57 lines
1.8 KiB
Diff
57 lines
1.8 KiB
Diff
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
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Date: Fri, 17 Oct 2014 07:40:15 +0530
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Subject: [PATCH] ath9k: Use configurable timeout for flush
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The timeout value for flushing the TX queues
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is hardcoded at 200ms right now. Use a channel
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context-specific value instead to allow adjustments
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to the timeout in case MCC is enabled.
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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
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---
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--- a/drivers/net/wireless/ath/ath9k/ath9k.h
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+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
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@@ -345,6 +345,7 @@ struct ath_chanctx {
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u64 tsf_val;
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u32 last_beacon;
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+ int flush_timeout;
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u16 txpower;
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bool offchannel;
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bool stopped;
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--- a/drivers/net/wireless/ath/ath9k/channel.c
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+++ b/drivers/net/wireless/ath/ath9k/channel.c
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@@ -117,6 +117,7 @@ void ath_chanctx_init(struct ath_softc *
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cfg80211_chandef_create(&ctx->chandef, chan, NL80211_CHAN_HT20);
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INIT_LIST_HEAD(&ctx->vifs);
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ctx->txpower = ATH_TXPOWER_MAX;
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+ ctx->flush_timeout = HZ / 5; /* 200ms */
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for (j = 0; j < ARRAY_SIZE(ctx->acq); j++)
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INIT_LIST_HEAD(&ctx->acq[j]);
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}
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -2034,7 +2034,7 @@ void __ath9k_flush(struct ieee80211_hw *
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struct ath_softc *sc = hw->priv;
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struct ath_hw *ah = sc->sc_ah;
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struct ath_common *common = ath9k_hw_common(ah);
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- int timeout = HZ / 5; /* 200 ms */
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+ int timeout;
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bool drain_txq;
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cancel_delayed_work_sync(&sc->tx_complete_work);
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@@ -2049,6 +2049,13 @@ void __ath9k_flush(struct ieee80211_hw *
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return;
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}
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+ spin_lock_bh(&sc->chan_lock);
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+ timeout = sc->cur_chan->flush_timeout;
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+ spin_unlock_bh(&sc->chan_lock);
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+
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+ ath_dbg(common, CHAN_CTX,
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+ "Flush timeout: %d\n", jiffies_to_msecs(timeout));
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+
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if (wait_event_timeout(sc->tx_wait, !ath9k_has_tx_pending(sc),
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timeout) > 0)
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drop = false;
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