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-rw-r--r--dev/etherpkt.hh68
-rw-r--r--dev/ns_gige.cc1933
-rw-r--r--dev/ns_gige.hh403
-rw-r--r--dev/ns_gige_reg.h372
4 files changed, 2776 insertions, 0 deletions
diff --git a/dev/etherpkt.hh b/dev/etherpkt.hh
index 27ac526d6..09516c427 100644
--- a/dev/etherpkt.hh
+++ b/dev/etherpkt.hh
@@ -39,8 +39,66 @@
#include "sim/host.hh"
#include "base/refcnt.hh"
+#define EADDR_LEN 6
+
class Checkpoint;
+struct pseudo_header
+{
+ uint32_t src_ip_addr;
+ uint32_t dest_ip_addr;
+ uint16_t protocol;
+ uint16_t len;
+};
+
+/** Ethernet header struct for casting purposes */
+struct eth_header
+{
+ uint8_t dest[EADDR_LEN];
+ uint8_t src[EADDR_LEN];
+ uint16_t type;
+};
+
+struct ip_header
+{
+ uint8_t vers_len;
+ uint8_t service_type;
+ uint16_t dgram_len;
+ uint16_t ID;
+ uint16_t flags_frag_offset;
+ uint8_t TTL;
+ uint8_t protocol;
+ uint16_t hdr_chksum;
+ uint32_t src_ip_addr;
+ uint32_t dest_ip_addr;
+ uint8_t *options;
+ uint8_t *transport_header;
+};
+
+struct tcp_header
+{
+ uint16_t src_port_num;
+ uint16_t dest_port_num;
+ uint32_t seq_num;
+ uint32_t ack_num;
+ uint8_t hdr_len;
+ uint8_t flags;
+ uint16_t rcv_window;
+ uint16_t chksum;
+ uint16_t urgent;
+ uint8_t *options;
+ uint8_t *data;
+};
+
+struct udp_header
+{
+ uint16_t src_port_num;
+ uint16_t dest_port_num;
+ uint16_t len;
+ uint16_t chksum;
+ uint8_t *data;
+};
+
/*
* Reference counted class containing ethernet packet data
*/
@@ -61,6 +119,16 @@ class EtherPacket : public RefCounted
bool IsMulticast() { return data[0] == 0x01; }
bool IsBroadcast() { return data[0] == 0xff; }
+ ip_header *getIpHdr() { return (ip_header *) (data + 14); }
+
+ void *getTransportHdr() {
+ ip_header *ip = getIpHdr();
+ return (void *) (ip + (ip->vers_len & 0xf));
+ }
+
+
+ typedef RefCountingPtr<EtherPacket> PacketPtr;
+
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string &section);
};
diff --git a/dev/ns_gige.cc b/dev/ns_gige.cc
new file mode 100644
index 000000000..e3c31597e
--- /dev/null
+++ b/dev/ns_gige.cc
@@ -0,0 +1,1933 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* @file
+ * Device module for modelling the National Semiconductor
+ * DP83820 ethernet controller. Does not support priority queueing
+ */
+#include <cstdio>
+#include <deque>
+#include <string>
+
+#include "base/inet.hh"
+#include "cpu/exec_context.hh"
+#include "cpu/intr_control.hh"
+#include "dev/dma.hh"
+#include "dev/ns_gige.hh"
+#include "dev/etherlink.hh"
+#include "mem/functional_mem/memory_control.hh"
+#include "mem/functional_mem/physical_memory.hh"
+#include "sim/builder.hh"
+#include "sim/host.hh"
+#include "sim/sim_stats.hh"
+#include "targetarch/vtophys.hh"
+
+using namespace std;
+
+///////////////////////////////////////////////////////////////////////
+//
+// EtherDev PCI Device
+//
+EtherDev::EtherDev(const string &_name, DmaEngine *de, bool use_interface,
+ IntrControl *i, MemoryController *mmu, PhysicalMemory *pmem,
+ PCIConfigAll *cf, PciConfigData *cd, Tsunami *t, uint32_t bus,
+ uint32_t dev, uint32_t func, bool rx_filter,
+ const int eaddr[6], Tick tx_delay, Tick rx_delay, Addr addr,
+ Addr mask)
+ : PciDev(_name, mmu, cf, cd, bus, dev, func), tsunami(t),
+ addr(addr), mask(mask), txPacketLen(0),
+ txPacketBufPtr(NULL), rxPacketBufPtr(NULL), rxDescBufPtr(NULL),
+ fragLen(0), rxCopied(0), txState(txIdle), CTDD(false), txFifoCnt(0),
+ txFifoAvail(MAX_TX_FIFO_SIZE), txHalt(false), txPacketFlag(false),
+ txFragPtr(0), txDescCnt(0), rxState(rxIdle), CRDD(false),
+ rxPktBytes(0), rxFifoCnt(0), rxHalt(false), rxPacketFlag(false),
+ rxFragPtr(0), rxDescCnt(0), extstsEnable(false), maxTxBurst(0),
+ maxRxBurst(0), physmem(pmem),
+ rxDescDoneCB(this), rxDoneCB(this), txDescDoneCB(this), txDoneCB(this),
+ dma(de), readRequest(use_interface), writeRequest(use_interface),
+ readDescRequest(use_interface), writeDescRequest(use_interface),
+ interface(NULL), intctrl(i), txDelay(tx_delay), rxDelay(rx_delay),
+ txEvent(this), cpuPendingIntr(false), rxFilterEnable(rx_filter),
+ acceptBroadcast(false), acceptMulticast(false), acceptUnicast(false),
+ acceptPerfect(false), acceptArp(false)
+{
+ tsunami->ethernet = this;
+
+ memset(&regs, 0, sizeof(regs));
+ regsReset();
+ regs.perfectMatch[0] = eaddr[0];
+ regs.perfectMatch[1] = eaddr[1];
+ regs.perfectMatch[2] = eaddr[2];
+ regs.perfectMatch[3] = eaddr[3];
+ regs.perfectMatch[4] = eaddr[4];
+ regs.perfectMatch[5] = eaddr[5];
+
+}
+
+EtherDev::~EtherDev()
+{}
+
+void
+EtherDev::regStats()
+{
+ txBytes
+ .name(name() + ".txBytes")
+ .desc("Bytes Transmitted")
+ .prereq(txBytes)
+ ;
+
+ rxBytes
+ .name(name() + ".rxBytes")
+ .desc("Bytes Received")
+ .prereq(rxBytes)
+ ;
+
+ txPackets
+ .name(name() + ".txPackets")
+ .desc("Number of Packets Transmitted")
+ .prereq(txBytes)
+ ;
+
+ rxPackets
+ .name(name() + ".rxPackets")
+ .desc("Number of Packets Received")
+ .prereq(rxBytes)
+ ;
+
+ txBandwidth
+ .name(name() + ".txBandwidth")
+ .desc("Transmit Bandwidth (bits/s)")
+ .precision(0)
+ .prereq(txBytes)
+ ;
+
+ rxBandwidth
+ .name(name() + ".rxBandwidth")
+ .desc("Receive Bandwidth (bits/s)")
+ .precision(0)
+ .prereq(rxBytes)
+ ;
+
+ txPacketRate
+ .name(name() + ".txPPS")
+ .desc("Packet Tranmission Rate (packets/s)")
+ .precision(0)
+ .prereq(txBytes)
+ ;
+
+ rxPacketRate
+ .name(name() + ".rxPPS")
+ .desc("Packet Reception Rate (packets/s)")
+ .precision(0)
+ .prereq(rxBytes)
+ ;
+
+ txBandwidth = txBytes * Statistics::constant(8) / simSeconds;
+ rxBandwidth = rxBytes * Statistics::constant(8) / simSeconds;
+ txPacketRate = txPackets / simSeconds;
+ rxPacketRate = rxPackets / simSeconds;
+}
+
+void
+EtherDev::ReadConfig(int offset, int size, uint8_t *data)
+{
+ if (offset < PCI_DEVICE_SPECIFIC)
+ PciDev::ReadConfig(offset, size, data);
+ else {
+ panic("need to do this\n");
+ }
+}
+
+void
+EtherDev::WriteConfig(int offset, int size, uint32_t data)
+{
+ if (offset < PCI_DEVICE_SPECIFIC)
+ PciDev::WriteConfig(offset, size, data);
+ else
+ panic("Need to do that\n");
+}
+
+Fault
+EtherDev::read(MemReqPtr req, uint8_t *data)
+{
+ DPRINTF(Ethernet, "read va=%#x size=%d\n", req->vaddr, req->size);
+
+ Addr daddr = req->paddr - addr;
+
+ if (daddr > LAST)
+ panic("Accessing reserved register");
+
+ switch (req->size) {
+ case sizeof(uint32_t):
+ {
+ uint32_t &reg = *(uint32_t *)data;
+
+ switch (daddr) {
+ case CR:
+ reg = regs.command;
+ reg &= ~(CR_RXD | CR_TXD | CR_TXR | CR_RXR);
+ break;
+
+ case CFG:
+ reg = regs.config;
+ break;
+
+ case MEAR:
+ reg = regs.mear;
+ break;
+
+ case PTSCR:
+ reg = regs.ptscr;
+ break;
+
+ case ISR:
+ reg = regs.isr;
+ regs.isr = 0;
+ break;
+
+ case IMR:
+ reg = regs.imr;
+ break;
+
+ case IER:
+ reg = regs.ier;
+ break;
+
+ case IHR:
+ reg = regs.ihr;
+ break;
+
+ case TXDP:
+ reg = regs.txdp;
+ break;
+
+ case TXDP_HI:
+ reg = regs.txdp_hi;
+ break;
+
+ case TXCFG:
+ reg = regs.txcfg;
+ break;
+
+ case GPIOR:
+ reg = regs.gpior;
+ break;
+
+ case RXDP:
+ reg = regs.rxdp;
+ break;
+
+ case RXDP_HI:
+ reg = regs.rxdp_hi;
+ break;
+
+ case RXCFG:
+ reg = regs.rxcfg;
+ break;
+
+ case PQCR:
+ reg = regs.pqcr;
+ break;
+
+ case WCSR:
+ reg = regs.wcsr;
+ break;
+
+ case PCR:
+ reg = regs.pcr;
+ break;
+
+ case RFCR:
+ reg = regs.rfcr;
+ break;
+
+ case RFDR:
+
+ switch (regs.rfcr & RFCR_RFADDR) {
+ case 0x000:
+ reg = regs.perfectMatch[1] << 8;
+ reg += regs.perfectMatch[0];
+ break;
+ case 0x002:
+ reg = regs.perfectMatch[3] << 8;
+ reg += regs.perfectMatch[2];
+ break;
+ case 0x004:
+ reg = regs.perfectMatch[5] << 8;
+ reg += regs.perfectMatch[4];
+ break;
+ default:
+ panic("reading from RFDR for something for other than PMATCH!\n");
+ //didn't implement other RFDR functionality b/c driver didn't use
+ }
+ break;
+
+ case SRR:
+ reg = regs.srr;
+ break;
+
+ case MIBC:
+ reg = regs.mibc;
+ reg &= ~(MIBC_MIBS | MIBC_ACLR);
+ break;
+
+ case VRCR:
+ reg = regs.vrcr;
+ break;
+
+ case VTCR:
+ reg = regs.vtcr;
+ break;
+
+ case VDR:
+ reg = regs.vdr;
+ break;
+
+ case CCSR:
+ reg = regs.ccsr;
+ break;
+
+ case TBICR:
+ reg = regs.tbicr;
+ break;
+
+ case TBISR:
+ reg = regs.tbisr;
+ break;
+
+ case TANAR:
+ reg = regs.tanar;
+ break;
+
+ case TANLPAR:
+ reg = regs.tanlpar;
+ break;
+
+ case TANER:
+ reg = regs.taner;
+ break;
+
+ case TESR:
+ reg = regs.tesr;
+ break;
+
+ default:
+ panic("reading unimplemented register: addr = %#x", daddr);
+ }
+
+ DPRINTF(Ethernet, "read from %#x: data=%d data=%#x\n", daddr, reg, reg);
+ }
+ break;
+
+ default:
+ panic("accessing register with invalid size: addr=%#x, size=%d",
+ daddr, req->size);
+ }
+
+ return No_Fault;
+}
+
+Fault
+EtherDev::write(MemReqPtr req, const uint8_t *data)
+{
+ DPRINTF(Ethernet, "write va=%#x size=%d\n", req->vaddr, req->size);
+
+ Addr daddr = req->paddr - addr;
+
+ if (daddr > LAST && daddr <= RESERVED)
+ panic("Accessing reserved register");
+
+ if (daddr > RESERVED)
+ panic("higher memory accesses not implemented!\n");
+
+ if (req->size == sizeof(uint32_t)) {
+ uint32_t reg = *(uint32_t *)data;
+ DPRINTF(Ethernet, "write data=%d data=%#x\n", reg, reg);
+
+ switch (daddr) {
+ case CR:
+ regs.command = reg;
+ if ((reg & (CR_TXE | CR_TXD)) == (CR_TXE | CR_TXD)) {
+ txHalt = true;
+ } else if (reg & CR_TXE) {
+ if (txState == txIdle)
+ txKick();
+ } else if (reg & CR_TXD) {
+ txHalt = true;
+ }
+
+ if ((reg & (CR_RXE | CR_RXD)) == (CR_RXE | CR_RXD)) {
+ rxHalt = true;
+ } else if (reg & CR_RXE) {
+ if (rxState == rxIdle) {
+ rxKick();
+ }
+ } else if (reg & CR_RXD) {
+ rxHalt = true;
+ }
+
+ if (reg & CR_TXR)
+ txReset();
+
+ if (reg & CR_RXR)
+ rxReset();
+
+ if (reg & CR_SWI)
+ devIntrPost(ISR_SWI);
+
+ if (reg & CR_RST) {
+ txReset();
+ rxReset();
+ regsReset();
+ }
+ break;
+
+ case CFG:
+ regs.config = reg;
+ if (reg & CFG_LNKSTS || reg & CFG_SPDSTS || reg & CFG_DUPSTS
+ || reg & CFG_RESERVED || reg & CFG_T64ADDR
+ || reg & CFG_PCI64_DET)
+ panic("writing to read-only or reserved CFG bits!\n");
+
+#if 0
+ if (reg & CFG_TBI_EN) ;
+ if (reg & CFG_MODE_1000) ;
+#endif
+
+ if (reg & CFG_AUTO_1000)
+ panic("CFG_AUTO_1000 not implemented!\n");
+
+#if 0
+ if (reg & CFG_PINT_DUPSTS || reg & CFG_PINT_LNKSTS || reg & CFG_PINT_SPDSTS) ;
+ if (reg & CFG_TMRTEST) ;
+ if (reg & CFG_MRM_DIS) ;
+ if (reg & CFG_MWI_DIS) ;
+#endif
+
+ if (reg & CFG_T64ADDR)
+ panic("CFG_T64ADDR is read only register!\n");
+
+ if (reg & CFG_PCI64_DET)
+ panic("CFG_PCI64_DET is read only register!\n");
+
+#if 0
+ if (reg & CFG_DATA64_EN) ;
+ if (reg & CFG_M64ADDR) ;
+ if (reg & CFG_PHY_RST) ;
+ if (reg & CFG_PHY_DIS) ;
+#endif
+
+ if (reg & CFG_EXTSTS_EN)
+ extstsEnable = true;
+ else
+ extstsEnable = false;
+
+#if 0
+ if (reg & CFG_REQALG) ;
+ if (reg & CFG_SB) ;
+ if (reg & CFG_POW) ;
+ if (reg & CFG_EXD) ;
+ if (reg & CFG_PESEL) ;
+ if (reg & CFG_BROM_DIS) ;
+ if (reg & CFG_EXT_125) ;
+ if (reg & CFG_BEM) ;
+#endif
+ break;
+
+ case MEAR:
+ regs.mear = reg;
+ /* since phy is completely faked, MEAR_MD* don't matter
+ and since the driver never uses MEAR_EE*, they don't matter */
+#if 0
+ if (reg & MEAR_EEDI) ;
+ if (reg & MEAR_EEDO) ; //this one is read only
+ if (reg & MEAR_EECLK) ;
+ if (reg & MEAR_EESEL) ;
+ if (reg & MEAR_MDIO) ;
+ if (reg & MEAR_MDDIR) ;
+ if (reg & MEAR_MDC) ;
+#endif
+ break;
+
+ case PTSCR:
+ regs.ptscr = reg;
+ /* these control BISTs for various parts of chip - we don't care or do */
+ break;
+
+ case ISR: /* writing to the ISR has no effect */
+ panic("ISR is a read only register!\n");
+
+ case IMR:
+ regs.imr = reg;
+ devIntrChangeMask();
+ break;
+
+ case IER:
+ regs.ier = reg;
+ break;
+
+ case IHR:
+ regs.ihr = reg;
+ /* not going to implement real interrupt holdoff */
+ break;
+
+ case TXDP:
+ regs.txdp = (reg & 0xFFFFFFFC);
+ assert(txState == txIdle);
+ CTDD = false;
+ break;
+
+ case TXDP_HI:
+ regs.txdp_hi = reg;
+ break;
+
+ case TXCFG:
+ regs.txcfg = reg;
+#if 0
+ if (reg & TXCFG_CSI) ;
+ if (reg & TXCFG_HBI) ;
+ if (reg & TXCFG_MLB) ;
+ if (reg & TXCFG_ATP) ;
+ if (reg & TXCFG_ECRETRY) ; /* this could easily be implemented, but
+ considering the network is just a fake
+ pipe, wouldn't make sense to do this */
+
+ if (reg & TXCFG_BRST_DIS) ;
+#endif
+
+#if 0 /* current 2.6 driver doesn't use these. if we upgrade, may need these */
+ if (reg & TXCFG_MXDMA1024)
+ maxTxBurst = 1024;
+
+ if (reg & TXCFG_MXDMA8)
+ maxTxBurst = 8;
+
+ if (reg & TXCFG_MXDMA16)
+ maxTxBurst = 16;
+
+ if (reg & TXCFG_MXDMA32)
+ maxTxBurst = 32;
+
+ if (reg & TXCFG_MXDMA64)
+ maxTxBurst = 64;
+
+ if (reg & TXCFG_MXDMA128)
+ maxTxBurst = 128;
+
+ if (reg & TXCFG_MXDMA256)
+ maxTxBurst = 256;
+#endif
+
+ if (reg & TXCFG_MXDMA512)
+ maxTxBurst = 512;
+
+ break;
+
+ case GPIOR:
+ regs.gpior = reg;
+ /* these just control general purpose i/o pins, don't matter */
+ break;
+
+ case RXCFG:
+ regs.rxcfg = reg;
+#if 0
+ if (reg & RXCFG_AEP) ;
+ if (reg & RXCFG_ARP) ;
+ if (reg & RXCFG_STRIPCRC) ;
+ if (reg & RXCFG_RX_RD) ;
+ if (reg & RXCFG_ALP) ;
+ if (reg & RXCFG_AIRL) ;
+#endif
+
+ if (reg & RXCFG_MXDMA512)
+ maxRxBurst = 512;
+
+#if 0
+ if (reg & (RXCFG_DRTH | RXCFG_DRTH0)) ;
+#endif
+ break;
+
+ case PQCR:
+ /* there is no priority queueing used in the linux 2.6 driver */
+ regs.pqcr = reg;
+ break;
+
+ case WCSR:
+ /* not going to implement wake on LAN */
+ regs.wcsr = reg;
+ break;
+
+ case PCR:
+ /* not going to implement pause control */
+ regs.pcr = reg;
+ break;
+
+ case RFCR:
+ regs.rfcr = reg;
+ rxFilterEnable = (reg & RFCR_RFEN) ? true : false;
+
+ acceptBroadcast = (reg & RFCR_AAB) ? true : false;
+
+ acceptMulticast = (reg & RFCR_AAM) ? true : false;
+
+ acceptUnicast = (reg & RFCR_AAU) ? true : false;
+
+ acceptPerfect = (reg & RFCR_APM) ? true : false;
+
+ acceptArp = (reg & RFCR_AARP) ? true : false;
+
+ if (reg & RFCR_APAT)
+ panic("RFCR_APAT not implemented!\n");
+
+ if (reg & RFCR_MHEN || reg & RFCR_UHEN)
+ panic("hash filtering not implemented!\n");
+
+ if (reg & RFCR_ULM)
+ panic("RFCR_ULM not implemented!\n");
+
+ break;
+
+ case RFDR:
+ panic("the driver never writes to RFDR, something is wrong!\n");
+
+ case BRAR:
+ panic("the driver never uses BRAR, something is wrong!\n");
+
+ case BRDR:
+ panic("the driver never uses BRDR, something is wrong!\n");
+
+ case SRR:
+ panic("SRR is read only register!\n");
+
+ case MIBC:
+ panic("the driver never uses MIBC, something is wrong!\n");
+
+ case VRCR:
+ regs.vrcr = reg;
+ break;
+
+ case VTCR:
+ regs.vtcr = reg;
+ break;
+
+ case VDR:
+ panic("the driver never uses VDR, something is wrong!\n");
+ break;
+
+ case CCSR:
+ /* not going to implement clockrun stuff */
+ regs.ccsr = reg;
+ break;
+
+ case TBICR:
+ regs.tbicr = reg;
+ if (reg & TBICR_MR_LOOPBACK)
+ panic("TBICR_MR_LOOPBACK never used, something wrong!\n");
+
+ if (reg & TBICR_MR_AN_ENABLE) {
+ regs.tanlpar = regs.tanar;
+ regs.tbisr |= (TBISR_MR_AN_COMPLETE | TBISR_MR_LINK_STATUS);
+ }
+
+#if 0
+ if (reg & TBICR_MR_RESTART_AN) ;
+#endif
+
+ break;
+
+ case TBISR:
+ panic("TBISR is read only register!\n");
+
+ case TANAR:
+ regs.tanar = reg;
+ if (reg & TANAR_PS2)
+ panic("this isn't used in driver, something wrong!\n");
+
+ if (reg & TANAR_PS1)
+ panic("this isn't used in driver, something wrong!\n");
+ break;
+
+ case TANLPAR:
+ panic("this should only be written to by the fake phy!\n");
+
+ case TANER:
+ panic("TANER is read only register!\n");
+
+ case TESR:
+ regs.tesr = reg;
+ break;
+
+ default:
+ panic("thought i covered all the register, what is this? addr=%#x",
+ daddr);
+ }
+ } else
+ panic("Invalid Request Size");
+
+ return No_Fault;
+}
+
+void
+EtherDev::devIntrPost(uint32_t interrupts)
+{
+DPRINTF(Ethernet, "interrupt posted intr=%x isr=%x imr=%x\n",
+ interrupts, regs.isr, regs.imr);
+
+if (interrupts & ISR_RESERVE)
+ panic("Cannot set a reserved interrupt");
+
+if (interrupts & ISR_TXRCMP)
+ regs.isr |= ISR_TXRCMP;
+
+if (interrupts & ISR_RXRCMP)
+ regs.isr |= ISR_RXRCMP;
+
+//ISR_DPERR not implemented
+//ISR_SSERR not implemented
+//ISR_RMABT not implemented
+//ISR_RXSOVR not implemented
+//ISR_HIBINT not implemented
+//ISR_PHY not implemented
+//ISR_PME not implemented
+
+if (interrupts & ISR_SWI)
+ regs.isr |= ISR_SWI;
+
+//ISR_MIB not implemented
+//ISR_TXURN not implemented
+
+ if (interrupts & ISR_TXIDLE)
+ regs.isr |= ISR_TXIDLE;
+
+ if (interrupts & ISR_TXERR)
+ regs.isr |= ISR_TXERR;
+
+ if (interrupts & ISR_TXDESC)
+ regs.isr |= ISR_TXDESC;
+
+ if (interrupts & ISR_TXOK)
+ regs.isr |= ISR_TXOK;
+
+ if (interrupts & ISR_RXORN)
+ regs.isr |= ISR_RXORN;
+
+ if (interrupts & ISR_RXIDLE)
+ regs.isr |= ISR_RXIDLE;
+
+//ISR_RXEARLY not implemented
+
+ if (interrupts & ISR_RXERR)
+ regs.isr |= ISR_RXERR;
+
+ if (interrupts & ISR_RXOK)
+ regs.isr |= ISR_RXOK;
+
+ if ((regs.isr & regs.imr))
+ cpuIntrPost();
+}
+
+void
+EtherDev::devIntrClear(uint32_t interrupts)
+{
+ DPRINTF(Ethernet, "interrupt cleared intr=%x isr=%x imr=%x\n",
+ interrupts, regs.isr, regs.imr);
+
+ if (interrupts & ISR_RESERVE)
+ panic("Cannot clear a reserved interrupt");
+
+ if (interrupts & ISR_TXRCMP)
+ regs.isr &= ~ISR_TXRCMP;
+
+ if (interrupts & ISR_RXRCMP)
+ regs.isr &= ~ISR_RXRCMP;
+
+//ISR_DPERR not implemented
+//ISR_SSERR not implemented
+//ISR_RMABT not implemented
+//ISR_RXSOVR not implemented
+//ISR_HIBINT not implemented
+//ISR_PHY not implemented
+//ISR_PME not implemented
+
+ if (interrupts & ISR_SWI)
+ regs.isr &= ~ISR_SWI;
+
+//ISR_MIB not implemented
+//ISR_TXURN not implemented
+
+ if (interrupts & ISR_TXIDLE)
+ regs.isr &= ~ISR_TXIDLE;
+
+ if (interrupts & ISR_TXERR)
+ regs.isr &= ~ISR_TXERR;
+
+ if (interrupts & ISR_TXDESC)
+ regs.isr &= ~ISR_TXDESC;
+
+ if (interrupts & ISR_TXOK)
+ regs.isr &= ~ISR_TXOK;
+
+ if (interrupts & ISR_RXORN)
+ regs.isr &= ~ISR_RXORN;
+
+ if (interrupts & ISR_RXIDLE)
+ regs.isr &= ~ISR_RXIDLE;
+
+//ISR_RXEARLY not implemented
+
+ if (interrupts & ISR_RXERR)
+ regs.isr &= ~ISR_RXERR;
+
+ if (interrupts & ISR_RXOK)
+ regs.isr &= ~ISR_RXOK;
+
+ if ((regs.isr & regs.imr))
+ cpuIntrPost();
+
+ if (!(regs.isr & regs.imr))
+ cpuIntrClear();
+}
+
+void
+EtherDev::devIntrChangeMask()
+{
+ DPRINTF(Ethernet, "iterrupt mask changed\n");
+
+ if (regs.isr & regs.imr)
+ cpuIntrPost();
+ else
+ cpuIntrClear();
+}
+
+void
+EtherDev::cpuIntrPost()
+{
+ if (!cpuPendingIntr) {
+ if (regs.ier) {
+ cpuPendingIntr = true;
+ intctrl->post(TheISA::INTLEVEL_IRQ1, TheISA::INTINDEX_ETHERNET);
+ }
+ }
+}
+
+void
+EtherDev::cpuIntrClear()
+{
+ if (cpuPendingIntr) {
+ cpuPendingIntr = false;
+ intctrl->clear(TheISA::INTLEVEL_IRQ1, TheISA::INTINDEX_ETHERNET);
+ }
+}
+
+bool
+EtherDev::cpuIntrPending() const
+{ return cpuPendingIntr; }
+
+void
+EtherDev::txReset()
+{
+
+ DPRINTF(Ethernet, "transmit reset\n");
+
+ txPacketFlag = false;
+ CTDD = false;
+ txFifoCnt = 0;
+ txFifoAvail = 0;
+ txHalt = false;
+ txFifo.clear();
+ descAddrFifo.clear();
+ regs.command &= ~CR_TXE;
+ txState = txIdle;
+}
+
+void
+EtherDev::rxReset()
+{
+ DPRINTF(Ethernet, "receive reset\n");
+
+ rxPacketFlag = false;
+ CRDD = false;
+ fragLen = 0;
+ rxFifoCnt = 0;
+ rxHalt = false;
+ rxFifo.clear();
+ regs.command &= ~CR_RXE;
+ rxState = rxIdle;
+}
+
+/**
+ * This sets up a DMA transfer to read one data segment from the rxFifo into
+ * the buffer indicated by rxDescCache.bufptr. Assumes the value of rxFragPtr
+ * is already correctly set.
+ */
+void
+EtherDev::writeOneFrag()
+{
+ /* i think there is no need for an "in use" warning here like in old */
+ fragLen = rxFifo.front()->length; //length of whole packet
+ fragLen = (fragLen < rxDescCnt) ? fragLen : rxDescCnt;
+
+ writePhys.addr = rxFragPtr;
+ writePhys.length = fragLen;
+
+ // Set up DMA request area
+ writeRequest.init(&rxDoneCB, 0, false, &writePhys, 1, fragLen,
+ rxDescBufPtr, fragLen, curTick);
+
+ dma->doTransfer(&readRequest);
+}
+
+void
+EtherDev::rxKick()
+{
+ DPRINTF(Ethernet, "receive state machine activated!\n");
+
+ if (CRDD) {
+ rxState = rxDescRefr;
+ readOneDesc(rx, LINK_LEN);
+ } else {
+ rxState = rxDescRead;
+ readOneDesc(rx);
+ }
+}
+
+EtherDev::RxDescDone::RxDescDone(EtherDev *e)
+ : ethernet(e)
+{
+}
+
+std::string
+EtherDev::RxDescDone::name() const
+{
+ return ethernet->name() + ".rxDescDoneCB";
+}
+
+void
+EtherDev::RxDescDone::process()
+{
+ DPRINTF(Ethernet, "receive descriptor done callback\n");
+ ethernet->rxDescDone();
+}
+
+void
+EtherDev::rxDescDone()
+{
+ if (rxState == rxDescRefr) {
+ if (rxDescCache.link == 0) {
+ rxState = rxIdle;
+ regs.command &= ~CR_RXE;
+ devIntrPost(ISR_RXIDLE);
+ return;
+ } else {
+ rxState = rxDescRead;
+ regs.rxdp = rxDescCache.link;
+ CRDD = false;
+ readOneDesc(rx);
+ }
+ } else if (rxState == rxDescRead) {
+ if (rxDescCache.cmdsts & CMDSTS_OWN) {
+ rxState = rxIdle;
+ regs.command &= ~CR_RXE;
+ devIntrPost(ISR_RXIDLE);
+ } else {
+ rxState = rxFifoBlock;
+ rxFragPtr = rxDescCache.bufptr;
+ rxDescCnt = rxDescCache.cmdsts & CMDSTS_LEN_MASK;
+
+ if (!rxFifo.empty()) {
+ rxState = rxFragWrite;
+ if (!rxPacketFlag) { // reading a new packet
+ rxPacketBufPtr = rxFifo.front()->data;
+ rxPacketBufPtr -= rxDescCnt;
+ rxDescBufPtr = rxPacketBufPtr;
+ rxCopied = 0;
+ } else {
+ rxDescBufPtr = rxPacketBufPtr - rxDescCnt;
+ }
+ writeOneFrag();
+ }
+ }
+ } else if (rxState == rxDescWrite) {
+ devIntrPost(ISR_RXOK);
+
+ if (rxDescCache.cmdsts & CMDSTS_INTR)
+ devIntrPost(ISR_RXDESC);
+
+ if (rxDescCache.link == 0 || ((rxPktBytes != 0) && rxHalt)) {
+ rxState = rxIdle;
+ regs.command &= ~CR_RXE;
+ devIntrPost(ISR_RXIDLE);
+ rxHalt = false;
+ } else {
+ rxState = rxDescRead;
+ regs.rxdp = rxDescCache.link;
+ CRDD = false;
+ readOneDesc(rx);
+ }
+ }
+}
+
+EtherDev::RxDone::RxDone(EtherDev *e)
+ : ethernet(e)
+{
+}
+
+std::string
+EtherDev::RxDone::name() const
+{
+ return ethernet->name() + ".rxDoneCB";
+}
+
+void
+EtherDev::RxDone::process()
+{
+ DPRINTF(Ethernet, "receive done callback\n");
+ ethernet->rxDone();
+}
+
+void
+EtherDev::rxDone()
+{
+ DPRINTF(Ethernet, "packet received to host memory\n");
+
+ if (!rxDescCache.cmdsts & CMDSTS_OWN)
+ panic("This descriptor is already owned by the driver!\n");
+
+ rxState = rxFifoBlock;
+ rxCopied += fragLen;
+ rxFifoCnt -= fragLen;
+
+ if (rxDescCnt) { /* there is still data left in the descriptor */
+ rxState = rxFragWrite;
+ rxDescBufPtr += fragLen;
+ writeOneFrag();
+ } else {
+ rxState = rxDescWrite;
+ if (rxPktBytes == 0) { /* packet is done */
+ rxDescCache.cmdsts |= CMDSTS_OWN;
+ rxDescCache.cmdsts &= ~CMDSTS_MORE;
+ rxDescCache.cmdsts |= CMDSTS_OK;
+ rxDescCache.cmdsts += rxCopied; //i.e. set CMDSTS_SIZE
+
+ rxPacketFlag = false;
+ if (rxFilterEnable) {
+ rxDescCache.cmdsts &= ~CMDSTS_DEST_MASK;
+ if (rxFifo.front()->IsUnicast())
+ rxDescCache.cmdsts |= CMDSTS_DEST_SELF;
+ if (rxFifo.front()->IsMulticast())
+ rxDescCache.cmdsts |= CMDSTS_DEST_MULTI;
+ if (rxFifo.front()->IsBroadcast())
+ rxDescCache.cmdsts |= CMDSTS_DEST_MASK;
+ }
+
+ PacketPtr &pkt = rxFifo.front();
+ eth_header *eth = (eth_header *) pkt->data;
+ if (eth->type == 0x800 && extstsEnable) {
+ rxDescCache.extsts |= EXTSTS_IPPKT;
+ if (!ipChecksum(pkt, false))
+ rxDescCache.extsts |= EXTSTS_IPERR;
+ ip_header *ip = rxFifo.front()->getIpHdr();
+
+ if (ip->protocol == 6) {
+ rxDescCache.extsts |= EXTSTS_TCPPKT;
+ if (!tcpChecksum(pkt, false))
+ rxDescCache.extsts |= EXTSTS_TCPERR;
+ } else if (ip->protocol == 17) {
+ rxDescCache.extsts |= EXTSTS_UDPPKT;
+ if (!udpChecksum(pkt, false))
+ rxDescCache.extsts |= EXTSTS_UDPERR;
+ }
+ }
+
+ rxFifo.front() = NULL;
+ rxFifo.pop_front();
+ } else { /* just the descriptor is done */
+ rxDescCache.cmdsts |= CMDSTS_OWN;
+ rxDescCache.cmdsts |= CMDSTS_MORE;
+ }
+ writeDescPhys.addr = regs.rxdp + LINK_LEN + BUFPTR_LEN;
+ writeDescPhys.length = CMDSTS_LEN;
+
+ writeDescRequest.init(&rxDescDoneCB, 0, true, &writeDescPhys, 1,
+ CMDSTS_LEN, (uint8_t *) &rxDescCache.cmdsts,
+ CMDSTS_LEN, curTick);
+ }
+}
+
+/**
+ * This sets up a DMA transfer to read one descriptor into the network device.
+ */
+void
+EtherDev::readOneDesc(dir_t dir, uint32_t len) {
+ readDescPhys.addr = (dir == tx) ? regs.txdp : regs.rxdp;
+ readDescPhys.length = len;
+
+ ns_desc *cache = (dir == tx) ? &txDescCache : &rxDescCache;
+
+ /* THIS ASSUMES THAT DESC_LEN < regs.txcfg's maxdma value,
+ which is 512 bytes in the driver, so i'll just hard code it here */
+ readDescRequest.init(&txDescDoneCB, 0, false, &readDescPhys, 1,
+ len, (uint8_t *) cache , len, curTick);
+
+ dma->doTransfer(&readDescRequest);
+}
+
+/**
+ * This sets up a DMA transfer to read one data segment of the descriptor in
+ * txDescCache. Assumes the value of txFragPtr is already correctly set
+ */
+void
+EtherDev::readOneFrag()
+{
+ /* i think there is no need for an "in use" warning here like in old */
+ fragLen = (txDescCnt < txFifoAvail) ? txDescCnt : txFifoAvail;
+ readPhys.addr = txFragPtr;
+ readPhys.length = fragLen;
+
+ // Set up DMA request area
+ readRequest.init(&txDoneCB, 0, false, &readPhys, 1, fragLen,
+ txPacketBufPtr, fragLen, curTick);
+
+ dma->doTransfer(&readRequest);
+}
+
+void
+EtherDev::transmit()
+{
+ if (txFifo.empty()) {
+ DPRINTF(Ethernet, "nothing to transmit\n");
+ return;
+ }
+
+ if (interface->sendPacket(txFifo.front())) {
+ DPRINTF(Ethernet, "transmit packet\n");
+ txBytes += txFifo.front()->length;
+ txPackets++;
+
+ txFifoCnt -= txFifo.front()->length;
+
+ txFifo.front() = NULL;
+ txFifo.pop_front();
+
+ txDescCache.cmdsts &= ~CMDSTS_OK;
+ } else {
+ txDescCache.cmdsts &= ~CMDSTS_ERR;
+ }
+
+ txDescCache.cmdsts &= ~CMDSTS_OWN;
+
+ writeDescPhys.addr = descAddrFifo.front() + LINK_LEN + BUFPTR_LEN;
+ writeDescPhys.length = CMDSTS_LEN;
+
+ descAddrFifo.front() = 0;
+ descAddrFifo.pop_front();
+
+ writeDescRequest.init(&txDescDoneCB, 0, true, &writeDescPhys, 1,
+ writeDescPhys.length,
+ (uint8_t *) &(txDescCache.cmdsts),
+ writeDescPhys.length, curTick);
+
+ dma->doTransfer(&writeDescRequest);
+
+ transmit();
+}
+
+void
+EtherDev::txKick()
+{
+ DPRINTF(Ethernet, "transmit state machine activated\n");
+#if 0
+ if (DTRACE(Ethernet))
+ txDump();
+#endif
+
+ if (CTDD) {
+ txState = txDescRefr;
+ readOneDesc(tx, LINK_LEN);
+ } else {
+ txState = txDescRead;
+ readOneDesc(tx);
+ }
+}
+
+EtherDev::TxDescDone::TxDescDone(EtherDev *e)
+ : ethernet(e)
+{
+}
+
+std::string
+EtherDev::TxDescDone::name() const
+{
+ return ethernet->name() + ".txDescDoneCB";
+}
+
+void
+EtherDev::TxDescDone::process()
+{
+ DPRINTF(Ethernet, "transmit descriptor done callback\n");
+ ethernet->txDescDone();
+
+}
+
+void
+EtherDev::txDescDone()
+{
+ if (txState == txFifoBlock) {
+ if (txDescCache.cmdsts & CMDSTS_OK) {
+ devIntrPost(ISR_TXOK);
+ } else if (txDescCache.cmdsts & CMDSTS_ERR) {
+ devIntrPost(ISR_TXERR);
+ }
+ } else if (txState == txDescRefr || txState == txDescWrite) {
+
+ if (txState == txDescWrite) {
+ if (txDescCache.cmdsts & CMDSTS_INTR) {
+ devIntrPost(ISR_TXDESC);
+ }
+ }
+
+ if (txDescCache.link == 0) {
+ txState = txIdle;
+ regs.command &= ~CR_TXE;
+ devIntrPost(ISR_TXIDLE);
+ return;
+ } else {
+ txState = txDescRead;
+ regs.txdp = txDescCache.link;
+ CTDD = false;
+ readOneDesc(tx);
+ }
+ } else if (txState == txDescRead) {
+ if (txDescCache.cmdsts & CMDSTS_OWN) {
+ txState = txFifoBlock;
+ txFragPtr = txDescCache.bufptr;
+ txDescCnt = txDescCache.cmdsts & CMDSTS_LEN_MASK;
+
+ if (txFifoAvail >= ((regs.txcfg & TXCFG_FLTH_MASK) >> 8)) {
+ txState = txFragRead;
+ if (!txPacketFlag) {
+ txPacketFlag = true;
+ /* find the total length of this packet */
+ txPacketLen = txDescCnt;
+ bool more = txDescCache.cmdsts & CMDSTS_MORE;
+ uint8_t *addr = (uint8_t *) regs.txdp;
+ while (more) {
+ addr = physmem->dma_addr(((ns_desc *) addr)->link, sizeof(ns_desc));
+ /* !!!!!!mask needed? */
+ txPacketLen += ((ns_desc *)addr)->cmdsts & CMDSTS_LEN_MASK;
+ more = ((ns_desc *) addr)->cmdsts & CMDSTS_MORE;
+ }
+ PacketPtr &packet = txDoneCB.packet;
+ packet = new EtherPacket;
+ packet->length = txPacketLen;
+ packet->data = new uint8_t[txPacketLen];
+ txPacketBufPtr = packet->data;
+ }
+ readOneFrag();
+ }
+ } else {
+ txState = txIdle;
+ regs.command &= ~CR_TXE;
+ devIntrPost(ISR_TXIDLE);
+ }
+ }
+}
+
+EtherDev::TxDone::TxDone(EtherDev *e)
+ : ethernet(e)
+{
+}
+
+std::string
+EtherDev::TxDone::name() const
+{
+ return ethernet->name() + ".txDoneCB";
+}
+
+
+void
+EtherDev::TxDone::process()
+{
+ DPRINTF(Ethernet, "transmit done callback\n");
+ ethernet->txDone(packet);
+}
+
+void
+EtherDev::txDone(PacketPtr packet)
+{
+ DPRINTF(Ethernet, "transmit done\n");
+
+ if (!txDescCache.cmdsts & CMDSTS_OWN)
+ panic("This descriptor is already owned by the driver!\n");
+
+ txState = txFifoBlock;
+
+ txPacketBufPtr += fragLen; /* hope this ptr manipulation is right! */
+ txDescCnt -= fragLen;
+ txFifoCnt += fragLen;
+
+ if (txFifoCnt >= (regs.txcfg & TXCFG_DRTH_MASK)) {
+ if (txFifo.empty()) {
+ txFifoCnt -= (uint32_t) (txPacketBufPtr - packet->data);
+ } else {
+ transmit();
+ }
+ }
+
+ if (txDescCnt) { /* if there is still more data to go in this desc */
+ if (txFifoAvail >= regs.txcfg & TXCFG_FLTH_MASK) {
+ txState = txFragRead;
+ readOneFrag();
+ }
+ } else { /* this descriptor is done */
+ /* but there is more descriptors for this packet */
+ if (txDescCache.cmdsts & CMDSTS_MORE) {
+ txState = txDescWrite;
+ txDescCache.cmdsts &= ~CMDSTS_OWN;
+ writeDescPhys.addr = regs.txdp + LINK_LEN + BUFPTR_LEN;
+ writeDescPhys.length = CMDSTS_LEN;
+
+ writeDescRequest.init(&txDescDoneCB, 0, true, &writeDescPhys, 1,
+ writeDescPhys.length,
+ (uint8_t*) &txDescCache.cmdsts,
+ writeDescPhys.length, curTick);
+ } else { /* this packet is totally done */
+ /* deal with the the packet that just finished */
+ if (regs.vtcr & VTCR_PPCHK && extstsEnable) {
+ if (txDescCache.extsts & EXTSTS_UDPPKT) {
+ udpChecksum(packet, true);
+ } else if (txDescCache.extsts & EXTSTS_TCPPKT) {
+ tcpChecksum(packet, true);
+ } else if (txDescCache.extsts & EXTSTS_IPPKT) {
+ ipChecksum(packet, true);
+ }
+ }
+
+ txFifo.push_back(packet);
+ transmit();
+ txPacketFlag = false;
+ descAddrFifo.push_back(regs.txdp);
+
+ /* if there is not another descriptor ready for reading, go idle */
+ if (txDescCache.link == 0 || txHalt) {
+ txState = txIdle;
+ devIntrPost(ISR_TXIDLE);
+ txHalt = false;
+ } else { /* else go read next descriptor */
+ txState = txDescRead;
+ regs.txdp = txDescCache.link;
+ CTDD = false;
+ readOneDesc(tx);
+ }
+ }
+ }
+}
+
+void
+EtherDev::transferDone()
+{
+ if (txFifo.empty())
+ return;
+
+ DPRINTF(Ethernet, "schedule transmit\n");
+
+ if (txEvent.scheduled())
+ txEvent.reschedule(curTick + 1);
+ else
+ txEvent.schedule(curTick + 1);
+}
+
+void
+EtherDev::txDump() const
+{
+#if 0
+ int i = tx_ptr;
+ for (int loop = 0; loop < tx_ring_len; loop++) {
+ es_desc *desc = &tx_ring[i];
+
+ if (desc->addr)
+ cprintf("desc[%d]: addr=%#x, len=%d, flags=%#x\n",
+ i, desc->addr, desc->length, desc->flags);
+
+ if (++i >= tx_ring_len)
+ i = 0;
+ }
+#endif
+}
+
+void
+EtherDev::rxDump() const
+{
+#if 0
+ int i = rx_ptr;
+ for (int loop = 0; loop < rx_ring_len; loop++) {
+ es_desc *desc = &rx_ring[i];
+
+ if (desc->addr)
+ cprintf("desc[%d]: addr=%#x, len=%d, flags=%#x\n",
+ i, desc->addr, desc->length, desc->flags);
+
+ if (++i >= rx_ring_len)
+ i = 0;
+ }
+#endif
+}
+
+bool
+EtherDev::rxFilter(PacketPtr packet)
+{
+ bool drop = true;
+ string type;
+
+ if (packet->IsUnicast()) {
+ type = "unicast";
+
+ // If we're accepting all unicast addresses
+ if (acceptUnicast)
+ drop = false;
+
+ // If we make a perfect match
+ if ((acceptPerfect)
+ && (memcmp(regs.perfectMatch, packet->data, sizeof(regs.perfectMatch)) == 0))
+ drop = false;
+
+ eth_header *eth = (eth_header *) packet->data;
+ if ((acceptArp) && (eth->type == 0x806))
+ drop = false;
+
+ } else if (packet->IsBroadcast()) {
+ type = "broadcast";
+
+ // if we're accepting broadcasts
+ if (acceptBroadcast)
+ drop = false;
+
+ } else if (packet->IsMulticast()) {
+ type = "multicast";
+
+ // if we're accepting all multicasts
+ if (acceptMulticast)
+ drop = false;
+
+ } else {
+ type = "unknown";
+
+ // oh well, punt on this one
+ }
+
+ if (drop) {
+ DPRINTF(Ethernet, "rxFilter drop\n");
+ DDUMP(EthernetData, packet->data, packet->length);
+ }
+
+ return drop;
+}
+
+bool
+EtherDev::recvPacket(PacketPtr packet)
+{
+ rxBytes += packet->length;
+ rxPackets++;
+
+ if (rxState == rxIdle) {
+ DPRINTF(Ethernet, "receive disabled...packet dropped\n");
+ interface->recvDone();
+ return true;
+ }
+
+ if (rxFilterEnable && rxFilter(packet)) {
+ DPRINTF(Ethernet, "packet filtered...dropped\n");
+ interface->recvDone();
+ return true;
+ }
+
+ if (rxFifoCnt + packet->length >= MAX_RX_FIFO_SIZE) {
+ DPRINTF(Ethernet,
+ "packet will not fit in receive buffer...packet dropped\n");
+ devIntrPost(ISR_RXORN);
+ return false;
+ }
+
+ rxFifo.push_back(packet);
+ rxPktBytes = packet->length;
+ rxFifoCnt += packet->length;
+ interface->recvDone();
+
+ return true;
+}
+
+bool
+EtherDev::udpChecksum(PacketPtr packet, bool gen)
+{
+ udp_header *hdr = (udp_header *) packet->getTransportHdr();
+
+ ip_header *ip = packet->getIpHdr();
+
+ pseudo_header *pseudo = new pseudo_header;
+
+ pseudo->src_ip_addr = ip->src_ip_addr;
+ pseudo->dest_ip_addr = ip->dest_ip_addr;
+ pseudo->protocol = ip->protocol;
+ pseudo->len = hdr->len;
+
+ uint16_t cksum = checksumCalc((uint16_t *) pseudo, (uint16_t *) hdr,
+ (uint32_t) hdr->len);
+
+ delete pseudo;
+ if (gen)
+ hdr->chksum = cksum;
+ else
+ if (cksum != 0)
+ return false;
+
+ return true;
+}
+
+bool
+EtherDev::tcpChecksum(PacketPtr packet, bool gen)
+{
+ tcp_header *hdr = (tcp_header *) packet->getTransportHdr();
+
+ ip_header *ip = packet->getIpHdr();
+
+ pseudo_header *pseudo = new pseudo_header;
+
+ pseudo->src_ip_addr = ip->src_ip_addr;
+ pseudo->dest_ip_addr = ip->dest_ip_addr;
+ pseudo->protocol = ip->protocol;
+ pseudo->len = ip->dgram_len - (ip->vers_len & 0xf);
+
+ uint16_t cksum = checksumCalc((uint16_t *) pseudo, (uint16_t *) hdr,
+ (uint32_t) pseudo->len);
+
+ delete pseudo;
+ if (gen)
+ hdr->chksum = cksum;
+ else
+ if (cksum != 0)
+ return false;
+
+ return true;
+}
+
+bool
+EtherDev::ipChecksum(PacketPtr packet, bool gen)
+{
+ ip_header *hdr = packet->getIpHdr();
+
+ uint16_t cksum = checksumCalc(NULL, (uint16_t *) hdr, (hdr->vers_len & 0xf));
+
+ if (gen)
+ hdr->hdr_chksum = cksum;
+ else
+ if (cksum != 0)
+ return false;
+
+ return true;
+}
+
+uint16_t
+EtherDev::checksumCalc(uint16_t *pseudo, uint16_t *buf, uint32_t len)
+{
+ uint32_t sum = 0;
+
+ uint16_t last_pad = 0;
+ if (len & 1) {
+ last_pad = buf[len/2] & 0xff;
+ len--;
+ sum += last_pad;
+ }
+
+ if (pseudo) {
+ sum = pseudo[0] + pseudo[1] + pseudo[2] +
+ pseudo[3] + pseudo[4] + pseudo[5];
+ }
+
+ for (int i=0; i < (len/2); ++i) {
+ sum += buf[i];
+ }
+
+ while (sum >> 16)
+ sum = (sum >> 16) + (sum & 0xffff);
+
+ return ~sum;
+}
+
+//=====================================================================
+//
+//
+void
+dp_regs::serialize(ostream &os)
+{
+ SERIALIZE_SCALAR(command);
+ SERIALIZE_SCALAR(config);
+ SERIALIZE_SCALAR(isr);
+ SERIALIZE_SCALAR(imr);
+}
+
+void
+dp_regs::unserialize(Checkpoint *cp, const std::string &section)
+{
+ UNSERIALIZE_SCALAR(command);
+ UNSERIALIZE_SCALAR(config);
+ UNSERIALIZE_SCALAR(isr);
+ UNSERIALIZE_SCALAR(imr);
+#if 0
+ UNSERIALIZE_SCALAR(tx_ring);
+ UNSERIALIZE_SCALAR(rx_ring);
+ UNSERIALIZE_SCALAR(tx_ring_len);
+ UNSERIALIZE_SCALAR(rx_ring_len);
+ UNSERIALIZE_SCALAR(rom_addr);
+ UNSERIALIZE_SCALAR(rom_data);
+ UNSERIALIZE_SCALAR(rxfilt_ctl);
+ UNSERIALIZE_SCALAR(rxfilt_data);
+
+ UNSERIALIZE_ARRAY(perfect,EADDR_LEN);
+ UNSERIALIZE_ARRAY(hash_table,ES_HASH_SIZE);
+
+ UNSERIALIZE_SCALAR(tx_ring_ptr);
+ UNSERIALIZE_SCALAR(rx_ring_ptr);
+#endif
+}
+
+//---------------------------------------
+
+void
+EtherPacket::serialize(ostream &os)
+{
+ SERIALIZE_SCALAR(length);
+ SERIALIZE_ARRAY(data, length);
+}
+
+void
+EtherPacket::unserialize(Checkpoint *cp, const std::string &section)
+{
+ UNSERIALIZE_SCALAR(length);
+ data = new uint8_t[length];
+ UNSERIALIZE_ARRAY(data, length);
+}
+
+//---------------------------------------
+
+void
+EtherDev::serialize(ostream &os)
+{
+
+#if 0
+ regs.serialize(os);
+
+ // tx_ring & rx_ring are contained in the physmem...
+ SERIALIZE_SCALAR(cpuPendingIntr);
+ SERIALIZE_SCALAR(tx_ptr);
+ SERIALIZE_SCALAR(rx_ptr);
+
+ SERIALIZE_SCALAR(rxDoneCB.ptr);
+ SERIALIZE_SCALAR(rxDoneCB.ignore);
+
+ SERIALIZE_SCALAR(txDoneCB.ptr);
+ SERIALIZE_SCALAR(txDoneCB.ignore);
+
+ for (int i=0; i<ES_MAX_DMA_SEGS; ++i) {
+ paramOut(os, csprintf("readPhys%d.addr",i), readPhys[i].addr);
+ paramOut(os, csprintf("readPhys%d.length",i), readPhys[i].length);
+ paramOut(os, csprintf("writePhys%d.addr",i), writePhys[i].addr);
+ paramOut(os, csprintf("writePhys%d.length",i), writePhys[i].length);
+ }
+
+ SERIALIZE_SCALAR(txEnable);
+ SERIALIZE_SCALAR(rxEnable);
+ SERIALIZE_SCALAR(txDelay);
+ SERIALIZE_SCALAR(rxDelay);
+
+ SERIALIZE_SCALAR(txbuf_len);
+
+ //Calculate the number here, actually dump them at end
+ int numTxPkts=0;
+ for (pktiter_t p=txbuf.begin(); p!=txbuf.end(); ++p) {
+ numTxPkts++;
+ }
+ SERIALIZE_SCALAR(numTxPkts);
+
+ SERIALIZE_SCALAR(rxbuf_len);
+ int numRxPkts=0;
+ for (pktiter_t p=rxbuf.begin(); p!=rxbuf.end(); ++p) {
+ numRxPkts++;
+ }
+ SERIALIZE_SCALAR(numRxPkts);
+
+ // output whether the tx and rx packets exist
+ bool txPacketExists = false;
+ if (txDoneCB.packet)
+ txPacketExists = true;
+ SERIALIZE_SCALAR(txPacketExists);
+
+ bool rxPacketExists = false;
+ if (rxPacket)
+ rxPacketExists = true;
+ SERIALIZE_SCALAR(rxPacketExists);
+
+ // output the names (unique by pointer) of the read and write requests
+ paramOut(os, csprintf("readReqName"), readRequest.name());
+ paramOut(os, csprintf("writeReqName"), writeRequest.name());
+
+ // Serialize txPacket, because its data is needed for readRequest
+ if (txPacketExists) {
+ nameOut(os, csprintf("%s.txPacket", name()));
+ txDoneCB.packet->serialize(os);
+ }
+
+ // Serialize rxPacket, because its data is needed for writeRequest
+ if (rxPacketExists) {
+ nameOut(os, csprintf("%s.rxPacket", name()));
+ rxPacket->serialize(os);
+ }
+
+ // create a section for the readRequest
+ nameOut(os, readRequest.name());
+ paramOut(os, csprintf("parent"), name());
+ paramOut(os, csprintf("id"), 0);
+ readRequest.serialize(os);
+
+ // create a section for the writeRequest
+ nameOut(os, writeRequest.name());
+ paramOut(os, csprintf("parent"), name());
+ paramOut(os, csprintf("id"), 1);
+ writeRequest.serialize(os);
+
+ //Redo the buffers, this time outputing them to the file
+ numTxPkts = 0;
+ for (pktiter_t p=txbuf.begin(); p!=txbuf.end(); ++p) {
+ nameOut(os, csprintf("%s.txbuf%d", name(),numTxPkts++));
+ (*p)->serialize(os);
+ }
+
+ numRxPkts = 0;
+ for (pktiter_t p=rxbuf.begin(); p!=rxbuf.end(); ++p) {
+ nameOut(os, csprintf("%s.rxbuf%d", name(),numRxPkts++));
+ (*p)->serialize(os);
+ }
+#endif
+}
+
+void
+EtherDev::unserialize(Checkpoint *cp, const std::string &section)
+{
+#if 0
+ regs.unserialize(cp, section);
+
+ UNSERIALIZE_SCALAR(cpuPendingIntr);
+
+ // initialize the tx_ring
+ txReset();
+
+ // initialize the rx_ring
+ rxReset();
+
+ UNSERIALIZE_SCALAR(tx_ptr);
+ UNSERIALIZE_SCALAR(rx_ptr);
+
+ PacketPtr p;
+ UNSERIALIZE_SCALAR(txbuf_len);
+ int numTxPkts;
+ UNSERIALIZE_SCALAR(numTxPkts);
+ for (int i=0; i<numTxPkts; ++i) {
+ p = new EtherPacket;
+ p->unserialize(cp, csprintf("%s.txbuf%d", section, i));
+ txbuf.push_back(p);
+ }
+
+ UNSERIALIZE_SCALAR(rxbuf_len);
+ int numRxPkts;
+ UNSERIALIZE_SCALAR(numRxPkts);
+ for (int i=0; i<numRxPkts; ++i) {
+ p = new EtherPacket;
+ p->unserialize(cp, csprintf("%s.rxbuf%d", section, i));
+ rxbuf.push_back(p);
+ }
+
+ UNSERIALIZE_SCALAR(rxDoneCB.ptr);
+ UNSERIALIZE_SCALAR(rxDoneCB.ignore);
+
+ UNSERIALIZE_SCALAR(txDoneCB.ptr);
+ UNSERIALIZE_SCALAR(txDoneCB.ignore);
+
+ for (int i=0; i<ES_MAX_DMA_SEGS; ++i) {
+ paramIn(cp, section, csprintf("readPhys%d.addr",i),
+ readPhys[i].addr);
+ paramIn(cp, section, csprintf("readPhys%d.length",i),
+ readPhys[i].length);
+ paramIn(cp, section, csprintf("writePhys%d.addr",i),
+ writePhys[i].addr);
+ paramIn(cp, section, csprintf("writePhys%d.length",i),
+ writePhys[i].length);
+ }
+
+ UNSERIALIZE_SCALAR(txEnable);
+ UNSERIALIZE_SCALAR(rxEnable);
+ UNSERIALIZE_SCALAR(txDelay);
+ UNSERIALIZE_SCALAR(rxDelay);
+
+ // Unserialize the current txPacket
+ bool txPacketExists;
+ UNSERIALIZE_SCALAR(txPacketExists);
+
+ txDoneCB.packet = NULL;
+ if (txPacketExists) {
+ txDoneCB.packet = new EtherPacket;
+ txDoneCB.packet->unserialize(cp, csprintf("%s.txPacket", section));
+ }
+
+ // Unserialize the current rxPacket
+ bool rxPacketExists;
+ UNSERIALIZE_SCALAR(rxPacketExists);
+
+ rxPacket = NULL;
+ if (rxPacketExists) {
+ rxPacket = new EtherPacket;
+ rxPacket->unserialize(cp, csprintf("%s.rxPacket", section));
+ }
+
+ std::string readReqName, writeReqName;
+ UNSERIALIZE_SCALAR(readReqName);
+ UNSERIALIZE_SCALAR(writeReqName);
+
+ // Unserialize and fixup the readRequest
+ readRequest.unserialize(cp, readReqName);
+ readRequest.phys = readPhys;
+ readRequest.bufferCB = 0;
+ readRequest.dmaDoneCB = &txDoneCB;
+ readRequest.data = NULL;
+
+ if (txDoneCB.packet)
+ readRequest.data = txDoneCB.packet->data;
+
+ // Unserialize and fixup the writeRequest
+ writeRequest.unserialize(cp, writeReqName);
+ writeRequest.phys = writePhys;
+ writeRequest.bufferCB = 0;
+ writeRequest.dmaDoneCB = &rxDoneCB;
+ writeRequest.data = NULL;
+
+ if (rxPacket)
+ writeRequest.data = rxPacket->data;
+#endif
+}
+
+
+//=====================================================================
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(EtherDevInt)
+
+ SimObjectParam<EtherInt *> peer;
+ SimObjectParam<EtherDev *> device;
+
+END_DECLARE_SIM_OBJECT_PARAMS(EtherDevInt)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(EtherDevInt)
+
+ INIT_PARAM_DFLT(peer, "peer interface", NULL),
+ INIT_PARAM(device, "Ethernet device of this interface")
+
+END_INIT_SIM_OBJECT_PARAMS(EtherDevInt)
+
+CREATE_SIM_OBJECT(EtherDevInt)
+{
+ EtherDevInt *dev_int = new EtherDevInt(getInstanceName(), device);
+
+ EtherInt *p = (EtherInt *)peer;
+ if (p) {
+ dev_int->setPeer(p);
+ p->setPeer(dev_int);
+ }
+
+ return dev_int;
+}
+
+REGISTER_SIM_OBJECT("EtherDevInt", EtherDevInt)
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(EtherDev)
+
+ Param<Tick> tx_delay;
+ Param<Tick> rx_delay;
+ SimObjectParam<DmaEngine *> engine;
+ Param<bool> use_interface;
+ SimObjectParam<IntrControl *> intr_ctrl;
+ SimObjectParam<MemoryController *> mmu;
+ SimObjectParam<PhysicalMemory *> physmem;
+ Param<Addr> addr;
+ Param<Addr> mask;
+ Param<bool> rx_filter;
+ Param<string> hardware_address;
+ SimObjectParam<PCIConfigAll *> configspace;
+ SimObjectParam<PciConfigData *> configdata;
+ SimObjectParam<Tsunami *> tsunami;
+ Param<uint32_t> pci_bus;
+ Param<uint32_t> pci_dev;
+ Param<uint32_t> pci_func;
+
+END_DECLARE_SIM_OBJECT_PARAMS(EtherDev)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(EtherDev)
+
+ INIT_PARAM_DFLT(tx_delay, "Transmit Delay", 1000),
+ INIT_PARAM_DFLT(rx_delay, "Receive Delay", 1000),
+ INIT_PARAM(engine, "DMA Engine"),
+ INIT_PARAM_DFLT(use_interface, "Use DMA Interface", true),
+ INIT_PARAM(intr_ctrl, "Interrupt Controller"),
+ INIT_PARAM(mmu, "Memory Controller"),
+ INIT_PARAM(physmem, "Physical Memory"),
+ INIT_PARAM(addr, "Device Address"),
+ INIT_PARAM(mask, "Address Mask"),
+ INIT_PARAM_DFLT(rx_filter, "Enable Receive Filter", true),
+ INIT_PARAM_DFLT(hardware_address, "Ethernet Hardware Address",
+ "00:99:00:00:00:01"),
+ INIT_PARAM(configspace, "PCI Configspace"),
+ INIT_PARAM(configdata, "PCI Config data"),
+ INIT_PARAM(tsunami, "Tsunami"),
+ INIT_PARAM(pci_bus, "PCI bus"),
+ INIT_PARAM(pci_dev, "PCI device number"),
+ INIT_PARAM(pci_func, "PCI function code")
+
+END_INIT_SIM_OBJECT_PARAMS(EtherDev)
+
+
+CREATE_SIM_OBJECT(EtherDev)
+{
+ int eaddr[6];
+ sscanf(((string)hardware_address).c_str(), "%x:%x:%x:%x:%x:%x",
+ &eaddr[0], &eaddr[1], &eaddr[2], &eaddr[3], &eaddr[4], &eaddr[5]);
+
+ return new EtherDev(getInstanceName(), engine, use_interface,
+ intr_ctrl, mmu, physmem, configspace, configdata,
+ tsunami, pci_bus, pci_dev, pci_func, rx_filter, eaddr,
+ tx_delay, rx_delay, addr, mask);
+}
+
+REGISTER_SIM_OBJECT("EtherDev", EtherDev)
diff --git a/dev/ns_gige.hh b/dev/ns_gige.hh
new file mode 100644
index 000000000..eaece2551
--- /dev/null
+++ b/dev/ns_gige.hh
@@ -0,0 +1,403 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* @file
+ * Device module for modelling the National Semiconductor
+ * DP83820 ethernet controller
+ */
+
+#ifndef __NS_GIGE_HH__
+#define __NS_GIGE_HH__
+
+#include "dev/dma.hh"
+#include "dev/etherint.hh"
+#include "dev/etherpkt.hh"
+#include "sim/eventq.hh"
+#include "dev/ns_gige_reg.h"
+#include "base/statistics.hh"
+#include "dev/pcidev.hh"
+#include "dev/tsunami.hh"
+#include "dev/pciconfigall.hh"
+
+/** defined by the NS83820 data sheet */
+#define MAX_TX_FIFO_SIZE 8192
+#define MAX_RX_FIFO_SIZE 32768
+
+/** length of ethernet address in bytes */
+#define EADDR_LEN 6
+
+/** Transmit State Machine states */
+enum tx_state { txIdle, txDescRefr, txDescRead, txFifoBlock, txFragRead,
+ txDescWrite };
+
+/** Receive State Machine States */
+enum rx_state { rxIdle, rxDescRefr, rxDescRead, rxFifoBlock, rxFragWrite,
+ rxDescWrite, rxAdvance };
+
+/**
+ * Ethernet device registers
+ */
+struct dp_regs {
+ uint32_t command;
+ uint32_t config;
+ uint32_t mear;
+ uint32_t ptscr;
+ uint32_t isr;
+ uint32_t imr;
+ uint32_t ier;
+ uint32_t ihr;
+ uint32_t txdp;
+ uint32_t txdp_hi;
+ uint32_t txcfg;
+ uint32_t gpior;
+ uint32_t rxdp;
+ uint32_t rxdp_hi;
+ uint32_t rxcfg;
+ uint32_t pqcr;
+ uint32_t wcsr;
+ uint32_t pcr;
+ uint32_t rfcr;
+ uint32_t rfdr;
+ uint32_t srr;
+ uint32_t mibc;
+ uint32_t vrcr;
+ uint32_t vtcr;
+ uint32_t vdr;
+ uint32_t ccsr;
+ uint32_t tbicr;
+ uint32_t tbisr;
+ uint32_t tanar;
+ uint32_t tanlpar;
+ uint32_t taner;
+ uint32_t tesr;
+
+ /** for perfect match memory. the linux driver doesn't use any other ROM */
+ uint8_t perfectMatch[EADDR_LEN];
+
+ virtual void serialize(std::ostream &os);
+ virtual void unserialize(Checkpoint *cp, const std::string &section);
+};
+
+/** an enum indicating direction, transmit or receive, used as a param for
+ some fns */
+enum dir_t { tx, rx };
+
+class DmaEngine;
+class IntrControl;
+class EtherDevInt;
+class PhysicalMemory;
+
+/**
+ * NS DP82830 Ethernet device model
+ */
+class EtherDev : public PciDev, public DmaHolder
+{
+ private:
+ /** pointer to the chipset */
+ Tsunami *tsunami;
+
+ protected:
+ Addr addr;
+ Addr mask;
+
+ /** device register file */
+ dp_regs regs;
+
+ /*** BASIC STRUCTURES FOR TX/RX ***/
+ /* Data FIFOs */
+ typedef std::deque<PacketPtr> pktbuf_t;
+ typedef pktbuf_t::iterator pktiter_t;
+ pktbuf_t txFifo;
+ pktbuf_t rxFifo;
+
+ /** for the tx side, to track addrs to write updated cmdsts to */
+ typedef std::deque<uint32_t> txdpbuf_t; /* ASSUME32 */
+ txdpbuf_t descAddrFifo;
+
+ /** various helper vars */
+ uint32_t txPacketLen;
+ uint8_t *txPacketBufPtr;
+ uint8_t *rxPacketBufPtr;
+ uint8_t *rxDescBufPtr;
+ uint32_t fragLen;
+ uint32_t rxCopied;
+
+ /** DescCaches */
+ ns_desc txDescCache;
+ ns_desc rxDescCache;
+
+ /* tx State Machine */
+ tx_state txState;
+ /** Current Transmit Descriptor Done */
+ bool CTDD;
+ uint32_t txFifoCnt; /* amt of data in the txDataFifo in bytes (logical) */
+ uint32_t txFifoAvail; /* current amt of free space in txDataFifo in byes */
+ bool txHalt;
+ bool txPacketFlag; /* when set, indicates not working on a new packet */
+ Addr txFragPtr; /* ptr to the next byte in the current fragment */
+ uint32_t txDescCnt; /* count of bytes remaining in the current descriptor */
+
+ /** rx State Machine */
+ rx_state rxState;
+ bool CRDD; /* Current Receive Descriptor Done */
+ uint32_t rxPktBytes; /* num of bytes in the current packet being drained
+ from rxDataFifo */
+ uint32_t rxFifoCnt; /* number of bytes in the rxFifo */
+ bool rxHalt;
+ bool rxPacketFlag; /* when set, indicates not working on a new packet */
+ Addr rxFragPtr; /* ptr to the next byte in current fragment */
+ uint32_t rxDescCnt; /* count of bytes remaining in the current descriptor */
+
+ bool extstsEnable;
+ uint32_t maxTxBurst;
+ uint32_t maxRxBurst;
+
+ PhysicalMemory *physmem;
+
+ protected:
+ /**
+ * Receive dma for descriptors done callback
+ */
+ class RxDescDone : public DmaCallback
+ {
+ public:
+ EtherDev *ethernet;
+
+ public:
+ RxDescDone(EtherDev *e);
+ std::string name() const;
+ virtual void process();
+ };
+
+ /**
+ * Receive dma done callback
+ */
+ class RxDone : public DmaCallback
+ {
+ public:
+ EtherDev *ethernet;
+
+ public:
+ RxDone(EtherDev *e);
+ std::string name() const;
+ virtual void process();
+ };
+
+ /**
+ * Transmit dma for descriptors done callback
+ */
+ class TxDescDone : public DmaCallback
+ {
+ public:
+ EtherDev *ethernet;
+
+ public:
+ TxDescDone(EtherDev *e);
+ std::string name() const;
+ virtual void process();
+ };
+
+ /*
+ * Transmit dma done callback
+ */
+ class TxDone : public DmaCallback
+ {
+ public:
+ EtherDev *ethernet;
+ PacketPtr packet;
+
+ public:
+ TxDone(EtherDev *e);
+ std::string name() const;
+ virtual void process();
+ };
+
+ friend class TxDescDone;
+ friend class TxDone;
+ friend class RxDescDone;
+ friend class RxDone;
+
+ RxDescDone rxDescDoneCB;
+ RxDone rxDoneCB;
+ TxDescDone txDescDoneCB;
+ TxDone txDoneCB;
+
+ DmaEngine *dma;
+ DmaRequest readRequest;
+ DmaRequest writeRequest;
+ DmaRequest readDescRequest;
+ DmaRequest writeDescRequest;
+ PacketPtr rxPacket;
+ DmaPhys readPhys;
+ DmaPhys writePhys;
+ DmaPhys readDescPhys;
+ DmaPhys writeDescPhys;
+
+ EtherDevInt *interface;
+
+ protected:
+ IntrControl *intctrl;
+ Tick txDelay;
+ Tick rxDelay;
+
+ void txReset();
+ void rxReset();
+ void regsReset() {
+ memset(&regs, 0, sizeof(regs));
+ regs.mear = 0x12;
+ regs.isr = 0x00608000;
+ regs.txcfg = 0x120;
+ regs.rxcfg = 0x4;
+ regs.srr = 0x0103;
+ regs.mibc = 0x2;
+ regs.vdr = 0x81;
+ regs.tesr = 0xc000;
+ }
+
+ void txKick();
+ void rxKick();
+
+ /*
+ * Retransmit event
+ */
+ class TxEvent : public Event
+ {
+ protected:
+ EtherDev *dev;
+
+ public:
+ TxEvent(EtherDev *_dev)
+ : Event(&mainEventQueue), dev(_dev) {}
+ void process() { dev->transmit(); }
+ virtual const char *description() { return "retransmit"; }
+ };
+ friend class TxEvent;
+ TxEvent txEvent;
+ void transmit();
+
+
+ void txDescDone();
+ void rxDescDone();
+ void txDone(PacketPtr packet);
+ void rxDone();
+
+ void txDump() const;
+ void rxDump() const;
+
+ void devIntrPost(uint32_t interrupts);
+ void devIntrClear(uint32_t interrupts);
+ void devIntrChangeMask();
+
+ bool cpuPendingIntr;
+ void cpuIntrPost();
+ void cpuIntrClear();
+
+ bool rxFilterEnable;
+ bool rxFilter(PacketPtr packet);
+ bool acceptBroadcast;
+ bool acceptMulticast;
+ bool acceptUnicast;
+ bool acceptPerfect;
+ bool acceptArp;
+
+ bool udpChecksum(PacketPtr packet, bool gen);
+ bool tcpChecksum(PacketPtr packet, bool gen);
+ bool ipChecksum(PacketPtr packet, bool gen);
+ uint16_t checksumCalc(uint16_t *pseudo, uint16_t *buf, uint32_t len);
+
+ public:
+ EtherDev(const std::string &name, DmaEngine *de, bool use_interface,
+ IntrControl *i, MemoryController *mmu, PhysicalMemory *pmem,
+ PCIConfigAll *cf, PciConfigData *cd, Tsunami *t, uint32_t bus,
+ uint32_t dev, uint32_t func, bool rx_filter, const int eaddr[6],
+ Tick tx_delay, Tick rx_delay, Addr addr, Addr mask);
+ ~EtherDev();
+
+ virtual void WriteConfig(int offset, int size, uint32_t data);
+ virtual void ReadConfig(int offset, int size, uint8_t *data);
+
+
+
+ Fault read(MemReqPtr req, uint8_t *data);
+ Fault write(MemReqPtr req, const uint8_t *data);
+
+ bool cpuIntrPending() const;
+ void cpuIntrAck() { cpuIntrClear(); }
+
+ bool recvPacket(PacketPtr packet);
+ void transferDone();
+
+ void setInterface(EtherDevInt *i) { assert(!interface); interface = i; }
+
+ virtual void serialize(std::ostream &os);
+ virtual void unserialize(Checkpoint *cp, const std::string &section);
+
+ virtual DmaRequest *find_dmareq(uint32_t &id) {
+ if (id == 0)
+ return(&readRequest);
+ else if (id == 1)
+ return(&writeRequest);
+ else
+ return(NULL);
+ }
+
+ public:
+ void regStats();
+
+ private:
+ Statistics::Scalar<> txBytes;
+ Statistics::Scalar<> rxBytes;
+ Statistics::Scalar<> txPackets;
+ Statistics::Scalar<> rxPackets;
+ Statistics::Formula txBandwidth;
+ Statistics::Formula rxBandwidth;
+ Statistics::Formula txPacketRate;
+ Statistics::Formula rxPacketRate;
+
+ void readOneDesc(dir_t dir, uint32_t len = sizeof(ns_desc));
+ void readOneFrag();
+ void writeOneFrag();
+};
+
+/*
+ * Ethernet Interface for an Ethernet Device
+ */
+class EtherDevInt : public EtherInt
+{
+ private:
+ EtherDev *dev;
+
+ public:
+ EtherDevInt(const std::string &name, EtherDev *d)
+ : EtherInt(name), dev(d) { dev->setInterface(this); }
+
+ virtual bool recvPacket(PacketPtr &pkt) { return dev->recvPacket(pkt); }
+ virtual void sendDone() { dev->transferDone(); }
+};
+
+#endif // __NS_GIGE_HH__
diff --git a/dev/ns_gige_reg.h b/dev/ns_gige_reg.h
new file mode 100644
index 000000000..5b0f961c0
--- /dev/null
+++ b/dev/ns_gige_reg.h
@@ -0,0 +1,372 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Portions of code taken from: */
+
+/* ns83820.c by Benjamin LaHaise with contributions.
+ *
+ * Questions/comments/discussion to linux-ns83820@kvack.org.
+ *
+ * $Revision: 1.34.2.23 $
+ *
+ * Copyright 2001 Benjamin LaHaise.
+ * Copyright 2001, 2002 Red Hat.
+ *
+ * Mmmm, chocolate vanilla mocha...
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+
+
+
+/* @file
+ * Ethernet device register definitions for the National
+ * Semiconductor DP83820 Ethernet controller
+ */
+
+#ifndef _NS_GIGE_H
+#define _NS_GIGE_H_
+
+/*
+ * Configuration Register Map
+ */
+#define NS_ID 0x00 /* identification register */
+#define NS_CS 0x04 /* command and status register */
+#define NS_RID 0x08 /* revision ID register */
+#define NS_LAT 0x0C /* latency timer register */
+#define NS_IOA 0x10 /* IO base address register */
+#define NS_MA 0x14 /* memory address register */
+#define NS_MA1 0x18 /* memory address high dword register */
+#define NS_SID 0x2C /* subsystem identification register */
+#define NS_ROM 0x30 /* boot ROM configuration register */
+#define NS_CAPPTR 0x34 /* number of tx descriptors */
+#define NS_INT 0x3C /* interrupt select register */
+#define NS_PMCAP 0x40 /* power mgmt capabilities register */
+#define NS_PMCS 0x44 /* power mgmt control and status
+ register */
+/* Operational Register Map */
+#define CR 0x00
+#define CFG 0x04
+#define MEAR 0x08
+#define PTSCR 0x0c
+#define ISR 0x10
+#define IMR 0x14
+#define IER 0x18
+#define IHR 0x1c
+#define TXDP 0x20
+#define TXDP_HI 0x24
+#define TXCFG 0x28
+#define GPIOR 0x2c
+#define RXDP 0x30
+#define RXDP_HI 0x34
+#define RXCFG 0x38
+#define PQCR 0x3c
+#define WCSR 0x40
+#define PCR 0x44
+#define RFCR 0x48
+#define RFDR 0x4c
+#define BRAR 0x50
+#define BRDR 0x54
+#define SRR 0x58
+#define MIBC 0x5c
+#define VRCR 0xbc
+#define VTCR 0xc0
+#define VDR 0xc4
+#define CCSR 0xcc
+#define TBICR 0xe0
+#define TBISR 0xe4
+#define TANAR 0xe8
+#define TANLPAR 0xec
+#define TANER 0xf0
+#define TESR 0xf4
+#define LAST 0xf4
+#define RESERVED 0xfc
+
+/* chip command register */
+#define CR_TXE 0x00000001
+#define CR_TXD 0x00000002
+#define CR_RXE 0x00000004
+#define CR_RXD 0x00000008
+#define CR_TXR 0x00000010
+#define CR_RXR 0x00000020
+#define CR_SWI 0x00000080
+#define CR_RST 0x00000100
+
+/* configuration register */
+#define CFG_LNKSTS 0x80000000
+#define CFG_SPDSTS 0x60000000
+#define CFG_SPDSTS1 0x40000000
+#define CFG_SPDSTS0 0x20000000
+#define CFG_DUPSTS 0x10000000
+#define CFG_TBI_EN 0x01000000
+#define CFG_RESERVED 0x0e000000
+#define CFG_MODE_1000 0x00400000
+#define CFG_AUTO_1000 0x00200000
+#define CFG_PINT_CTL 0x001c0000
+#define CFG_PINT_DUPSTS 0x00100000
+#define CFG_PINT_LNKSTS 0x00080000
+#define CFG_PINT_SPDSTS 0x00040000
+#define CFG_TMRTEST 0x00020000
+#define CFG_MRM_DIS 0x00010000
+#define CFG_MWI_DIS 0x00008000
+#define CFG_T64ADDR 0x00004000
+#define CFG_PCI64_DET 0x00002000
+#define CFG_DATA64_EN 0x00001000
+#define CFG_M64ADDR 0x00000800
+#define CFG_PHY_RST 0x00000400
+#define CFG_PHY_DIS 0x00000200
+#define CFG_EXTSTS_EN 0x00000100
+#define CFG_REQALG 0x00000080
+#define CFG_SB 0x00000040
+#define CFG_POW 0x00000020
+#define CFG_EXD 0x00000010
+#define CFG_PESEL 0x00000008
+#define CFG_BROM_DIS 0x00000004
+#define CFG_EXT_125 0x00000002
+#define CFG_BEM 0x00000001
+
+/* EEPROM access register */
+#define MEAR_EEDI 0x00000001
+#define MEAR_EEDO 0x00000002
+#define MEAR_EECLK 0x00000004
+#define MEAR_EESEL 0x00000008
+#define MEAR_MDIO 0x00000010
+#define MEAR_MDDIR 0x00000020
+#define MEAR_MDC 0x00000040
+
+/* PCI test control register */
+#define PTSCR_EEBIST_FAIL 0x00000001
+#define PTSCR_EEBIST_EN 0x00000002
+#define PTSCR_EELOAD_EN 0x00000004
+#define PTSCR_RBIST_FAIL 0x000001b8
+#define PTSCR_RBIST_DONE 0x00000200
+#define PTSCR_RBIST_EN 0x00000400
+#define PTSCR_RBIST_RST 0x00002000
+
+/* interrupt status register */
+#define ISR_RESERVE 0x80000000
+#define ISR_TXDESC3 0x40000000
+#define ISR_TXDESC2 0x20000000
+#define ISR_TXDESC1 0x10000000
+#define ISR_TXDESC0 0x08000000
+#define ISR_RXDESC3 0x04000000
+#define ISR_RXDESC2 0x02000000
+#define ISR_RXDESC1 0x01000000
+#define ISR_RXDESC0 0x00800000
+#define ISR_TXRCMP 0x00400000
+#define ISR_RXRCMP 0x00200000
+#define ISR_DPERR 0x00100000
+#define ISR_SSERR 0x00080000
+#define ISR_RMABT 0x00040000
+#define ISR_RTABT 0x00020000
+#define ISR_RXSOVR 0x00010000
+#define ISR_HIBINT 0x00008000
+#define ISR_PHY 0x00004000
+#define ISR_PME 0x00002000
+#define ISR_SWI 0x00001000
+#define ISR_MIB 0x00000800
+#define ISR_TXURN 0x00000400
+#define ISR_TXIDLE 0x00000200
+#define ISR_TXERR 0x00000100
+#define ISR_TXDESC 0x00000080
+#define ISR_TXOK 0x00000040
+#define ISR_RXORN 0x00000020
+#define ISR_RXIDLE 0x00000010
+#define ISR_RXEARLY 0x00000008
+#define ISR_RXERR 0x00000004
+#define ISR_RXDESC 0x00000002
+#define ISR_RXOK 0x00000001
+
+/* transmit configuration register */
+#define TXCFG_CSI 0x80000000
+#define TXCFG_HBI 0x40000000
+#define TXCFG_MLB 0x20000000
+#define TXCFG_ATP 0x10000000
+#define TXCFG_ECRETRY 0x00800000
+#define TXCFG_BRST_DIS 0x00080000
+#define TXCFG_MXDMA1024 0x00000000
+#define TXCFG_MXDMA512 0x00700000
+#define TXCFG_MXDMA256 0x00600000
+#define TXCFG_MXDMA128 0x00500000
+#define TXCFG_MXDMA64 0x00400000
+#define TXCFG_MXDMA32 0x00300000
+#define TXCFG_MXDMA16 0x00200000
+#define TXCFG_MXDMA8 0x00100000
+
+#define TXCFG_FLTH_MASK 0x0000ff00
+#define TXCFG_DRTH_MASK 0x000000ff
+
+/*general purpose I/O control register */
+#define GPIOR_GP5_OE 0x00000200
+#define GPIOR_GP4_OE 0x00000100
+#define GPIOR_GP3_OE 0x00000080
+#define GPIOR_GP2_OE 0x00000040
+#define GPIOR_GP1_OE 0x00000020
+#define GPIOR_GP3_OUT 0x00000004
+#define GPIOR_GP1_OUT 0x00000001
+
+/* receive configuration register */
+#define RXCFG_AEP 0x80000000
+#define RXCFG_ARP 0x40000000
+#define RXCFG_STRIPCRC 0x20000000
+#define RXCFG_RX_FD 0x10000000
+#define RXCFG_ALP 0x08000000
+#define RXCFG_AIRL 0x04000000
+#define RXCFG_MXDMA512 0x00700000
+#define RXCFG_DRTH 0x0000003e
+#define RXCFG_DRTH0 0x00000002
+
+/* pause control status register */
+#define PCR_PSEN (1 << 31)
+#define PCR_PS_MCAST (1 << 30)
+#define PCR_PS_DA (1 << 29)
+#define PCR_STHI_8 (3 << 23)
+#define PCR_STLO_4 (1 << 23)
+#define PCR_FFHI_8K (3 << 21)
+#define PCR_FFLO_4K (1 << 21)
+#define PCR_PAUSE_CNT 0xFFFE
+
+/*receive filter/match control register */
+#define RFCR_RFEN 0x80000000
+#define RFCR_AAB 0x40000000
+#define RFCR_AAM 0x20000000
+#define RFCR_AAU 0x10000000
+#define RFCR_APM 0x08000000
+#define RFCR_APAT 0x07800000
+#define RFCR_APAT3 0x04000000
+#define RFCR_APAT2 0x02000000
+#define RFCR_APAT1 0x01000000
+#define RFCR_APAT0 0x00800000
+#define RFCR_AARP 0x00400000
+#define RFCR_MHEN 0x00200000
+#define RFCR_UHEN 0x00100000
+#define RFCR_ULM 0x00080000
+#define RFCR_RFADDR 0x000003ff
+
+/* receive filter/match data register */
+#define RFDR_BMASK 0x00030000
+#define RFDR_RFDATA0 0x000000ff
+#define RFDR_RFDATA1 0x0000ff00
+
+/* management information base control register */
+#define MIBC_MIBS 0x00000008
+#define MIBC_ACLR 0x00000004
+#define MIBC_FRZ 0x00000002
+#define MIBC_WRN 0x00000001
+
+/* VLAN/IP receive control register */
+#define VRCR_RUDPE 0x00000080
+#define VRCR_RTCPE 0x00000040
+#define VRCR_RIPE 0x00000020
+#define VRCR_IPEN 0x00000010
+#define VRCR_DUTF 0x00000008
+#define VRCR_DVTF 0x00000004
+#define VRCR_VTREN 0x00000002
+#define VRCR_VTDEN 0x00000001
+
+/* VLAN/IP transmit control register */
+#define VTCR_PPCHK 0x00000008
+#define VTCR_GCHK 0x00000004
+#define VTCR_VPPTI 0x00000002
+#define VTCR_VGTI 0x00000001
+
+/* Clockrun Control/Status Register */
+#define CCSR_CLKRUN_EN 0x00000001
+
+/* TBI control register */
+#define TBICR_MR_LOOPBACK 0x00004000
+#define TBICR_MR_AN_ENABLE 0x00001000
+#define TBICR_MR_RESTART_AN 0x00000200
+
+/* TBI status register */
+#define TBISR_MR_LINK_STATUS 0x00000020
+#define TBISR_MR_AN_COMPLETE 0x00000004
+
+/* TBI auto-negotiation advertisement register */
+#define TANAR_PS2 0x00000100
+#define TANAR_PS1 0x00000080
+#define TANAR_HALF_DUP 0x00000040
+#define TANAR_FULL_DUP 0x00000020
+
+/*
+ * descriptor format currently assuming link and bufptr
+ * are set for 32 bits,( may be wrong ) ASSUME32
+ */
+struct ns_desc {
+ uint32_t link; /* link field to next descriptor in linked list */
+ uint32_t bufptr; /* pointer to the first fragment or buffer */
+ uint32_t cmdsts; /* command/status field */
+ uint32_t extsts; /* extended status field for VLAN and IP info */
+};
+
+/* ASSUME32 in bytes, how big the desc fields are */
+#define LINK_LEN 4
+#define BUFPTR_LEN 4
+#define CMDSTS_LEN 4
+#define EXTSTS_LEN 4
+
+/* cmdsts flags for descriptors */
+#define CMDSTS_OWN 0x80000000
+#define CMDSTS_MORE 0x40000000
+#define CMDSTS_INTR 0x20000000
+#define CMDSTS_ERR 0x10000000
+#define CMDSTS_OK 0x08000000
+#define CMDSTS_LEN_MASK 0x0000ffff
+
+#define CMDSTS_DEST_MASK 0x01800000
+#define CMDSTS_DEST_SELF 0x00800000
+#define CMDSTS_DEST_MULTI 0x01000000
+
+/* extended flags for descriptors */
+#define EXTSTS_UDPERR 0x00400000
+#define EXTSTS_UDPPKT 0x00200000
+#define EXTSTS_TCPERR 0x00100000
+#define EXTSTS_TCPPKT 0x00080000
+#define EXTSTS_IPERR 0x00040000
+#define EXTSTS_IPPKT 0x00020000
+
+
+/* speed status */
+#define SPDSTS_POLARITY (CFG_SPDSTS1 | CFG_SPDSTS0 | CFG_DUPSTS | (lnksts ? CFG_LNKSTS : 0))
+
+#endif /* _NS_GIGE_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 23:47:31 +0000