From: Kalle Valo <kvalo@codeaurora.org>
Date: Tue, 29 Sep 2020 17:15:33 +0000 (+0300)
Subject: ath11k: disable monitor mode on QCA6390
X-Git-Tag: baikal/mips/sdk5.9~12462^2~82^2^2~17
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=cb5c933a8b3e2ea9b2b994b5fb00ec062673a931;p=kernel.git

ath11k: disable monitor mode on QCA6390

QCA6390 does not support monitor mode at the moment so disable it altogether,
using a hack as mac80211 does not support disabling it otherwise. Add a boolean
to hw_params to know if hardware supports monitor mode.

IPQ8074 continues to support monitor mode normally.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601399736-3210-6-git-send-email-kvalo@codeaurora.org
---

diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 28aeb9fe602b3..951dca1b66b40 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -62,6 +62,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
 		.interface_modes = BIT(NL80211_IFTYPE_STATION) |
 					BIT(NL80211_IFTYPE_AP) |
 					BIT(NL80211_IFTYPE_MESH_POINT),
+		.supports_monitor = true,
 	},
 	{
 		.hw_rev = ATH11K_HW_IPQ6018_HW10,
@@ -96,6 +97,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
 		.interface_modes = BIT(NL80211_IFTYPE_STATION) |
 					BIT(NL80211_IFTYPE_AP) |
 					BIT(NL80211_IFTYPE_MESH_POINT),
+		.supports_monitor = true,
 	},
 	{
 		.name = "qca6390 hw2.0",
@@ -129,6 +131,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
 
 		.interface_modes = BIT(NL80211_IFTYPE_STATION) |
 					BIT(NL80211_IFTYPE_AP),
+		.supports_monitor = false,
 	},
 };
 
diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h
index 5bd3fe618dd8e..a281ad3bdf043 100644
--- a/drivers/net/wireless/ath/ath11k/hw.h
+++ b/drivers/net/wireless/ath/ath11k/hw.h
@@ -158,6 +158,7 @@ struct ath11k_hw_params {
 	u8 spectral_fft_sz;
 
 	u16 interface_modes;
+	bool supports_monitor;
 };
 
 struct ath11k_hw_ops {
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 98da5536ee826..06f99dcaba871 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -6248,6 +6248,14 @@ static int __ath11k_mac_register(struct ath11k *ar)
 		goto err_free_if_combs;
 	}
 
+	if (!ab->hw_params.supports_monitor)
+		/* There's a race between calling ieee80211_register_hw()
+		 * and here where the monitor mode is enabled for a little
+		 * while. But that time is so short and in practise it make
+		 * a difference in real life.
+		 */
+		ar->hw->wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MONITOR);
+
 	/* Apply the regd received during initialization */
 	ret = ath11k_regd_update(ar, true);
 	if (ret) {