From 09f75cd7bf13720738e6a196cc0107ce9a5bd5a0 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Wed, 3 Oct 2007 17:41:50 -0700 Subject: [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 Signed-off-by: David S. Miller --- drivers/net/smc91x.c | 69 ++++++++++++++++++---------------------------------- 1 file changed, 24 insertions(+), 45 deletions(-) (limited to 'drivers/net/smc91x.c') diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index c5837ab5c96..fe28d277f21 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -183,13 +183,6 @@ struct smc_local { struct sk_buff *pending_tx_skb; struct tasklet_struct tx_task; - /* - * these are things that the kernel wants me to keep, so users - * can find out semi-useless statistics of how well the card is - * performing - */ - struct net_device_stats stats; - /* version/revision of the SMC91x chip */ int version; @@ -332,8 +325,8 @@ static void smc_reset(struct net_device *dev) /* free any pending tx skb */ if (pending_skb) { dev_kfree_skb(pending_skb); - lp->stats.tx_errors++; - lp->stats.tx_aborted_errors++; + dev->stats.tx_errors++; + dev->stats.tx_aborted_errors++; } /* @@ -512,13 +505,13 @@ static inline void smc_rcv(struct net_device *dev) } SMC_WAIT_MMU_BUSY(); SMC_SET_MMU_CMD(MC_RELEASE); - lp->stats.rx_errors++; + dev->stats.rx_errors++; if (status & RS_ALGNERR) - lp->stats.rx_frame_errors++; + dev->stats.rx_frame_errors++; if (status & (RS_TOOSHORT | RS_TOOLONG)) - lp->stats.rx_length_errors++; + dev->stats.rx_length_errors++; if (status & RS_BADCRC) - lp->stats.rx_crc_errors++; + dev->stats.rx_crc_errors++; } else { struct sk_buff *skb; unsigned char *data; @@ -526,7 +519,7 @@ static inline void smc_rcv(struct net_device *dev) /* set multicast stats */ if (status & RS_MULTICAST) - lp->stats.multicast++; + dev->stats.multicast++; /* * Actual payload is packet_len - 6 (or 5 if odd byte). @@ -542,7 +535,7 @@ static inline void smc_rcv(struct net_device *dev) dev->name); SMC_WAIT_MMU_BUSY(); SMC_SET_MMU_CMD(MC_RELEASE); - lp->stats.rx_dropped++; + dev->stats.rx_dropped++; return; } @@ -570,8 +563,8 @@ static inline void smc_rcv(struct net_device *dev) dev->last_rx = jiffies; skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); - lp->stats.rx_packets++; - lp->stats.rx_bytes += data_len; + dev->stats.rx_packets++; + dev->stats.rx_bytes += data_len; } } @@ -644,8 +637,8 @@ static void smc_hardware_send_pkt(unsigned long data) packet_no = SMC_GET_AR(); if (unlikely(packet_no & AR_FAILED)) { printk("%s: Memory allocation failed.\n", dev->name); - lp->stats.tx_errors++; - lp->stats.tx_fifo_errors++; + dev->stats.tx_errors++; + dev->stats.tx_fifo_errors++; smc_special_unlock(&lp->lock); goto done; } @@ -688,8 +681,8 @@ static void smc_hardware_send_pkt(unsigned long data) smc_special_unlock(&lp->lock); dev->trans_start = jiffies; - lp->stats.tx_packets++; - lp->stats.tx_bytes += len; + dev->stats.tx_packets++; + dev->stats.tx_bytes += len; SMC_ENABLE_INT(IM_TX_INT | IM_TX_EMPTY_INT); @@ -729,8 +722,8 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) numPages = ((skb->len & ~1) + (6 - 1)) >> 8; if (unlikely(numPages > 7)) { printk("%s: Far too big packet error.\n", dev->name); - lp->stats.tx_errors++; - lp->stats.tx_dropped++; + dev->stats.tx_errors++; + dev->stats.tx_dropped++; dev_kfree_skb(skb); return 0; } @@ -803,17 +796,17 @@ static void smc_tx(struct net_device *dev) dev->name, tx_status, packet_no); if (!(tx_status & ES_TX_SUC)) - lp->stats.tx_errors++; + dev->stats.tx_errors++; if (tx_status & ES_LOSTCARR) - lp->stats.tx_carrier_errors++; + dev->stats.tx_carrier_errors++; if (tx_status & (ES_LATCOL | ES_16COL)) { PRINTK("%s: %s occurred on last xmit\n", dev->name, (tx_status & ES_LATCOL) ? "late collision" : "too many collisions"); - lp->stats.tx_window_errors++; - if (!(lp->stats.tx_window_errors & 63) && net_ratelimit()) { + dev->stats.tx_window_errors++; + if (!(dev->stats.tx_window_errors & 63) && net_ratelimit()) { printk(KERN_INFO "%s: unexpectedly large number of " "bad collisions. Please check duplex " "setting.\n", dev->name); @@ -1347,19 +1340,19 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id) SMC_SELECT_BANK(2); /* single collisions */ - lp->stats.collisions += card_stats & 0xF; + dev->stats.collisions += card_stats & 0xF; card_stats >>= 4; /* multiple collisions */ - lp->stats.collisions += card_stats & 0xF; + dev->stats.collisions += card_stats & 0xF; } else if (status & IM_RX_OVRN_INT) { DBG(1, "%s: RX overrun (EPH_ST 0x%04x)\n", dev->name, ({ int eph_st; SMC_SELECT_BANK(0); eph_st = SMC_GET_EPH_STATUS(); SMC_SELECT_BANK(2); eph_st; }) ); SMC_ACK_INT(IM_RX_OVRN_INT); - lp->stats.rx_errors++; - lp->stats.rx_fifo_errors++; + dev->stats.rx_errors++; + dev->stats.rx_fifo_errors++; } else if (status & IM_EPH_INT) { smc_eph_interrupt(dev); } else if (status & IM_MDINT) { @@ -1627,19 +1620,6 @@ static int smc_close(struct net_device *dev) return 0; } -/* - * Get the current statistics. - * This may be called with the card open or closed. - */ -static struct net_device_stats *smc_query_statistics(struct net_device *dev) -{ - struct smc_local *lp = netdev_priv(dev); - - DBG(2, "%s: %s\n", dev->name, __FUNCTION__); - - return &lp->stats; -} - /* * Ethtool support */ @@ -1965,7 +1945,6 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr) dev->hard_start_xmit = smc_hard_start_xmit; dev->tx_timeout = smc_timeout; dev->watchdog_timeo = msecs_to_jiffies(watchdog); - dev->get_stats = smc_query_statistics; dev->set_multicast_list = smc_set_multicast_list; dev->ethtool_ops = &smc_ethtool_ops; #ifdef CONFIG_NET_POLL_CONTROLLER -- cgit v1.2.3