Commit graph

6 commits

Author SHA1 Message Date
Nathan Binkert
1760925f73 Improve checkpointing of ethernet packets a bit.
dev/etherpkt.cc:
    Don't try to suck in the packet if the length is zero.

--HG--
extra : convert_revision : 7212f3b677777fbce301f0613b9f513bb9fe057e
2005-05-02 18:55:39 -04:00
Nathan Binkert
8922d69953 change the serialization of a packet so that we don't
do a nameOut.  This fixes a subtle bug in serialization that
can pop up.

--HG--
extra : convert_revision : b52df977dcbef1c9bd0d4405ba0b36dff3737cdf
2004-11-13 16:46:56 -05:00
Nathan Binkert
1d02345a24 a bit more cleaning of the network header wrappers.
base/inet.hh:
    add functions to the various headers to grab the most common
    encapsulated protocols.  This could easily get out of hand, but
    we're just worrying about tcp, udp, and ip for now.

    add common functions size(), bytes(), and payload() to all wrappers.
    size() gets the header size
    bytes() returns a uint8_t * to the beginning of the header
    payload() returns a uint8_t * to the beginning of the payload.
dev/etherpkt.cc:
dev/etherpkt.hh:
    don't cache pointers to headers.  It's probably not worth the
    hassle.

--HG--
extra : convert_revision : ba9df85ac019b8a48233042dde79fb9da9546410
2004-09-21 01:41:55 -04:00
Nathan Binkert
a58b834c8e Clean up network header stuff and make it more generic. Use
libdnet when we can instead of our own home grown stuff.

SConscript:
    separate the crc code into its own file
base/inet.cc:
    move the crc stuff to crc.cc
    add generic code for calculating ip/tcp/udp checksums
base/inet.hh:
    -  move crc stuff to crc.hh
    -  #include all of the libdnet stuff.  (this makes base/inet.hh the
    only file you need to include if you want to use this kind of stuff.)
    -  Wrap some of the libdnet structs to get easier access to structure
    members.  These wrappers will automatically deal with masking/shifting/
    byte-swapping.
base/refcnt.hh:
    If one derives from RefCountingPtr, they should have access to
    the internal data pointer.
build/SConstruct:
    make #include of dnet stuff work
dev/etherlink.cc:
dev/ethertap.cc:
dev/ethertap.hh:
    EtherPacket -> PacketData
dev/etherpkt.cc:
    EtherPacket -> PacketData
    add a function for populating extra info about a packet.
    Basically just gives pointers to ethernet/ip/tcp/udp headers
    if they exist.
dev/etherpkt.hh:
    EtherPacket -> PacketData
    remove most of the packet header stuff from teh PacketData
    class and just add a few generic functions for grabbing various
    headers that may exist in the packet.  The old functionality is
    contained in the headers.
dev/ns_gige.cc:
    -  IP -> Ip, UDP -> Udp, TCP ->Tcp when used in variable names
    -  get rid of our own byte swapping functions.
    -  whack checksum code and use libdnet version.
    -  Get pointers to the various packet headers and grab info from
    those headers.  (The byte swapping in the headers now.)
    -  Add stats for Udp Checksums
dev/ns_gige.hh:
    use libdnet for checksum code.
    IP -> Ip, TCP -> Tcp in variable names
    add stats for UDP checksums

--HG--
extra : convert_revision : 96c4160e1967b7c0090acd456df4a76e1f3aab53
2004-09-20 10:43:53 -04:00
Lisa Hsu
bf8de77465 This is where I'm at for Linux Ethernet before I head to Mexico.
base/range.hh:
    andrew thought this might be a bug.
dev/etherpkt.cc:
    don't need std:: since there is a using directive
dev/ns_gige.cc:
    update to new PIO and PCI system
dev/ns_gige.hh:
    update to deal with new PIO and PCI setup
dev/ns_gige_reg.h:
    Add some new #defines that I ended up needing
dev/pcidev.cc:
    some changes to the debugging printfs of pci device

--HG--
extra : convert_revision : 955ba8e8e1c418cfe1c6549dc3451ea091541556
2004-04-21 18:23:41 -04:00
Nathan Binkert
610081079c New Ethernet device. Descriptors are now done via DMA instead
of faking it.  Renamed stuff to follow our style.  Lots of
general cleanup.

dev/etherpkt.hh:
    fix up includes

--HG--
extra : convert_revision : fb3a21466cdae00f8747d6e3027c9f2c63569c48
2004-02-21 10:43:37 -05:00