Maintaining two sets of rate tables is redundant, remove one
and use struct ath_rate_table exclusively.
Signed-off-by: Sujith <[email protected]>
---
drivers/net/wireless/ath9k/ath9k.h | 26 +----
drivers/net/wireless/ath9k/beacon.c | 8 +-
drivers/net/wireless/ath9k/core.c | 52 ++--------
drivers/net/wireless/ath9k/core.h | 5 -
drivers/net/wireless/ath9k/hw.c | 190 +----------------------------------
drivers/net/wireless/ath9k/main.c | 2 +
drivers/net/wireless/ath9k/rc.c | 51 ++++++++-
drivers/net/wireless/ath9k/rc.h | 3 +
drivers/net/wireless/ath9k/recv.c | 6 +-
drivers/net/wireless/ath9k/xmit.c | 163 +++++++++++-------------------
10 files changed, 132 insertions(+), 374 deletions(-)
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index 6be2b94..c4012c8 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -401,22 +401,6 @@ enum ath9k_int {
ATH9K_INT_NOCARD = 0xffffffff
};
-struct ath9k_rate_table {
- int rateCount;
- u8 rateCodeToIndex[256];
- struct {
- u8 valid;
- u8 phy;
- u32 rateKbps;
- u8 rateCode;
- u8 shortPreamble;
- u8 dot11Rate;
- u8 controlRate;
- u16 lpAckDuration;
- u16 spAckDuration;
- } info[32];
-};
-
#define ATH9K_RATESERIES_RTS_CTS 0x0001
#define ATH9K_RATESERIES_2040 0x0002
#define ATH9K_RATESERIES_HALFGI 0x0004
@@ -828,6 +812,8 @@ struct chan_centers {
u16 ext_center;
};
+struct ath_rate_table;
+
/* Helpers */
enum wireless_mode ath9k_hw_chan2wmode(struct ath_hal *ah,
@@ -838,7 +824,7 @@ bool ath9k_get_channel_edges(struct ath_hal *ah,
u16 flags, u16 *low,
u16 *high);
u16 ath9k_hw_computetxtime(struct ath_hal *ah,
- const struct ath9k_rate_table *rates,
+ struct ath_rate_table *rates,
u32 frameLen, u16 rateix,
bool shortPreamble);
u32 ath9k_hw_mhz2ieee(struct ath_hal *ah, u32 freq, u32 flags);
@@ -883,12 +869,6 @@ void ath9k_hw_configpcipowersave(struct ath_hal *ah, int restore);
void ath9k_hw_beaconinit(struct ath_hal *ah, u32 next_beacon, u32 beacon_period);
void ath9k_hw_set_sta_beacon_timers(struct ath_hal *ah,
const struct ath9k_beacon_state *bs);
-
-/* Rate table */
-
-const struct ath9k_rate_table *ath9k_hw_getratetable(struct ath_hal *ah,
- u32 mode);
-
/* HW Capabilities */
bool ath9k_hw_fill_cap_info(struct ath_hal *ah);
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c
index d186cd4..dcf2383 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -68,7 +68,7 @@ static void ath_beacon_setup(struct ath_softc *sc,
struct ath_hal *ah = sc->sc_ah;
struct ath_desc *ds;
struct ath9k_11n_rate_series series[4];
- const struct ath9k_rate_table *rt;
+ struct ath_rate_table *rt;
int flags, antenna;
u8 rix, rate;
int ctsrate = 0;
@@ -106,10 +106,10 @@ static void ath_beacon_setup(struct ath_softc *sc,
* XXX everything at min xmit rate
*/
rix = 0;
- rt = sc->sc_currates;
- rate = rt->info[rix].rateCode;
+ rt = sc->hw_rate_table[sc->sc_curmode];
+ rate = rt->info[rix].ratecode;
if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
- rate |= rt->info[rix].shortPreamble;
+ rate |= rt->info[rix].short_preamble;
ath9k_hw_set11n_txdesc(ah, ds,
skb->len + FCS_LEN, /* frame length */
diff --git a/drivers/net/wireless/ath9k/core.c b/drivers/net/wireless/ath9k/core.c
index 6c872e7..fb6a013 100644
--- a/drivers/net/wireless/ath9k/core.c
+++ b/drivers/net/wireless/ath9k/core.c
@@ -80,38 +80,9 @@ static u8 parse_mpdudensity(u8 mpdudensity)
/*
* Set current operating mode
- *
- * This function initializes and fills the rate table in the ATH object based
- * on the operating mode.
*/
static void ath_setcurmode(struct ath_softc *sc, enum wireless_mode mode)
{
- const struct ath9k_rate_table *rt;
- int i;
-
- rt = ath9k_hw_getratetable(sc->sc_ah, mode);
- BUG_ON(!rt);
-
- memset(sc->sc_hwmap, 0, sizeof(sc->sc_hwmap));
- for (i = 0; i < 256; i++) {
- u8 ix = rt->rateCodeToIndex[i];
-
- if (ix == 0xff)
- continue;
-
- sc->sc_hwmap[i].ieeerate =
- rt->info[ix].dot11Rate & IEEE80211_RATE_VAL;
- sc->sc_hwmap[i].rateKbps = rt->info[ix].rateKbps;
-
- if (rt->info[ix].shortPreamble ||
- rt->info[ix].phy == PHY_OFDM) {
- /* XXX: Handle this */
- }
-
- /* NB: this uses the last entry if the rate isn't found */
- /* XXX beware of overlow */
- }
- sc->sc_currates = rt;
sc->sc_curmode = mode;
/*
* All protection frames are transmited at 2Mb/s for
@@ -126,37 +97,36 @@ static void ath_setcurmode(struct ath_softc *sc, enum wireless_mode mode)
*/
static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band)
{
- struct ath_hal *ah = sc->sc_ah;
- const struct ath9k_rate_table *rt = NULL;
+ struct ath_rate_table *rate_table = NULL;
struct ieee80211_supported_band *sband;
struct ieee80211_rate *rate;
int i, maxrates;
switch (band) {
case IEEE80211_BAND_2GHZ:
- rt = ath9k_hw_getratetable(ah, ATH9K_MODE_11G);
+ rate_table = sc->hw_rate_table[ATH9K_MODE_11G];
break;
case IEEE80211_BAND_5GHZ:
- rt = ath9k_hw_getratetable(ah, ATH9K_MODE_11A);
+ rate_table = sc->hw_rate_table[ATH9K_MODE_11A];
break;
default:
break;
}
- if (rt == NULL)
+ if (rate_table == NULL)
return;
sband = &sc->sbands[band];
rate = sc->rates[band];
- if (rt->rateCount > ATH_RATE_MAX)
+ if (rate_table->rate_cnt > ATH_RATE_MAX)
maxrates = ATH_RATE_MAX;
else
- maxrates = rt->rateCount;
+ maxrates = rate_table->rate_cnt;
for (i = 0; i < maxrates; i++) {
- rate[i].bitrate = rt->info[i].rateKbps / 100;
- rate[i].hw_value = rt->info[i].rateCode;
+ rate[i].bitrate = rate_table->info[i].ratekbps / 100;
+ rate[i].hw_value = rate_table->info[i].ratecode;
sband->n_bitrates++;
DPRINTF(sc, ATH_DBG_CONFIG,
"%s: Rate: %2dMbps, ratecode: %2d\n",
@@ -1000,12 +970,10 @@ int ath_init(u16 devid, struct ath_softc *sc)
/* Setup rate tables */
+ ath_rate_attach(sc);
ath_setup_rates(sc, IEEE80211_BAND_2GHZ);
ath_setup_rates(sc, IEEE80211_BAND_5GHZ);
- /* NB: setup here so ath_rate_update is happy */
- ath_setcurmode(sc, ATH9K_MODE_11A);
-
/*
* Allocate hardware transmit queues: one queue for
* beacon frames and one data queue for each QoS
@@ -1071,8 +1039,6 @@ int ath_init(u16 devid, struct ath_softc *sc)
sc->sc_ani.sc_noise_floor = ATH_DEFAULT_NOISE_FLOOR;
setup_timer(&sc->sc_ani.timer, ath_ani_calibrate, (unsigned long)sc);
- ath_rate_attach(sc);
-
if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_TKIP, NULL)) {
/*
diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index 255f860..0c34820 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -858,12 +858,7 @@ struct ath_softc {
/* Rate */
struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX];
struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX];
- const struct ath9k_rate_table *sc_currates;
u8 sc_protrix; /* protection rate index */
- struct {
- u32 rateKbps; /* transfer rate in kbs */
- u8 ieeerate; /* IEEE rate */
- } sc_hwmap[256]; /* h/w rate ix mappings */
/* Channel, Band */
struct ieee80211_channel channels[IEEE80211_NUM_BANDS][ATH_CHAN_MAX];
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index dc30703..7964639 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -142,14 +142,14 @@ bool ath9k_get_channel_edges(struct ath_hal *ah,
}
u16 ath9k_hw_computetxtime(struct ath_hal *ah,
- const struct ath9k_rate_table *rates,
+ struct ath_rate_table *rates,
u32 frameLen, u16 rateix,
bool shortPreamble)
{
u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
u32 kbps;
- kbps = rates->info[rateix].rateKbps;
+ kbps = rates->info[rateix].ratekbps;
if (kbps == 0)
return 0;
@@ -157,7 +157,7 @@ u16 ath9k_hw_computetxtime(struct ath_hal *ah,
switch (rates->info[rateix].phy) {
case PHY_CCK:
phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
- if (shortPreamble && rates->info[rateix].shortPreamble)
+ if (shortPreamble && rates->info[rateix].short_preamble)
phyTime >>= 1;
numBits = frameLen << 3;
txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
@@ -3191,190 +3191,6 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hal *ah,
}
-/***************/
-/* Rate tables */
-/***************/
-
-static struct ath9k_rate_table ar5416_11a_table = {
- 8,
- {0},
- {
- {true, PHY_OFDM, 6000, 0x0b, 0x00, (0x80 | 12), 0},
- {true, PHY_OFDM, 9000, 0x0f, 0x00, 18, 0},
- {true, PHY_OFDM, 12000, 0x0a, 0x00, (0x80 | 24), 2},
- {true, PHY_OFDM, 18000, 0x0e, 0x00, 36, 2},
- {true, PHY_OFDM, 24000, 0x09, 0x00, (0x80 | 48), 4},
- {true, PHY_OFDM, 36000, 0x0d, 0x00, 72, 4},
- {true, PHY_OFDM, 48000, 0x08, 0x00, 96, 4},
- {true, PHY_OFDM, 54000, 0x0c, 0x00, 108, 4}
- },
-};
-
-static struct ath9k_rate_table ar5416_11b_table = {
- 4,
- {0},
- {
- {true, PHY_CCK, 1000, 0x1b, 0x00, (0x80 | 2), 0},
- {true, PHY_CCK, 2000, 0x1a, 0x04, (0x80 | 4), 1},
- {true, PHY_CCK, 5500, 0x19, 0x04, (0x80 | 11), 1},
- {true, PHY_CCK, 11000, 0x18, 0x04, (0x80 | 22), 1}
- },
-};
-
-static struct ath9k_rate_table ar5416_11g_table = {
- 12,
- {0},
- {
- {true, PHY_CCK, 1000, 0x1b, 0x00, (0x80 | 2), 0},
- {true, PHY_CCK, 2000, 0x1a, 0x04, (0x80 | 4), 1},
- {true, PHY_CCK, 5500, 0x19, 0x04, (0x80 | 11), 2},
- {true, PHY_CCK, 11000, 0x18, 0x04, (0x80 | 22), 3},
-
- {false, PHY_OFDM, 6000, 0x0b, 0x00, 12, 4},
- {false, PHY_OFDM, 9000, 0x0f, 0x00, 18, 4},
- {true, PHY_OFDM, 12000, 0x0a, 0x00, 24, 6},
- {true, PHY_OFDM, 18000, 0x0e, 0x00, 36, 6},
- {true, PHY_OFDM, 24000, 0x09, 0x00, 48, 8},
- {true, PHY_OFDM, 36000, 0x0d, 0x00, 72, 8},
- {true, PHY_OFDM, 48000, 0x08, 0x00, 96, 8},
- {true, PHY_OFDM, 54000, 0x0c, 0x00, 108, 8}
- },
-};
-
-static struct ath9k_rate_table ar5416_11ng_table = {
- 28,
- {0},
- {
- {true, PHY_CCK, 1000, 0x1b, 0x00, (0x80 | 2), 0},
- {true, PHY_CCK, 2000, 0x1a, 0x04, (0x80 | 4), 1},
- {true, PHY_CCK, 5500, 0x19, 0x04, (0x80 | 11), 2},
- {true, PHY_CCK, 11000, 0x18, 0x04, (0x80 | 22), 3},
-
- {false, PHY_OFDM, 6000, 0x0b, 0x00, 12, 4},
- {false, PHY_OFDM, 9000, 0x0f, 0x00, 18, 4},
- {true, PHY_OFDM, 12000, 0x0a, 0x00, 24, 6},
- {true, PHY_OFDM, 18000, 0x0e, 0x00, 36, 6},
- {true, PHY_OFDM, 24000, 0x09, 0x00, 48, 8},
- {true, PHY_OFDM, 36000, 0x0d, 0x00, 72, 8},
- {true, PHY_OFDM, 48000, 0x08, 0x00, 96, 8},
- {true, PHY_OFDM, 54000, 0x0c, 0x00, 108, 8},
- {true, PHY_HT, 6500, 0x80, 0x00, 0, 4},
- {true, PHY_HT, 13000, 0x81, 0x00, 1, 6},
- {true, PHY_HT, 19500, 0x82, 0x00, 2, 6},
- {true, PHY_HT, 26000, 0x83, 0x00, 3, 8},
- {true, PHY_HT, 39000, 0x84, 0x00, 4, 8},
- {true, PHY_HT, 52000, 0x85, 0x00, 5, 8},
- {true, PHY_HT, 58500, 0x86, 0x00, 6, 8},
- {true, PHY_HT, 65000, 0x87, 0x00, 7, 8},
- {true, PHY_HT, 13000, 0x88, 0x00, 8, 4},
- {true, PHY_HT, 26000, 0x89, 0x00, 9, 6},
- {true, PHY_HT, 39000, 0x8a, 0x00, 10, 6},
- {true, PHY_HT, 52000, 0x8b, 0x00, 11, 8},
- {true, PHY_HT, 78000, 0x8c, 0x00, 12, 8},
- {true, PHY_HT, 104000, 0x8d, 0x00, 13, 8},
- {true, PHY_HT, 117000, 0x8e, 0x00, 14, 8},
- {true, PHY_HT, 130000, 0x8f, 0x00, 15, 8},
- },
-};
-
-static struct ath9k_rate_table ar5416_11na_table = {
- 24,
- {0},
- {
- {true, PHY_OFDM, 6000, 0x0b, 0x00, (0x80 | 12), 0},
- {true, PHY_OFDM, 9000, 0x0f, 0x00, 18, 0},
- {true, PHY_OFDM, 12000, 0x0a, 0x00, (0x80 | 24), 2},
- {true, PHY_OFDM, 18000, 0x0e, 0x00, 36, 2},
- {true, PHY_OFDM, 24000, 0x09, 0x00, (0x80 | 48), 4},
- {true, PHY_OFDM, 36000, 0x0d, 0x00, 72, 4},
- {true, PHY_OFDM, 48000, 0x08, 0x00, 96, 4},
- {true, PHY_OFDM, 54000, 0x0c, 0x00, 108, 4},
- {true, PHY_HT, 6500, 0x80, 0x00, 0, 0},
- {true, PHY_HT, 13000, 0x81, 0x00, 1, 2},
- {true, PHY_HT, 19500, 0x82, 0x00, 2, 2},
- {true, PHY_HT, 26000, 0x83, 0x00, 3, 4},
- {true, PHY_HT, 39000, 0x84, 0x00, 4, 4},
- {true, PHY_HT, 52000, 0x85, 0x00, 5, 4},
- {true, PHY_HT, 58500, 0x86, 0x00, 6, 4},
- {true, PHY_HT, 65000, 0x87, 0x00, 7, 4},
- {true, PHY_HT, 13000, 0x88, 0x00, 8, 0},
- {true, PHY_HT, 26000, 0x89, 0x00, 9, 2},
- {true, PHY_HT, 39000, 0x8a, 0x00, 10, 2},
- {true, PHY_HT, 52000, 0x8b, 0x00, 11, 4},
- {true, PHY_HT, 78000, 0x8c, 0x00, 12, 4},
- {true, PHY_HT, 104000, 0x8d, 0x00, 13, 4},
- {true, PHY_HT, 117000, 0x8e, 0x00, 14, 4},
- {true, PHY_HT, 130000, 0x8f, 0x00, 15, 4},
- },
-};
-
-static void ath9k_hw_setup_rate_table(struct ath_hal *ah,
- struct ath9k_rate_table *rt)
-{
- int i;
-
- if (rt->rateCodeToIndex[0] != 0)
- return;
-
- for (i = 0; i < 256; i++)
- rt->rateCodeToIndex[i] = (u8) -1;
-
- for (i = 0; i < rt->rateCount; i++) {
- u8 code = rt->info[i].rateCode;
- u8 cix = rt->info[i].controlRate;
-
- rt->rateCodeToIndex[code] = i;
- rt->rateCodeToIndex[code | rt->info[i].shortPreamble] = i;
-
- rt->info[i].lpAckDuration =
- ath9k_hw_computetxtime(ah, rt,
- WLAN_CTRL_FRAME_SIZE,
- cix,
- false);
- rt->info[i].spAckDuration =
- ath9k_hw_computetxtime(ah, rt,
- WLAN_CTRL_FRAME_SIZE,
- cix,
- true);
- }
-}
-
-const struct ath9k_rate_table *ath9k_hw_getratetable(struct ath_hal *ah,
- u32 mode)
-{
- struct ath9k_rate_table *rt;
-
- switch (mode) {
- case ATH9K_MODE_11A:
- rt = &ar5416_11a_table;
- break;
- case ATH9K_MODE_11B:
- rt = &ar5416_11b_table;
- break;
- case ATH9K_MODE_11G:
- rt = &ar5416_11g_table;
- break;
- case ATH9K_MODE_11NG_HT20:
- case ATH9K_MODE_11NG_HT40PLUS:
- case ATH9K_MODE_11NG_HT40MINUS:
- rt = &ar5416_11ng_table;
- break;
- case ATH9K_MODE_11NA_HT20:
- case ATH9K_MODE_11NA_HT40PLUS:
- case ATH9K_MODE_11NA_HT40MINUS:
- rt = &ar5416_11na_table;
- break;
- default:
- DPRINTF(ah->ah_sc, ATH_DBG_CHANNEL, "%s: invalid mode 0x%x\n",
- __func__, mode);
- return NULL;
- }
-
- ath9k_hw_setup_rate_table(ah, rt);
-
- return rt;
-}
-
/*******************/
/* HW Capabilities */
/*******************/
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 7ddb932..cbe53bd 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -781,6 +781,8 @@ static int ath_attach(u16 devid, struct ath_softc *sc)
BIT(NL80211_IFTYPE_ADHOC);
hw->queues = 4;
+ hw->max_rates = 4;
+ hw->max_rate_tries = ATH_11N_TXMAXTRY;
hw->sta_data_size = sizeof(struct ath_node);
hw->vif_data_size = sizeof(struct ath_vap);
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index 156b245..bf637aa 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -25,6 +25,7 @@
static struct ath_rate_table ar5416_11na_ratetable = {
42,
+ {0},
{
{ TRUE, TRUE, WLAN_PHY_OFDM, 6000, /* 6 Mb */
5400, 0x0b, 0x00, 12,
@@ -168,6 +169,7 @@ static struct ath_rate_table ar5416_11na_ratetable = {
static struct ath_rate_table ar5416_11ng_ratetable = {
46,
+ {0},
{
{ TRUE_ALL, TRUE_ALL, WLAN_PHY_CCK, 1000, /* 1 Mb */
900, 0x1b, 0x00, 2,
@@ -315,6 +317,7 @@ static struct ath_rate_table ar5416_11ng_ratetable = {
static struct ath_rate_table ar5416_11a_ratetable = {
8,
+ {0},
{
{ TRUE, TRUE, WLAN_PHY_OFDM, 6000, /* 6 Mb */
5400, 0x0b, 0x00, (0x80|12),
@@ -348,6 +351,7 @@ static struct ath_rate_table ar5416_11a_ratetable = {
static struct ath_rate_table ar5416_11g_ratetable = {
12,
+ {0},
{
{ TRUE, TRUE, WLAN_PHY_CCK, 1000, /* 1 Mb */
900, 0x1b, 0x00, 2,
@@ -393,6 +397,7 @@ static struct ath_rate_table ar5416_11g_ratetable = {
static struct ath_rate_table ar5416_11b_ratetable = {
4,
+ {0},
{
{ TRUE, TRUE, WLAN_PHY_CCK, 1000, /* 1 Mb */
900, 0x1b, 0x00, (0x80|2),
@@ -1302,14 +1307,14 @@ static void ath_rc_update(struct ath_softc *sc,
if (final_ts_idx != 0) {
/* Process intermediate rates that failed.*/
for (series = 0; series < final_ts_idx ; series++) {
- if (rates[series].count != 0) {
+ if (rates[series].count != 0 && (rates[series].idx >= 0)) {
flags = rates[series].flags;
/* If HT40 and we have switched mode from
* 40 to 20 => don't update */
if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) &&
- (ath_rc_priv->rc_phy_mode !=
- (flags & IEEE80211_TX_RC_40_MHZ_WIDTH)))
+ (ath_rc_priv->rc_phy_mode != WLAN_RC_40_FLAG))
return;
+
if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) &&
(flags & IEEE80211_TX_RC_SHORT_GI))
rix = rate_table->info[
@@ -1343,8 +1348,9 @@ static void ath_rc_update(struct ath_softc *sc,
flags = rates[series].flags;
/* If HT40 and we have switched mode from 40 to 20 => don't update */
if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) &&
- (ath_rc_priv->rc_phy_mode != (flags & IEEE80211_TX_RC_40_MHZ_WIDTH)))
+ (ath_rc_priv->rc_phy_mode != WLAN_RC_40_FLAG)) {
return;
+ }
if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && (flags & IEEE80211_TX_RC_SHORT_GI))
rix = rate_table->info[rates[series].idx].ht_index;
@@ -1628,7 +1634,6 @@ static void ath_rate_free_sta(void *priv, struct ieee80211_sta *sta,
void *priv_sta)
{
struct ath_rate_node *rate_priv = priv_sta;
-
kfree(rate_priv);
}
@@ -1644,6 +1649,35 @@ static struct rate_control_ops ath_rate_ops = {
.free_sta = ath_rate_free_sta,
};
+static void ath_setup_rate_table(struct ath_softc *sc,
+ struct ath_rate_table *rate_table)
+{
+ int i;
+
+ for (i = 0; i < 256; i++)
+ rate_table->rateCodeToIndex[i] = (u8)-1;
+
+ for (i = 0; i < rate_table->rate_cnt; i++) {
+ u8 code = rate_table->info[i].ratecode;
+ u8 cix = rate_table->info[i].ctrl_rate;
+ u8 sh = rate_table->info[i].short_preamble;
+
+ rate_table->rateCodeToIndex[code] = i;
+ rate_table->rateCodeToIndex[code | sh] = i;
+
+ rate_table->info[i].lpAckDuration =
+ ath9k_hw_computetxtime(sc->sc_ah, rate_table,
+ WLAN_CTRL_FRAME_SIZE,
+ cix,
+ false);
+ rate_table->info[i].spAckDuration =
+ ath9k_hw_computetxtime(sc->sc_ah, rate_table,
+ WLAN_CTRL_FRAME_SIZE,
+ cix,
+ true);
+ }
+}
+
void ath_rate_attach(struct ath_softc *sc)
{
sc->hw_rate_table[ATH9K_MODE_11B] =
@@ -1664,6 +1698,12 @@ void ath_rate_attach(struct ath_softc *sc)
&ar5416_11ng_ratetable;
sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS] =
&ar5416_11ng_ratetable;
+
+ ath_setup_rate_table(sc, &ar5416_11b_ratetable);
+ ath_setup_rate_table(sc, &ar5416_11a_ratetable);
+ ath_setup_rate_table(sc, &ar5416_11g_ratetable);
+ ath_setup_rate_table(sc, &ar5416_11na_ratetable);
+ ath_setup_rate_table(sc, &ar5416_11ng_ratetable);
}
int ath_rate_control_register(void)
@@ -1675,4 +1715,3 @@ void ath_rate_control_unregister(void)
{
ieee80211_rate_control_unregister(&ath_rate_ops);
}
-
diff --git a/drivers/net/wireless/ath9k/rc.h b/drivers/net/wireless/ath9k/rc.h
index 3324bed..c1e370c 100644
--- a/drivers/net/wireless/ath9k/rc.h
+++ b/drivers/net/wireless/ath9k/rc.h
@@ -143,6 +143,7 @@ enum {
*/
struct ath_rate_table {
int rate_cnt;
+ u8 rateCodeToIndex[256];
struct {
int valid;
int valid_single_stream;
@@ -160,6 +161,8 @@ struct ath_rate_table {
u8 sgi_index;
u8 ht_index;
u32 max_4ms_framelen;
+ u16 lpAckDuration;
+ u16 spAckDuration;
} info[RATE_TABLE_SIZE];
u32 probe_interval;
u32 rssi_reduce_interval;
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index 000e189..20f8377 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -140,8 +140,9 @@ static int ath_rx_prepare(struct sk_buff *skb, struct ath_desc *ds,
struct ieee80211_rx_status *rx_status, bool *decrypt_error,
struct ath_softc *sc)
{
+ struct ath_rate_table *rate_table = sc->hw_rate_table[sc->sc_curmode];
struct ieee80211_hdr *hdr;
- int ratekbps;
+ int ratekbps, rix;
u8 ratecode;
__le16 fc;
@@ -196,7 +197,8 @@ static int ath_rx_prepare(struct sk_buff *skb, struct ath_desc *ds,
}
ratecode = ds->ds_rxstat.rs_rate;
- ratekbps = sc->sc_hwmap[ratecode].rateKbps;
+ rix = rate_table->rateCodeToIndex[ratecode];
+ ratekbps = rate_table->info[rix].ratekbps;
/* HT rate */
if (ratecode & 0x80) {
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index baf5cb9..b2d0cca 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -176,25 +176,6 @@ static int get_hw_crypto_keytype(struct sk_buff *skb)
return ATH9K_KEY_TYPE_CLEAR;
}
-static void setup_rate_retries(struct ath_softc *sc, struct sk_buff *skb)
-{
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
- struct ieee80211_tx_rate *rates = tx_info->control.rates;
- struct ieee80211_hdr *hdr;
- __le16 fc;
-
- hdr = (struct ieee80211_hdr *)skb->data;
- fc = hdr->frame_control;
-
- if (ieee80211_has_morefrags(fc) ||
- (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)) {
- rates[1].count = rates[2].count = rates[3].count = 0;
- rates[1].idx = rates[2].idx = rates[3].idx = 0;
- /* reset tries but keep rate index */
- rates[0].count = ATH_TXMAXTRY;
- }
-}
-
/* Called only when tx aggregation is enabled and HT is supported */
static void assign_aggr_tid_seqno(struct sk_buff *skb,
@@ -468,27 +449,23 @@ static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
* width - 0 for 20 MHz, 1 for 40 MHz
* half_gi - to use 4us v/s 3.6 us for symbol time
*/
-
static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, struct ath_buf *bf,
int width, int half_gi, bool shortPreamble)
{
- const struct ath9k_rate_table *rt = sc->sc_currates;
+ struct ath_rate_table *rate_table = sc->hw_rate_table[sc->sc_curmode];
u32 nbits, nsymbits, duration, nsymbols;
u8 rc;
int streams, pktlen;
pktlen = bf_isaggr(bf) ? bf->bf_al : bf->bf_frmlen;
- rc = rt->info[rix].rateCode;
+ rc = rate_table->info[rix].ratecode;
- /*
- * for legacy rates, use old function to compute packet duration
- */
+ /* for legacy rates, use old function to compute packet duration */
if (!IS_HT_RATE(rc))
- return ath9k_hw_computetxtime(sc->sc_ah, rt, pktlen, rix,
- shortPreamble);
- /*
- * find number of symbols: PLCP + data
- */
+ return ath9k_hw_computetxtime(sc->sc_ah, rate_table, pktlen,
+ rix, shortPreamble);
+
+ /* find number of symbols: PLCP + data */
nbits = (pktlen << 3) + OFDM_PLCP_BITS;
nsymbits = bits_per_symbol[HT_RC_2_MCS(rc)][width];
nsymbols = (nbits + nsymbits - 1) / nsymbits;
@@ -498,9 +475,7 @@ static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, struct ath_buf *bf,
else
duration = SYMBOL_TIME_HALFGI(nsymbols);
- /*
- * addup duration for legacy/ht training and signal fields
- */
+ /* addup duration for legacy/ht training and signal fields */
streams = HT_RC_2_STREAMS(rc);
duration += L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
@@ -512,114 +487,104 @@ static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, struct ath_buf *bf,
static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf)
{
struct ath_hal *ah = sc->sc_ah;
- const struct ath9k_rate_table *rt;
+ struct ath_rate_table *rt;
struct ath_desc *ds = bf->bf_desc;
struct ath_desc *lastds = bf->bf_lastbf->bf_desc;
struct ath9k_11n_rate_series series[4];
- int i, flags, rtsctsena = 0;
- u32 ctsduration = 0;
- u8 rix = 0, cix, ctsrate = 0;
struct ath_node *an = NULL;
struct sk_buff *skb;
struct ieee80211_tx_info *tx_info;
struct ieee80211_tx_rate *rates;
+ struct ieee80211_hdr *hdr;
+ int i, flags, rtsctsena = 0;
+ u32 ctsduration = 0;
+ u8 rix = 0, cix, ctsrate = 0;
+ __le16 fc;
+
+ memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
skb = (struct sk_buff *)bf->bf_mpdu;
+ hdr = (struct ieee80211_hdr *)skb->data;
+ fc = hdr->frame_control;
tx_info = IEEE80211_SKB_CB(skb);
- rates = tx_info->rate_driver_data[0];
+ rates = tx_info->control.rates;
if (tx_info->control.sta)
an = (struct ath_node *)tx_info->control.sta->drv_priv;
- /*
- * get the cix for the lowest valid rix.
- */
- rt = sc->sc_currates;
+ if (ieee80211_has_morefrags(fc) ||
+ (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)) {
+ rates[1].count = rates[2].count = rates[3].count = 0;
+ rates[1].idx = rates[2].idx = rates[3].idx = 0;
+ rates[0].count = ATH_TXMAXTRY;
+ }
+
+ /* get the cix for the lowest valid rix */
+ rt = sc->hw_rate_table[sc->sc_curmode];
for (i = 3; i >= 0; i--) {
- if (rates[i].count) {
+ if (rates[i].count && (rates[i].idx >= 0)) {
rix = rates[i].idx;
break;
}
}
+
flags = (bf->bf_flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA));
- cix = rt->info[rix].controlRate;
+ cix = rt->info[rix].ctrl_rate;
/*
- * If 802.11g protection is enabled, determine whether
- * to use RTS/CTS or just CTS. Note that this is only
- * done for OFDM/HT unicast frames.
+ * If 802.11g protection is enabled, determine whether to use RTS/CTS or
+ * just CTS. Note that this is only done for OFDM/HT unicast frames.
*/
- if (sc->sc_protmode != PROT_M_NONE &&
- (rt->info[rix].phy == PHY_OFDM ||
- rt->info[rix].phy == PHY_HT) &&
- (bf->bf_flags & ATH9K_TXDESC_NOACK) == 0) {
+ if (sc->sc_protmode != PROT_M_NONE && !(bf->bf_flags & ATH9K_TXDESC_NOACK)
+ && (rt->info[rix].phy == WLAN_PHY_OFDM ||
+ WLAN_RC_PHY_HT(rt->info[rix].phy))) {
if (sc->sc_protmode == PROT_M_RTSCTS)
flags = ATH9K_TXDESC_RTSENA;
else if (sc->sc_protmode == PROT_M_CTSONLY)
flags = ATH9K_TXDESC_CTSENA;
- cix = rt->info[sc->sc_protrix].controlRate;
+ cix = rt->info[sc->sc_protrix].ctrl_rate;
rtsctsena = 1;
}
- /* For 11n, the default behavior is to enable RTS for
- * hw retried frames. We enable the global flag here and
- * let rate series flags determine which rates will actually
- * use RTS.
+ /* For 11n, the default behavior is to enable RTS for hw retried frames.
+ * We enable the global flag here and let rate series flags determine
+ * which rates will actually use RTS.
*/
if ((ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) && bf_isdata(bf)) {
- /*
- * 802.11g protection not needed, use our default behavior
- */
+ /* 802.11g protection not needed, use our default behavior */
if (!rtsctsena)
flags = ATH9K_TXDESC_RTSENA;
}
- /*
- * Set protection if aggregate protection on
- */
+ /* Set protection if aggregate protection on */
if (sc->sc_config.ath_aggr_prot &&
(!bf_isaggr(bf) || (bf_isaggr(bf) && bf->bf_al < 8192))) {
flags = ATH9K_TXDESC_RTSENA;
- cix = rt->info[sc->sc_protrix].controlRate;
+ cix = rt->info[sc->sc_protrix].ctrl_rate;
rtsctsena = 1;
}
- /*
- * For AR5416 - RTS cannot be followed by a frame larger than 8K.
- */
- if (bf_isaggr(bf) && (bf->bf_al > ah->ah_caps.rts_aggr_limit)) {
- /*
- * Ensure that in the case of SM Dynamic power save
- * while we are bursting the second aggregate the
- * RTS is cleared.
- */
+ /* For AR5416 - RTS cannot be followed by a frame larger than 8K */
+ if (bf_isaggr(bf) && (bf->bf_al > ah->ah_caps.rts_aggr_limit))
flags &= ~(ATH9K_TXDESC_RTSENA);
- }
-
- /*
- * CTS transmit rate is derived from the transmit rate
- * by looking in the h/w rate table. We must also factor
- * in whether or not a short preamble is to be used.
- * NB: cix is set above where RTS/CTS is enabled
- */
- BUG_ON(cix == 0xff);
- ctsrate = rt->info[cix].rateCode |
- (bf_isshpreamble(bf) ? rt->info[cix].shortPreamble : 0);
/*
- * Setup HAL rate series
+ * CTS transmit rate is derived from the transmit rate by looking in the
+ * h/w rate table. We must also factor in whether or not a short
+ * preamble is to be used. NB: cix is set above where RTS/CTS is enabled
*/
- memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
+ ctsrate = rt->info[cix].ratecode |
+ (bf_isshpreamble(bf) ? rt->info[cix].short_preamble : 0);
for (i = 0; i < 4; i++) {
- if (!rates[i].count)
+ if (!rates[i].count || (rates[i].idx < 0))
continue;
rix = rates[i].idx;
- series[i].Rate = rt->info[rix].rateCode |
- (bf_isshpreamble(bf) ? rt->info[rix].shortPreamble : 0);
+ series[i].Rate = rt->info[rix].ratecode |
+ (bf_isshpreamble(bf) ? rt->info[rix].short_preamble : 0);
series[i].Tries = rates[i].count;
@@ -645,13 +610,9 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf)
series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
}
- /*
- * set dur_update_en for l-sig computation except for PS-Poll frames
- */
- ath9k_hw_set11n_ratescenario(ah, ds, lastds,
- !bf_ispspoll(bf),
- ctsrate,
- ctsduration,
+ /* set dur_update_en for l-sig computation except for PS-Poll frames */
+ ath9k_hw_set11n_ratescenario(ah, ds, lastds, !bf_ispspoll(bf),
+ ctsrate, ctsduration,
series, 4, flags);
if (sc->sc_config.ath_aggr_prot && flags)
@@ -662,7 +623,6 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf)
* Function to send a normal HT (non-AMPDU) frame
* NB: must be called with txq lock held
*/
-
static int ath_tx_send_normal(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_atx_tid *tid,
@@ -1256,7 +1216,6 @@ static u32 ath_lookup_rate(struct ath_softc *sc,
struct ath_atx_tid *tid)
{
struct ath_rate_table *rate_table = sc->hw_rate_table[sc->sc_curmode];
- const struct ath9k_rate_table *rt = sc->sc_currates;
struct sk_buff *skb;
struct ieee80211_tx_info *tx_info;
struct ieee80211_tx_rate *rates;
@@ -1280,7 +1239,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc,
for (i = 0; i < 4; i++) {
if (rates[i].count) {
- if (rt->info[rates[i].idx].phy != PHY_HT) {
+ if (!WLAN_RC_PHY_HT(rate_table->info[rates[i].idx].phy)) {
legacy = 1;
break;
}
@@ -1325,7 +1284,7 @@ static int ath_compute_num_delims(struct ath_softc *sc,
struct ath_buf *bf,
u16 frmlen)
{
- const struct ath9k_rate_table *rt = sc->sc_currates;
+ struct ath_rate_table *rt = sc->hw_rate_table[sc->sc_curmode];
struct sk_buff *skb = bf->bf_mpdu;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
u32 nsymbits, nsymbols, mpdudensity;
@@ -1362,7 +1321,7 @@ static int ath_compute_num_delims(struct ath_softc *sc,
rix = tx_info->control.rates[0].idx;
flags = tx_info->control.rates[0].flags;
- rc = rt->info[rix].rateCode;
+ rc = rt->info[rix].ratecode;
width = (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ? 1 : 0;
half_gi = (flags & IEEE80211_TX_RC_SHORT_GI) ? 1 : 0;
@@ -1713,10 +1672,6 @@ static void ath_tx_setup_buffer(struct ath_softc *sc, struct ath_buf *bf,
bf->bf_keyix = ATH9K_TXKEYIX_INVALID;
}
- /* Rate series */
-
- setup_rate_retries(sc, skb);
-
/* Assign seqno, tidno */
if (bf_isht(bf) && (sc->sc_flags & SC_OP_TXAGGR))
--
1.6.0.3