[NET] drivers/net: statistics cleanup #1 -- save memory and shrink code
We now have struct net_device_stats embedded in struct net_device,
and the default ->get_stats() hook does the obvious thing for us.
Run through drivers/net/* and remove the driver-local storage of
statistics, and driver-local ->get_stats() hook where applicable.
This was just the low-hanging fruit in drivers/net; plenty more drivers
remain to be updated.
[ Resolved conflicts with napi_struct changes and fix sunqe build
regression... -DaveM ]
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/pci-skeleton.c b/drivers/net/pci-skeleton.c
index a4b1648..7dace63 100644
--- a/drivers/net/pci-skeleton.c
+++ b/drivers/net/pci-skeleton.c
@@ -457,7 +457,6 @@
void *mmio_addr;
int drv_flags;
struct pci_dev *pci_dev;
- struct net_device_stats stats;
struct timer_list timer; /* Media selection timer. */
unsigned char *rx_ring;
unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */
@@ -505,7 +504,6 @@
static irqreturn_t netdrv_interrupt (int irq, void *dev_instance);
static int netdrv_close (struct net_device *dev);
static int netdrv_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
-static struct net_device_stats *netdrv_get_stats (struct net_device *dev);
static void netdrv_set_rx_mode (struct net_device *dev);
static void netdrv_hw_start (struct net_device *dev);
@@ -775,7 +773,6 @@
dev->open = netdrv_open;
dev->hard_start_xmit = netdrv_start_xmit;
dev->stop = netdrv_close;
- dev->get_stats = netdrv_get_stats;
dev->set_multicast_list = netdrv_set_rx_mode;
dev->do_ioctl = netdrv_ioctl;
dev->tx_timeout = netdrv_tx_timeout;
@@ -1276,7 +1273,7 @@
if (rp->skb) {
dev_kfree_skb (rp->skb);
rp->skb = NULL;
- tp->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
}
}
}
@@ -1389,25 +1386,25 @@
/* There was an major error, log it. */
DPRINTK ("%s: Transmit error, Tx status %8.8x.\n",
dev->name, txstatus);
- tp->stats.tx_errors++;
+ dev->stats.tx_errors++;
if (txstatus & TxAborted) {
- tp->stats.tx_aborted_errors++;
+ dev->stats.tx_aborted_errors++;
NETDRV_W32 (TxConfig, TxClearAbt | (TX_DMA_BURST << TxDMAShift));
}
if (txstatus & TxCarrierLost)
- tp->stats.tx_carrier_errors++;
+ dev->stats.tx_carrier_errors++;
if (txstatus & TxOutOfWindow)
- tp->stats.tx_window_errors++;
+ dev->stats.tx_window_errors++;
} else {
if (txstatus & TxUnderrun) {
/* Add 64 to the Tx FIFO threshold. */
if (tp->tx_flag < 0x00300000)
tp->tx_flag += 0x00020000;
- tp->stats.tx_fifo_errors++;
+ dev->stats.tx_fifo_errors++;
}
- tp->stats.collisions += (txstatus >> 24) & 15;
- tp->stats.tx_bytes += txstatus & 0x7ff;
- tp->stats.tx_packets++;
+ dev->stats.collisions += (txstatus >> 24) & 15;
+ dev->stats.tx_bytes += txstatus & 0x7ff;
+ dev->stats.tx_packets++;
}
/* Free the original skb. */
@@ -1460,13 +1457,13 @@
dev->name, rx_status);
/* A.C.: The chip hangs here. */
}
- tp->stats.rx_errors++;
+ dev->stats.rx_errors++;
if (rx_status & (RxBadSymbol | RxBadAlign))
- tp->stats.rx_frame_errors++;
+ dev->stats.rx_frame_errors++;
if (rx_status & (RxRunt | RxTooLong))
- tp->stats.rx_length_errors++;
+ dev->stats.rx_length_errors++;
if (rx_status & RxCRCErr)
- tp->stats.rx_crc_errors++;
+ dev->stats.rx_crc_errors++;
/* Reset the receiver, based on RealTek recommendation. (Bug?) */
tp->cur_rx = 0;
@@ -1572,13 +1569,13 @@
skb->protocol = eth_type_trans (skb, dev);
netif_rx (skb);
dev->last_rx = jiffies;
- tp->stats.rx_bytes += pkt_size;
- tp->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_size;
+ dev->stats.rx_packets++;
} else {
printk (KERN_WARNING
"%s: Memory squeeze, dropping packet.\n",
dev->name);
- tp->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
}
cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
@@ -1607,7 +1604,7 @@
assert (ioaddr != NULL);
/* Update the error count. */
- tp->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
+ dev->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
NETDRV_W32 (RxMissed, 0);
if ((status & RxUnderrun) && link_changed &&
@@ -1628,14 +1625,14 @@
/* XXX along with netdrv_rx_err, are we double-counting errors? */
if (status &
(RxUnderrun | RxOverflow | RxErr | RxFIFOOver))
- tp->stats.rx_errors++;
+ dev->stats.rx_errors++;
if (status & (PCSTimeout))
- tp->stats.rx_length_errors++;
+ dev->stats.rx_length_errors++;
if (status & (RxUnderrun | RxFIFOOver))
- tp->stats.rx_fifo_errors++;
+ dev->stats.rx_fifo_errors++;
if (status & RxOverflow) {
- tp->stats.rx_over_errors++;
+ dev->stats.rx_over_errors++;
tp->cur_rx = NETDRV_R16 (RxBufAddr) % RX_BUF_LEN;
NETDRV_W16_F (RxBufPtr, tp->cur_rx - 16);
}
@@ -1739,7 +1736,7 @@
NETDRV_W16 (IntrMask, 0x0000);
/* Update the error counts. */
- tp->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
+ dev->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
NETDRV_W32 (RxMissed, 0);
spin_unlock_irqrestore (&tp->lock, flags);
@@ -1806,31 +1803,6 @@
return rc;
}
-
-static struct net_device_stats *netdrv_get_stats (struct net_device *dev)
-{
- struct netdrv_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
-
- DPRINTK ("ENTER\n");
-
- assert (tp != NULL);
-
- if (netif_running(dev)) {
- unsigned long flags;
-
- spin_lock_irqsave (&tp->lock, flags);
-
- tp->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
- NETDRV_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
- }
-
- DPRINTK ("EXIT\n");
- return &tp->stats;
-}
-
/* Set or clear the multicast filter for this adaptor.
This routine is not state sensitive and need not be SMP locked. */
@@ -1908,7 +1880,7 @@
NETDRV_W8 (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear));
/* Update the error counts. */
- tp->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
+ dev->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
NETDRV_W32 (RxMissed, 0);
spin_unlock_irqrestore (&tp->lock, flags);