aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAyaz Abdulla <aabdulla@nvidia.com>2008-08-06 12:11:03 -0400
committerJeff Garzik <jgarzik@redhat.com>2008-08-07 02:10:59 -0400
commit1ef6841b4c4d9cc26e53271016c1d432ea65ed24 (patch)
tree6b1b016f9632ecb621d2cc3605a95d3a00a2f187
parent8bad4afe1257585967a1b38cd3f21324b260812b (diff)
forcedeth: fix rx error policy
This patch enforces a stricter policy on rx errors. The driver needs to verify whether there are multiple rx errors versus a single error. Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/net/forcedeth.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 01b38b092c7..a39ed1365d6 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -402,6 +402,7 @@ union ring_type {
#define NV_RX_FRAMINGERR (1<<29)
#define NV_RX_ERROR (1<<30)
#define NV_RX_AVAIL (1<<31)
+#define NV_RX_ERROR_MASK (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4|NV_RX_CRCERR|NV_RX_OVERFLOW|NV_RX_FRAMINGERR)
#define NV_RX2_CHECKSUMMASK (0x1C000000)
#define NV_RX2_CHECKSUM_IP (0x10000000)
@@ -419,6 +420,7 @@ union ring_type {
/* error and avail are the same for both */
#define NV_RX2_ERROR (1<<30)
#define NV_RX2_AVAIL (1<<31)
+#define NV_RX2_ERROR_MASK (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4|NV_RX2_CRCERR|NV_RX2_OVERFLOW|NV_RX2_FRAMINGERR)
#define NV_RX3_VLAN_TAG_PRESENT (1<<16)
#define NV_RX3_VLAN_TAG_MASK (0x0000FFFF)
@@ -2632,7 +2634,7 @@ static int nv_rx_process(struct net_device *dev, int limit)
if (likely(flags & NV_RX_DESCRIPTORVALID)) {
len = flags & LEN_MASK_V1;
if (unlikely(flags & NV_RX_ERROR)) {
- if (flags & NV_RX_ERROR4) {
+ if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) {
len = nv_getlen(dev, skb->data, len);
if (len < 0) {
dev->stats.rx_errors++;
@@ -2641,7 +2643,7 @@ static int nv_rx_process(struct net_device *dev, int limit)
}
}
/* framing errors are soft errors */
- else if (flags & NV_RX_FRAMINGERR) {
+ else if ((flags & NV_RX_ERROR_MASK) == NV_RX_FRAMINGERR) {
if (flags & NV_RX_SUBSTRACT1) {
len--;
}
@@ -2667,7 +2669,7 @@ static int nv_rx_process(struct net_device *dev, int limit)
if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
len = flags & LEN_MASK_V2;
if (unlikely(flags & NV_RX2_ERROR)) {
- if (flags & NV_RX2_ERROR4) {
+ if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
len = nv_getlen(dev, skb->data, len);
if (len < 0) {
dev->stats.rx_errors++;
@@ -2676,7 +2678,7 @@ static int nv_rx_process(struct net_device *dev, int limit)
}
}
/* framing errors are soft errors */
- else if (flags & NV_RX2_FRAMINGERR) {
+ else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
if (flags & NV_RX2_SUBSTRACT1) {
len--;
}
@@ -2766,7 +2768,7 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
len = flags & LEN_MASK_V2;
if (unlikely(flags & NV_RX2_ERROR)) {
- if (flags & NV_RX2_ERROR4) {
+ if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
len = nv_getlen(dev, skb->data, len);
if (len < 0) {
dev_kfree_skb(skb);
@@ -2774,7 +2776,7 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
}
}
/* framing errors are soft errors */
- else if (flags & NV_RX2_FRAMINGERR) {
+ else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
if (flags & NV_RX2_SUBSTRACT1) {
len--;
}