8e9d44477c
dev/sinic.cc:
- Size the virtualRegs array based on the configured value
- Add debugging stuff for uniquely identifying vnic usage
- Only count totally unprocessed packets when notifying via RxDone
- Add initial virtual address support
- Fix some bugs in accessing packets out of order to make sure that
busy packets are processed first
- Add fifo watermark stuff
- Make number of vnics, zero/delay copy and watermarks parameters
dev/sinic.hh:
add rxUnique and txUnique to uniquely identify tx and rx VNICs
Create a separate list of Busy VNICs since more than one might
be busy and we want to service those first
Add more watermark stuff and new parameters
dev/sinicreg.hh:
Make the number of virtual nics a read-only parameter
add bits for ZeroCopy/DelayCopy
rename Virtual to Vaddr so it's not ambiguous
Add a flag for TxData/RxData to indicate a virtual address
Report rxfifo status in RxDone
python/m5/objects/Ethernet.py:
add more options for the fifo thresholds
add number of vnics as a parameter
add copy type as a parameter
add virtual addressing as a parameter
--HG--
extra : convert_revision : 850e2433b585d65469d4c5d85ad7ca820db10f4a
220 lines
9.6 KiB
C++
220 lines
9.6 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __DEV_SINICREG_HH__
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#define __DEV_SINICREG_HH__
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#define __SINIC_REG32(NAME, VAL) static const uint32_t NAME = (VAL)
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#define __SINIC_REG64(NAME, VAL) static const uint64_t NAME = (VAL)
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#define __SINIC_VAL32(NAME, OFFSET, WIDTH) \
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static const uint32_t NAME##_width = WIDTH; \
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static const uint32_t NAME##_offset = OFFSET; \
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static const uint32_t NAME##_mask = (1 << WIDTH) - 1; \
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static const uint32_t NAME = ((1 << WIDTH) - 1) << OFFSET; \
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static inline uint32_t get_##NAME(uint32_t reg) \
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{ return (reg & NAME) >> OFFSET; } \
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static inline uint32_t set_##NAME(uint32_t reg, uint32_t val) \
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{ return (reg & ~NAME) | ((val << OFFSET) & NAME); }
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#define __SINIC_VAL64(NAME, OFFSET, WIDTH) \
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static const uint64_t NAME##_width = WIDTH; \
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static const uint64_t NAME##_offset = OFFSET; \
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static const uint64_t NAME##_mask = (ULL(1) << WIDTH) - 1; \
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static const uint64_t NAME = ((ULL(1) << WIDTH) - 1) << OFFSET; \
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static inline uint64_t get_##NAME(uint64_t reg) \
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{ return (reg & NAME) >> OFFSET; } \
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static inline uint64_t set_##NAME(uint64_t reg, uint64_t val) \
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{ return (reg & ~NAME) | ((val << OFFSET) & NAME); }
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namespace Sinic {
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namespace Regs {
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static const int VirtualShift = 8;
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static const int VirtualMask = 0xff;
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// Registers
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__SINIC_REG32(Config, 0x00); // 32: configuration register
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__SINIC_REG32(Command, 0x04); // 32: command register
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__SINIC_REG32(IntrStatus, 0x08); // 32: interrupt status
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__SINIC_REG32(IntrMask, 0x0c); // 32: interrupt mask
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__SINIC_REG32(RxMaxCopy, 0x10); // 32: max bytes per rx copy
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__SINIC_REG32(TxMaxCopy, 0x14); // 32: max bytes per tx copy
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__SINIC_REG32(RxMaxIntr, 0x18); // 32: max receives per interrupt
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__SINIC_REG32(VirtualCount, 0x1c); // 32: number of virutal NICs
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__SINIC_REG32(RxFifoSize, 0x20); // 32: rx fifo capacity in bytes
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__SINIC_REG32(TxFifoSize, 0x24); // 32: tx fifo capacity in bytes
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__SINIC_REG32(RxFifoMark, 0x28); // 32: rx fifo high watermark
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__SINIC_REG32(TxFifoMark, 0x2c); // 32: tx fifo low watermark
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__SINIC_REG32(RxData, 0x30); // 64: receive data
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__SINIC_REG32(RxDone, 0x38); // 64: receive done
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__SINIC_REG32(RxWait, 0x40); // 64: receive done (busy wait)
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__SINIC_REG32(TxData, 0x48); // 64: transmit data
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__SINIC_REG32(TxDone, 0x50); // 64: transmit done
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__SINIC_REG32(TxWait, 0x58); // 64: transmit done (busy wait)
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__SINIC_REG32(HwAddr, 0x60); // 64: mac address
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__SINIC_REG32(Size, 0x68); // register addres space size
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// Config register bits
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__SINIC_VAL32(Config_ZeroCopy, 12, 1); // enable zero copy
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__SINIC_VAL32(Config_DelayCopy,11, 1); // enable delayed copy
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__SINIC_VAL32(Config_RSS, 10, 1); // enable receive side scaling
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__SINIC_VAL32(Config_RxThread, 9, 1); // enable receive threads
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__SINIC_VAL32(Config_TxThread, 8, 1); // enable transmit thread
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__SINIC_VAL32(Config_Filter, 7, 1); // enable receive filter
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__SINIC_VAL32(Config_Vlan, 6, 1); // enable vlan tagging
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__SINIC_VAL32(Config_Vaddr, 5, 1); // enable virtual addressing
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__SINIC_VAL32(Config_Desc, 4, 1); // enable tx/rx descriptors
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__SINIC_VAL32(Config_Poll, 3, 1); // enable polling
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__SINIC_VAL32(Config_IntEn, 2, 1); // enable interrupts
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__SINIC_VAL32(Config_TxEn, 1, 1); // enable transmit
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__SINIC_VAL32(Config_RxEn, 0, 1); // enable receive
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// Command register bits
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__SINIC_VAL32(Command_Intr, 1, 1); // software interrupt
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__SINIC_VAL32(Command_Reset, 0, 1); // reset chip
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// Interrupt register bits
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__SINIC_VAL32(Intr_Soft, 8, 1); // software interrupt
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__SINIC_VAL32(Intr_TxLow, 7, 1); // tx fifo dropped below watermark
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__SINIC_VAL32(Intr_TxFull, 6, 1); // tx fifo full
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__SINIC_VAL32(Intr_TxDMA, 5, 1); // tx dma completed w/ interrupt
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__SINIC_VAL32(Intr_TxPacket, 4, 1); // packet transmitted
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__SINIC_VAL32(Intr_RxHigh, 3, 1); // rx fifo above high watermark
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__SINIC_VAL32(Intr_RxEmpty, 2, 1); // rx fifo empty
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__SINIC_VAL32(Intr_RxDMA, 1, 1); // rx dma completed w/ interrupt
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__SINIC_VAL32(Intr_RxPacket, 0, 1); // packet received
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__SINIC_REG32(Intr_All, 0x01ff); // all valid interrupts
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__SINIC_REG32(Intr_NoDelay, 0x01cc); // interrupts that aren't coalesced
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__SINIC_REG32(Intr_Res, ~0x01ff); // reserved interrupt bits
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// RX Data Description
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__SINIC_VAL64(RxData_Vaddr, 60, 1); // Addr is virtual
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__SINIC_VAL64(RxData_Len, 40, 20); // 0 - 256k
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__SINIC_VAL64(RxData_Addr, 0, 40); // Address 1TB
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// TX Data Description
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__SINIC_VAL64(TxData_More, 63, 1); // Packet not complete (will dma more)
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__SINIC_VAL64(TxData_Checksum, 62, 1); // do checksum
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__SINIC_VAL64(TxData_Vaddr, 60, 1); // Addr is virtual
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__SINIC_VAL64(TxData_Len, 40, 20); // 0 - 256k
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__SINIC_VAL64(TxData_Addr, 0, 40); // Address 1TB
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// RX Done/Busy Information
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__SINIC_VAL64(RxDone_Packets, 32, 16); // number of packets in rx fifo
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__SINIC_VAL64(RxDone_Busy, 31, 1); // receive dma busy copying
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__SINIC_VAL64(RxDone_Complete, 30, 1); // valid data (packet complete)
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__SINIC_VAL64(RxDone_More, 29, 1); // Packet has more data (dma again)
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__SINIC_VAL64(RxDone_Empty, 28, 1); // rx fifo is empty
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__SINIC_VAL64(RxDone_High, 27, 1); // rx fifo is above the watermark
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__SINIC_VAL64(RxDone_NotHigh, 26, 1); // rxfifo never hit the high watermark
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__SINIC_VAL64(RxDone_TcpError, 25, 1); // TCP packet error (bad checksum)
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__SINIC_VAL64(RxDone_UdpError, 24, 1); // UDP packet error (bad checksum)
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__SINIC_VAL64(RxDone_IpError, 23, 1); // IP packet error (bad checksum)
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__SINIC_VAL64(RxDone_TcpPacket, 22, 1); // this is a TCP packet
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__SINIC_VAL64(RxDone_UdpPacket, 21, 1); // this is a UDP packet
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__SINIC_VAL64(RxDone_IpPacket, 20, 1); // this is an IP packet
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__SINIC_VAL64(RxDone_CopyLen, 0, 20); // up to 256k
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// TX Done/Busy Information
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__SINIC_VAL64(TxDone_Packets, 32, 16); // number of packets in tx fifo
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__SINIC_VAL64(TxDone_Busy, 31, 1); // transmit dma busy copying
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__SINIC_VAL64(TxDone_Complete, 30, 1); // valid data (packet complete)
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__SINIC_VAL64(TxDone_Full, 29, 1); // tx fifo is full
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__SINIC_VAL64(TxDone_Low, 28, 1); // tx fifo is below the watermark
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__SINIC_VAL64(TxDone_Res0, 27, 1); // reserved
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__SINIC_VAL64(TxDone_Res1, 26, 1); // reserved
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__SINIC_VAL64(TxDone_Res2, 25, 1); // reserved
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__SINIC_VAL64(TxDone_Res3, 24, 1); // reserved
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__SINIC_VAL64(TxDone_Res4, 23, 1); // reserved
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__SINIC_VAL64(TxDone_Res5, 22, 1); // reserved
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__SINIC_VAL64(TxDone_Res6, 21, 1); // reserved
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__SINIC_VAL64(TxDone_Res7, 20, 1); // reserved
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__SINIC_VAL64(TxDone_CopyLen, 0, 20); // up to 256k
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struct Info
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{
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uint8_t size;
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bool read;
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bool write;
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const char *name;
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};
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/* namespace Regs */ }
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inline const Regs::Info&
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regInfo(Addr daddr)
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{
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static Regs::Info invalid = { 0, false, false, "invalid" };
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static Regs::Info info [] = {
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{ 4, true, true, "Config" },
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{ 4, false, true, "Command" },
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{ 4, true, true, "IntrStatus" },
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{ 4, true, true, "IntrMask" },
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{ 4, true, false, "RxMaxCopy" },
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{ 4, true, false, "TxMaxCopy" },
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{ 4, true, false, "RxMaxIntr" },
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{ 4, true, false, "VirtualCount" },
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{ 4, true, false, "RxFifoSize" },
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{ 4, true, false, "TxFifoSize" },
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{ 4, true, false, "RxFifoMark" },
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{ 4, true, false, "TxFifoMark" },
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{ 8, true, true, "RxData" },
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invalid,
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{ 8, true, false, "RxDone" },
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invalid,
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{ 8, true, false, "RxWait" },
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invalid,
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{ 8, true, true, "TxData" },
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invalid,
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{ 8, true, false, "TxDone" },
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invalid,
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{ 8, true, false, "TxWait" },
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invalid,
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{ 8, true, false, "HwAddr" },
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invalid,
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};
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return info[daddr / 4];
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}
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inline bool
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regValid(Addr daddr)
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{
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if (daddr > Regs::Size)
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return false;
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if (regInfo(daddr).size == 0)
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return false;
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return true;
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}
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/* namespace Sinic */ }
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#endif // __DEV_SINICREG_HH__
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