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authorBing Zhao2012-11-05 16:59:15 -0800
committerJohn W. Linville2012-11-14 14:56:06 -0500
commit601216e12c65e131453941962f2a8f6e49a2a379 (patch)
treead311423f8a9f9007d451ac8a792bcc93486ebe9 /drivers
parent1993732e3bf9df032ea7582409be4f22d257a874 (diff)
mwifiex: process RX packets in SDIO IRQ thread directly
ksdioirqd has higher priority than kworker. Process RX packets in SDIO IRQ thread (ksdioirqd/mmcX) directly instead of deferring the work to kworker to avoid the extra latency. This improves TCP throughput 15~20% on an ARM platform with SDIO 2.0 controller. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/mwifiex/main.c1
-rw-r--r--drivers/net/wireless/mwifiex/sdio.c6
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 1afcd404a101..9c802ede9c3b 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -282,6 +282,7 @@ exit_main_proc:
mwifiex_shutdown_drv(adapter);
return ret;
}
+EXPORT_SYMBOL_GPL(mwifiex_main_process);
/*
* This function frees the adapter structure.
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 0d67333daa20..4fbbd611f630 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -905,8 +905,8 @@ static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
/*
* SDIO interrupt handler.
*
- * This function reads the interrupt status from firmware and assigns
- * the main process in workqueue which will handle the interrupt.
+ * This function reads the interrupt status from firmware and handles
+ * the interrupt in current thread (ksdioirqd) right away.
*/
static void
mwifiex_sdio_interrupt(struct sdio_func *func)
@@ -929,7 +929,7 @@ mwifiex_sdio_interrupt(struct sdio_func *func)
adapter->ps_state = PS_STATE_AWAKE;
mwifiex_interrupt_status(adapter);
- queue_work(adapter->workqueue, &adapter->main_work);
+ mwifiex_main_process(adapter);
}
/*