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wil6210: interrupt statistics

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Track number of interrupts and Tx/Rx packets;
expose through debugfs 'info'. Reset upon read.
Used to analyse effectivness of interrupt coalescing and NAPI.
Read twice with some interval like
cat info > /dev/null; sleep 1; cat info

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Kondratiev
2014-06-16 19:37:22 +03:00
committed by John W. Linville
parent 84bb29b7ab
commit be299858d0
3 changed files with 14 additions and 0 deletions
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2
drivers/net/wireless/ath/wil6210/interrupt.c
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@@ -208,6 +208,7 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie)
/* Rx IRQ will be enabled when NAPI processing finished */
atomic_inc(&wil->isr_count_rx);
return IRQ_HANDLED;
}
@@ -246,6 +247,7 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie)
/* Tx IRQ will be enabled when NAPI processing finished */
atomic_inc(&wil->isr_count_tx);
return IRQ_HANDLED;
}