Date: Sat, 11 Jul 2015 12:27:54 +0300 From: Alex Teaca <ionutalex.teaca@gmail.com> To: soc-status@freebsd.org Cc: Gavin Atkinson <gavin@freebsd.org> Subject: Re: GSOC 2015 - NE2000 emulation in bhyve Status Message-ID: <CAP0yNurX%2B7NaGw4LAOH3BXHLOse4aCunG2a8TRkbAiBSJ=o2ug@mail.gmail.com> In-Reply-To: <CAP0yNupM5qG2AR-8Rpmg6O2GOns-ecehACpifQmvnLmiysjrSg@mail.gmail.com> References: <CAP0yNuosFai3TXthROnrHt9723fR5zvxuggHDzsxYpumxiYrQw@mail.gmail.com> <CAP0yNupwSYPMnSiC0U897JRuCgLSnmYLOoHsr9WTJg6mv34syw@mail.gmail.com> <CAP0yNupM5qG2AR-8Rpmg6O2GOns-ecehACpifQmvnLmiysjrSg@mail.gmail.com>
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Hi, I've implemented the reception protocol of the NE2000 nic card. In order to test it, I send in both directions (from guest to host and from host to guest) big files (about 350M) and it works without any problems. At the moment, I want to implement a mechanism to lock the access on the shared resources between the tx and rx flows. Thanks, Alex On Sun, Jun 28, 2015 at 7:16 PM, Alex Teaca <ionutalex.teaca@gmail.com> wrote: > Hi, > > From the last status report: > > implement 2 commits: > - parse the input string parameter and get the tap name and mac address > from it > - implement some logging and asserts related with the receive buffer ring > > Also, I start to think about the receive protocol which is the next step > of the implementation by reading the specification from the datasheet > and understanding the implementation of the ED driver regarding the way it > receives packets from the NE2000 memory. It is pretty clear > what we need to implement and after a short design I will be able to > implement. > > Thanks, > Alex > > > On Sun, Jun 14, 2015 at 11:37 PM, Alex Teaca <ionutalex.teaca@gmail.com> > wrote: > >> Hi, >> >> At the moment I am able to configure an IP address on the network >> interface corresponding to the NE2000 NIC. When I ping >> to the host IP, the tcpdump catches both ARP Request (sent by the guest >> using the NE2000 card) and an ARP Reply >> sent by the host OS. So, there is implemented the transmission protocol. >> For reception, the packets are only read >> from the tap device when it is notified by the mevent mechanism. >> >> For mode details, see the commits. >> >> Thanks, >> Alex >> >> >> On Tue, Jun 2, 2015 at 7:45 PM, Alex Teaca <ionutalex.teaca@gmail.com> >> wrote: >> >>> Hi, >>> >>> I've started the implementation of the NE2000 module. At the moment the >>> ED driver is able to probe the emulated device (RealTek 8029) and add it as >>> a network interface. >>> >>> Some of the features which are implemented: >>> - implement some logging support >>> - clone the /usr/src/sys/dev/ed/if_edreg.h register interface from the >>> ed driver into the bhyve tree sources >>> - implement the NE2000 registers support and an API to access the NIC >>> registers (get and set by offset) >>> - design and implement the Remote DMA protocol so the ED driver can >>> store and load from the NIC's RAM memory >>> >>> Thanks, >>> Alex >>> >>> >> >
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