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92 lines
3.0 KiB
92 lines
3.0 KiB
From be8cce96f14dc925ecfb702be0392a52cf78adb5 Mon Sep 17 00:00:00 2001
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From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
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Date: Wed, 23 May 2018 11:09:09 +0300
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Subject: [PATCH] ath10k: add support to configure channel dwell time
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Configure channel dwell time from duration of the scan request
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received from mac80211 when the duration is non-zero. When the
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scan request does not have duration value, use the default ones,
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the current implementation.
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Corresponding flag NL80211_EXT_FEATURE_SET_SCAN_DWELL is
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advertized.
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Supported Chipsets:
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-QCA988X/QCA9887 PCI
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-QCA99X0/QCA9984/QCA9888/QCA4019 PCI
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-QCA6174/QCA9377 PCI/USB/SDIO
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-WCN3990 SNOC
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Tested on QCA9984 with firmware ver 10.4-3.6-0010
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Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/ath/ath10k/core.h | 1 +
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drivers/net/wireless/ath/ath10k/mac.c | 23 ++++++++++++++++++++---
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2 files changed, 21 insertions(+), 3 deletions(-)
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--- a/drivers/net/wireless/ath/ath10k/core.h
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+++ b/drivers/net/wireless/ath/ath10k/core.h
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@@ -43,6 +43,7 @@
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#define WO(_f) ((_f##_OFFSET) >> 2)
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#define ATH10K_SCAN_ID 0
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+#define ATH10K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD 10 /* msec */
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#define WMI_READY_TIMEOUT (5 * HZ)
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#define ATH10K_FLUSH_TIMEOUT_HZ (5 * HZ)
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#define ATH10K_CONNECTION_LOSS_HZ (3 * HZ)
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--- a/drivers/net/wireless/ath/ath10k/mac.c
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+++ b/drivers/net/wireless/ath/ath10k/mac.c
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@@ -5597,6 +5597,7 @@ static int ath10k_hw_scan(struct ieee802
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struct wmi_start_scan_arg arg;
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int ret = 0;
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int i;
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+ u32 scan_timeout;
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mutex_lock(&ar->conf_mutex);
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@@ -5647,6 +5648,22 @@ static int ath10k_hw_scan(struct ieee802
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arg.channels[i] = req->channels[i]->center_freq;
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}
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+ /* if duration is set, default dwell times will be overwritten */
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+ if (req->duration) {
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+ arg.dwell_time_active = req->duration;
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+ arg.dwell_time_passive = req->duration;
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+ arg.burst_duration_ms = req->duration;
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+
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+ scan_timeout = min_t(u32, arg.max_rest_time *
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+ (arg.n_channels - 1) + (req->duration +
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+ ATH10K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD) *
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+ arg.n_channels, arg.max_scan_time + 200);
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+
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+ } else {
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+ /* Add a 200ms margin to account for event/command processing */
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+ scan_timeout = arg.max_scan_time + 200;
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+ }
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+
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ret = ath10k_start_scan(ar, &arg);
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if (ret) {
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ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
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@@ -5655,10 +5672,8 @@ static int ath10k_hw_scan(struct ieee802
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spin_unlock_bh(&ar->data_lock);
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}
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- /* Add a 200ms margin to account for event/command processing */
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ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
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- msecs_to_jiffies(arg.max_scan_time +
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- 200));
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+ msecs_to_jiffies(scan_timeout));
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exit:
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mutex_unlock(&ar->conf_mutex);
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@@ -8267,6 +8282,8 @@ int ath10k_mac_register(struct ath10k *a
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}
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wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
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+ wiphy_ext_feature_set(ar->hw->wiphy,
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+ NL80211_EXT_FEATURE_SET_SCAN_DWELL);
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/*
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* on LL hardware queues are managed entirely by the FW
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