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openwrt/package/kernel/mac80211/patches/554-ath9k-consistently-use-get_eeprom_rev-ah.patch
Toke Høiland-Jørgensen 528f46d082 ath9k: Add airtime fairness scheduler 
This adds a patch that introduces airtime fairness scheduling to ath9k,
which can significantly improve network efficiency in mixed-rate
environments.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-12-22 16:42:19 +01:00

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From c763af71bcc2f01bd5ef6e65c7c34b46c7235a16 Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Mon, 3 Oct 2016 00:29:11 +0200
Subject: [v2 PATCH 5/7] ath9k: consistently use get_eeprom_rev(ah)
The AR5416_VER_MASK macro does the same as get_eeprom_rev, except that
one has to know the actual EEPROM type (and providing a reference to
that in a variable named "eep"). Additionally the eeprom_*.c
implementations used the same shifting logic multiple times to get the
eeprom revision which was also unnecessary duplication of
get_eeprom_rev.
Also use the AR5416_EEP_VER_MINOR_MASK macro where needed and introduce
a similar macro (AR5416_EEP_VER_MAJOR_MASK) for the major version.
Finally drop AR9287_EEP_VER_MINOR_MASK since it simply duplicates the
already defined AR5416_EEP_VER_MINOR_MASK.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
drivers/net/wireless/ath/ath9k/eeprom.h | 4 +--
drivers/net/wireless/ath/ath9k/eeprom_4k.c | 32 ++++++++++------------
drivers/net/wireless/ath/ath9k/eeprom_9287.c | 19 +++++++------
drivers/net/wireless/ath/ath9k/eeprom_def.c | 41 +++++++++++++++-------------
drivers/net/wireless/ath/ath9k/xmit.c | 3 +-
5 files changed, 52 insertions(+), 47 deletions(-)
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -99,7 +99,6 @@
#define FBIN2FREQ(x, y) ((y) ? (2300 + x) : (4800 + 5 * x))
#define ath9k_hw_use_flash(_ah) (!(_ah->ah_flags & AH_USE_EEPROM))
-#define AR5416_VER_MASK (eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK)
#define OLC_FOR_AR9280_20_LATER (AR_SREV_9280_20_OR_LATER(ah) && \
ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
#define OLC_FOR_AR9287_10_LATER (AR_SREV_9287_11_OR_LATER(ah) && \
@@ -121,6 +120,8 @@
#define AR5416_EEP_NO_BACK_VER 0x1
#define AR5416_EEP_VER 0xE
+#define AR5416_EEP_VER_MAJOR_SHIFT 12
+#define AR5416_EEP_VER_MAJOR_MASK 0xF000
#define AR5416_EEP_VER_MINOR_MASK 0x0FFF
#define AR5416_EEP_MINOR_VER_2 0x2
#define AR5416_EEP_MINOR_VER_3 0x3
@@ -177,7 +178,6 @@
#define AR9280_TX_GAIN_TABLE_SIZE 22
#define AR9287_EEP_VER 0xE
-#define AR9287_EEP_VER_MINOR_MASK 0xFFF
#define AR9287_EEP_MINOR_VER_1 0x1
#define AR9287_EEP_MINOR_VER_2 0x2
#define AR9287_EEP_MINOR_VER_3 0x3
--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
@@ -20,12 +20,17 @@
static int ath9k_hw_4k_get_eeprom_ver(struct ath_hw *ah)
{
- return ((ah->eeprom.map4k.baseEepHeader.version >> 12) & 0xF);
+ u16 version = ah->eeprom.map4k.baseEepHeader.version;
+
+ return (version & AR5416_EEP_VER_MAJOR_MASK) >>
+ AR5416_EEP_VER_MAJOR_SHIFT;
}
static int ath9k_hw_4k_get_eeprom_rev(struct ath_hw *ah)
{
- return ((ah->eeprom.map4k.baseEepHeader.version) & 0xFFF);
+ u16 version = ah->eeprom.map4k.baseEepHeader.version;
+
+ return version & AR5416_EEP_VER_MINOR_MASK;
}
#define SIZE_EEPROM_4K (sizeof(struct ar5416_eeprom_4k) / sizeof(u16))
@@ -136,8 +141,8 @@ static u32 ath9k_hw_4k_dump_eeprom(struc
goto out;
}
- PR_EEP("Major Version", pBase->version >> 12);
- PR_EEP("Minor Version", pBase->version & 0xFFF);
+ PR_EEP("Major Version", ath9k_hw_4k_get_eeprom_ver(ah));
+ PR_EEP("Minor Version", ath9k_hw_4k_get_eeprom_rev(ah));
PR_EEP("Checksum", pBase->checksum);
PR_EEP("Length", pBase->length);
PR_EEP("RegDomain1", pBase->regDmn[0]);
@@ -314,14 +319,12 @@ static void ath9k_hw_set_4k_power_cal_ta
xpdMask = pEepData->modalHeader.xpdGain;
- if ((pEepData->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_2) {
+ if (ath9k_hw_4k_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_2)
pdGainOverlap_t2 =
pEepData->modalHeader.pdGainOverlap;
- } else {
+ else
pdGainOverlap_t2 = (u16)(MS(REG_READ(ah, AR_PHY_TPCRG5),
AR_PHY_TPCRG5_PD_GAIN_OVERLAP));
- }
pCalBChans = pEepData->calFreqPier2G;
numPiers = AR5416_EEP4K_NUM_2G_CAL_PIERS;
@@ -607,10 +610,8 @@ static void ath9k_hw_4k_set_txpower(stru
memset(ratesArray, 0, sizeof(ratesArray));
- if ((pEepData->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_2) {
+ if (ath9k_hw_4k_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_2)
ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
- }
ath9k_hw_set_4k_power_per_rate_table(ah, chan,
&ratesArray[0], cfgCtl,
@@ -730,8 +731,7 @@ static void ath9k_hw_4k_set_gain(struct
SM(pModal->iqCalQCh[0], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF),
AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF | AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF);
- if ((eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_3) {
+ if (ath9k_hw_4k_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_3) {
txRxAttenLocal = pModal->txRxAttenCh[0];
REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ,
@@ -1009,16 +1009,14 @@ static void ath9k_hw_4k_set_board_values
REG_RMW_FIELD(ah, AR_PHY_EXT_CCA0, AR_PHY_EXT_CCA0_THRESH62,
pModal->thresh62);
- if ((eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_2) {
+ if (ath9k_hw_4k_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_2) {
REG_RMW_FIELD(ah, AR_PHY_RF_CTL2, AR_PHY_TX_END_DATA_START,
pModal->txFrameToDataStart);
REG_RMW_FIELD(ah, AR_PHY_RF_CTL2, AR_PHY_TX_END_PA_ON,
pModal->txFrameToPaOn);
}
- if ((eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_3) {
+ if (ath9k_hw_4k_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_3) {
if (IS_CHAN_HT40(chan))
REG_RMW_FIELD(ah, AR_PHY_SETTLING,
AR_PHY_SETTLING_SWITCH,
--- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
@@ -22,12 +22,17 @@
static int ath9k_hw_ar9287_get_eeprom_ver(struct ath_hw *ah)
{
- return (ah->eeprom.map9287.baseEepHeader.version >> 12) & 0xF;
+ u16 version = ah->eeprom.map9287.baseEepHeader.version;
+
+ return (version & AR5416_EEP_VER_MAJOR_MASK) >>
+ AR5416_EEP_VER_MAJOR_SHIFT;
}
static int ath9k_hw_ar9287_get_eeprom_rev(struct ath_hw *ah)
{
- return (ah->eeprom.map9287.baseEepHeader.version) & 0xFFF;
+ u16 version = ah->eeprom.map9287.baseEepHeader.version;
+
+ return version & AR5416_EEP_VER_MINOR_MASK;
}
static bool __ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
@@ -132,8 +137,8 @@ static u32 ath9k_hw_ar9287_dump_eeprom(s
goto out;
}
- PR_EEP("Major Version", pBase->version >> 12);
- PR_EEP("Minor Version", pBase->version & 0xFFF);
+ PR_EEP("Major Version", ath9k_hw_ar9287_get_eeprom_ver(ah));
+ PR_EEP("Minor Version", ath9k_hw_ar9287_get_eeprom_rev(ah));
PR_EEP("Checksum", pBase->checksum);
PR_EEP("Length", pBase->length);
PR_EEP("RegDomain1", pBase->regDmn[0]);
@@ -383,8 +388,7 @@ static void ath9k_hw_set_ar9287_power_ca
xpdMask = pEepData->modalHeader.xpdGain;
- if ((pEepData->baseEepHeader.version & AR9287_EEP_VER_MINOR_MASK) >=
- AR9287_EEP_MINOR_VER_2)
+ if (ath9k_hw_ar9287_get_eeprom_rev(ah) >= AR9287_EEP_MINOR_VER_2)
pdGainOverlap_t2 = pEepData->modalHeader.pdGainOverlap;
else
pdGainOverlap_t2 = (u16)(MS(REG_READ(ah, AR_PHY_TPCRG5),
@@ -733,8 +737,7 @@ static void ath9k_hw_ar9287_set_txpower(
memset(ratesArray, 0, sizeof(ratesArray));
- if ((pEepData->baseEepHeader.version & AR9287_EEP_VER_MINOR_MASK) >=
- AR9287_EEP_MINOR_VER_2)
+ if (ath9k_hw_ar9287_get_eeprom_rev(ah) >= AR9287_EEP_MINOR_VER_2)
ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
ath9k_hw_set_ar9287_power_per_rate_table(ah, chan,
--- a/drivers/net/wireless/ath/ath9k/eeprom_def.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c
@@ -79,12 +79,17 @@ static void ath9k_olc_get_pdadcs(struct
static int ath9k_hw_def_get_eeprom_ver(struct ath_hw *ah)
{
- return ((ah->eeprom.def.baseEepHeader.version >> 12) & 0xF);
+ u16 version = ah->eeprom.def.baseEepHeader.version;
+
+ return (version & AR5416_EEP_VER_MAJOR_MASK) >>
+ AR5416_EEP_VER_MAJOR_SHIFT;
}
static int ath9k_hw_def_get_eeprom_rev(struct ath_hw *ah)
{
- return ((ah->eeprom.def.baseEepHeader.version) & 0xFFF);
+ u16 version = ah->eeprom.def.baseEepHeader.version;
+
+ return version & AR5416_EEP_VER_MINOR_MASK;
}
#define SIZE_EEPROM_DEF (sizeof(struct ar5416_eeprom_def) / sizeof(u16))
@@ -214,8 +219,8 @@ static u32 ath9k_hw_def_dump_eeprom(stru
goto out;
}
- PR_EEP("Major Version", pBase->version >> 12);
- PR_EEP("Minor Version", pBase->version & 0xFFF);
+ PR_EEP("Major Version", ath9k_hw_def_get_eeprom_ver(ah));
+ PR_EEP("Minor Version", ath9k_hw_def_get_eeprom_rev(ah));
PR_EEP("Checksum", pBase->checksum);
PR_EEP("Length", pBase->length);
PR_EEP("RegDomain1", pBase->regDmn[0]);
@@ -391,27 +396,27 @@ static u32 ath9k_hw_def_get_eeprom(struc
case EEP_TXGAIN_TYPE:
return pBase->txGainType;
case EEP_OL_PWRCTRL:
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_19)
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_19)
return pBase->openLoopPwrCntl ? true : false;
else
return false;
case EEP_RC_CHAIN_MASK:
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_19)
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_19)
return pBase->rcChainMask;
else
return 0;
case EEP_DAC_HPWR_5G:
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_20)
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_20)
return pBase->dacHiPwrMode_5G;
else
return 0;
case EEP_FRAC_N_5G:
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_22)
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_22)
return pBase->frac_n_5g;
else
return 0;
case EEP_PWR_TABLE_OFFSET:
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_21)
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_21)
return pBase->pwr_table_offset;
else
return AR5416_PWR_TABLE_OFFSET_DB;
@@ -434,7 +439,7 @@ static void ath9k_hw_def_set_gain(struct
u8 txRxAttenLocal, int regChainOffset, int i)
{
ENABLE_REG_RMW_BUFFER(ah);
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_3) {
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_3) {
txRxAttenLocal = pModal->txRxAttenCh[i];
if (AR_SREV_9280_20_OR_LATER(ah)) {
@@ -603,7 +608,7 @@ static void ath9k_hw_def_set_board_value
pModal->thresh62);
}
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_2) {
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_2) {
REG_RMW_FIELD(ah, AR_PHY_RF_CTL2,
AR_PHY_TX_END_DATA_START,
pModal->txFrameToDataStart);
@@ -611,7 +616,7 @@ static void ath9k_hw_def_set_board_value
pModal->txFrameToPaOn);
}
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_3) {
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_3) {
if (IS_CHAN_HT40(chan))
REG_RMW_FIELD(ah, AR_PHY_SETTLING,
AR_PHY_SETTLING_SWITCH,
@@ -619,13 +624,14 @@ static void ath9k_hw_def_set_board_value
}
if (AR_SREV_9280_20_OR_LATER(ah) &&
- AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_19)
+ ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_19)
REG_RMW_FIELD(ah, AR_PHY_CCK_TX_CTRL,
AR_PHY_CCK_TX_CTRL_TX_DAC_SCALE_CCK,
pModal->miscBits);
- if (AR_SREV_9280_20(ah) && AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_20) {
+ if (AR_SREV_9280_20(ah) &&
+ ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_20) {
if (IS_CHAN_2GHZ(chan))
REG_RMW_FIELD(ah, AR_AN_TOP1, AR_AN_TOP1_DACIPMODE,
eep->baseEepHeader.dacLpMode);
@@ -796,8 +802,7 @@ static void ath9k_hw_set_def_power_cal_t
pwr_table_offset = ah->eep_ops->get_eeprom(ah, EEP_PWR_TABLE_OFFSET);
- if ((pEepData->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_2) {
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_2) {
pdGainOverlap_t2 =
pEepData->modalHeader[modalIdx].pdGainOverlap;
} else {
@@ -1169,10 +1174,8 @@ static void ath9k_hw_def_set_txpower(str
memset(ratesArray, 0, sizeof(ratesArray));
- if ((pEepData->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK) >=
- AR5416_EEP_MINOR_VER_2) {
+ if (ath9k_hw_def_get_eeprom_rev(ah) >= AR5416_EEP_MINOR_VER_2)
ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
- }
ath9k_hw_set_def_power_per_rate_table(ah, chan,
&ratesArray[0], cfgCtl,
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1236,8 +1236,9 @@ static u8 ath_get_rate_txpower(struct at
if (is_40) {
u8 power_ht40delta;
struct ar5416_eeprom_def *eep = &ah->eeprom.def;
+ u16 eeprom_rev = ah->eep_ops->get_eeprom_rev(ah);
- if (AR5416_VER_MASK >= AR5416_EEP_MINOR_VER_2) {
+ if (eeprom_rev >= AR5416_EEP_MINOR_VER_2) {
bool is_2ghz;
struct modal_eep_header *pmodal;
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