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authordavid decotigny <david.decotigny@google.com>2011-11-05 14:38:22 +0000
committerDavid S. Miller <davem@davemloft.net>2011-11-07 13:31:24 -0500
commit4687f3f364a1d5b2df815a8c58a763cab57724e8 (patch)
tree9083050ec1f348c3f210172e337fcafb3b736678 /drivers/net
parent2a4e7a085fb44369c450c92cf8bd53b91f874a57 (diff)
downloadlinux-linaro-stable-4687f3f364a1d5b2df815a8c58a763cab57724e8.tar.gz
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 <david.decotigny@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/nvidia/forcedeth.c35
1 files changed, 1 insertions, 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);
}