✎ soc:2011:meteger:journal:week1

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====== Week 1 ( May 23 - May 29 ) ======

====== Day 1 ( May 23 ) ======

  * Compile linux kernel from top-of-git code
  * Push (unmodified, as of yet) linux working tree to [[http://git.etherboot.org/people/meteger/linux-2.6/.git/|etherboot server]]
  * Understanding how tg3 probe, open, PHY, etc functions work, read relevant parts of the [[http://www.broadcom.com/support/ethernet_nic/open_source.php|datasheet]]
  * Make minor modification to tg3.c, compile and load module to get used to the process of compiling/testing kernel modules

====== Day 2 ( May 24 ) ======

  * Todo: Add Journal for Day 2

====== Day 3 ( May 25 ) ======

  * More datasheet and code reading about descriptor ring handling, receive/transmit, offloading functions
  * Completely unexpectedly discovered another tg3 test machine. I have 4 cards to test with now.
  * Removed ethtool support functions.  Tested on 2 machines. Reduces lines of code by almost 2000 lines. Yay.
  * Started removing of checksum-offloading functions. Not yet pushed, as it's unfinished.
  * Created new [[http://git.etherboot.org/people/meteger/mytg3/.git/|Driver-only Repository]]. Easier to pull than a full kernel tree.

====== Day 4 ( May 26 ) ======

  * Removed support for DMA addresses > 4GB
  * Removed workarounds needed on some variants for DMA addresses > 4GB
  * Removed power management functions
  * Started removing dependency on kernel's phylib. Luckily I have a card variant that uses the phylib in normal operation.
  * Brush up knowledge about memory barriers

Trace: • week11 • week8 • bochs • winvista • andytim_todo • consultancy • winnt_sanbootconf • week7 • week5 • week6 • eb_imagetypes • week1 • week4 • week10 • week9 • port_winnt_sanboot • debian_lenny_iscsi • week10 • pcmcia_support • week12