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 28aeb9f..951dca1 100644 (file)
--- 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 5bd3fe6..a281ad3 100644 (file)
--- 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 98da553..06f99dc 100644 (file)
--- 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) {