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-rw-r--r--drivers/net/tulip/de4x5.c7
-rw-r--r--drivers/net/tulip/dmfe.c2
-rw-r--r--drivers/net/tulip/interrupt.c94
-rw-r--r--drivers/net/tulip/media.c8
-rw-r--r--drivers/net/tulip/tulip.h32
-rw-r--r--drivers/net/tulip/tulip_core.c45
-rw-r--r--drivers/net/tulip/uli526x.c2
-rw-r--r--drivers/net/tulip/winbond-840.c7
8 files changed, 133 insertions, 64 deletions
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index 6418f74415d7..f9491bd787d1 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -479,7 +479,8 @@
#include "de4x5.h"
-static char version[] __devinitdata = "de4x5.c:V0.546 2001/02/22 davies@maniac.ultranet.com\n";
+static const char version[] __devinitconst =
+ KERN_INFO "de4x5.c:V0.546 2001/02/22 davies@maniac.ultranet.com\n";
#define c_char const char
@@ -3941,8 +3942,8 @@ PCI_signature(char *name, struct de4x5_private *lp)
strcpy(name, "DE434/5");
return status;
} else { /* Search for a DEC name in the SROM */
- int i = *((char *)&lp->srom + 19) * 3;
- strncpy(name, (char *)&lp->srom + 26 + i, 8);
+ int tmp = *((char *)&lp->srom + 19) * 3;
+ strncpy(name, (char *)&lp->srom + 26 + tmp, 8);
}
name[8] = '\0';
for (i=0; i<siglen; i++) {
diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index 2e5c99941f35..e2c9d0f5a755 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -288,7 +288,7 @@ enum dmfe_CR6_bits {
/* Global variable declaration ----------------------------- */
static int __devinitdata printed_version;
-static char version[] __devinitdata =
+static const char version[] __devinitconst =
KERN_INFO DRV_NAME ": Davicom DM9xxx net driver, version "
DRV_VERSION " (" DRV_RELDATE ")\n";
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;
diff --git a/drivers/net/tulip/media.c b/drivers/net/tulip/media.c
index 91cf9c863910..daddfa51853e 100644
--- a/drivers/net/tulip/media.c
+++ b/drivers/net/tulip/media.c
@@ -69,11 +69,10 @@ int tulip_mdio_read(struct net_device *dev, int phy_id, int location)
spin_lock_irqsave(&tp->mii_lock, flags);
if (tp->chip_id == LC82C168) {
- int i = 1000;
iowrite32(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
ioread32(ioaddr + 0xA0);
ioread32(ioaddr + 0xA0);
- while (--i > 0) {
+ for (i = 1000; i >= 0; --i) {
barrier();
if ( ! ((retval = ioread32(ioaddr + 0xA0)) & 0x80000000))
break;
@@ -131,13 +130,12 @@ void tulip_mdio_write(struct net_device *dev, int phy_id, int location, int val)
spin_lock_irqsave(&tp->mii_lock, flags);
if (tp->chip_id == LC82C168) {
- int i = 1000;
iowrite32(cmd, ioaddr + 0xA0);
- do {
+ for (i = 1000; i >= 0; --i) {
barrier();
if ( ! (ioread32(ioaddr + 0xA0) & 0x80000000))
break;
- } while (--i > 0);
+ }
spin_unlock_irqrestore(&tp->mii_lock, flags);
return;
}
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h
index 19abbc36b60a..0afa2d4f9472 100644
--- a/drivers/net/tulip/tulip.h
+++ b/drivers/net/tulip/tulip.h
@@ -201,8 +201,38 @@ enum desc_status_bits {
DescStartPkt = 0x20000000,
DescEndRing = 0x02000000,
DescUseLink = 0x01000000,
- RxDescFatalErr = 0x008000,
+
+ /*
+ * Error summary flag is logical or of 'CRC Error', 'Collision Seen',
+ * 'Frame Too Long', 'Runt' and 'Descriptor Error' flags generated
+ * within tulip chip.
+ */
+ RxDescErrorSummary = 0x8000,
+ RxDescCRCError = 0x0002,
+ RxDescCollisionSeen = 0x0040,
+
+ /*
+ * 'Frame Too Long' flag is set if packet length including CRC exceeds
+ * 1518. However, a full sized VLAN tagged frame is 1522 bytes
+ * including CRC.
+ *
+ * The tulip chip does not block oversized frames, and if this flag is
+ * set on a receive descriptor it does not indicate the frame has been
+ * truncated. The receive descriptor also includes the actual length.
+ * Therefore we can safety ignore this flag and check the length
+ * ourselves.
+ */
+ RxDescFrameTooLong = 0x0080,
+ RxDescRunt = 0x0800,
+ RxDescDescErr = 0x4000,
RxWholePkt = 0x00000300,
+ /*
+ * Top three bits of 14 bit frame length (status bits 27-29) should
+ * never be set as that would make frame over 2047 bytes. The Receive
+ * Watchdog flag (bit 4) may indicate the length is over 2048 and the
+ * length field is invalid.
+ */
+ RxLengthOver2047 = 0x38000010
};
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index bee75fa87a9c..2abb5d3becc6 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -255,6 +255,7 @@ const char tulip_media_cap[32] =
static void tulip_tx_timeout(struct net_device *dev);
static void tulip_init_ring(struct net_device *dev);
+static void tulip_free_ring(struct net_device *dev);
static int tulip_start_xmit(struct sk_buff *skb, struct net_device *dev);
static int tulip_open(struct net_device *dev);
static int tulip_close(struct net_device *dev);
@@ -502,16 +503,21 @@ tulip_open(struct net_device *dev)
{
int retval;
- if ((retval = request_irq(dev->irq, &tulip_interrupt, IRQF_SHARED, dev->name, dev)))
- return retval;
-
tulip_init_ring (dev);
+ retval = request_irq(dev->irq, &tulip_interrupt, IRQF_SHARED, dev->name, dev);
+ if (retval)
+ goto free_ring;
+
tulip_up (dev);
netif_start_queue (dev);
return 0;
+
+free_ring:
+ tulip_free_ring (dev);
+ return retval;
}
@@ -768,23 +774,11 @@ static void tulip_down (struct net_device *dev)
tulip_set_power_state (tp, 0, 1);
}
-
-static int tulip_close (struct net_device *dev)
+static void tulip_free_ring (struct net_device *dev)
{
struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
int i;
- netif_stop_queue (dev);
-
- tulip_down (dev);
-
- if (tulip_debug > 1)
- printk (KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
- dev->name, ioread32 (ioaddr + CSR5));
-
- free_irq (dev->irq, dev);
-
/* Free all the skbuffs in the Rx queue. */
for (i = 0; i < RX_RING_SIZE; i++) {
struct sk_buff *skb = tp->rx_buffers[i].skb;
@@ -803,6 +797,7 @@ static int tulip_close (struct net_device *dev)
dev_kfree_skb (skb);
}
}
+
for (i = 0; i < TX_RING_SIZE; i++) {
struct sk_buff *skb = tp->tx_buffers[i].skb;
@@ -814,6 +809,24 @@ static int tulip_close (struct net_device *dev)
tp->tx_buffers[i].skb = NULL;
tp->tx_buffers[i].mapping = 0;
}
+}
+
+static int tulip_close (struct net_device *dev)
+{
+ struct tulip_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->base_addr;
+
+ netif_stop_queue (dev);
+
+ tulip_down (dev);
+
+ if (tulip_debug > 1)
+ printk (KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
+ dev->name, ioread32 (ioaddr + CSR5));
+
+ free_irq (dev->irq, dev);
+
+ tulip_free_ring (dev);
return 0;
}
diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c
index 030e02e63023..c227db079621 100644
--- a/drivers/net/tulip/uli526x.c
+++ b/drivers/net/tulip/uli526x.c
@@ -200,7 +200,7 @@ enum uli526x_CR6_bits {
/* Global variable declaration ----------------------------- */
static int __devinitdata printed_version;
-static char version[] __devinitdata =
+static const char version[] __devinitconst =
KERN_INFO DRV_NAME ": ULi M5261/M5263 net driver, version "
DRV_VERSION " (" DRV_RELDATE ")\n";
diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c
index f467bf87817d..c61a01b029af 100644
--- a/drivers/net/tulip/winbond-840.c
+++ b/drivers/net/tulip/winbond-840.c
@@ -139,9 +139,10 @@ static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
/* These identify the driver base version and may not be removed. */
-static char version[] =
-KERN_INFO DRV_NAME ".c:v" DRV_VERSION " (2.4 port) " DRV_RELDATE " Donald Becker <becker@scyld.com>\n"
-KERN_INFO " http://www.scyld.com/network/drivers.html\n";
+static const char version[] __initconst =
+ KERN_INFO DRV_NAME ".c:v" DRV_VERSION " (2.4 port) "
+ DRV_RELDATE " Donald Becker <becker@scyld.com>\n"
+ KERN_INFO " http://www.scyld.com/network/drivers.html\n";
MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
MODULE_DESCRIPTION("Winbond W89c840 Ethernet driver");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.