* cause DMA to kfree'd memory.
* 0.31: 14 Nov 2004: ethtool support for getting/setting link
* capabilities.
+ * 0.32: 16 Apr 2005: RX_ERROR4 handling added.
+ * 0.33: 16 May 2005: Support for MCP51 added.
+ * 0.34: 18 Jun 2005: Add DEV_NEED_LINKTIMER to all nForce nics.
+ * 0.35: 26 Jun 2005: Support for MCP55 added.
*
* Known bugs:
* We suspect that on some hardware no TX done interrupts are generated.
* DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
* superfluous timer interrupts from the nic.
*/
-#define FORCEDETH_VERSION "0.31"
+#define FORCEDETH_VERSION "0.35"
#define DRV_NAME "forcedeth"
#include <linux/module.h>
#include <linux/mii.h>
#include <linux/random.h>
#include <linux/init.h>
+#include <linux/if_vlan.h>
#include <asm/irq.h>
#include <asm/io.h>
spin_unlock_irq(&np->lock);
}
+/*
+ * Called when the nic notices a mismatch between the actual data len on the
+ * wire and the len indicated in the 802 header
+ */
+static int nv_getlen(struct net_device *dev, void *packet, int datalen)
+{
+ int hdrlen; /* length of the 802 header */
+ int protolen; /* length as stored in the proto field */
+
+ /* 1) calculate len according to header */
+ if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
+ protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto );
+ hdrlen = VLAN_HLEN;
+ } else {
+ protolen = ntohs( ((struct ethhdr *)packet)->h_proto);
+ hdrlen = ETH_HLEN;
+ }
+ dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n",
+ dev->name, datalen, protolen, hdrlen);
+ if (protolen > ETH_DATA_LEN)
+ return datalen; /* Value in proto field not a len, no checks possible */
+
+ protolen += hdrlen;
+ /* consistency checks: */
+ if (datalen > ETH_ZLEN) {
+ if (datalen >= protolen) {
+ /* more data on wire than in 802 header, trim of
+ * additional data.
+ */
+ dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
+ dev->name, protolen);
+ return protolen;
+ } else {
+ /* less data on wire than mentioned in header.
+ * Discard the packet.
+ */
+ dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n",
+ dev->name);
+ return -1;
+ }
+ } else {
+ /* short packet. Accept only if 802 values are also short */
+ if (protolen > ETH_ZLEN) {
+ dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n",
+ dev->name);
+ return -1;
+ }
+ dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
+ dev->name, datalen);
+ return datalen;
+ }
+}
+
static void nv_rx_process(struct net_device *dev)
{
struct fe_priv *np = get_nvpriv(dev);
np->stats.rx_errors++;
goto next_pkt;
}
- if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4)) {
+ if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3)) {
np->stats.rx_errors++;
goto next_pkt;
}
np->stats.rx_errors++;
goto next_pkt;
}
- if (Flags & NV_RX_ERROR) {
- /* framing errors are soft errors, the rest is fatal. */
- if (Flags & NV_RX_FRAMINGERR) {
- if (Flags & NV_RX_SUBSTRACT1) {
- len--;
- }
- } else {
+ if (Flags & NV_RX_ERROR4) {
+ len = nv_getlen(dev, np->rx_skbuff[i]->data, len);
+ if (len < 0) {
np->stats.rx_errors++;
goto next_pkt;
}
}
+ /* framing errors are soft errors. */
+ if (Flags & NV_RX_FRAMINGERR) {
+ if (Flags & NV_RX_SUBSTRACT1) {
+ len--;
+ }
+ }
} else {
if (!(Flags & NV_RX2_DESCRIPTORVALID))
goto next_pkt;
- if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4)) {
+ if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3)) {
np->stats.rx_errors++;
goto next_pkt;
}
np->stats.rx_errors++;
goto next_pkt;
}
- if (Flags & NV_RX2_ERROR) {
- /* framing errors are soft errors, the rest is fatal. */
- if (Flags & NV_RX2_FRAMINGERR) {
- if (Flags & NV_RX2_SUBSTRACT1) {
- len--;
- }
- } else {
+ if (Flags & NV_RX2_ERROR4) {
+ len = nv_getlen(dev, np->rx_skbuff[i]->data, len);
+ if (len < 0) {
np->stats.rx_errors++;
goto next_pkt;
}
}
+ /* framing errors are soft errors */
+ if (Flags & NV_RX2_FRAMINGERR) {
+ if (Flags & NV_RX2_SUBSTRACT1) {
+ len--;
+ }
+ }
Flags &= NV_RX2_CHECKSUMMASK;
if (Flags == NV_RX2_CHECKSUMOK1 ||
Flags == NV_RX2_CHECKSUMOK2 ||
/* handle different descriptor versions */
if (pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_1 ||
pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_2 ||
- pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_3)
+ pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_3 ||
+ pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 ||
+ pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_13)
np->desc_ver = DESC_VER_1;
else
np->desc_ver = DESC_VER_2;
.device = PCI_DEVICE_ID_NVIDIA_NVENET_4,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* nForce3 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_5,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* nForce3 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_6,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* nForce3 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_7,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* CK804 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_8,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* CK804 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_9,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* MCP04 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_10,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{ /* MCP04 Ethernet Controller */
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_NVENET_11,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
- .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+ },
+ { /* MCP51 Ethernet Controller */
+ .vendor = PCI_VENDOR_ID_NVIDIA,
+ .device = PCI_DEVICE_ID_NVIDIA_NVENET_12,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+ },
+ { /* MCP51 Ethernet Controller */
+ .vendor = PCI_VENDOR_ID_NVIDIA,
+ .device = PCI_DEVICE_ID_NVIDIA_NVENET_13,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+ },
+ { /* MCP55 Ethernet Controller */
+ .vendor = PCI_VENDOR_ID_NVIDIA,
+ .device = PCI_DEVICE_ID_NVIDIA_NVENET_14,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+ },
+ { /* MCP55 Ethernet Controller */
+ .vendor = PCI_VENDOR_ID_NVIDIA,
+ .device = PCI_DEVICE_ID_NVIDIA_NVENET_15,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
},
{0,},
};
projects / linux-2.6 / blobdiff