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Commit 8148ff45 authored by Jeff Garzik's avatar Jeff Garzik
Browse files

[netdrvr] forcedeth: remove in-driver copy of net_device_stats 



A copy of struct net_device_stats now lives in struct net_device,
making in-driver copies a waste of memory.

Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 3f88ce49

drivers/net/forcedeth.c

+36 −36
Original line number Diff line number Diff line
@@ -128,7 +128,7 @@ 
#else

#define DRIVERNAPI

#endif

#define FORCEDETH_VERSION		"0.60"

#define FORCEDETH_VERSION		"0.61"

#define DRV_NAME			"forcedeth"



#include <linux/module.h>
@@ -752,7 +752,6 @@ struct fe_priv { 


	/* General data:

	 * Locking: spin_lock(&np->lock); */

	struct net_device_stats stats;

	struct nv_ethtool_stats estats;

	int in_shutdown;

	u32 linkspeed;
@@ -1505,15 +1504,16 @@ static struct net_device_stats *nv_get_stats(struct net_device *dev) 
		nv_get_hw_stats(dev);



		/* copy to net_device stats */

		np->stats.tx_bytes = np->estats.tx_bytes;

		np->stats.tx_fifo_errors = np->estats.tx_fifo_errors;

		np->stats.tx_carrier_errors = np->estats.tx_carrier_errors;

		np->stats.rx_crc_errors = np->estats.rx_crc_errors;

		np->stats.rx_over_errors = np->estats.rx_over_errors;

		np->stats.rx_errors = np->estats.rx_errors_total;

		np->stats.tx_errors = np->estats.tx_errors_total;

		dev->stats.tx_bytes = np->estats.tx_bytes;

		dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors;

		dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors;

		dev->stats.rx_crc_errors = np->estats.rx_crc_errors;

		dev->stats.rx_over_errors = np->estats.rx_over_errors;

		dev->stats.rx_errors = np->estats.rx_errors_total;

		dev->stats.tx_errors = np->estats.tx_errors_total;

	}

	return &np->stats;



	return &dev->stats;

}



/*
@@ -1733,7 +1733,7 @@ static void nv_drain_tx(struct net_device *dev) 
			np->tx_ring.ex[i].buflow = 0;

		}

		if (nv_release_txskb(dev, &np->tx_skb[i]))

			np->stats.tx_dropped++;

			dev->stats.tx_dropped++;

	}

}
@@ -2049,13 +2049,13 @@ static void nv_tx_done(struct net_device *dev) 
			if (flags & NV_TX_LASTPACKET) {

				if (flags & NV_TX_ERROR) {

					if (flags & NV_TX_UNDERFLOW)

						np->stats.tx_fifo_errors++;

						dev->stats.tx_fifo_errors++;

					if (flags & NV_TX_CARRIERLOST)

						np->stats.tx_carrier_errors++;

					np->stats.tx_errors++;

						dev->stats.tx_carrier_errors++;

					dev->stats.tx_errors++;

				} else {

					np->stats.tx_packets++;

					np->stats.tx_bytes += np->get_tx_ctx->skb->len;

					dev->stats.tx_packets++;

					dev->stats.tx_bytes += np->get_tx_ctx->skb->len;

				}

				dev_kfree_skb_any(np->get_tx_ctx->skb);

				np->get_tx_ctx->skb = NULL;
@@ -2064,13 +2064,13 @@ static void nv_tx_done(struct net_device *dev) 
			if (flags & NV_TX2_LASTPACKET) {

				if (flags & NV_TX2_ERROR) {

					if (flags & NV_TX2_UNDERFLOW)

						np->stats.tx_fifo_errors++;

						dev->stats.tx_fifo_errors++;

					if (flags & NV_TX2_CARRIERLOST)

						np->stats.tx_carrier_errors++;

					np->stats.tx_errors++;

						dev->stats.tx_carrier_errors++;

					dev->stats.tx_errors++;

				} else {

					np->stats.tx_packets++;

					np->stats.tx_bytes += np->get_tx_ctx->skb->len;

					dev->stats.tx_packets++;

					dev->stats.tx_bytes += np->get_tx_ctx->skb->len;

				}

				dev_kfree_skb_any(np->get_tx_ctx->skb);

				np->get_tx_ctx->skb = NULL;
@@ -2107,7 +2107,7 @@ static void nv_tx_done_optimized(struct net_device *dev, int limit) 


		if (flags & NV_TX2_LASTPACKET) {

			if (!(flags & NV_TX2_ERROR))

				np->stats.tx_packets++;

				dev->stats.tx_packets++;

			dev_kfree_skb_any(np->get_tx_ctx->skb);

			np->get_tx_ctx->skb = NULL;

		}
@@ -2308,7 +2308,7 @@ static int nv_rx_process(struct net_device *dev, int limit) 
					if (flags & NV_RX_ERROR4) {

						len = nv_getlen(dev, skb->data, len);

						if (len < 0) {

							np->stats.rx_errors++;

							dev->stats.rx_errors++;

							dev_kfree_skb(skb);

							goto next_pkt;

						}
@@ -2322,12 +2322,12 @@ static int nv_rx_process(struct net_device *dev, int limit) 
					/* the rest are hard errors */

					else {

						if (flags & NV_RX_MISSEDFRAME)

							np->stats.rx_missed_errors++;

							dev->stats.rx_missed_errors++;

						if (flags & NV_RX_CRCERR)

							np->stats.rx_crc_errors++;

							dev->stats.rx_crc_errors++;

						if (flags & NV_RX_OVERFLOW)

							np->stats.rx_over_errors++;

						np->stats.rx_errors++;

							dev->stats.rx_over_errors++;

						dev->stats.rx_errors++;

						dev_kfree_skb(skb);

						goto next_pkt;

					}
@@ -2343,7 +2343,7 @@ static int nv_rx_process(struct net_device *dev, int limit) 
					if (flags & NV_RX2_ERROR4) {

						len = nv_getlen(dev, skb->data, len);

						if (len < 0) {

							np->stats.rx_errors++;

							dev->stats.rx_errors++;

							dev_kfree_skb(skb);

							goto next_pkt;

						}
@@ -2357,10 +2357,10 @@ static int nv_rx_process(struct net_device *dev, int limit) 
					/* the rest are hard errors */

					else {

						if (flags & NV_RX2_CRCERR)

							np->stats.rx_crc_errors++;

							dev->stats.rx_crc_errors++;

						if (flags & NV_RX2_OVERFLOW)

							np->stats.rx_over_errors++;

						np->stats.rx_errors++;

							dev->stats.rx_over_errors++;

						dev->stats.rx_errors++;

						dev_kfree_skb(skb);

						goto next_pkt;

					}
@@ -2389,8 +2389,8 @@ static int nv_rx_process(struct net_device *dev, int limit) 
		netif_rx(skb);

#endif

		dev->last_rx = jiffies;

		np->stats.rx_packets++;

		np->stats.rx_bytes += len;

		dev->stats.rx_packets++;

		dev->stats.rx_bytes += len;

next_pkt:

		if (unlikely(np->get_rx.orig++ == np->last_rx.orig))

			np->get_rx.orig = np->first_rx.orig;
@@ -2507,8 +2507,8 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit) 
			}



			dev->last_rx = jiffies;

			np->stats.rx_packets++;

			np->stats.rx_bytes += len;

			dev->stats.rx_packets++;

			dev->stats.rx_bytes += len;

		} else {

			dev_kfree_skb(skb);

		}