netdev - [PATCH net-next 2/4] enic: record all bad FCS errs as frame errors

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Message-ID: <20090210005717.24315.53750.stgit@palito_client100.nuovasystems.com>
Date:	Mon, 09 Feb 2009 16:57:17 -0800
From:	Scott Feldman <scofeldm@...co.com>
To:	netdev@...r.kernel.org
Subject: [PATCH net-next 2/4] enic: record all bad FCS errs as frame errors

enic: record all bad FCS errs as frame errors

Report all bad FCS errs as frames errs.  This includes frames with bad FCS on wire detected by MAC and frames which may be truncated due to ingress FIFO overruns.  No longer print a driver msg on bad FCS err.

Signed-off-by: Scott Feldman <scofeldm@...co.com>
---
 drivers/net/enic/enic.h      |    1 +
 drivers/net/enic/enic_main.c |   10 +++-------
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 86b8c15..c26cea0 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -97,6 +97,7 @@ struct enic {
 	____cacheline_aligned struct vnic_rq rq[1];
 	unsigned int rq_count;
 	int (*rq_alloc_buf)(struct vnic_rq *rq);
+	u64 rq_bad_fcs;
 	struct napi_struct napi;
 	struct net_lro_mgr lro_mgr;
 	struct net_lro_desc lro_desc[ENIC_LRO_MAX_DESC];
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 35fc9ea..3ba5f54 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -688,7 +688,7 @@ static struct net_device_stats *enic_get_stats(struct net_device *netdev)
 	net_stats->rx_bytes = stats->rx.rx_bytes_ok;
 	net_stats->rx_errors = stats->rx.rx_errors;
 	net_stats->multicast = stats->rx.rx_multicast_frames_ok;
-	net_stats->rx_crc_errors = stats->rx.rx_crc_errors;
+	net_stats->rx_crc_errors = enic->rq_bad_fcs;
 	net_stats->rx_dropped = stats->rx.rx_no_bufs;
 
 	return net_stats;
@@ -933,12 +933,8 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
 
 	if (packet_error) {
 
-		if (bytes_written > 0 && !fcs_ok) {
-			if (net_ratelimit())
-				printk(KERN_ERR PFX
-					"%s: packet error: bad FCS\n",
-					netdev->name);
-		}
+		if (bytes_written > 0 && !fcs_ok)
+			enic->rq_bad_fcs++;
 
 		dev_kfree_skb_any(skb);
 

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