From bb8c8063f82ce3eb7b44772202ca944f92ac39f5 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Wed, 3 Apr 2013 12:40:30 +0200 Subject: [PATCH] brcmfmac: hookup firmware signalling to firmware interface events Firmware signalling needs to handle resources upon interface events. This patch add calls in the interface event handling routine. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Hante Meuleman Reviewed-by: Piotr Haber Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/dhd.h | 7 +- .../wireless/brcm80211/brcmfmac/dhd_linux.c | 10 +- .../net/wireless/brcm80211/brcmfmac/fweh.c | 10 +- .../wireless/brcm80211/brcmfmac/fwsignal.c | 177 ++++++++++++------ .../wireless/brcm80211/brcmfmac/fwsignal.h | 5 + 5 files changed, 148 insertions(+), 61 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h index b4b970038799..64006edeb430 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h @@ -550,8 +550,9 @@ struct brcmf_if_event { u8 bssidx; }; -/* forward declaration */ +/* forward declarations */ struct brcmf_cfg80211_vif; +struct brcmf_fws_mac_descriptor; /** * struct brcmf_if - interface control information. @@ -560,6 +561,9 @@ struct brcmf_cfg80211_vif; * @vif: points to cfg80211 specific interface information. * @ndev: associated network device. * @stats: interface specific network statistics. + * @setmacaddr_work: worker object for setting mac address. + * @multicast_work: worker object for multicast provisioning. + * @fws_desc: interface specific firmware-signalling descriptor. * @ifidx: interface index in device firmware. * @bssidx: index of bss associated with this interface. * @mac_addr: assigned mac address. @@ -573,6 +577,7 @@ struct brcmf_if { struct net_device_stats stats; struct work_struct setmacaddr_work; struct work_struct multicast_work; + struct brcmf_fws_mac_descriptor *fws_desc; int ifidx; s32 bssidx; u8 mac_addr[ETH_ALEN]; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c index fa5a2af04d46..a08db02537fc 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c @@ -755,7 +755,6 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx, ifp->ifidx = ifidx; ifp->bssidx = bssidx; - init_waitqueue_head(&ifp->pend_8021x_wait); if (mac_addr != NULL) @@ -882,6 +881,7 @@ int brcmf_bus_start(struct device *dev) drvr->fw_signals = true; (void)brcmf_fws_init(drvr); + brcmf_fws_add_interface(ifp); drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev); if (drvr->config == NULL) { @@ -899,8 +899,10 @@ fail: brcmf_err("failed: %d\n", ret); if (drvr->config) brcmf_cfg80211_detach(drvr->config); - if (drvr->fws) + if (drvr->fws) { + brcmf_fws_del_interface(ifp); brcmf_fws_deinit(drvr); + } free_netdev(ifp->ndev); drvr->iflist[0] = NULL; if (p2p_ifp) { @@ -956,8 +958,10 @@ void brcmf_detach(struct device *dev) /* make sure primary interface removed last */ for (i = BRCMF_MAX_IFS-1; i > -1; i--) - if (drvr->iflist[i]) + if (drvr->iflist[i]) { + brcmf_fws_del_interface(drvr->iflist[i]); brcmf_del_if(drvr, i); + } brcmf_bus_detach(drvr); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c index e9d6f91a1f2b..dad94147b6b5 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c @@ -20,6 +20,7 @@ #include "dhd.h" #include "dhd_dbg.h" +#include "fwsignal.h" #include "fweh.h" #include "fwil.h" @@ -198,15 +199,20 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr, emsg->ifname, emsg->addr); if (IS_ERR(ifp)) return; - + brcmf_fws_add_interface(ifp); if (!drvr->fweh.evt_handler[BRCMF_E_IF]) err = brcmf_net_attach(ifp, false); } + if (ifevent->action == BRCMF_E_IF_CHANGE) + brcmf_fws_reset_interface(ifp); + err = brcmf_fweh_call_event_handler(ifp, emsg->event_code, emsg, data); - if (ifevent->action == BRCMF_E_IF_DEL) + if (ifevent->action == BRCMF_E_IF_DEL) { + brcmf_fws_del_interface(ifp); brcmf_del_if(drvr, ifevent->bssidx); + } } /** diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index 071d55f9cd4d..7ceaceba1845 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -73,16 +73,6 @@ enum brcmf_fws_tlv_type { }; #undef BRCMF_FWS_TLV_DEF -/** - * enum brcmf_fws_tlv_len - length values for tlvs. - */ -#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. @@ -117,33 +107,57 @@ static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id) /** * 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_HANGER_MAXITEMS 1024 -#define BRCMF_FWS_HANGER_ITEM_STATE_FREE 1 -#define BRCMF_FWS_HANGER_ITEM_STATE_INUSE 2 -#define BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED 3 - -#define BRCMF_FWS_STATE_OPEN 1 +#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_HANGER_MAXITEMS 1024 +#define BRCMF_FWS_HANGER_ITEM_STATE_FREE 1 +#define BRCMF_FWS_HANGER_ITEM_STATE_INUSE 2 +#define BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED 3 + +#define BRCMF_FWS_STATE_OPEN 1 #define BRCMF_FWS_STATE_CLOSE 2 #define BRCMF_FWS_FCMODE_NONE 0 #define BRCMF_FWS_FCMODE_IMPLIED_CREDIT 1 -#define BRCMF_FWS_FCMODE_EXPLICIT_CREDIT 2 +#define BRCMF_FWS_FCMODE_EXPLICIT_CREDIT 2 #define BRCMF_FWS_MAC_DESC_TABLE_SIZE 32 -#define BRCMF_FWS_MAX_IFNUM 16 +#define BRCMF_FWS_MAX_IFNUM 16 #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_PSQ_PREC_COUNT ((NL80211_NUM_ACS + 1) * 2) +#define BRCMF_FWS_PSQ_LEN 256 + +/** + * struct brcmf_fws_mac_descriptor - firmware signalling data per node/interface + * + * @occupied: slot is in use. + * @interface_id: interface index. + * @state: current state. + * @ac_bitmap: ac queue bitmap. + * @requested_credit: credits requested by firmware. + * @ea: ethernet address. + * @psq: power-save queue. + */ +struct brcmf_fws_mac_descriptor { + u8 occupied; + u8 interface_id; + u8 state; + u8 ac_bitmap; + u8 requested_credit; + u8 ea[ETH_ALEN]; + struct pktq psq; +}; + /** * FWFC packet identifier * @@ -182,6 +196,27 @@ struct brcmf_fws_info { struct brcmf_fws_stats stats; }; +/** + * brcmf_fws_get_tlv_len() - returns defined length for given tlv id. + */ +#define BRCMF_FWS_TLV_DEF(name, id, len) \ + case BRCMF_FWS_TYPE_ ## name: \ + return len; + +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: + brcmf_err("invalid tlv id: %d\n", id); + fws->stats.tlv_invalid_type++; + break; + } + return -EINVAL; +} +#undef BRCMF_FWS_TLV_DEF + static int brcmf_fws_rssi_indicate(struct brcmf_fws_info *fws, s8 rssi) { brcmf_dbg(CTL, "rssi %d\n", rssi); @@ -308,53 +343,33 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, if (data_len < len + 2) break; + if (len != brcmf_fws_get_tlv_len(fws, type)) + break; + brcmf_dbg(INFO, "tlv type=%d (%s), len=%d\n", type, brcmf_fws_get_tlv_name(type), len); switch (type) { case BRCMF_FWS_TYPE_MAC_OPEN: case BRCMF_FWS_TYPE_MAC_CLOSE: - WARN_ON(len != BRCMF_FWS_TYPE_MAC_OPEN_LEN); - break; case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT: - WARN_ON(len != BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT_LEN); - break; case BRCMF_FWS_TYPE_TXSTATUS: - WARN_ON(len != BRCMF_FWS_TYPE_TXSTATUS_LEN); - break; case BRCMF_FWS_TYPE_PKTTAG: - WARN_ON(len != BRCMF_FWS_TYPE_PKTTAG_LEN); - break; - case BRCMF_FWS_TYPE_MACDESC_ADD: - case BRCMF_FWS_TYPE_MACDESC_DEL: - WARN_ON(len != BRCMF_FWS_TYPE_MACDESC_ADD_LEN); - break; - case BRCMF_FWS_TYPE_RSSI: - WARN_ON(len != BRCMF_FWS_TYPE_RSSI_LEN); - brcmf_fws_rssi_indicate(fws, *(s8 *)data); - break; case BRCMF_FWS_TYPE_INTERFACE_OPEN: case BRCMF_FWS_TYPE_INTERFACE_CLOSE: - WARN_ON(len != BRCMF_FWS_TYPE_INTERFACE_OPEN_LEN); - break; case BRCMF_FWS_TYPE_FIFO_CREDITBACK: - WARN_ON(len != BRCMF_FWS_TYPE_FIFO_CREDITBACK_LEN); - break; case BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP: - WARN_ON(len != BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN); - break; case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET: - WARN_ON(len != BRCMF_FWS_TYPE_MAC_REQUEST_PACKET_LEN); - break; case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS: - WARN_ON(len != BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS_LEN); + case BRCMF_FWS_TYPE_COMP_TXSTATUS: + case BRCMF_FWS_TYPE_MACDESC_ADD: + case BRCMF_FWS_TYPE_MACDESC_DEL: + break; + case BRCMF_FWS_TYPE_RSSI: + brcmf_fws_rssi_indicate(fws, *data); break; case BRCMF_FWS_TYPE_TRANS_ID: - WARN_ON(len != BRCMF_FWS_TYPE_TRANS_ID_LEN); brcmf_fws_dbg_seqnum_check(fws, data); break; - case BRCMF_FWS_TYPE_COMP_TXSTATUS: - WARN_ON(len != BRCMF_FWS_TYPE_COMP_TXSTATUS_LEN); - break; default: fws->stats.tlv_invalid_type++; break; @@ -380,3 +395,55 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, brcmf_fws_unlock(drvr, flags); return 0; } + +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; + + entry->occupied = 1; + entry->state = BRCMF_FWS_STATE_OPEN; + entry->requested_credit = 0; + /* depending on use may need ifp->bssidx instead */ + entry->interface_id = ifp->ifidx; + entry->ac_bitmap = 0xff; /* update this when handling APSD */ + memcpy(&entry->ea[0], ifp->mac_addr, ETH_ALEN); +} + +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; + brcmf_fws_reset_interface(ifp); + 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; + entry->occupied = 0; + entry->state = BRCMF_FWS_STATE_CLOSE; + entry->requested_credit = 0; + kfree(entry); +} diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h index e728eea72bb4..38a75e494d7d 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h @@ -22,4 +22,9 @@ int brcmf_fws_init(struct brcmf_pub *drvr); void brcmf_fws_deinit(struct brcmf_pub *drvr); int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, struct sk_buff *skb); + +void brcmf_fws_reset_interface(struct brcmf_if *ifp); +void brcmf_fws_add_interface(struct brcmf_if *ifp); +void brcmf_fws_del_interface(struct brcmf_if *ifp); + #endif /* FWSIGNAL_H_ */ -- 2.20.1