From 7bd6e89c6d756bfe4cd6183bbd511b6700ab443a Mon Sep 17 00:00:00 2001 From: Roland Vossen Date: Thu, 1 Sep 2011 11:16:53 +0200 Subject: [PATCH] staging: brcm80211: removed static function declarations in ampdu.c Reported-by: Johannes Berg Signed-off-by: Roland Vossen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/brcm80211/brcmsmac/ampdu.c | 299 ++++++++++++++--------------- 1 file changed, 140 insertions(+), 159 deletions(-) diff --git a/drivers/staging/brcm80211/brcmsmac/ampdu.c b/drivers/staging/brcm80211/brcmsmac/ampdu.c index 6fc1591..318235d 100644 --- a/drivers/staging/brcm80211/brcmsmac/ampdu.c +++ b/drivers/staging/brcm80211/brcmsmac/ampdu.c @@ -60,6 +60,8 @@ * accumulate between resets. */ +#define SHORTNAME "AMPDU status" + #define TX_SEQ_TO_INDEX(seq) ((seq) % AMPDU_TX_BA_MAX_WSIZE) /* max possible overhead per mpdu in the ampdu; 3 is for roundup if needed */ @@ -148,26 +150,77 @@ struct cb_del_ampdu_pars { #define SCB_AMPDU_CUBBY(ampdu, scb) (&(scb->scb_ampdu)) #define SCB_AMPDU_INI(scb_ampdu, tid) (&(scb_ampdu->ini[tid])) -static void brcms_c_ffpld_init(struct ampdu_info *ampdu); -static int brcms_c_ffpld_check_txfunfl(struct brcms_c_info *wlc, int f); -static void brcms_c_ffpld_calc_mcs2ampdu_table(struct ampdu_info *ampdu, int f); +#define brcms_c_ampdu_txflowcontrol(a, b, c) do {} while (0) -static void brcms_c_scb_ampdu_update_max_txlen(struct ampdu_info *ampdu, - u8 dur); -static void brcms_c_scb_ampdu_update_config(struct ampdu_info *ampdu, - struct scb *scb); -static void brcms_c_scb_ampdu_update_config_all(struct ampdu_info *ampdu); +static void brcms_c_scb_ampdu_update_max_txlen(struct ampdu_info *ampdu, u8 dur) +{ + u32 rate, mcs; -#define brcms_c_ampdu_txflowcontrol(a, b, c) do {} while (0) + for (mcs = 0; mcs < MCS_TABLE_SIZE; mcs++) { + /* rate is in Kbps; dur is in msec ==> len = (rate * dur) / 8 */ + /* 20MHz, No SGI */ + rate = MCS_RATE(mcs, false, false); + ampdu->max_txlen[mcs][0][0] = (rate * dur) >> 3; + /* 40 MHz, No SGI */ + rate = MCS_RATE(mcs, true, false); + ampdu->max_txlen[mcs][1][0] = (rate * dur) >> 3; + /* 20MHz, SGI */ + rate = MCS_RATE(mcs, false, true); + ampdu->max_txlen[mcs][0][1] = (rate * dur) >> 3; + /* 40 MHz, SGI */ + rate = MCS_RATE(mcs, true, true); + ampdu->max_txlen[mcs][1][1] = (rate * dur) >> 3; + } +} -static void -brcms_c_ampdu_dotxstatus_complete(struct ampdu_info *ampdu, - struct scb *scb, - struct sk_buff *p, struct tx_status *txs, - u32 frmtxstatus, u32 frmtxstatus2); +static bool brcms_c_ampdu_cap(struct ampdu_info *ampdu) +{ + if (BRCMS_PHY_11N_CAP(ampdu->wlc->band)) + return true; + else + return false; +} + +static int brcms_c_ampdu_set(struct ampdu_info *ampdu, bool on) +{ + struct brcms_c_info *wlc = ampdu->wlc; -static bool brcms_c_ampdu_cap(struct ampdu_info *ampdu); -static int brcms_c_ampdu_set(struct ampdu_info *ampdu, bool on); + wlc->pub->_ampdu = false; + + if (on) { + if (!N_ENAB(wlc->pub)) { + wiphy_err(ampdu->wlc->wiphy, "wl%d: driver not " + "nmode enabled\n", wlc->pub->unit); + return -ENOTSUPP; + } + if (!brcms_c_ampdu_cap(ampdu)) { + wiphy_err(ampdu->wlc->wiphy, "wl%d: device not " + "ampdu capable\n", wlc->pub->unit); + return -ENOTSUPP; + } + wlc->pub->_ampdu = on; + } + + return 0; +} + +static void brcms_c_ffpld_init(struct ampdu_info *ampdu) +{ + int i, j; + struct brcms_fifo_info *fifo; + + for (j = 0; j < NUM_FFPLD_FIFO; j++) { + fifo = (ampdu->fifo_tb + j); + fifo->ampdu_pld_size = 0; + for (i = 0; i <= FFPLD_MAX_MCS; i++) + fifo->mcs2ampdu_table[i] = 255; + fifo->dmaxferrate = 0; + fifo->accum_txampdu = 0; + fifo->prev_txfunfl = 0; + fifo->accum_txfunfl = 0; + + } +} struct ampdu_info *brcms_c_ampdu_attach(struct brcms_c_info *wlc) { @@ -267,21 +320,35 @@ static void brcms_c_scb_ampdu_update_config_all(struct ampdu_info *ampdu) brcms_c_scb_ampdu_update_config(ampdu, ampdu->wlc->pub->global_scb); } -static void brcms_c_ffpld_init(struct ampdu_info *ampdu) +static void brcms_c_ffpld_calc_mcs2ampdu_table(struct ampdu_info *ampdu, int f) { - int i, j; - struct brcms_fifo_info *fifo; + int i; + u32 phy_rate, dma_rate, tmp; + u8 max_mpdu; + struct brcms_fifo_info *fifo = (ampdu->fifo_tb + f); - for (j = 0; j < NUM_FFPLD_FIFO; j++) { - fifo = (ampdu->fifo_tb + j); - fifo->ampdu_pld_size = 0; - for (i = 0; i <= FFPLD_MAX_MCS; i++) - fifo->mcs2ampdu_table[i] = 255; - fifo->dmaxferrate = 0; - fifo->accum_txampdu = 0; - fifo->prev_txfunfl = 0; - fifo->accum_txfunfl = 0; + /* recompute the dma rate */ + /* note : we divide/multiply by 100 to avoid integer overflows */ + max_mpdu = min_t(u8, fifo->mcs2ampdu_table[FFPLD_MAX_MCS], + AMPDU_NUM_MPDU_LEGACY); + phy_rate = MCS_RATE(FFPLD_MAX_MCS, true, false); + dma_rate = + (((phy_rate / 100) * + (max_mpdu * FFPLD_MPDU_SIZE - fifo->ampdu_pld_size)) + / (max_mpdu * FFPLD_MPDU_SIZE)) * 100; + fifo->dmaxferrate = dma_rate; + /* fill up the mcs2ampdu table; do not recalc the last mcs */ + dma_rate = dma_rate >> 7; + for (i = 0; i < FFPLD_MAX_MCS; i++) { + /* shifting to keep it within integer range */ + phy_rate = MCS_RATE(i, true, false) >> 7; + if (phy_rate > dma_rate) { + tmp = ((fifo->ampdu_pld_size * phy_rate) / + ((phy_rate - dma_rate) * FFPLD_MPDU_SIZE)) + 1; + tmp = min_t(u32, tmp, 255); + fifo->mcs2ampdu_table[i] = (u8) tmp; + } } } @@ -410,38 +477,6 @@ static int brcms_c_ffpld_check_txfunfl(struct brcms_c_info *wlc, int fid) return 0; } -static void brcms_c_ffpld_calc_mcs2ampdu_table(struct ampdu_info *ampdu, int f) -{ - int i; - u32 phy_rate, dma_rate, tmp; - u8 max_mpdu; - struct brcms_fifo_info *fifo = (ampdu->fifo_tb + f); - - /* recompute the dma rate */ - /* note : we divide/multiply by 100 to avoid integer overflows */ - max_mpdu = min_t(u8, fifo->mcs2ampdu_table[FFPLD_MAX_MCS], - AMPDU_NUM_MPDU_LEGACY); - phy_rate = MCS_RATE(FFPLD_MAX_MCS, true, false); - dma_rate = - (((phy_rate / 100) * - (max_mpdu * FFPLD_MPDU_SIZE - fifo->ampdu_pld_size)) - / (max_mpdu * FFPLD_MPDU_SIZE)) * 100; - fifo->dmaxferrate = dma_rate; - - /* fill up the mcs2ampdu table; do not recalc the last mcs */ - dma_rate = dma_rate >> 7; - for (i = 0; i < FFPLD_MAX_MCS; i++) { - /* shifting to keep it within integer range */ - phy_rate = MCS_RATE(i, true, false) >> 7; - if (phy_rate > dma_rate) { - tmp = ((fifo->ampdu_pld_size * phy_rate) / - ((phy_rate - dma_rate) * FFPLD_MPDU_SIZE)) + 1; - tmp = min_t(u32, tmp, 255); - fifo->mcs2ampdu_table[i] = (u8) tmp; - } - } -} - void brcms_c_ampdu_tx_operational(struct brcms_c_info *wlc, u8 tid, u8 ba_wsize, /* negotiated ba window size (in pdu) */ @@ -846,61 +881,6 @@ brcms_c_sendampdu(struct ampdu_info *ampdu, struct brcms_txq_info *qi, return err; } -void -brcms_c_ampdu_dotxstatus(struct ampdu_info *ampdu, struct scb *scb, - struct sk_buff *p, struct tx_status *txs) -{ - struct scb_ampdu *scb_ampdu; - struct brcms_c_info *wlc = ampdu->wlc; - struct scb_ampdu_tid_ini *ini; - u32 s1 = 0, s2 = 0; - struct ieee80211_tx_info *tx_info; - - tx_info = IEEE80211_SKB_CB(p); - - /* BMAC_NOTE: For the split driver, second level txstatus comes later - * So if the ACK was received then wait for the second level else just - * call the first one - */ - if (txs->status & TX_STATUS_ACK_RCV) { - u8 status_delay = 0; - - /* wait till the next 8 bytes of txstatus is available */ - while (((s1 = R_REG(&wlc->regs->frmtxstatus)) & TXS_V) == 0) { - udelay(1); - status_delay++; - if (status_delay > 10) - return; /* error condition */ - } - - s2 = R_REG(&wlc->regs->frmtxstatus2); - } - - if (likely(scb)) { - scb_ampdu = SCB_AMPDU_CUBBY(ampdu, scb); - ini = SCB_AMPDU_INI(scb_ampdu, p->priority); - brcms_c_ampdu_dotxstatus_complete(ampdu, scb, p, txs, s1, s2); - } else { - /* loop through all pkts and free */ - u8 queue = txs->frameid & TXFID_QUEUE_MASK; - struct d11txh *txh; - u16 mcl; - while (p) { - tx_info = IEEE80211_SKB_CB(p); - txh = (struct d11txh *) p->data; - mcl = le16_to_cpu(txh->MacTxControlLow); - brcmu_pkt_buf_free_skb(p); - /* break out if last packet of ampdu */ - if (((mcl & TXC_AMPDU_MASK) >> TXC_AMPDU_SHIFT) == - TXC_AMPDU_LAST) - break; - p = GETNEXTTXP(wlc, queue); - } - brcms_c_txfifo_complete(wlc, queue, ampdu->txpkt_weight); - } - brcms_c_ampdu_txflowcontrol(wlc, scb_ampdu, ini); -} - static void brcms_c_ampdu_rate_status(struct brcms_c_info *wlc, struct ieee80211_tx_info *tx_info, @@ -916,8 +896,6 @@ brcms_c_ampdu_rate_status(struct brcms_c_info *wlc, } } -#define SHORTNAME "AMPDU status" - static void brcms_c_ampdu_dotxstatus_complete(struct ampdu_info *ampdu, struct scb *scb, struct sk_buff *p, struct tx_status *txs, @@ -1125,56 +1103,59 @@ brcms_c_ampdu_dotxstatus_complete(struct ampdu_info *ampdu, struct scb *scb, brcms_c_txfifo_complete(wlc, queue, ampdu->txpkt_weight); } -static int brcms_c_ampdu_set(struct ampdu_info *ampdu, bool on) +void +brcms_c_ampdu_dotxstatus(struct ampdu_info *ampdu, struct scb *scb, + struct sk_buff *p, struct tx_status *txs) { + struct scb_ampdu *scb_ampdu; struct brcms_c_info *wlc = ampdu->wlc; + struct scb_ampdu_tid_ini *ini; + u32 s1 = 0, s2 = 0; + struct ieee80211_tx_info *tx_info; - wlc->pub->_ampdu = false; - - if (on) { - if (!N_ENAB(wlc->pub)) { - wiphy_err(ampdu->wlc->wiphy, "wl%d: driver not " - "nmode enabled\n", wlc->pub->unit); - return -ENOTSUPP; - } - if (!brcms_c_ampdu_cap(ampdu)) { - wiphy_err(ampdu->wlc->wiphy, "wl%d: device not " - "ampdu capable\n", wlc->pub->unit); - return -ENOTSUPP; - } - wlc->pub->_ampdu = on; - } + tx_info = IEEE80211_SKB_CB(p); - return 0; -} + /* BMAC_NOTE: For the split driver, second level txstatus comes later + * So if the ACK was received then wait for the second level else just + * call the first one + */ + if (txs->status & TX_STATUS_ACK_RCV) { + u8 status_delay = 0; -static bool brcms_c_ampdu_cap(struct ampdu_info *ampdu) -{ - if (BRCMS_PHY_11N_CAP(ampdu->wlc->band)) - return true; - else - return false; -} + /* wait till the next 8 bytes of txstatus is available */ + while (((s1 = R_REG(&wlc->regs->frmtxstatus)) & TXS_V) == 0) { + udelay(1); + status_delay++; + if (status_delay > 10) + return; /* error condition */ + } -static void brcms_c_scb_ampdu_update_max_txlen(struct ampdu_info *ampdu, u8 dur) -{ - u32 rate, mcs; + s2 = R_REG(&wlc->regs->frmtxstatus2); + } - for (mcs = 0; mcs < MCS_TABLE_SIZE; mcs++) { - /* rate is in Kbps; dur is in msec ==> len = (rate * dur) / 8 */ - /* 20MHz, No SGI */ - rate = MCS_RATE(mcs, false, false); - ampdu->max_txlen[mcs][0][0] = (rate * dur) >> 3; - /* 40 MHz, No SGI */ - rate = MCS_RATE(mcs, true, false); - ampdu->max_txlen[mcs][1][0] = (rate * dur) >> 3; - /* 20MHz, SGI */ - rate = MCS_RATE(mcs, false, true); - ampdu->max_txlen[mcs][0][1] = (rate * dur) >> 3; - /* 40 MHz, SGI */ - rate = MCS_RATE(mcs, true, true); - ampdu->max_txlen[mcs][1][1] = (rate * dur) >> 3; + if (likely(scb)) { + scb_ampdu = SCB_AMPDU_CUBBY(ampdu, scb); + ini = SCB_AMPDU_INI(scb_ampdu, p->priority); + brcms_c_ampdu_dotxstatus_complete(ampdu, scb, p, txs, s1, s2); + } else { + /* loop through all pkts and free */ + u8 queue = txs->frameid & TXFID_QUEUE_MASK; + struct d11txh *txh; + u16 mcl; + while (p) { + tx_info = IEEE80211_SKB_CB(p); + txh = (struct d11txh *) p->data; + mcl = le16_to_cpu(txh->MacTxControlLow); + brcmu_pkt_buf_free_skb(p); + /* break out if last packet of ampdu */ + if (((mcl & TXC_AMPDU_MASK) >> TXC_AMPDU_SHIFT) == + TXC_AMPDU_LAST) + break; + p = GETNEXTTXP(wlc, queue); + } + brcms_c_txfifo_complete(wlc, queue, ampdu->txpkt_weight); } + brcms_c_ampdu_txflowcontrol(wlc, scb_ampdu, ini); } void brcms_c_ampdu_macaddr_upd(struct brcms_c_info *wlc) -- 2.7.4