diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-06-06 10:06:29 +0530 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-06-19 02:16:59 +0100 |
| commit | 9fa72f6b1b0faa477a8317902e6f6eb2b32c832d (patch) | |
| tree | b2b76de8c042f9bd80eed8da6647cb2330b0fb7c | |
| parent | ee586238738e79c05ad7c079f4a0e907ed93dfbc (diff) | |
ath9k: Use minstrel rate control by default
commit 5efac94999ff218e0101f67a059e44abb4b0b523 upstream.
The ath9k rate control algorithm has various architectural
issues that make it a poor fit in scenarios like congested
environments etc.
An example: https://bugzilla.redhat.com/show_bug.cgi?id=927191
Change the default to minstrel which is more robust in such cases.
The ath9k RC code is left in the driver for now, maybe it can
be removed altogether later on.
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/rc.h | 2 |
4 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig index d9c08c619a3a..f4ed4d838439 100644 --- a/drivers/net/wireless/ath/ath9k/Kconfig +++ b/drivers/net/wireless/ath/ath9k/Kconfig @@ -50,13 +50,17 @@ config ATH9K_DEBUGFS Also required for changing debug message flags at run time. -config ATH9K_RATE_CONTROL +config ATH9K_LEGACY_RATE_CONTROL bool "Atheros ath9k rate control" depends on ATH9K - default y + default n ---help--- Say Y, if you want to use the ath9k specific rate control - module instead of minstrel_ht. + module instead of minstrel_ht. Be warned that there are various + issues with the ath9k RC and minstrel is a more robust algorithm. + Note that even if this option is selected, "ath9k_rate_control" + has to be passed to mac80211 using the module parameter, + ieee80211_default_rc_algo. config ATH9K_HTC tristate "Atheros HTC based wireless cards support" diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile index 36ed3c46fec6..1cdb24680c5a 100644 --- a/drivers/net/wireless/ath/ath9k/Makefile +++ b/drivers/net/wireless/ath/ath9k/Makefile @@ -5,7 +5,7 @@ ath9k-y += beacon.o \ recv.o \ xmit.o \ -ath9k-$(CONFIG_ATH9K_RATE_CONTROL) += rc.o +ath9k-$(CONFIG_ATH9K_LEGACY_RATE_CONTROL) += rc.o ath9k-$(CONFIG_ATH9K_PCI) += pci.o ath9k-$(CONFIG_ATH9K_AHB) += ahb.o ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 83fcf8969e75..ba6a49c8a43b 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -713,10 +713,6 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) sc->ant_rx = hw->wiphy->available_antennas_rx; sc->ant_tx = hw->wiphy->available_antennas_tx; -#ifdef CONFIG_ATH9K_RATE_CONTROL - hw->rate_control_algorithm = "ath9k_rate_control"; -#endif - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &sc->sbands[IEEE80211_BAND_2GHZ]; diff --git a/drivers/net/wireless/ath/ath9k/rc.h b/drivers/net/wireless/ath/ath9k/rc.h index b7a4bcd3eec7..e8e1901bb878 100644 --- a/drivers/net/wireless/ath/ath9k/rc.h +++ b/drivers/net/wireless/ath/ath9k/rc.h @@ -221,7 +221,7 @@ struct ath_rate_priv { struct ath_rc_stats rcstats[RATE_TABLE_SIZE]; }; -#ifdef CONFIG_ATH9K_RATE_CONTROL +#ifdef CONFIG_ATH9K_LEGACY_RATE_CONTROL int ath_rate_control_register(void); void ath_rate_control_unregister(void); #else |