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path: root/drivers/net/tulip/interrupt.c
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Diffstat (limited to 'drivers/net/tulip/interrupt.c')
-rw-r--r--drivers/net/tulip/interrupt.c94
1 files changed, 60 insertions, 34 deletions
diff --git a/drivers/net/tulip/interrupt.c b/drivers/net/tulip/interrupt.c
index 6c3428a37c0b..c8d220cf2cce 100644
--- a/drivers/net/tulip/interrupt.c
+++ b/drivers/net/tulip/interrupt.c
@@ -103,7 +103,7 @@ void oom_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
struct tulip_private *tp = netdev_priv(dev);
- netif_rx_schedule(&tp->napi);
+ napi_schedule(&tp->napi);
}
int tulip_poll(struct napi_struct *napi, int budget)
@@ -140,6 +140,7 @@ int tulip_poll(struct napi_struct *napi, int budget)
/* If we own the next entry, it is a new packet. Send it up. */
while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
s32 status = le32_to_cpu(tp->rx_ring[entry].status);
+ short pkt_len;
if (tp->dirty_rx + RX_RING_SIZE == tp->cur_rx)
break;
@@ -151,8 +152,28 @@ int tulip_poll(struct napi_struct *napi, int budget)
if (++work_done >= budget)
goto not_done;
- if ((status & 0x38008300) != 0x0300) {
- if ((status & 0x38000300) != 0x0300) {
+ /*
+ * Omit the four octet CRC from the length.
+ * (May not be considered valid until we have
+ * checked status for RxLengthOver2047 bits)
+ */
+ pkt_len = ((status >> 16) & 0x7ff) - 4;
+
+ /*
+ * Maximum pkt_len is 1518 (1514 + vlan header)
+ * Anything higher than this is always invalid
+ * regardless of RxLengthOver2047 bits
+ */
+
+ if ((status & (RxLengthOver2047 |
+ RxDescCRCError |
+ RxDescCollisionSeen |
+ RxDescRunt |
+ RxDescDescErr |
+ RxWholePkt)) != RxWholePkt
+ || pkt_len > 1518) {
+ if ((status & (RxLengthOver2047 |
+ RxWholePkt)) != RxWholePkt) {
/* Ingore earlier buffers. */
if ((status & 0xffff) != 0x7fff) {
if (tulip_debug > 1)
@@ -161,30 +182,23 @@ int tulip_poll(struct napi_struct *napi, int budget)
dev->name, status);
tp->stats.rx_length_errors++;
}
- } else if (status & RxDescFatalErr) {
+ } else {
/* There was a fatal error. */
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
dev->name, status);
tp->stats.rx_errors++; /* end of a packet.*/
- if (status & 0x0890) tp->stats.rx_length_errors++;
+ if (pkt_len > 1518 ||
+ (status & RxDescRunt))
+ tp->stats.rx_length_errors++;
+
if (status & 0x0004) tp->stats.rx_frame_errors++;
if (status & 0x0002) tp->stats.rx_crc_errors++;
if (status & 0x0001) tp->stats.rx_fifo_errors++;
}
} else {
- /* Omit the four octet CRC from the length. */
- short pkt_len = ((status >> 16) & 0x7ff) - 4;
struct sk_buff *skb;
-#ifndef final_version
- if (pkt_len > 1518) {
- printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
- dev->name, pkt_len, pkt_len);
- pkt_len = 1518;
- tp->stats.rx_length_errors++;
- }
-#endif
/* Check if the packet is long enough to accept without copying
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
@@ -300,7 +314,7 @@ int tulip_poll(struct napi_struct *napi, int budget)
/* Remove us from polling list and enable RX intr. */
- netif_rx_complete(napi);
+ napi_complete(napi);
iowrite32(tulip_tbl[tp->chip_id].valid_intrs, tp->base_addr+CSR7);
/* The last op happens after poll completion. Which means the following:
@@ -333,10 +347,10 @@ int tulip_poll(struct napi_struct *napi, int budget)
/* Think: timer_pending() was an explicit signature of bug.
* Timer can be pending now but fired and completed
- * before we did netif_rx_complete(). See? We would lose it. */
+ * before we did napi_complete(). See? We would lose it. */
/* remove ourselves from the polling list */
- netif_rx_complete(napi);
+ napi_complete(napi);
return work_done;
}
@@ -356,14 +370,35 @@ static int tulip_rx(struct net_device *dev)
/* If we own the next entry, it is a new packet. Send it up. */
while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
s32 status = le32_to_cpu(tp->rx_ring[entry].status);
+ short pkt_len;
if (tulip_debug > 5)
printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %8.8x.\n",
dev->name, entry, status);
if (--rx_work_limit < 0)
break;
- if ((status & 0x38008300) != 0x0300) {
- if ((status & 0x38000300) != 0x0300) {
+
+ /*
+ Omit the four octet CRC from the length.
+ (May not be considered valid until we have
+ checked status for RxLengthOver2047 bits)
+ */
+ pkt_len = ((status >> 16) & 0x7ff) - 4;
+ /*
+ Maximum pkt_len is 1518 (1514 + vlan header)
+ Anything higher than this is always invalid
+ regardless of RxLengthOver2047 bits
+ */
+
+ if ((status & (RxLengthOver2047 |
+ RxDescCRCError |
+ RxDescCollisionSeen |
+ RxDescRunt |
+ RxDescDescErr |
+ RxWholePkt)) != RxWholePkt
+ || pkt_len > 1518) {
+ if ((status & (RxLengthOver2047 |
+ RxWholePkt)) != RxWholePkt) {
/* Ingore earlier buffers. */
if ((status & 0xffff) != 0x7fff) {
if (tulip_debug > 1)
@@ -372,31 +407,22 @@ static int tulip_rx(struct net_device *dev)
dev->name, status);
tp->stats.rx_length_errors++;
}
- } else if (status & RxDescFatalErr) {
+ } else {
/* There was a fatal error. */
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
dev->name, status);
tp->stats.rx_errors++; /* end of a packet.*/
- if (status & 0x0890) tp->stats.rx_length_errors++;
+ if (pkt_len > 1518 ||
+ (status & RxDescRunt))
+ tp->stats.rx_length_errors++;
if (status & 0x0004) tp->stats.rx_frame_errors++;
if (status & 0x0002) tp->stats.rx_crc_errors++;
if (status & 0x0001) tp->stats.rx_fifo_errors++;
}
} else {
- /* Omit the four octet CRC from the length. */
- short pkt_len = ((status >> 16) & 0x7ff) - 4;
struct sk_buff *skb;
-#ifndef final_version
- if (pkt_len > 1518) {
- printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
- dev->name, pkt_len, pkt_len);
- pkt_len = 1518;
- tp->stats.rx_length_errors++;
- }
-#endif
-
/* Check if the packet is long enough to accept without copying
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
@@ -519,7 +545,7 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance)
rxd++;
/* Mask RX intrs and add the device to poll list. */
iowrite32(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ioaddr + CSR7);
- netif_rx_schedule(&tp->napi);
+ napi_schedule(&tp->napi);
if (!(csr5&~(AbnormalIntr|NormalIntr|RxPollInt|TPLnkPass)))
break;
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