From e9fa0b9f3ae0711dd07d61b482f6bdb6446b4f9c Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Wed, 10 Jan 2018 21:46:46 +0100 Subject: ath9k, ath10k(-ct): move spectral scan support under a separate config symbol Backport patches that separate spectral scan support from general debugfs support of ath9k/ath10k; this allows to remove the dependency on KERNEL_RELAY from these driver packages even with debugfs enabled and avoids the memory footprint of the relay buffers allocated by ath9k/ath10k even when they aren't used at all. The KERNEL_RELAY dependency is moved to a new config symbol that enables spectral scan support in these drivers. Signed-off-by: Matthias Schiffer --- package/kernel/mac80211/Makefile | 17 +++- ...spectral-scan-support-under-a-separate-co.patch | 103 +++++++++++++++++++++ ...-spectral-scan-support-under-a-separate-c.patch | 91 ++++++++++++++++++ 3 files changed, 207 insertions(+), 4 deletions(-) create mode 100644 package/kernel/mac80211/patches/321-0001-ath9k-move-spectral-scan-support-under-a-separate-co.patch create mode 100644 package/kernel/mac80211/patches/321-0002-ath10k-move-spectral-scan-support-under-a-separate-c.patch (limited to 'package/kernel/mac80211') diff --git a/package/kernel/mac80211/Makefile b/package/kernel/mac80211/Makefile index 385bea4d2f..cf17c9f4fe 100644 --- a/package/kernel/mac80211/Makefile +++ b/package/kernel/mac80211/Makefile @@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk PKG_NAME:=mac80211 PKG_VERSION:=2017-11-01 -PKG_RELEASE:=1 +PKG_RELEASE:=2 PKG_SOURCE_URL:=http://mirror2.openwrt.org/sources PKG_HASH:=8437ab7886b988c8152e7a4db30b7f41009e49a3b2cb863edd05da1ecd7eb05a @@ -55,6 +55,7 @@ PKG_CONFIG_DEPENDS:= \ CONFIG_PACKAGE_MAC80211_TRACING \ CONFIG_PACKAGE_ATH_DEBUG \ CONFIG_PACKAGE_ATH_DFS \ + CONFIG_PACKAGE_ATH_SPECTRAL \ CONFIG_PACKAGE_B43_DEBUG \ CONFIG_PACKAGE_B43_PIO \ CONFIG_PACKAGE_B43_PHY_G \ @@ -188,6 +189,13 @@ define KernelPackage/ath/config Select this option if you want to use such channels. + config PACKAGE_ATH_SPECTRAL + bool "Atheros spectral scan support" + depends on PACKAGE_ATH_DEBUG + select KERNEL_RELAY + help + Say Y to enable access to the FFT/spectral data via debugfs. + endif endef @@ -222,7 +230,7 @@ define KernelPackage/ath6kl TITLE:=Atheros FullMAC wireless devices (common code for ath6kl_sdio and ath6kl_usb) URL:=https://wireless.wiki.kernel.org/en/users/drivers/ath6kl HIDDEN:=1 - DEPENDS+= +kmod-ath +@DRIVER_11N_SUPPORT +@KERNEL_RELAY + DEPENDS+= +kmod-ath +@DRIVER_11N_SUPPORT FILES:= $(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath6kl/ath6kl_core.ko endef @@ -259,7 +267,7 @@ define KernelPackage/ath9k-common TITLE:=Atheros 802.11n wireless devices (common code for ath9k and ath9k_htc) URL:=https://wireless.wiki.kernel.org/en/users/drivers/ath9k HIDDEN:=1 - DEPENDS+= @PCI_SUPPORT||USB_SUPPORT||TARGET_ar71xx +kmod-ath +@DRIVER_11N_SUPPORT +@DRIVER_11W_SUPPORT +@KERNEL_RELAY + DEPENDS+= @PCI_SUPPORT||USB_SUPPORT||TARGET_ar71xx +kmod-ath +@DRIVER_11N_SUPPORT +@DRIVER_11W_SUPPORT FILES:= \ $(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath9k/ath9k_common.ko \ $(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath9k/ath9k_hw.ko @@ -316,7 +324,7 @@ define KernelPackage/ath10k $(call KernelPackage/mac80211/Default) TITLE:=Atheros 802.11ac wireless cards support URL:=https://wireless.wiki.kernel.org/en/users/drivers/ath10k - DEPENDS+= @PCI_SUPPORT +kmod-ath +@DRIVER_11N_SUPPORT +@DRIVER_11AC_SUPPORT +@DRIVER_11W_SUPPORT +@KERNEL_RELAY + DEPENDS+= @PCI_SUPPORT +kmod-ath +@DRIVER_11N_SUPPORT +@DRIVER_11AC_SUPPORT +@DRIVER_11W_SUPPORT FILES:= \ $(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath10k/ath10k_core.ko \ $(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath10k/ath10k_pci.ko @@ -1571,6 +1579,7 @@ config-$(call config_package,airo) += AIRO config-$(call config_package,ath) += ATH_CARDS ATH_COMMON ATH_REG_DYNAMIC_USER_REG_HINTS config-$(CONFIG_PACKAGE_ATH_DEBUG) += ATH_DEBUG ATH10K_DEBUG ATH9K_STATION_STATISTICS config-$(CONFIG_PACKAGE_ATH_DFS) += ATH9K_DFS_CERTIFIED ATH10K_DFS_CERTIFIED +config-$(CONFIG_PACKAGE_ATH_SPECTRAL) += ATH9K_COMMON_SPECTRAL ATH10K_SPECTRAL config-$(call config_package,ath9k) += ATH9K config-$(call config_package,ath9k-common) += ATH9K_COMMON diff --git a/package/kernel/mac80211/patches/321-0001-ath9k-move-spectral-scan-support-under-a-separate-co.patch b/package/kernel/mac80211/patches/321-0001-ath9k-move-spectral-scan-support-under-a-separate-co.patch new file mode 100644 index 0000000000..703051fe19 --- /dev/null +++ b/package/kernel/mac80211/patches/321-0001-ath9k-move-spectral-scan-support-under-a-separate-co.patch @@ -0,0 +1,103 @@ +From 9df7ddc3ed25b7d3473f117a0680b9418adb5753 Mon Sep 17 00:00:00 2001 +Message-Id: <9df7ddc3ed25b7d3473f117a0680b9418adb5753.1515610034.git.mschiffer@universe-factory.net> +From: Matthias Schiffer +Date: Mon, 27 Nov 2017 18:56:22 +0100 +Subject: [PATCH 1/2] ath9k: move spectral scan support under a separate config + symbol + +At the moment, spectral scan support, and with it RELAY, is always enabled +with ATH9K[_HTC]_DEBUGFS. Spectral scan support is currently the only user +of RELAY in ath9k, and it unconditionally reserves a relay channel. + +Having debugfs support in ath9k is often useful even on very small embedded +routers, where we'd rather like to avoid the code size and RAM usage of the +relay support. + +Signed-off-by: Matthias Schiffer +Signed-off-by: Kalle Valo +--- + drivers/net/wireless/ath/ath9k/Kconfig | 14 ++++++++++---- + drivers/net/wireless/ath/ath9k/Makefile | 4 ++-- + drivers/net/wireless/ath/ath9k/common-spectral.h | 4 ++-- + 3 files changed, 14 insertions(+), 8 deletions(-) + +--- a/drivers/net/wireless/ath/ath9k/Kconfig ++++ b/drivers/net/wireless/ath/ath9k/Kconfig +@@ -64,13 +64,12 @@ config ATH9K_DEBUGFS + depends on ATH9K && DEBUG_FS + select MAC80211_DEBUGFS + select ATH9K_COMMON_DEBUG +- depends on RELAY + ---help--- + Say Y, if you need access to ath9k's statistics for + interrupts, rate control, etc. + +- Also required for changing debug message flags at run time. +- As well as access to the FFT/spectral data and TX99. ++ Also required for changing debug message flags at run time and for ++ TX99. + + config ATH9K_STATION_STATISTICS + bool "Detailed station statistics" +@@ -181,7 +180,6 @@ config ATH9K_HTC_DEBUGFS + bool "Atheros ath9k_htc debugging" + depends on ATH9K_HTC && DEBUG_FS + select ATH9K_COMMON_DEBUG +- depends on RELAY + ---help--- + Say Y, if you need access to ath9k_htc's statistics. + As well as access to the FFT/spectral data. +@@ -197,3 +195,11 @@ config ATH9K_HWRNG + + Say Y, feeds the entropy directly from the WiFi driver to the input + pool. ++ ++config ATH9K_COMMON_SPECTRAL ++ bool "Atheros ath9k/ath9k_htc spectral scan support" ++ depends on ATH9K_DEBUGFS || ATH9K_HTC_DEBUGFS ++ depends on RELAY ++ default n ++ ---help--- ++ Say Y to enable access to the FFT/spectral data via debugfs. +--- a/drivers/net/wireless/ath/ath9k/Makefile ++++ b/drivers/net/wireless/ath/ath9k/Makefile +@@ -61,8 +61,8 @@ ath9k_common-y:= common.o \ + common-init.o \ + common-beacon.o \ + +-ath9k_common-$(CPTCFG_ATH9K_COMMON_DEBUG) += common-debug.o \ +- common-spectral.o ++ath9k_common-$(CPTCFG_ATH9K_COMMON_DEBUG) += common-debug.o ++ath9k_common-$(CPTCFG_ATH9K_COMMON_SPECTRAL) += common-spectral.o + + ath9k_htc-y += htc_hst.o \ + hif_usb.o \ +--- a/drivers/net/wireless/ath/ath9k/common-spectral.h ++++ b/drivers/net/wireless/ath/ath9k/common-spectral.h +@@ -151,7 +151,7 @@ static inline u8 spectral_bitmap_weight( + return bins[0] & 0x3f; + } + +-#ifdef CPTCFG_ATH9K_COMMON_DEBUG ++#ifdef CPTCFG_ATH9K_COMMON_SPECTRAL + void ath9k_cmn_spectral_init_debug(struct ath_spec_scan_priv *spec_priv, struct dentry *debugfs_phy); + void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv); + +@@ -183,6 +183,6 @@ static inline int ath_cmn_process_fft(st + { + return 0; + } +-#endif /* CPTCFG_ATH9K_COMMON_DEBUG */ ++#endif /* CPTCFG_ATH9K_COMMON_SPECTRAL */ + + #endif /* SPECTRAL_H */ +--- a/local-symbols ++++ b/local-symbols +@@ -116,6 +116,7 @@ ATH9K_PCOEM= + ATH9K_HTC= + ATH9K_HTC_DEBUGFS= + ATH9K_HWRNG= ++ATH9K_COMMON_SPECTRAL= + CARL9170= + CARL9170_LEDS= + CARL9170_DEBUGFS= diff --git a/package/kernel/mac80211/patches/321-0002-ath10k-move-spectral-scan-support-under-a-separate-c.patch b/package/kernel/mac80211/patches/321-0002-ath10k-move-spectral-scan-support-under-a-separate-c.patch new file mode 100644 index 0000000000..604a6f1585 --- /dev/null +++ b/package/kernel/mac80211/patches/321-0002-ath10k-move-spectral-scan-support-under-a-separate-c.patch @@ -0,0 +1,91 @@ +From 42e01cb9cb109fb0bb4743f6c54d6aa67ac39b61 Mon Sep 17 00:00:00 2001 +Message-Id: <42e01cb9cb109fb0bb4743f6c54d6aa67ac39b61.1515610034.git.mschiffer@universe-factory.net> +In-Reply-To: <9df7ddc3ed25b7d3473f117a0680b9418adb5753.1515610034.git.mschiffer@universe-factory.net> +References: <9df7ddc3ed25b7d3473f117a0680b9418adb5753.1515610034.git.mschiffer@universe-factory.net> +From: Matthias Schiffer +Date: Mon, 27 Nov 2017 18:56:23 +0100 +Subject: [PATCH 2/2] ath10k: move spectral scan support under a separate + config symbol + +At the moment, spectral scan support, and with it RELAY, is always enabled +with ATH10K_DEBUGFS. Spectral scan support is currently the only user of +RELAY in ath10k, and it unconditionally reserves a relay channel. + +Having debugfs support in ath10k is often useful even on very small +embedded routers, where we'd rather like to avoid the code size and RAM +usage of the relay support. While ath10k-based devices usually have more +resources than ath9k-based ones, it makes sense to keep the configuration +symmetric to ath9k, so the same base kernel without RELAY can be used for +both ath9k and ath10k hardware. + +Signed-off-by: Matthias Schiffer +Signed-off-by: Kalle Valo +--- + drivers/net/wireless/ath/ath10k/Kconfig | 9 ++++++++- + drivers/net/wireless/ath/ath10k/Makefile | 2 +- + drivers/net/wireless/ath/ath10k/spectral.h | 4 ++-- + 3 files changed, 11 insertions(+), 4 deletions(-) + +--- a/drivers/net/wireless/ath/ath10k/Kconfig ++++ b/drivers/net/wireless/ath/ath10k/Kconfig +@@ -51,12 +51,19 @@ config ATH10K_DEBUG + config ATH10K_DEBUGFS + bool "Atheros ath10k debugfs support" + depends on ATH10K && DEBUG_FS +- depends on RELAY + ---help--- + Enabled debugfs support + + If unsure, say Y to make it easier to debug problems. + ++config ATH10K_SPECTRAL ++ bool "Atheros ath10k spectral scan support" ++ depends on ATH10K_DEBUGFS ++ depends on RELAY ++ default n ++ ---help--- ++ Say Y to enable access to the FFT/spectral data via debugfs. ++ + config ATH10K_TRACING + depends on !KERNEL_3_4 + bool "Atheros ath10k tracing support" +--- a/drivers/net/wireless/ath/ath10k/Makefile ++++ b/drivers/net/wireless/ath/ath10k/Makefile +@@ -14,7 +14,7 @@ ath10k_core-y += mac.o \ + p2p.o \ + swap.o + +-ath10k_core-$(CPTCFG_ATH10K_DEBUGFS) += spectral.o ++ath10k_core-$(CPTCFG_ATH10K_SPECTRAL) += spectral.o + ath10k_core-$(CPTCFG_NL80211_TESTMODE) += testmode.o + ath10k_core-$(CPTCFG_ATH10K_TRACING) += trace.o + ath10k_core-$(CPTCFG_ATH10K_THERMAL) += thermal.o +--- a/drivers/net/wireless/ath/ath10k/spectral.h ++++ b/drivers/net/wireless/ath/ath10k/spectral.h +@@ -44,7 +44,7 @@ enum ath10k_spectral_mode { + SPECTRAL_MANUAL, + }; + +-#ifdef CPTCFG_ATH10K_DEBUGFS ++#ifdef CPTCFG_ATH10K_SPECTRAL + + int ath10k_spectral_process_fft(struct ath10k *ar, + struct wmi_phyerr_ev_arg *phyerr, +@@ -85,6 +85,6 @@ static inline void ath10k_spectral_destr + { + } + +-#endif /* CPTCFG_ATH10K_DEBUGFS */ ++#endif /* CPTCFG_ATH10K_SPECTRAL */ + + #endif /* SPECTRAL_H */ +--- a/local-symbols ++++ b/local-symbols +@@ -140,6 +140,7 @@ ATH10K_SDIO= + ATH10K_USB= + ATH10K_DEBUG= + ATH10K_DEBUGFS= ++ATH10K_SPECTRAL= + ATH10K_TRACING= + ATH10K_DFS_CERTIFIED= + WCN36XX= -- cgit v1.2.3