From 4687f3f364a1d5b2df815a8c58a763cab57724e8 Mon Sep 17 00:00:00 2001 From: david decotigny Date: Sat, 5 Nov 2011 14:38:22 +0000 Subject: [PATCH] forcedeth: remove unneeded stats updates Function ndo_get_stats() updates most of the stats from hardware registers, making the manual updates un-needed. This change removes these manual updates. Main exception is rx_missed_errors which needs manual update. Another exception is rx_packets, still updated manually in this commit to make sure this patch doesn't change behavior of driver. This will be addressed by a future patch. Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- drivers/net/ethernet/nvidia/forcedeth.c | 35 +------------------------ 1 file changed, 1 insertion(+), 34 deletions(-) diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index b7cf4b6e15ec..2f1eaee5cf00 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -2374,16 +2374,8 @@ static int nv_tx_done(struct net_device *dev, int limit) if (np->desc_ver == DESC_VER_1) { if (flags & NV_TX_LASTPACKET) { if (flags & NV_TX_ERROR) { - if (flags & NV_TX_UNDERFLOW) - dev->stats.tx_fifo_errors++; - if (flags & NV_TX_CARRIERLOST) - dev->stats.tx_carrier_errors++; if ((flags & NV_TX_RETRYERROR) && !(flags & NV_TX_RETRYCOUNT_MASK)) nv_legacybackoff_reseed(dev); - dev->stats.tx_errors++; - } else { - 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; @@ -2392,16 +2384,8 @@ static int nv_tx_done(struct net_device *dev, int limit) } else { if (flags & NV_TX2_LASTPACKET) { if (flags & NV_TX2_ERROR) { - if (flags & NV_TX2_UNDERFLOW) - dev->stats.tx_fifo_errors++; - if (flags & NV_TX2_CARRIERLOST) - dev->stats.tx_carrier_errors++; if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) nv_legacybackoff_reseed(dev); - dev->stats.tx_errors++; - } else { - 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; @@ -2434,9 +2418,7 @@ static int nv_tx_done_optimized(struct net_device *dev, int limit) nv_unmap_txskb(np, np->get_tx_ctx); if (flags & NV_TX2_LASTPACKET) { - if (!(flags & NV_TX2_ERROR)) - dev->stats.tx_packets++; - else { + if (flags & NV_TX2_ERROR) { if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) { if (np->driver_data & DEV_HAS_GEAR_MODE) nv_gear_backoff_reseed(dev); @@ -2636,7 +2618,6 @@ static int nv_rx_process(struct net_device *dev, int limit) if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) { len = nv_getlen(dev, skb->data, len); if (len < 0) { - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2650,11 +2631,6 @@ static int nv_rx_process(struct net_device *dev, int limit) else { if (flags & NV_RX_MISSEDFRAME) dev->stats.rx_missed_errors++; - if (flags & NV_RX_CRCERR) - dev->stats.rx_crc_errors++; - if (flags & NV_RX_OVERFLOW) - dev->stats.rx_over_errors++; - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2670,7 +2646,6 @@ static int nv_rx_process(struct net_device *dev, int limit) if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) { len = nv_getlen(dev, skb->data, len); if (len < 0) { - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2682,11 +2657,6 @@ static int nv_rx_process(struct net_device *dev, int limit) } /* the rest are hard errors */ else { - if (flags & NV_RX2_CRCERR) - dev->stats.rx_crc_errors++; - if (flags & NV_RX2_OVERFLOW) - dev->stats.rx_over_errors++; - dev->stats.rx_errors++; dev_kfree_skb(skb); goto next_pkt; } @@ -2704,7 +2674,6 @@ static int nv_rx_process(struct net_device *dev, int limit) skb->protocol = eth_type_trans(skb, dev); napi_gro_receive(&np->napi, skb); 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; @@ -2787,9 +2756,7 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit) __vlan_hwaccel_put_tag(skb, vid); } napi_gro_receive(&np->napi, skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += len; } else { dev_kfree_skb(skb); }