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authorStephen Hemminger <shemminger@vyatta.com>2009-06-17 07:30:36 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-17 18:46:52 -0700
commitbf15fe996e050332c018cf63dd51288b081cc556 (patch)
tree60aa23279726e73f4649a0039e9f536f1ef72e1b
parent6c83504ff24f4a6bf28ad865e7c0619b17349e08 (diff)
downloadlinux-2.6.34-ux500-bf15fe996e050332c018cf63dd51288b081cc556.tar.gz
sky2: receive counter update
Since it is likely that there are multiple packets received per interrupt, only update the receive counters once after all packets are processed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/sky2.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index fd7accf8f30..1b8de4518ad 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2357,11 +2357,25 @@ static inline void sky2_tx_done(struct net_device *dev, u16 last)
}
}
+static inline void sky2_rx_done(struct sky2_hw *hw, unsigned port,
+ unsigned packets, unsigned bytes)
+{
+ if (packets) {
+ struct net_device *dev = hw->dev[port];
+
+ dev->stats.rx_packets += packets;
+ dev->stats.rx_bytes += bytes;
+ dev->last_rx = jiffies;
+ sky2_rx_update(netdev_priv(dev), rxqaddr[port]);
+ }
+}
+
/* Process status response ring */
static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
{
int work_done = 0;
- unsigned rx[2] = { 0, 0 };
+ unsigned int total_bytes[2] = { 0 };
+ unsigned int total_packets[2] = { 0 };
rmb();
do {
@@ -2388,7 +2402,8 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
le->opcode = 0;
switch (opcode & ~HW_OWNER) {
case OP_RXSTAT:
- ++rx[port];
+ total_packets[port]++;
+ total_bytes[port] += length;
skb = sky2_receive(dev, length, status);
if (unlikely(!skb)) {
dev->stats.rx_dropped++;
@@ -2406,9 +2421,6 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
}
skb->protocol = eth_type_trans(skb, dev);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
- dev->last_rx = jiffies;
#ifdef SKY2_VLAN_TAG_USED
if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
@@ -2487,11 +2499,8 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
exit_loop:
- if (rx[0])
- sky2_rx_update(netdev_priv(hw->dev[0]), Q_R1);
-
- if (rx[1])
- sky2_rx_update(netdev_priv(hw->dev[1]), Q_R2);
+ sky2_rx_done(hw, 0, total_packets[0], total_bytes[0]);
+ sky2_rx_done(hw, 1, total_packets[1], total_bytes[1]);
return work_done;
}