> -----Original Message----- > From: Bjørn Mork [mailto:bjorn@xxxxxxx] > Sent: Monday, February 15, 2016 10:44 AM > To: Carlo Caione <carlo@xxxxxxxxxx> > Cc: Rob Groner <rgroner@xxxxxxx>; kernelnewbies@xxxxxxxxxxxxxxxxx > Subject: Re: Finding when a chip was supported in the kernel > > Carlo Caione <carlo@xxxxxxxxxx> writes: > > > On Mon, Feb 15, 2016 at 3:44 PM, Rob Groner <rgroner@xxxxxxx> wrote: > >> <snip> > > git blame on the other hand, gives you this immediately: > > bjorn@nemi:/usr/local/src/git/linux$ git blame > drivers/net/ethernet/intel/e1000e/82571.c > e78b80b1079e1 drivers/net/ethernet/intel/e1000e/82571.c (David Ertman > 2014-02-04 01:56:06 +0000 1) /* Intel PRO/1000 Linux driver > [..] > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 21) > e921eb1ac411a drivers/net/ethernet/intel/e1000e/82571.c (Bruce Allan > 2012-11-28 09:28:37 +0000 22) /* 82571EB Gigabit Ethernet Controller > 1605927fcee41 drivers/net/e1000e/82571.c (Bruce Allan 2008-11- > 21 16:51:06 -0800 23) * 82571EB Gigabit Ethernet Controller (Copper) > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 24) * 82571EB Gigabit Ethernet Controller (Fiber) > ad68076e07fa0 drivers/net/e1000e/82571.c (Bruce Allan 2008-03- > 28 09:15:03 -0700 25) * 82571EB Dual Port Gigabit Mezzanine Adapter > ad68076e07fa0 drivers/net/e1000e/82571.c (Bruce Allan 2008-03- > 28 09:15:03 -0700 26) * 82571EB Quad Port Gigabit Mezzanine Adapter > ad68076e07fa0 drivers/net/e1000e/82571.c (Bruce Allan 2008-03- > 28 09:15:03 -0700 27) * 82571PT Gigabit PT Quad Port Server ExpressMo > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 28) * 82572EI Gigabit Ethernet Controller (Copper) > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 29) * 82572EI Gigabit Ethernet Controller (Fiber) > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 30) * 82572EI Gigabit Ethernet Controller > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 31) * 82573V Gigabit Ethernet Controller (Copper) > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 32) * 82573E Gigabit Ethernet Controller (Copper) > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 33) * 82573L Gigabit Ethernet Controller > 4662e82b2cb41 drivers/net/e1000e/82571.c (Bruce Allan 2008-08- > 26 18:37:06 -0700 34) * 82574L Gigabit Network Connection > 8c81c9c315b7e drivers/net/e1000e/82571.c (Alexander Duyck 2009- > 03-19 01:12:27 +0000 35) * 82583V Gigabit Network Connection > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 36) */ > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 37) > bc7f75fa97884 drivers/net/e1000e/82571.c (Auke Kok 2007-09-17 > 12:30:59 -0700 38) #include "e1000.h" > > > > And you can verify by looking at the commit: > > > bjorn@nemi:/usr/local/src/git/linux$ git show 4662e82b2cb41 commit > 4662e82b2cb41c60826e50474dd86dd5c6372b0c > Author: Bruce Allan <bruce.w.allan@xxxxxxxxx> > Date: Tue Aug 26 18:37:06 2008 -0700 > > e1000e: add support for new 82574L part > > This new part has the same feature set as previous parts with the addition > of MSI-X support. > > Signed-off-by: Bruce Allan <bruce.w.allan@xxxxxxxxx> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx> > Signed-off-by: Jeff Garzik <jgarzik@xxxxxxxxxx> > > [etc] > > > > I'll admit that this example was extremely easy. Most of the time you'll have > to figure out the relevant commits by looking at code lines related to that > chip. But it's still easier to look at git blame than the log if the support was > added to an existing driver. > Hmm...I don't think I share the idea that it was extremely easy. :) But it is something I can try at least, assuming I can get at least as far as figuring out which driver file a particular chip gets its support from. With Intel chips, that IS pretty easy. Using the blame I see that it gives a date and a commit reference. How do I then correlate that to the kernel version where it first showed up? I'm assuming there's a git command for showing that. Rob _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
