[so2] [ixia challenge]transmitere pachete
Gucea Doru
gucea.doru at gmail.com
Mon Mar 24 23:10:49 EET 2014
> Codul sursa din qemu aferent placii [1] e gresit fatal (cel putin) in ce
priveste modul simplificat de transmisie. Baietii de la MIT > aparent au
rezolvat bugul prin patch-ul lor [2].
Eu mi-am instalat qemu, versiunea de pe site-ul celor de la MIT pentru a
putea lucra cu modul simplificat de transmisie. Masina virtuala pusa astazi
la dispozitie poate lucra cu modul simplificat?
2014-03-24 9:41 GMT-07:00 Alexandru Preda <alexandru.preda91 at gmail.com>:
> Salutare,
>
> Codul sursa din qemu aferent placii [1] e gresit fatal (cel putin) in ce
> priveste modul simplificat de transmisie. Baietii de la MIT aparent au
> rezolvat bugul prin patch-ul lor [2].
>
> Ramane sa implementam obligatoriu modul flexibil sau vom avea ... patchul
> ... nevermind... Facem modul flexibil.
>
> PS: scuze pentru rich text si top posting
>
> [1] http://git.qemu.org/?p=qemu.git;a=blob;f=hw/net/eepro100.c
> [2] http://pdos.csail.mit.edu/6.828/2009/labs/lab6/qemu-0.10.6-e100.patch
>
> Alex
>
>
> 2014-03-22 19:20 GMT+02:00 Gucea Doru <gucea.doru at gmail.com>:
>
>> <daniel.baluta at gmail.com>:
>>
>>
>> > Printeaza skb->data octet cu octet si vezi daca seamana cu ce trimiti.
>>
>> Nu seaman cu ce trimit pentru ca pachetul tcpdump arata ca la [1]( deci
>> gol?) pe cand in sk->data am cate ceva in octetii aceia.
>>
>> E posibil ca adresa DMA pe care o furnizez catre CU sa fie gresita insa
>> nu ar fi trebui sa dea un kernel oops daca era incorecta, (mai ales ca am
>> alocat 100 de TCB-uri) ? Adresa dma o obtin utilizand functia
>>
>> cpu_addr = pci_pool_alloc(pool, flags, &dma_handle), pe care o scriu in scb general pointer.
>>
>>
>> Multumesc,
>> Doru
>>
>> [1] http://pastebin.com/a5a1VqBk
>>
>>
>> 2014-03-22 10:02 GMT-07:00 Gucea Doru <gucea.doru at gmail.com>:
>>
>> <daniel.baluta at gmail.com>:
>>>
>>> > 2) E buna varianta cu MAC-ul programatic, daca-l citesti inapoi e
>>> corect? Apare
>>> > MAC-ul in output-ul lui ip address show dev ixeth0?
>>>
>>> Dap, apare.
>>>
>>>
>>>
>>> 2014-03-22 9:52 GMT-07:00 Daniel Baluta <daniel.baluta at gmail.com>:
>>>
>>> 2014-03-22 18:50 GMT+02:00 Gucea Doru <gucea.doru at gmail.com>:
>>>> > 1)da, tap e in masina fizica
>>>> > 2)am setat macaddr programatic, insa incerc si varianta propusa de
>>>> tine
>>>> > 3) testez varianta 3 sa vad ce obtin
>>>>
>>>> Foloseste te rog bottom posting -
>>>> http://en.wikipedia.org/wiki/Posting_style#Bottom-posting
>>>>
>>>> 2) E buna varianta cu MAC-ul programatic, daca-l citesti inapoi e
>>>> corect? Apare
>>>> MAC-ul in output-ul lui ip address show dev ixeth0?
>>>>
>>>> thanks,
>>>> Daniel.
>>>> _______________________________________________
>>>> http://ocw.cs.pub.ro/courses/so2/resurse/lista-discutii
>>>
>>>
>>>
>>
>> _______________________________________________
>> http://ocw.cs.pub.ro/courses/so2/resurse/lista-discutii
>>
>
>
> _______________________________________________
> http://ocw.cs.pub.ro/courses/so2/resurse/lista-discutii
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cursuri.cs.pub.ro/pipermail/so2/attachments/20140324/8877bd7d/attachment.html>
More information about the so2
mailing list