diff options
| -rw-r--r-- | configs/boot/devtime.rcS | 5 | ||||
| -rw-r--r-- | src/dev/i8254xGBe.cc | 29 | ||||
| -rw-r--r-- | src/dev/i8254xGBe.hh | 2 |
3 files changed, 30 insertions, 6 deletions
diff --git a/configs/boot/devtime.rcS b/configs/boot/devtime.rcS index 22a5469b8..4d1ca9407 100644 --- a/configs/boot/devtime.rcS +++ b/configs/boot/devtime.rcS @@ -1,7 +1,4 @@ -echo "switching cpus" -m5 switchcpu -echo "done" -insmod /modules/devtime.ko dataAddr=0x9000004 count=100 +insmod /modules/devtime.ko dataAddr=0x9000008 count=100 rmmod devtime insmod /modules/devtime.ko dataAddr=0x1a0000300 count=100 rmmod devtime diff --git a/src/dev/i8254xGBe.cc b/src/dev/i8254xGBe.cc index e0272c655..baf13c49a 100644 --- a/src/dev/i8254xGBe.cc +++ b/src/dev/i8254xGBe.cc @@ -656,7 +656,7 @@ IGbE::RxDescCache::writePacket(EthPacketPtr packet) return false; pktPtr = packet; - + pktDone = false; igbe->dmaWrite(igbe->platform->pciToDma(unusedCache.front()->buf), packet->length, &pktEvent, packet->data); return true; @@ -683,8 +683,12 @@ IGbE::RxDescCache::pktComplete() uint8_t status = RXDS_DD | RXDS_EOP; uint8_t err = 0; + IpPtr ip(pktPtr); + if (ip) { + DPRINTF(EthernetDesc, "Proccesing Ip packet with Id=%d\n", ip->id()); + if (igbe->regs.rxcsum.ipofld()) { DPRINTF(EthernetDesc, "Checking IP checksum\n"); status |= RXDS_IPCS; @@ -715,7 +719,10 @@ IGbE::RxDescCache::pktComplete() err |= RXDE_TCPE; } } - } // if ip + } else { // if ip + DPRINTF(EthernetSM, "Proccesing Non-Ip packet\n"); + } + desc->status = htole(status); desc->errors = htole(err); @@ -912,10 +919,20 @@ IGbE::TxDescCache::pktComplete() DPRINTF(EthernetDesc, "TxDescriptor data d1: %#llx d2: %#llx\n", desc->d1, desc->d2); + if (DTRACE(EthernetDesc)) { + IpPtr ip(pktPtr); + if (ip) + DPRINTF(EthernetDesc, "Proccesing Ip packet with Id=%d\n", + ip->id()); + else + DPRINTF(EthernetSM, "Proccesing Non-Ip packet\n"); + } + // Checksums are only ofloaded for new descriptor types if (TxdOp::isData(desc) && ( TxdOp::ixsm(desc) || TxdOp::txsm(desc)) ) { DPRINTF(EthernetDesc, "Calculating checksums for packet\n"); IpPtr ip(pktPtr); + if (TxdOp::ixsm(desc)) { ip->sum(0); ip->sum(cksum(ip)); @@ -1192,6 +1209,7 @@ IGbE::rxStateMachine() // If the packet is done check for interrupts/descriptors/etc if (rxDescCache.packetDone()) { + rxDmaPacket = false; DPRINTF(EthernetSM, "RXS: Packet completed DMA to memory\n"); int descLeft = rxDescCache.descLeft(); switch (regs.rctl.rdmts()) { @@ -1236,6 +1254,12 @@ IGbE::rxStateMachine() return; } + if (rxDmaPacket) { + DPRINTF(EthernetSM, "RXS: stopping ticking until packet DMA completes\n"); + rxTick = false; + return; + } + if (!rxDescCache.descUnused()) { DPRINTF(EthernetSM, "RXS: No descriptors available in cache, stopping ticking\n"); rxTick = false; @@ -1262,6 +1286,7 @@ IGbE::rxStateMachine() rxFifo.pop(); DPRINTF(EthernetSM, "RXS: stopping ticking until packet DMA completes\n"); rxTick = false; + rxDmaPacket = true; } void diff --git a/src/dev/i8254xGBe.hh b/src/dev/i8254xGBe.hh index 2dec3b08c..b6da53b09 100644 --- a/src/dev/i8254xGBe.hh +++ b/src/dev/i8254xGBe.hh @@ -80,6 +80,8 @@ class IGbE : public PciDev bool txTick; bool txFifoTick; + bool rxDmaPacket; + // Event and function to deal with RDTR timer expiring void rdtrProcess() { rxDescCache.writeback(0); |