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Commit 7bd6e89c authored by Roland Vossen's avatar Roland Vossen Committed by Greg Kroah-Hartman
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staging: brcm80211: removed static function declarations in ampdu.c 

Reported-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarRoland Vossen <rvossen@broadcom.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent d2bac23d
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Inline Side-by-side
Showing with 140 additions and 159 deletions
drivers/staging/brcm80211/brcmsmac/ampdu.c
View file @ 7bd6e89c
......@@ -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)
......
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