From: Ivo van Doorn <ivdoorn@gmail.com>
To: linux-wireless@vger.kernel.org
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Subject: [PATCH 09/13] rt2x00: Implement flush callback
Date: Thu, 4 Nov 2010 20:40:11 +0100 [thread overview]
Message-ID: <201011042040.12419.IvDoorn@gmail.com> (raw)
In-Reply-To: <201011042039.49521.IvDoorn@gmail.com>
Implement a basic flush callback function, which simply loops
over all TX queues and waits until all frames have been transmitted
and the status reports have been gathered.
At this moment we don't support dropping any frames during the
flush, but mac80211 will only send 'false' for this argument anyway,
so this is not important at this time.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
---
drivers/net/wireless/rt2x00/rt2400pci.c | 1 +
drivers/net/wireless/rt2x00/rt2500pci.c | 1 +
drivers/net/wireless/rt2x00/rt2500usb.c | 1 +
drivers/net/wireless/rt2x00/rt2800pci.c | 1 +
drivers/net/wireless/rt2x00/rt2800usb.c | 1 +
drivers/net/wireless/rt2x00/rt2x00.h | 1 +
drivers/net/wireless/rt2x00/rt2x00mac.c | 38 +++++++++++++++++++++++++++++++
drivers/net/wireless/rt2x00/rt61pci.c | 1 +
drivers/net/wireless/rt2x00/rt73usb.c | 1 +
9 files changed, 46 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index c94aa1e..bc1ae1e 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1612,6 +1612,7 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = {
.get_tsf = rt2400pci_get_tsf,
.tx_last_beacon = rt2400pci_tx_last_beacon,
.rfkill_poll = rt2x00mac_rfkill_poll,
+ .flush = rt2x00mac_flush,
};
static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index b69e55f..5475415 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1909,6 +1909,7 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = {
.get_tsf = rt2500pci_get_tsf,
.tx_last_beacon = rt2500pci_tx_last_beacon,
.rfkill_poll = rt2x00mac_rfkill_poll,
+ .flush = rt2x00mac_flush,
};
static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index f20ab79..478c4f1 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1801,6 +1801,7 @@ static const struct ieee80211_ops rt2500usb_mac80211_ops = {
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
.rfkill_poll = rt2x00mac_rfkill_poll,
+ .flush = rt2x00mac_flush,
};
static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 2c12b59..6dc61b7 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -943,6 +943,7 @@ static const struct ieee80211_ops rt2800pci_mac80211_ops = {
.get_tsf = rt2800_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
.ampdu_action = rt2800_ampdu_action,
+ .flush = rt2x00mac_flush,
};
static const struct rt2800_ops rt2800pci_rt2800_ops = {
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 3f44131..04dfedc 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -508,6 +508,7 @@ static const struct ieee80211_ops rt2800usb_mac80211_ops = {
.get_tsf = rt2800_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
.ampdu_action = rt2800_ampdu_action,
+ .flush = rt2x00mac_flush,
};
static const struct rt2800_ops rt2800usb_rt2800_ops = {
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 94fe589..42bd3a9 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -1133,6 +1133,7 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params);
void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
+void rt2x00mac_flush(struct ieee80211_hw *hw, bool drop);
/*
* Driver allocation handlers.
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index c3c206a..283a8d9 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -719,3 +719,41 @@ void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw)
wiphy_rfkill_set_hw_state(hw->wiphy, !active);
}
EXPORT_SYMBOL_GPL(rt2x00mac_rfkill_poll);
+
+void rt2x00mac_flush(struct ieee80211_hw *hw, bool drop)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ struct data_queue *queue;
+ unsigned int i = 0;
+
+ ieee80211_stop_queues(hw);
+
+ /*
+ * Run over all queues to kick them, this will force
+ * any pending frames to be transmitted.
+ */
+ tx_queue_for_each(rt2x00dev, queue) {
+ rt2x00dev->ops->lib->kick_tx_queue(queue);
+ }
+
+ /**
+ * All queues have been kicked, now wait for each queue
+ * to become empty. With a bit of luck, we only have to wait
+ * for the first queue to become empty, because while waiting
+ * for the that queue, the other queues will have transmitted
+ * all their frames as well (since they were already kicked).
+ */
+ tx_queue_for_each(rt2x00dev, queue) {
+ for (i = 0; i < 10; i++) {
+ if (rt2x00queue_empty(queue))
+ break;
+ msleep(100);
+ }
+
+ if (!rt2x00queue_empty(queue))
+ WARNING(rt2x00dev, "Failed to flush queue %d", queue->qid);
+ }
+
+ ieee80211_wake_queues(hw);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_flush);
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index fba9ee1..f01bff7 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2824,6 +2824,7 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = {
.conf_tx = rt61pci_conf_tx,
.get_tsf = rt61pci_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
+ .flush = rt2x00mac_flush,
};
static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 3c86f00..dcb9211 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2264,6 +2264,7 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = {
.conf_tx = rt73usb_conf_tx,
.get_tsf = rt73usb_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
+ .flush = rt2x00mac_flush,
};
static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
--
1.7.2.3
next prev parent reply other threads:[~2010-11-04 19:43 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 19:36 [PATCH 01/13] rt2x00: Add TXOP_CTRL_CFG register definition Ivo van Doorn
2010-11-04 19:37 ` [PATCH 02/13] rt2x00: Sync Tx and RX ring sizes with legacy drivers Ivo van Doorn
2010-11-04 19:37 ` [PATCH 03/13] rt2x00: Wait up to one second on rt2800 for WPDMA to be ready Ivo van Doorn
2010-11-04 19:38 ` [PATCH 04/13] rt2x00: Reduce tx descriptor size Ivo van Doorn
2010-11-04 19:38 ` [PATCH 05/13] rt2x00: Add unlikely to skb allocation failure check Ivo van Doorn
2010-11-04 19:38 ` [PATCH 06/13] rt2x00: Optimize rt2x00debug_dump_frame when frame dumping is not active Ivo van Doorn
2010-11-04 19:39 ` [PATCH 07/13] rt2x00: Rename rt2x00queue_timeout Ivo van Doorn
2010-11-04 19:39 ` [PATCH 08/13] rt2x00: Remove failsave from rt2x00usb_watchdog_tx_dma Ivo van Doorn
2010-11-04 19:40 ` Ivo van Doorn [this message]
2010-11-04 19:40 ` [PATCH 10/13] rt2x00: Fix MCU_SLEEP arguments Ivo van Doorn
2010-11-04 19:41 ` [PATCH 11/13] rt2x00: Fix crash on USB unplug Ivo van Doorn
2010-11-04 19:42 ` [PATCH 12/13] rt2x00: Fix hw crypto in AP mode for some devices Ivo van Doorn
2010-11-04 19:43 ` [PATCH 13/13] rt2x00: Fix comments in rt73usb.h and rt61pci.h Ivo van Doorn
2010-11-04 23:21 ` [PATCH 11/13] rt2x00: Fix crash on USB unplug Julian Calaby
2010-11-05 0:07 ` Blaise Gassend
2010-11-06 12:51 ` Ivo Van Doorn
2010-11-08 19:08 ` Blaise Gassend
2010-11-08 19:13 ` Ivo Van Doorn
2010-11-04 21:32 ` [PATCH 05/13] rt2x00: Add unlikely to skb allocation failure check Christian Lamparter
2010-11-05 7:23 ` Helmut Schaa
2010-11-05 7:52 ` Rafał Miłecki
2010-11-05 8:01 ` Helmut Schaa
2010-11-05 9:44 ` [PATCH 03/13] rt2x00: Wait up to one second on rt2800 for WPDMA to be ready Helmut Schaa
2010-11-05 9:52 ` Ivo Van Doorn
2010-11-05 9:56 ` Helmut Schaa
2010-11-05 10:07 ` Ivo Van Doorn
2010-11-10 19:40 ` John W. Linville
2010-11-13 12:56 ` Ivo Van Doorn
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