diff options
Diffstat (limited to 'drivers/net/wireless')
6 files changed, 213 insertions, 33 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index f2f84af923a9..537e5ae35ca0 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -23,6 +23,7 @@ #include "p2p.h" #include "btcoex.h" #include "pno.h" +#include "fwsignal.h" #include "cfg80211.h" #include "feature.h" #include "fwil.h" @@ -5586,12 +5587,151 @@ static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg) conn_info->resp_ie_len = 0; } +u8 brcmf_map_prio_to_prec(void *config, u8 prio) +{ + struct brcmf_cfg80211_info *cfg = (struct brcmf_cfg80211_info *)config; + + if (!cfg) + return (prio == PRIO_8021D_NONE || prio == PRIO_8021D_BE) ? + (prio ^ 2) : prio; + + /* For those AC(s) with ACM flag set to 1, convert its 4-level priority + * to an 8-level precedence which is the same as BE's + */ + if (prio > PRIO_8021D_EE && + cfg->ac_priority[prio] == cfg->ac_priority[PRIO_8021D_BE]) + return cfg->ac_priority[prio] * 2; + + /* Conversion of 4-level priority to 8-level precedence */ + if (prio == PRIO_8021D_BE || prio == PRIO_8021D_BK || + prio == PRIO_8021D_CL || prio == PRIO_8021D_VO) + return cfg->ac_priority[prio] * 2; + else + return cfg->ac_priority[prio] * 2 + 1; +} + +u8 brcmf_map_prio_to_aci(void *config, u8 prio) +{ + /* Prio here refers to the 802.1d priority in range of 0 to 7. + * ACI here refers to the WLAN AC Index in range of 0 to 3. + * This function will return ACI corresponding to input prio. + */ + struct brcmf_cfg80211_info *cfg = (struct brcmf_cfg80211_info *)config; + + if (cfg) + return cfg->ac_priority[prio]; + + return prio; +} + +static void brcmf_init_wmm_prio(u8 *priority) +{ + /* Initialize AC priority array to default + * 802.1d priority as per following table: + * 802.1d prio 0,3 maps to BE + * 802.1d prio 1,2 maps to BK + * 802.1d prio 4,5 maps to VI + * 802.1d prio 6,7 maps to VO + */ + priority[0] = BRCMF_FWS_FIFO_AC_BE; + priority[3] = BRCMF_FWS_FIFO_AC_BE; + priority[1] = BRCMF_FWS_FIFO_AC_BK; + priority[2] = BRCMF_FWS_FIFO_AC_BK; + priority[4] = BRCMF_FWS_FIFO_AC_VI; + priority[5] = BRCMF_FWS_FIFO_AC_VI; + priority[6] = BRCMF_FWS_FIFO_AC_VO; + priority[7] = BRCMF_FWS_FIFO_AC_VO; +} + +static void brcmf_wifi_prioritize_acparams(const + struct brcmf_cfg80211_edcf_acparam *acp, u8 *priority) +{ + u8 aci; + u8 aifsn; + u8 ecwmin; + u8 ecwmax; + u8 acm; + u8 ranking_basis[EDCF_AC_COUNT]; + u8 aci_prio[EDCF_AC_COUNT]; /* AC_BE, AC_BK, AC_VI, AC_VO */ + u8 index; + + for (aci = 0; aci < EDCF_AC_COUNT; aci++, acp++) { + aifsn = acp->ACI & EDCF_AIFSN_MASK; + acm = (acp->ACI & EDCF_ACM_MASK) ? 1 : 0; + ecwmin = acp->ECW & EDCF_ECWMIN_MASK; + ecwmax = (acp->ECW & EDCF_ECWMAX_MASK) >> EDCF_ECWMAX_SHIFT; + brcmf_dbg(CONN, "ACI %d aifsn %d acm %d ecwmin %d ecwmax %d\n", + aci, aifsn, acm, ecwmin, ecwmax); + /* Default AC_VO will be the lowest ranking value */ + ranking_basis[aci] = aifsn + ecwmin + ecwmax; + /* Initialise priority starting at 0 (AC_BE) */ + aci_prio[aci] = 0; + + /* If ACM is set, STA can't use this AC as per 802.11. + * Change the ranking to BE + */ + if (aci != AC_BE && aci != AC_BK && acm == 1) + ranking_basis[aci] = ranking_basis[AC_BE]; + } + + /* Ranking method which works for AC priority + * swapping when values for cwmin, cwmax and aifsn are varied + * Compare each aci_prio against each other aci_prio + */ + for (aci = 0; aci < EDCF_AC_COUNT; aci++) { + for (index = 0; index < EDCF_AC_COUNT; index++) { + if (index != aci) { + /* Smaller ranking value has higher priority, + * so increment priority for each ACI which has + * a higher ranking value + */ + if (ranking_basis[aci] < ranking_basis[index]) + aci_prio[aci]++; + } + } + } + + /* By now, aci_prio[] will be in range of 0 to 3. + * Use ACI prio to get the new priority value for + * each 802.1d traffic type, in this range. + */ + if (!(aci_prio[AC_BE] == aci_prio[AC_BK] && + aci_prio[AC_BK] == aci_prio[AC_VI] && + aci_prio[AC_VI] == aci_prio[AC_VO])) { + /* 802.1d 0,3 maps to BE */ + priority[0] = aci_prio[AC_BE]; + priority[3] = aci_prio[AC_BE]; + + /* 802.1d 1,2 maps to BK */ + priority[1] = aci_prio[AC_BK]; + priority[2] = aci_prio[AC_BK]; + + /* 802.1d 4,5 maps to VO */ + priority[4] = aci_prio[AC_VI]; + priority[5] = aci_prio[AC_VI]; + + /* 802.1d 6,7 maps to VO */ + priority[6] = aci_prio[AC_VO]; + priority[7] = aci_prio[AC_VO]; + } else { + /* Initialize to default priority */ + brcmf_init_wmm_prio(priority); + } + + brcmf_dbg(CONN, "Adj prio BE 0->%d, BK 1->%d, BK 2->%d, BE 3->%d\n", + priority[0], priority[1], priority[2], priority[3]); + + brcmf_dbg(CONN, "Adj prio VI 4->%d, VI 5->%d, VO 6->%d, VO 7->%d\n", + priority[4], priority[5], priority[6], priority[7]); +} + static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp) { struct brcmf_pub *drvr = cfg->pub; struct brcmf_cfg80211_assoc_ielen_le *assoc_info; struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); + struct brcmf_cfg80211_edcf_acparam edcf_acparam_info[EDCF_AC_COUNT]; u32 req_len; u32 resp_len; s32 err = 0; @@ -5640,6 +5780,17 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, GFP_KERNEL); if (!conn_info->resp_ie) conn_info->resp_ie_len = 0; + + err = brcmf_fil_iovar_data_get(ifp, "wme_ac_sta", + edcf_acparam_info, + sizeof(edcf_acparam_info)); + if (err) { + brcmf_err("could not get wme_ac_sta (%d)\n", err); + return err; + } + + brcmf_wifi_prioritize_acparams(edcf_acparam_info, + cfg->ac_priority); } else { conn_info->resp_ie_len = 0; conn_info->resp_ie = NULL; @@ -6056,6 +6207,7 @@ static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg) mutex_init(&cfg->usr_sync); brcmf_init_escan(cfg); brcmf_init_conf(cfg->conf); + brcmf_init_wmm_prio(cfg->ac_priority); init_completion(&cfg->vif_disabled); return err; } diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h index 3ca8c07d6370..333fdf394f95 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h @@ -23,6 +23,23 @@ #define WL_ROAM_TRIGGER_LEVEL -75 #define WL_ROAM_DELTA 20 +/* WME Access Category Indices (ACIs) */ +#define AC_BE 0 /* Best Effort */ +#define AC_BK 1 /* Background */ +#define AC_VI 2 /* Video */ +#define AC_VO 3 /* Voice */ +#define EDCF_AC_COUNT 4 +#define MAX_8021D_PRIO 8 + +#define EDCF_ACI_MASK 0x60 +#define EDCF_ACI_SHIFT 5 +#define EDCF_ACM_MASK 0x10 +#define EDCF_ECWMIN_MASK 0x0f +#define EDCF_ECWMAX_SHIFT 4 +#define EDCF_AIFSN_MASK 0x0f +#define EDCF_AIFSN_MAX 15 +#define EDCF_ECWMAX_MASK 0xf0 + /* Keep BRCMF_ESCAN_BUF_SIZE below 64K (65536). Allocing over 64K can be * problematic on some systems and should be avoided. */ @@ -209,6 +226,12 @@ struct brcmf_cfg80211_assoc_ielen_le { __le32 resp_len; }; +struct brcmf_cfg80211_edcf_acparam { + u8 ACI; + u8 ECW; + u16 TXOP; /* stored in network order (ls octet first) */ +}; + /* dongle escan state */ enum wl_escan_state { WL_ESCAN_STATE_IDLE, @@ -327,6 +350,7 @@ struct brcmf_cfg80211_info { struct brcmf_assoclist_le assoclist; struct brcmf_cfg80211_wowl wowl; struct brcmf_pno_info *pno; + u8 ac_priority[MAX_8021D_PRIO]; }; /** diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h index 144cf4570bc3..8b5f49997c8b 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h @@ -72,4 +72,8 @@ static inline void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev) {} #endif +u8 brcmf_map_prio_to_prec(void *cfg, u8 prio); + +u8 brcmf_map_prio_to_aci(void *cfg, u8 prio); + #endif /* BRCMFMAC_COMMON_H */ diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c index 2b7837887c0b..09701262330d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c @@ -311,28 +311,6 @@ struct brcmf_skbuff_cb { /* 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. @@ -2130,8 +2108,10 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb) skcb->if_flags = 0; skcb->state = BRCMF_FWS_SKBSTATE_NEW; brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx); + + /* mapping from 802.1d priority to firmware fifo index */ if (!multicast) - fifo = brcmf_fws_prio2fifo[skb->priority]; + fifo = brcmf_map_prio_to_aci(drvr->config, skb->priority); brcmf_fws_lock(fws); if (fifo != BRCMF_FWS_FIFO_AC_BE && fifo < BRCMF_FWS_FIFO_BCMC) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h index b486d578ec96..b16a9d1c0508 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h @@ -6,6 +6,29 @@ #ifndef FWSIGNAL_H_ #define FWSIGNAL_H_ +/** + * 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 +}; + struct brcmf_fws_info *brcmf_fws_attach(struct brcmf_pub *drvr); void brcmf_fws_detach(struct brcmf_fws_info *fws); void brcmf_fws_debugfs_create(struct brcmf_pub *drvr); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 3a08252f1a53..ce6f15284277 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -315,15 +315,6 @@ struct rte_console { #define MAX_KSO_ATTEMPTS (PMU_MAX_TRANSITION_DLY/KSO_WAIT_US) #define BRCMF_SDIO_MAX_ACCESS_ERRORS 5 -/* - * Conversion of 802.1D priority to precedence level - */ -static uint prio2prec(u32 prio) -{ - return (prio == PRIO_8021D_NONE || prio == PRIO_8021D_BE) ? - (prio^2) : prio; -} - #ifdef DEBUG /* Device console log buffer state */ struct brcmf_console { @@ -2774,7 +2765,13 @@ static int brcmf_sdio_bus_txdata(struct device *dev, struct sk_buff *pkt) skb_push(pkt, bus->tx_hdrlen); /* precondition: IS_ALIGNED((unsigned long)(pkt->data), 2) */ - prec = prio2prec((pkt->priority & PRIOMASK)); + /* In WLAN, priority is always set by the AP using WMM parameters + * and this need not always follow the standard 802.1d priority. + * Based on AP WMM config, map from 802.1d priority to corresponding + * precedence level. + */ + prec = brcmf_map_prio_to_prec(bus_if->drvr->config, + (pkt->priority & PRIOMASK)); /* Check for existing queue, current flow-control, pending event, or pending clock */ |