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soc:2010:andreif:journal:week3 [2010/06/12 12:15]
andreif
soc:2010:andreif:journal:week3 [2010/06/13 14:54]
mdc Add days of week
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-===== Week 3 [ 7 Jun 2010 - 13 Jun 2010 ] =====+===== Week 3 [ Mon 7 Jun 2010 - Sun 13 Jun 2010 ] =====
  
-==== Day 1 [ 7 Jun 2010 ] ====+==== Day 1 [ Mon 7 Jun 2010 ] ====
  
 Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=52f6bbd8471893361f264d3749b3f8c78df224b2|52f6bbd8471893361f264d3749b3f8c78df224b2]] Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=52f6bbd8471893361f264d3749b3f8c78df224b2|52f6bbd8471893361f264d3749b3f8c78df224b2]]
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 Once that was done I did one of those things I <​del>​hate</​del>​ enjoy so much: manual labor! My old PC was broken into pieces plus I had to go out and get some SATA cables (it had none) because I want to set up a development environment on it too. Since there was no room for it in my room, I had to move the furniture around a bit so it had somewhere to go. Eventually I managed to turn it on and it now boots into its' old OS. Tomorrow I'll format the disk and set up a new Linux distro. Once that was done I did one of those things I <​del>​hate</​del>​ enjoy so much: manual labor! My old PC was broken into pieces plus I had to go out and get some SATA cables (it had none) because I want to set up a development environment on it too. Since there was no room for it in my room, I had to move the furniture around a bit so it had somewhere to go. Eventually I managed to turn it on and it now boots into its' old OS. Tomorrow I'll format the disk and set up a new Linux distro.
  
-==== Day 2 [ 8 Jun 2010 ] ====+==== Day 2 [ Tue 8 Jun 2010 ] ====
  
 Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=1807a8d7b9ca412cb7fa72b457b30cbc33b3069a|1807a8d7b9ca412cb7fa72b457b30cbc33b3069a]] Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=1807a8d7b9ca412cb7fa72b457b30cbc33b3069a|1807a8d7b9ca412cb7fa72b457b30cbc33b3069a]]
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 Finally, the old PC is set up and lspci revealed that the nVidia NIC I have has a CK804 Ethernet Controller, device id 0x0057, which is currently supported by Linux'​s forcedeth driver. On tomorrow'​s list are setting up a driver skeleton for the forcedeth driver and seeking some help on #etherboot regarding pcnet32'​s .irq. Finally, the old PC is set up and lspci revealed that the nVidia NIC I have has a CK804 Ethernet Controller, device id 0x0057, which is currently supported by Linux'​s forcedeth driver. On tomorrow'​s list are setting up a driver skeleton for the forcedeth driver and seeking some help on #etherboot regarding pcnet32'​s .irq.
  
-==== Day 3 [ 9 Jun 2010 ] ====+==== Day 3 [ Wed 9 Jun 2010 ] ====
  
 me.away() me.away()
  
-==== Day 4 [ 10 Jun 2010 ] ====+==== Day 4 [ Thu 10 Jun 2010 ] ====
  
 pcnet32 git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=94c29d96c34aaa97d22664c1f52ba0564d8c2894|94c29d96c34aaa97d22664c1f52ba0564d8c2894]] pcnet32 git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=94c29d96c34aaa97d22664c1f52ba0564d8c2894|94c29d96c34aaa97d22664c1f52ba0564d8c2894]]
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 Also, I set up a basic skeleton for the new forcedeth driver. By the end of the week I want to contact the Linux driver devs and see if they can give me the documentation they had. Also, I set up a basic skeleton for the new forcedeth driver. By the end of the week I want to contact the Linux driver devs and see if they can give me the documentation they had.
  
-==== Day 5 [ 11 Jun 2010 ] ====+==== Day 5 [ Fri 11 Jun 2010 ] ====
  
 me.awayAgain() me.awayAgain()
  
-==== Day 6 [ 12 Jun 2010 ] ====+==== Day 6 [ Sat 12 Jun 2010 ] ====
  
 Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=930c8b5335125c6aaaf4c13863b92bfdf1b57549|930c8b5335125c6aaaf4c13863b92bfdf1b57549]] Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=930c8b5335125c6aaaf4c13863b92bfdf1b57549|930c8b5335125c6aaaf4c13863b92bfdf1b57549]]
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 Anyway, I'm determined to post a patch containing the driver tomorrow, even though it still has problems. I don't expect this to be accepted, Anyway, I'm determined to post a patch containing the driver tomorrow, even though it still has problems. I don't expect this to be accepted,
 the purpose is to expose it to more experienced eyes. Finally, I'll shoot an email to some of the forcedeth driver devs tomorrow regarding the docs. the purpose is to expose it to more experienced eyes. Finally, I'll shoot an email to some of the forcedeth driver devs tomorrow regarding the docs.
 +
 +==== Day 7 [ Sun 13 Jun 2010 ] ====
 +
 +Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=5a3434ce23f524788d5eb9959628cfa1789f687b|5a3434ce23f524788d5eb9959628cfa1789f687b]]
 +
 +Well, today was full of gpxe-esque events :). Meteger managed to trace a bug that was causing pxelinux.0 to fail booting an Ubuntu image. I managed to mix the buffer length and the length of the received message so the iobuf didn't get trimmed to the proper size which I suspect
 +caused some bad data to be received.
 +
 +The weekly meeting went well too, and it is a real pleasure to debug stuff together with other people. I have a lot of work to do on my debugging skills but luckily I have awesome people to learn from.
 +
 +Like I've planned, I sent a patch containing the driver. I usually formatted small, one-commit patches, using ''​git-format-patch''​ so I wasn't sure what to do with the driver since it had multiple commits. Stefanha guided me towards ''​git-send-email''​ and ''​git-rebase''​ which successfully got the patch sent. Unfortunately,​ it isn't properly formatted since the diff between the old driver and the new one makes it hard to read. So the patch sending wasn't what I call a successful attempt, but the things that are learned the hard way are best remembered.
 +
 +I've also sent an email to one of the forcedeth driver devs to see if he can part with the documentation. Regardless, I'll start working on the driver since I feel that I have gained a sufficient amount of insight into driver writing to understand the forcedeth driver only from its source code. Tomorrow I'll start working on .probe.
 +

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