/*------------------------------------------------------------------------
* ethInterrupt - decode and handle interrupt from an Ethernet device
*------------------------------------------------------------------------
*/
interrupt ethInterrupt(void)
{
struct ether *ethptr; /* ptr to control block */
struct ag71xx *nicptr; /* ptr to device CSRs */
uint32 status;
uint32 mask;
/* Initialize structure pointers */
ethptr = ðertab[0]; /* default physical Ethernet */
if (!ethptr) {
return;
}
nicptr = ethptr->csr;
if (!nicptr) {
return;
}
/* Obtain status bits from device */
mask = nicptr->interruptMask;
status = nicptr->interruptStatus & mask;
/* Record status in ether struct */
ethptr->interruptStatus = status;
if (status == 0) {
return;
}
sched_cntl(DEFER_START);
if (status & IRQ_TX_PKTSENT) { /* handle transmitter interrupt */
ethptr->txirq++;
txPackets(ethptr, nicptr);
}
if (status & IRQ_RX_PKTRECV) { /* handle receiver interrupt */
ethptr->rxirq++;
rxPackets(ethptr, nicptr);
}
/* Handle errors (transmit or receive overflow) */
if (status & IRQ_RX_OVERFLOW) {
/* Clear interrupt and restart processing */
nicptr->rxStatus = RX_STAT_OVERFLOW;
nicptr->rxControl = RX_CTRL_RXE;
ethptr->errors++;
}
if ((status & IRQ_TX_UNDERFLOW) ||
(status & IRQ_TX_BUSERR) || (status & IRQ_RX_BUSERR)) {
panic("Catastrophic Ethernet error");
}
sched_cntl(DEFER_STOP);
return;
}
static int readNetworkStatsDetail(JNIEnv* env, jclass clazz, jobject stats,
jstring path, jint limitUid) {
ScopedUtfChars path8(env, path);
if (path8.c_str() == NULL) {
return -1;
}
FILE *fp = fopen(path8.c_str(), "r");
if (fp == NULL) {
return -1;
}
Vector<stats_line> lines;
int lastIdx = 1;
char buffer[384];
while (fgets(buffer, sizeof(buffer), fp) != NULL) {
stats_line s;
int64_t rawTag;
if (sscanf(buffer, "%d %31s 0x%llx %u %u %llu %llu %llu %llu", &s.idx,
s.iface, &rawTag, &s.uid, &s.set, &s.rxBytes, &s.rxPackets,
&s.txBytes, &s.txPackets) == 9) {
if (s.idx != lastIdx + 1) {
ALOGE("inconsistent idx=%d after lastIdx=%d", s.idx, lastIdx);
return -1;
}
lastIdx = s.idx;
s.tag = rawTag >> 32;
lines.push_back(s);
}
}
if (fclose(fp) != 0) {
return -1;
}
int size = lines.size();
ScopedLocalRef<jobjectArray> iface(env, env->NewObjectArray(size, gStringClass, NULL));
if (iface.get() == NULL) return -1;
ScopedIntArrayRW uid(env, env->NewIntArray(size));
if (uid.get() == NULL) return -1;
ScopedIntArrayRW set(env, env->NewIntArray(size));
if (set.get() == NULL) return -1;
ScopedIntArrayRW tag(env, env->NewIntArray(size));
if (tag.get() == NULL) return -1;
ScopedLongArrayRW rxBytes(env, env->NewLongArray(size));
if (rxBytes.get() == NULL) return -1;
ScopedLongArrayRW rxPackets(env, env->NewLongArray(size));
if (rxPackets.get() == NULL) return -1;
ScopedLongArrayRW txBytes(env, env->NewLongArray(size));
if (txBytes.get() == NULL) return -1;
ScopedLongArrayRW txPackets(env, env->NewLongArray(size));
if (txPackets.get() == NULL) return -1;
ScopedLongArrayRW operations(env, env->NewLongArray(size));
if (operations.get() == NULL) return -1;
for (int i = 0; i < size; i++) {
ScopedLocalRef<jstring> ifaceString(env, env->NewStringUTF(lines[i].iface));
env->SetObjectArrayElement(iface.get(), i, ifaceString.get());
uid[i] = lines[i].uid;
set[i] = lines[i].set;
tag[i] = lines[i].tag;
rxBytes[i] = lines[i].rxBytes;
rxPackets[i] = lines[i].rxPackets;
txBytes[i] = lines[i].txBytes;
txPackets[i] = lines[i].txPackets;
}
env->SetIntField(stats, gNetworkStatsClassInfo.size, size);
env->SetObjectField(stats, gNetworkStatsClassInfo.iface, iface.get());
env->SetObjectField(stats, gNetworkStatsClassInfo.uid, uid.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.set, set.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.tag, tag.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.rxBytes, rxBytes.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.rxPackets, rxPackets.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.txBytes, txBytes.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.txPackets, txPackets.getJavaArray());
env->SetObjectField(stats, gNetworkStatsClassInfo.operations, operations.getJavaArray());
return 0;
}
/**
* Decode and handle hardware interrupt request from ethernet device.
*/
interrupt etherInterrupt(void)
{
// int ethnum;
struct ether *ethptr;
struct ag71xx *nicptr;
uint status, mask;
/* Initialize structure pointers */
ethptr = ðertab[0]; /* default physical ethernet for WRT54GL */
if (!ethptr)
{
return;
}
nicptr = ethptr->csr;
if (!nicptr)
{
return;
}
mask = nicptr->interruptMask;
status = nicptr->interruptStatus & mask;
/* remember interrupt status in ether struct */
ethptr->interruptStatus = status;
if (!status)
{
return;
}
resdefer = 1; /* defer rescheduling */
if (status & IRQ_TX_PKTSENT)
{
ethptr->txirq++;
txPackets(ethptr, nicptr);
}
if (status & IRQ_RX_PKTRECV)
{
ethptr->rxirq++;
rxPackets(ethptr, nicptr);
}
if (status & IRQ_RX_OVERFLOW)
{
// Clear interrupt, restart processing.
nicptr->rxStatus = RX_STAT_OVERFLOW;
nicptr->rxControl = RX_CTRL_RXE;
ethptr->errors++;
}
if ((status & IRQ_TX_UNDERFLOW) ||
(status & IRQ_TX_BUSERR) || (status & IRQ_RX_BUSERR))
{
kprintf("Ethernet ERROR 0x%08X\r\n", status);
while (1)
;
ethptr->errors++;
// etherClose(ethptr->dev);
}
if (--resdefer > 0)
{
resdefer = 0;
resched();
}
return;
}
