
|
|
brcmf_fws_mac_descriptor_lookup(struct brcmf_fws_info *fws, u8 *ea)
|
|
|
|
{
|
|
|
|
struct brcmf_fws_mac_descriptor *entry;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ea=%pM\n", ea);
|
|
|
|
if (ea == NULL)
|
|
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
|
|
|
|
entry = &fws->nodes[0];
|
|
|
|
for (i = 0; i < ARRAY_SIZE(fws->nodes); i++) {
|
|
|
|
if (entry->occupied && !memcmp(entry->ea, ea, ETH_ALEN))
|
|
|
|
return entry;
|
|
|
|
entry++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ERR_PTR(-ENOENT);
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static struct brcmf_fws_mac_descriptor*
|
|
|
|
brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, int ifidx, u8 *da)
|
|
|
|
{
|
|
|
|
struct brcmf_fws_mac_descriptor *entry = &fws->other;
|
|
|
|
struct brcmf_if *ifp;
|
|
|
|
bool multicast;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
|
|
|
|
|
|
|
|
multicast = is_multicast_ether_addr(da);
|
|
|
|
ifp = fws->drvr->iflist[ifidx ? ifidx + 1 : 0];
|
|
|
|
if (WARN_ON(!ifp))
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
/* Multicast destination and P2P clients get the interface entry.
|
|
|
|
* STA gets the interface entry if there is no exact match. For
|
|
|
|
* example, TDLS destinations have their own entry.
|
|
|
|
*/
|
|
|
|
entry = NULL;
|
|
|
|
if ((/* ifp->iftype == 0 ||*/ multicast) && ifp->fws_desc)
|
|
|
|
entry = ifp->fws_desc;
|
|
|
|
|
|
|
|
if (entry != NULL && multicast)
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
entry = brcmf_fws_mac_descriptor_lookup(fws, da);
|
|
|
|
if (IS_ERR(entry))
|
|
|
|
entry = &fws->other;
|
|
|
|
|
|
|
|
done:
|
|
|
|
brcmf_dbg(TRACE, "exit: entry=%p\n", entry);
|
|
|
|
return entry;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void brcmf_fws_mac_desc_cleanup(struct brcmf_fws_info *fws,
|
|
|
|
struct brcmf_fws_mac_descriptor *entry,
|
2013-04-03 18:40:33 +08:00
|
|
|
int ifidx)
|
|
|
|
{
|
2013-04-03 18:40:40 +08:00
|
|
|
brcmf_dbg(TRACE, "enter: entry=(ea=%pM, ifid=%d), ifidx=%d\n",
|
2013-04-03 18:40:33 +08:00
|
|
|
entry->ea, entry->interface_id, ifidx);
|
2013-04-03 18:40:40 +08:00
|
|
|
if (entry->occupied && (ifidx == -1 || ifidx == entry->interface_id)) {
|
|
|
|
brcmf_dbg(TRACE, "flush psq: ifidx=%d, qlen=%d\n",
|
2013-04-03 18:40:33 +08:00
|
|
|
ifidx, entry->psq.len);
|
2013-04-03 18:40:40 +08:00
|
|
|
brcmf_fws_psq_flush(fws, &entry->psq, ifidx);
|
2013-04-03 18:40:33 +08:00
|
|
|
entry->occupied = !!(entry->psq.len);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:38 +08:00
|
|
|
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;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:33 +08:00
|
|
|
static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct brcmf_fws_mac_descriptor *table;
|
2013-04-03 18:40:36 +08:00
|
|
|
bool (*matchfn)(struct sk_buff *, void *) = NULL;
|
2013-04-03 18:40:33 +08:00
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
|
|
|
|
if (fws == NULL)
|
|
|
|
return;
|
|
|
|
|
2013-04-03 18:40:36 +08:00
|
|
|
if (ifidx != -1)
|
|
|
|
matchfn = brcmf_fws_ifidx_match;
|
|
|
|
|
2013-04-03 18:40:33 +08:00
|
|
|
/* cleanup individual nodes */
|
|
|
|
table = &fws->nodes[0];
|
|
|
|
for (i = 0; i < ARRAY_SIZE(fws->nodes); i++)
|
2013-04-03 18:40:40 +08:00
|
|
|
brcmf_fws_mac_desc_cleanup(fws, &table[i], ifidx);
|
2013-04-03 18:40:33 +08:00
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
brcmf_fws_mac_desc_cleanup(fws, &fws->other, ifidx);
|
2013-04-03 18:40:38 +08:00
|
|
|
brcmf_fws_bus_txq_cleanup(fws, matchfn, ifidx);
|
2013-04-03 18:40:37 +08:00
|
|
|
brcmf_fws_hanger_cleanup(&fws->hanger, matchfn, ifidx);
|
2013-04-03 18:40:33 +08:00
|
|
|
}
|
|
|
|
|
2013-03-03 19:45:28 +08:00
|
|
|
static int brcmf_fws_rssi_indicate(struct brcmf_fws_info *fws, s8 rssi)
|
|
|
|
{
|
|
|
|
brcmf_dbg(CTL, "rssi %d\n", rssi);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:31 +08:00
|
|
|
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->nodes[mac_handle & 0x1F];
|
|
|
|
if (type == BRCMF_FWS_TYPE_MACDESC_DEL) {
|
|
|
|
brcmf_dbg(TRACE, "deleting mac %pM idx %d\n", addr, ifidx);
|
2013-04-03 18:40:40 +08:00
|
|
|
if (entry->occupied)
|
|
|
|
brcmf_fws_clear_mac_descriptor(entry);
|
|
|
|
else
|
2013-04-03 18:40:31 +08:00
|
|
|
fws->stats.mac_update_failed++;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
brcmf_dbg(TRACE,
|
|
|
|
"add mac %pM handle %u idx %d\n", addr, mac_handle, ifidx);
|
2013-04-03 18:40:31 +08:00
|
|
|
existing = brcmf_fws_mac_descriptor_lookup(fws, addr);
|
|
|
|
if (IS_ERR(existing)) {
|
|
|
|
if (!entry->occupied) {
|
|
|
|
entry->mac_handle = mac_handle;
|
|
|
|
brcmf_fws_init_mac_descriptor(entry, addr, ifidx);
|
|
|
|
brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
|
|
|
|
BRCMF_FWS_PSQ_LEN);
|
|
|
|
} else {
|
|
|
|
fws->stats.mac_update_failed++;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (entry != existing) {
|
|
|
|
brcmf_dbg(TRACE, "relocate mac\n");
|
|
|
|
memcpy(entry, existing,
|
|
|
|
offsetof(struct brcmf_fws_mac_descriptor, psq));
|
|
|
|
entry->mac_handle = mac_handle;
|
|
|
|
brcmf_fws_clear_mac_descriptor(existing);
|
|
|
|
} else {
|
|
|
|
brcmf_dbg(TRACE, "use existing\n");
|
|
|
|
WARN_ON(entry->mac_handle != mac_handle);
|
|
|
|
/* TODO: what should we do here: continue, reinit, .. */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static int
|
2013-04-03 18:40:41 +08:00
|
|
|
brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot)
|
2013-04-03 18:40:40 +08:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
struct sk_buff *skb;
|
|
|
|
struct brcmf_fws_mac_descriptor *entry = NULL;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "status: flags=0x%X, hslot=%d\n",
|
|
|
|
flags, hslot);
|
|
|
|
|
|
|
|
if (flags == BRCMF_FWS_TXSTATUS_DISCARD)
|
|
|
|
fws->stats.txs_discard++;
|
|
|
|
else if (flags == BRCMF_FWS_TXSTATUS_FW_TOSSED)
|
|
|
|
fws->stats.txs_tossed++;
|
|
|
|
else
|
|
|
|
brcmf_err("unexpected txstatus\n");
|
|
|
|
|
|
|
|
ret = brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb,
|
|
|
|
true);
|
|
|
|
if (ret != 0) {
|
|
|
|
brcmf_err("no packet in hanger slot: hslot=%d\n", hslot);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
entry = brcmf_skbcb(skb)->mac;
|
|
|
|
if (WARN_ON(!entry)) {
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
entry->transit_count--;
|
|
|
|
|
|
|
|
done:
|
|
|
|
brcmf_txfinalize(fws->drvr, skb, true);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:41 +08:00
|
|
|
static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
|
|
|
|
{
|
|
|
|
u32 status;
|
|
|
|
u32 hslot;
|
|
|
|
u8 flags;
|
|
|
|
|
|
|
|
fws->stats.txs_indicate++;
|
|
|
|
status = le32_to_cpu(*(__le32 *)data);
|
|
|
|
flags = brcmf_txstatus_get_field(status, FLAGS);
|
|
|
|
hslot = brcmf_txstatus_get_field(status, HSLOT);
|
|
|
|
|
|
|
|
return brcmf_fws_txstatus_process(fws, flags, hslot);
|
|
|
|
}
|
|
|
|
|
2013-03-03 19:45:28 +08:00
|
|
|
static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
|
|
|
|
{
|
|
|
|
__le32 timestamp;
|
|
|
|
|
|
|
|
memcpy(×tamp, &data[2], sizeof(timestamp));
|
|
|
|
brcmf_dbg(INFO, "received: seq %d, timestamp %d\n", data[1],
|
|
|
|
le32_to_cpu(timestamp));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* using macro so sparse checking does not complain
|
|
|
|
* about locking imbalance.
|
|
|
|
*/
|
|
|
|
#define brcmf_fws_lock(drvr, flags) \
|
|
|
|
do { \
|
|
|
|
flags = 0; \
|
|
|
|
spin_lock_irqsave(&((drvr)->fws_spinlock), (flags)); \
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
/* using macro so sparse checking does not complain
|
|
|
|
* about locking imbalance.
|
|
|
|
*/
|
|
|
|
#define brcmf_fws_unlock(drvr, flags) \
|
|
|
|
spin_unlock_irqrestore(&((drvr)->fws_spinlock), (flags))
|
|
|
|
|
2013-04-03 18:40:32 +08:00
|
|
|
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;
|
|
|
|
ulong flags;
|
|
|
|
u8 *credits = data;
|
|
|
|
|
|
|
|
brcmf_fws_lock(ifp->drvr, flags);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(fws->fifo_credit); i++)
|
|
|
|
fws->fifo_credit[i] = *credits++;
|
|
|
|
brcmf_fws_unlock(ifp->drvr, flags);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-03-03 19:45:28 +08:00
|
|
|
int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
|
|
|
|
struct sk_buff *skb)
|
|
|
|
{
|
|
|
|
struct brcmf_fws_info *fws = drvr->fws;
|
|
|
|
ulong flags;
|
|
|
|
u8 *signal_data;
|
|
|
|
s16 data_len;
|
|
|
|
u8 type;
|
|
|
|
u8 len;
|
|
|
|
u8 *data;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ifidx %d, skblen %u, sig %d\n",
|
|
|
|
ifidx, skb->len, signal_len);
|
|
|
|
|
|
|
|
WARN_ON(signal_len > skb->len);
|
|
|
|
|
|
|
|
/* if flow control disabled, skip to packet data and leave */
|
|
|
|
if (!signal_len || !drvr->fw_signals) {
|
|
|
|
skb_pull(skb, signal_len);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* lock during tlv parsing */
|
|
|
|
brcmf_fws_lock(drvr, flags);
|
|
|
|
|
|
|
|
fws->stats.header_pulls++;
|
|
|
|
data_len = signal_len;
|
|
|
|
signal_data = skb->data;
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
2013-04-03 18:40:42 +08:00
|
|
|
brcmf_dbg(INFO, "tlv type=%d (%s), len=%d, data[0]=%d\n", type,
|
|
|
|
brcmf_fws_get_tlv_name(type), len, *data);
|
|
|
|
|
2013-03-03 19:45:28 +08:00
|
|
|
/* abort parsing when length invalid */
|
|
|
|
if (data_len < len + 2)
|
|
|
|
break;
|
|
|
|
|
2013-04-03 18:40:30 +08:00
|
|
|
if (len != brcmf_fws_get_tlv_len(fws, type))
|
|
|
|
break;
|
|
|
|
|
2013-03-03 19:45:28 +08:00
|
|
|
switch (type) {
|
|
|
|
case BRCMF_FWS_TYPE_MAC_OPEN:
|
|
|
|
case BRCMF_FWS_TYPE_MAC_CLOSE:
|
|
|
|
case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT:
|
|
|
|
case BRCMF_FWS_TYPE_PKTTAG:
|
|
|
|
case BRCMF_FWS_TYPE_INTERFACE_OPEN:
|
|
|
|
case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
|
|
|
|
case BRCMF_FWS_TYPE_FIFO_CREDITBACK:
|
|
|
|
case BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP:
|
|
|
|
case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET:
|
|
|
|
case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS:
|
2013-04-03 18:40:30 +08:00
|
|
|
case BRCMF_FWS_TYPE_COMP_TXSTATUS:
|
2013-04-03 18:40:31 +08:00
|
|
|
break;
|
2013-04-03 18:40:30 +08:00
|
|
|
case BRCMF_FWS_TYPE_MACDESC_ADD:
|
|
|
|
case BRCMF_FWS_TYPE_MACDESC_DEL:
|
2013-04-03 18:40:31 +08:00
|
|
|
brcmf_fws_macdesc_indicate(fws, type, data);
|
2013-04-03 18:40:30 +08:00
|
|
|
break;
|
2013-04-03 18:40:40 +08:00
|
|
|
case BRCMF_FWS_TYPE_TXSTATUS:
|
|
|
|
brcmf_fws_txstatus_indicate(fws, data);
|
|
|
|
break;
|
2013-04-03 18:40:30 +08:00
|
|
|
case BRCMF_FWS_TYPE_RSSI:
|
|
|
|
brcmf_fws_rssi_indicate(fws, *data);
|
2013-03-03 19:45:28 +08:00
|
|
|
break;
|
|
|
|
case BRCMF_FWS_TYPE_TRANS_ID:
|
|
|
|
brcmf_fws_dbg_seqnum_check(fws, data);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
fws->stats.tlv_invalid_type++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
signal_data += len + 2;
|
|
|
|
data_len -= len + 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (data_len != 0)
|
|
|
|
fws->stats.tlv_parse_failed++;
|
|
|
|
|
|
|
|
/* signalling processing result does
|
|
|
|
* not affect the actual ethernet packet.
|
|
|
|
*/
|
|
|
|
skb_pull(skb, signal_len);
|
|
|
|
|
|
|
|
/* this may be a signal-only packet
|
|
|
|
*/
|
|
|
|
if (skb->len == 0)
|
|
|
|
fws->stats.header_only_pkt++;
|
|
|
|
|
|
|
|
brcmf_fws_unlock(drvr, flags);
|
|
|
|
return 0;
|
|
|
|
}
|
2013-04-03 18:40:30 +08:00
|
|
|
|
2013-04-03 18:40:40 +08:00
|
|
|
static int 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;
|
|
|
|
u8 fillers;
|
|
|
|
__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: ea=%pM, ifidx=%u, pkttag=0x%08X\n",
|
|
|
|
entry->ea, entry->interface_id, le32_to_cpu(pkttag));
|
|
|
|
/* +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));
|
|
|
|
wlh += BRCMF_FWS_TYPE_PKTTAG_LEN + 2;
|
|
|
|
|
|
|
|
if (fillers)
|
|
|
|
memset(wlh, BRCMF_FWS_TYPE_FILLER, fillers);
|
|
|
|
|
|
|
|
brcmf_proto_hdrpush(fws->drvr, brcmf_skb_if_flags_get_field(skb, INDEX),
|
|
|
|
data_offset >> 2, skb);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int 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;
|
|
|
|
int rc = 0;
|
|
|
|
bool header_needed;
|
|
|
|
int hslot = BRCMF_FWS_HANGER_MAXITEMS;
|
|
|
|
u8 free_ctr;
|
|
|
|
u8 ifidx;
|
|
|
|
u8 flags;
|
|
|
|
|
|
|
|
header_needed = skcb->state == BRCMF_FWS_SKBSTATE_NEW;
|
|
|
|
|
|
|
|
if (header_needed) {
|
|
|
|
/* obtaining free slot may fail, but that will be caught
|
|
|
|
* by the hanger push. This assures the packet has a BDC
|
|
|
|
* header upon return.
|
|
|
|
*/
|
|
|
|
hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
|
|
|
|
free_ctr = entry->seq[fifo];
|
|
|
|
brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
|
|
|
|
brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
|
|
|
|
brcmf_skb_htod_tag_set_field(p, GENERATION, 1);
|
|
|
|
entry->transit_count++;
|
|
|
|
}
|
|
|
|
brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
|
|
|
|
brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
|
|
|
|
|
|
|
|
flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
|
|
|
|
if (!(skcb->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)) {
|
|
|
|
/*
|
|
|
|
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);
|
|
|
|
if (header_needed) {
|
|
|
|
brcmf_fws_hdrpush(fws, p);
|
|
|
|
rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
|
|
|
|
if (rc)
|
|
|
|
brcmf_err("hanger push failed: rc=%d\n", rc);
|
|
|
|
} else {
|
|
|
|
int gen;
|
|
|
|
|
|
|
|
/* remove old header */
|
|
|
|
rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, p);
|
|
|
|
if (rc == 0) {
|
|
|
|
hslot = brcmf_skb_htod_tag_get_field(p, HSLOT);
|
|
|
|
brcmf_fws_hanger_get_genbit(&fws->hanger, p,
|
|
|
|
hslot, &gen);
|
|
|
|
brcmf_skb_htod_tag_set_field(p, GENERATION, gen);
|
|
|
|
|
|
|
|
/* push new header */
|
|
|
|
brcmf_fws_hdrpush(fws, p);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
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;
|
|
|
|
struct brcmf_bus *bus = fws->drvr->bus_if;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
entry = skcb->mac;
|
|
|
|
if (IS_ERR(entry))
|
|
|
|
return PTR_ERR(entry);
|
|
|
|
|
|
|
|
rc = brcmf_fws_precommit_skb(fws, fifo, skb);
|
|
|
|
if (rc < 0) {
|
|
|
|
fws->stats.generic_error++;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = brcmf_bus_txdata(bus, skb);
|
|
|
|
if (rc < 0)
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
entry->seq[fifo]++;
|
|
|
|
fws->stats.pkt2bus++;
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
done:
|
|
|
|
brcmf_txfinalize(fws->drvr, skb, false);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
|
|
|
|
{
|
|
|
|
struct brcmf_pub *drvr = ifp->drvr;
|
|
|
|
struct brcmf_skbuff_cb *skcb = brcmf_skbcb(skb);
|
|
|
|
struct ethhdr *eh = (struct ethhdr *)(skb->data);
|
|
|
|
ulong flags;
|
|
|
|
u8 ifidx = ifp->ifidx;
|
|
|
|
int fifo = BRCMF_FWS_FIFO_BCMC;
|
|
|
|
bool multicast = is_multicast_ether_addr(eh->h_dest);
|
|
|
|
|
|
|
|
/* determine the priority */
|
|
|
|
if (!skb->priority)
|
|
|
|
skb->priority = cfg80211_classify8021d(skb);
|
|
|
|
|
|
|
|
drvr->tx_multicast += !!multicast;
|
|
|
|
if (ntohs(eh->h_proto) == ETH_P_PAE)
|
|
|
|
atomic_inc(&ifp->pend_8021x_cnt);
|
|
|
|
|
|
|
|
if (!brcmf_fws_fc_active(drvr->fws)) {
|
|
|
|
/* If the protocol uses a data header, apply it */
|
|
|
|
brcmf_proto_hdrpush(drvr, ifidx, 0, skb);
|
|
|
|
|
|
|
|
/* Use bus module to send data frame */
|
|
|
|
return brcmf_bus_txdata(drvr->bus_if, skb);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* set control buffer information */
|
|
|
|
skcb->mac = brcmf_fws_find_mac_desc(drvr->fws, ifidx, eh->h_dest);
|
|
|
|
skcb->state = BRCMF_FWS_SKBSTATE_NEW;
|
|
|
|
brcmf_skb_if_flags_set_field(skb, INDEX, ifidx);
|
|
|
|
if (!multicast)
|
|
|
|
fifo = brcmf_fws_prio2fifo[skb->priority];
|
|
|
|
brcmf_skb_if_flags_set_field(skb, FIFO, fifo);
|
|
|
|
brcmf_skb_if_flags_set_field(skb, CREDITCHECK, 0);
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "ea=%pM, multi=%d, fifo=%d\n", eh->h_dest,
|
|
|
|
multicast, fifo);
|
|
|
|
|
|
|
|
brcmf_fws_lock(drvr, flags);
|
|
|
|
brcmf_fws_commit_skb(drvr->fws, fifo, skb);
|
|
|
|
brcmf_fws_unlock(drvr, flags);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:30 +08:00
|
|
|
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;
|
|
|
|
|
2013-04-03 18:40:31 +08:00
|
|
|
brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
|
2013-04-03 18:40:30 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
void brcmf_fws_add_interface(struct brcmf_if *ifp)
|
|
|
|
{
|
|
|
|
struct brcmf_fws_mac_descriptor *entry;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: idx=%d, mac=%pM\n",
|
|
|
|
ifp->bssidx, ifp->mac_addr);
|
|
|
|
if (!ifp->drvr->fw_signals)
|
|
|
|
return;
|
|
|
|
|
|
|
|
entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
|
|
|
|
if (entry) {
|
|
|
|
ifp->fws_desc = entry;
|
2013-04-03 18:40:31 +08:00
|
|
|
brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
|
2013-04-03 18:40:30 +08:00
|
|
|
brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
|
|
|
|
BRCMF_FWS_PSQ_LEN);
|
|
|
|
} else {
|
|
|
|
brcmf_err("no firmware signalling\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void brcmf_fws_del_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;
|
|
|
|
|
|
|
|
ifp->fws_desc = NULL;
|
2013-04-03 18:40:31 +08:00
|
|
|
brcmf_fws_clear_mac_descriptor(entry);
|
2013-04-03 18:40:36 +08:00
|
|
|
brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx);
|
2013-04-03 18:40:30 +08:00
|
|
|
kfree(entry);
|
|
|
|
}
|
2013-04-03 18:40:39 +08:00
|
|
|
|
2013-04-03 18:40:47 +08:00
|
|
|
int brcmf_fws_init(struct brcmf_pub *drvr)
|
|
|
|
{
|
|
|
|
u32 tlv = 0;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
/* enable rssi signals */
|
|
|
|
if (drvr->fw_signals)
|
|
|
|
tlv = BRCMF_FWS_FLAGS_RSSI_SIGNALS |
|
|
|
|
BRCMF_FWS_FLAGS_XONXOFF_SIGNALS |
|
|
|
|
BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS;
|
|
|
|
|
|
|
|
spin_lock_init(&drvr->fws_spinlock);
|
|
|
|
|
|
|
|
drvr->fws = kzalloc(sizeof(*(drvr->fws)), GFP_KERNEL);
|
|
|
|
if (!drvr->fws) {
|
|
|
|
rc = -ENOMEM;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* set linkage back */
|
|
|
|
drvr->fws->drvr = drvr;
|
|
|
|
drvr->fws->fcmode = fcmode;
|
|
|
|
|
|
|
|
/* enable proptxtstatus signaling by default */
|
|
|
|
rc = brcmf_fil_iovar_int_set(drvr->iflist[0], "tlv", tlv);
|
|
|
|
if (rc < 0) {
|
|
|
|
brcmf_err("failed to set bdcv2 tlv signaling\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (brcmf_fweh_register(drvr, BRCMF_E_FIFO_CREDIT_MAP,
|
|
|
|
brcmf_fws_notify_credit_map)) {
|
|
|
|
brcmf_err("register credit map handler failed\n");
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
brcmf_fws_hanger_init(&drvr->fws->hanger);
|
|
|
|
|
|
|
|
/* create debugfs file for statistics */
|
|
|
|
brcmf_debugfs_create_fws_stats(drvr, &drvr->fws->stats);
|
|
|
|
|
|
|
|
/* TODO: remove upon feature delivery */
|
|
|
|
brcmf_err("%s bdcv2 tlv signaling [%x]\n",
|
|
|
|
drvr->fw_signals ? "enabled" : "disabled", tlv);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail:
|
|
|
|
/* disable flow control entirely */
|
|
|
|
drvr->fw_signals = false;
|
|
|
|
brcmf_fws_deinit(drvr);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
void brcmf_fws_deinit(struct brcmf_pub *drvr)
|
|
|
|
{
|
|
|
|
struct brcmf_fws_info *fws = drvr->fws;
|
|
|
|
ulong flags;
|
|
|
|
|
|
|
|
/* cleanup */
|
|
|
|
brcmf_fws_lock(drvr, flags);
|
|
|
|
brcmf_fws_cleanup(fws, -1);
|
|
|
|
drvr->fws = NULL;
|
|
|
|
brcmf_fws_unlock(drvr, flags);
|
|
|
|
|
|
|
|
/* free top structure */
|
|
|
|
kfree(fws);
|
|
|
|
}
|
|
|
|
|
2013-04-03 18:40:39 +08:00
|
|
|
bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
|
|
|
|
{
|
|
|
|
if (!fws)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
brcmf_dbg(TRACE, "enter: mode=%d\n", fws->fcmode);
|
|
|
|
return fws->fcmode != BRCMF_FWS_FCMODE_NONE;
|
|
|
|
}
|
2013-04-03 18:40:41 +08:00
|
|
|
|
|
|
|
void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
|
|
|
|
{
|
|
|
|
ulong flags;
|
|
|
|
|
|
|
|
brcmf_fws_lock(fws->drvr, flags);
|
|
|
|
brcmf_fws_txstatus_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
|
|
|
|
brcmf_skb_htod_tag_get_field(skb, HSLOT));
|
|
|
|
brcmf_fws_unlock(fws->drvr, flags);
|
|
|
|
}
|