From d8ace8978a02ab24f74559c525475c7915eac74f Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Fri, 8 Jan 2010 20:22:55 +0000 Subject: ar71xx: add NAPI statistics to the ag71xx driver SVN-Revision: 19079 --- .../ar71xx/files/drivers/net/ag71xx/ag71xx_main.c | 28 ++++++++++++---------- 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c') diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c index 97a677ce61..884366fd35 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c @@ -608,10 +608,10 @@ static void ag71xx_restart_work_func(struct work_struct *work) ag71xx_open(ag->dev); } -static void ag71xx_tx_packets(struct ag71xx *ag) +static int ag71xx_tx_packets(struct ag71xx *ag) { struct ag71xx_ring *ring = &ag->tx_ring; - unsigned int sent; + int sent; DBG("%s: processing TX ring\n", ag->dev->name); @@ -641,6 +641,7 @@ static void ag71xx_tx_packets(struct ag71xx *ag) if ((ring->curr - ring->dirty) < AG71XX_TX_THRES_WAKEUP) netif_wake_queue(ag->dev); + return sent; } static int ag71xx_rx_packets(struct ag71xx *ag, int limit) @@ -711,13 +712,16 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) struct ag71xx_ring *rx_ring; unsigned long flags; u32 status; - int done; + int tx_done; + int rx_done; pdata->ddr_flush(); - ag71xx_tx_packets(ag); + tx_done = ag71xx_tx_packets(ag); DBG("%s: processing RX ring\n", dev->name); - done = ag71xx_rx_packets(ag, limit); + rx_done = ag71xx_rx_packets(ag, limit); + + ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done); rx_ring = &ag->rx_ring; if (rx_ring->buf[rx_ring->dirty % AG71XX_RX_RING_SIZE].skb == NULL) @@ -732,7 +736,7 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE); } - if (done < limit) { + if (rx_done < limit) { if (status & RX_STATUS_PR) goto more; @@ -740,8 +744,8 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) if (status & TX_STATUS_PS) goto more; - DBG("%s: disable polling mode, done=%d, limit=%d\n", - dev->name, done, limit); + DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n", + dev->name, rx_done, tx_done, limit); napi_complete(napi); @@ -749,13 +753,13 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) spin_lock_irqsave(&ag->lock, flags); ag71xx_int_enable(ag, AG71XX_INT_POLL); spin_unlock_irqrestore(&ag->lock, flags); - return done; + return rx_done; } more: - DBG("%s: stay in polling mode, done=%d, limit=%d\n", - dev->name, done, limit); - return done; + DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n", + dev->name, rx_done, tx_done, limit); + return rx_done; oom: if (netif_msg_rx_err(ag)) -- cgit v1.2.3